Commit | Line | Data |
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2469cfa2 NC |
1 | /* tc-msp430.c -- Assembler code for the Texas Instruments MSP430 |
2 | ||
250d07de | 3 | Copyright (C) 2002-2021 Free Software Foundation, Inc. |
2469cfa2 NC |
4 | Contributed by Dmitry Diky <diwil@mail.ru> |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
2469cfa2 NC |
11 | any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to | |
4b4da160 NC |
20 | the Free Software Foundation, 51 Franklin Street - Fifth Floor, |
21 | Boston, MA 02110-1301, USA. */ | |
2469cfa2 | 22 | |
df7b86aa | 23 | #include "as.h" |
2469cfa2 | 24 | #include <limits.h> |
2469cfa2 NC |
25 | #include "subsegs.h" |
26 | #include "opcode/msp430.h" | |
27 | #include "safe-ctype.h" | |
2a9a06c1 | 28 | #include "dwarf2dbg.h" |
13761a11 | 29 | #include "elf/msp430.h" |
ede77e69 | 30 | #include "libiberty.h" |
2469cfa2 | 31 | |
79cf5950 | 32 | /* We will disable polymorphs by default because it is dangerous. |
708587a4 | 33 | The potential problem here is the following: assume we got the |
77592908 DD |
34 | following code: |
35 | ||
36 | jump .l1 | |
37 | nop | |
38 | jump subroutine ; external symbol | |
39 | .l1: | |
40 | nop | |
41 | ret | |
13761a11 | 42 | |
77592908 DD |
43 | In case of assembly time relaxation we'll get: |
44 | 0: jmp .l1 <.text +0x08> (reloc deleted) | |
45 | 2: nop | |
46 | 4: br subroutine | |
47 | .l1: | |
48 | 8: nop | |
49 | 10: ret | |
50 | ||
79cf5950 NC |
51 | If the 'subroutine' is within +-1024 bytes range then linker |
52 | will produce: | |
77592908 DD |
53 | 0: jmp .text +0x08 |
54 | 2: nop | |
55 | 4: jmp subroutine | |
56 | .l1: | |
57 | 6: nop | |
58 | 8: ret ; 'jmp .text +0x08' will land here. WRONG!!! | |
59 | ||
77592908 | 60 | The workaround is the following: |
79cf5950 | 61 | 1. Declare global var enable_polymorphs which set to 1 via option -mp. |
77592908 DD |
62 | 2. Declare global var enable_relax which set to 1 via option -mQ. |
63 | ||
64 | If polymorphs are enabled, and relax isn't, treat all jumps as long jumps, | |
65 | do not delete any relocs and leave them for linker. | |
13761a11 | 66 | |
79cf5950 | 67 | If relax is enabled, relax at assembly time and kill relocs as necessary. */ |
77592908 DD |
68 | |
69 | int msp430_enable_relax; | |
70 | int msp430_enable_polys; | |
71 | ||
f5c7edf4 AM |
72 | /* GCC uses the some condition codes which we'll |
73 | implement as new polymorph instructions. | |
13761a11 | 74 | |
f5c7edf4 AM |
75 | COND EXPL SHORT JUMP LONG JUMP |
76 | =============================================== | |
77 | eq == jeq jne +4; br lab | |
78 | ne != jne jeq +4; br lab | |
79 | ||
80 | ltn honours no-overflow flag | |
81 | ltn < jn jn +2; jmp +4; br lab | |
82 | ||
13761a11 | 83 | lt < jl jge +4; br lab |
f5c7edf4 AM |
84 | ltu < jlo lhs +4; br lab |
85 | le <= see below | |
86 | leu <= see below | |
87 | ||
88 | gt > see below | |
89 | gtu > see below | |
90 | ge >= jge jl +4; br lab | |
91 | geu >= jhs jlo +4; br lab | |
92 | =============================================== | |
93 | ||
94 | Therefore, new opcodes are (BranchEQ -> beq; and so on...) | |
95 | beq,bne,blt,bltn,bltu,bge,bgeu | |
13761a11 NC |
96 | 'u' means unsigned compares |
97 | ||
f5c7edf4 AM |
98 | Also, we add 'jump' instruction: |
99 | jump UNCOND -> jmp br lab | |
100 | ||
101 | They will have fmt == 4, and insn_opnumb == number of instruction. */ | |
102 | ||
13761a11 | 103 | struct rcodes_s |
f5c7edf4 | 104 | { |
e0471c16 | 105 | const char * name; |
f5c7edf4 AM |
106 | int index; /* Corresponding insn_opnumb. */ |
107 | int sop; /* Opcode if jump length is short. */ | |
108 | long lpos; /* Label position. */ | |
109 | long lop0; /* Opcode 1 _word_ (16 bits). */ | |
110 | long lop1; /* Opcode second word. */ | |
111 | long lop2; /* Opcode third word. */ | |
112 | }; | |
113 | ||
114 | #define MSP430_RLC(n,i,sop,o1) \ | |
115 | {#n, i, sop, 2, (o1 + 2), 0x4010, 0} | |
116 | ||
13761a11 | 117 | static struct rcodes_s msp430_rcodes[] = |
f5c7edf4 AM |
118 | { |
119 | MSP430_RLC (beq, 0, 0x2400, 0x2000), | |
120 | MSP430_RLC (bne, 1, 0x2000, 0x2400), | |
121 | MSP430_RLC (blt, 2, 0x3800, 0x3400), | |
122 | MSP430_RLC (bltu, 3, 0x2800, 0x2c00), | |
123 | MSP430_RLC (bge, 4, 0x3400, 0x3800), | |
124 | MSP430_RLC (bgeu, 5, 0x2c00, 0x2800), | |
125 | {"bltn", 6, 0x3000, 3, 0x3000 + 1, 0x3c00 + 2,0x4010}, | |
126 | {"jump", 7, 0x3c00, 1, 0x4010, 0, 0}, | |
127 | {0,0,0,0,0,0,0} | |
128 | }; | |
f5c7edf4 | 129 | |
13761a11 NC |
130 | #undef MSP430_RLC |
131 | #define MSP430_RLC(n,i,sop,o1) \ | |
132 | {#n, i, sop, 2, (o1 + 2), 0x0030, 0} | |
133 | ||
134 | static struct rcodes_s msp430x_rcodes[] = | |
135 | { | |
136 | MSP430_RLC (beq, 0, 0x2400, 0x2000), | |
137 | MSP430_RLC (bne, 1, 0x2000, 0x2400), | |
138 | MSP430_RLC (blt, 2, 0x3800, 0x3400), | |
139 | MSP430_RLC (bltu, 3, 0x2800, 0x2c00), | |
140 | MSP430_RLC (bge, 4, 0x3400, 0x3800), | |
141 | MSP430_RLC (bgeu, 5, 0x2c00, 0x2800), | |
142 | {"bltn", 6, 0x3000, 3, 0x0030 + 1, 0x3c00 + 2, 0x3000}, | |
143 | {"jump", 7, 0x3c00, 1, 0x0030, 0, 0}, | |
144 | {0,0,0,0,0,0,0} | |
145 | }; | |
146 | #undef MSP430_RLC | |
f5c7edf4 AM |
147 | |
148 | /* More difficult than above and they have format 5. | |
13761a11 | 149 | |
f5c7edf4 AM |
150 | COND EXPL SHORT LONG |
151 | ================================================================= | |
152 | gt > jeq +2; jge label jeq +6; jl +4; br label | |
153 | gtu > jeq +2; jhs label jeq +6; jlo +4; br label | |
154 | leu <= jeq label; jlo label jeq +2; jhs +4; br label | |
155 | le <= jeq label; jl label jeq +2; jge +4; br label | |
156 | ================================================================= */ | |
157 | ||
13761a11 | 158 | struct hcodes_s |
f5c7edf4 | 159 | { |
e0471c16 | 160 | const char * name; |
f5c7edf4 AM |
161 | int index; /* Corresponding insn_opnumb. */ |
162 | int tlab; /* Number of labels in short mode. */ | |
163 | int op0; /* Opcode for first word of short jump. */ | |
164 | int op1; /* Opcode for second word of short jump. */ | |
165 | int lop0; /* Opcodes for long jump mode. */ | |
166 | int lop1; | |
167 | int lop2; | |
168 | }; | |
169 | ||
13761a11 | 170 | static struct hcodes_s msp430_hcodes[] = |
f5c7edf4 AM |
171 | { |
172 | {"bgt", 0, 1, 0x2401, 0x3400, 0x2403, 0x3802, 0x4010 }, | |
173 | {"bgtu", 1, 1, 0x2401, 0x2c00, 0x2403, 0x2802, 0x4010 }, | |
174 | {"bleu", 2, 2, 0x2400, 0x2800, 0x2401, 0x2c02, 0x4010 }, | |
175 | {"ble", 3, 2, 0x2400, 0x3800, 0x2401, 0x3402, 0x4010 }, | |
176 | {0,0,0,0,0,0,0,0} | |
177 | }; | |
178 | ||
13761a11 NC |
179 | static struct hcodes_s msp430x_hcodes[] = |
180 | { | |
181 | {"bgt", 0, 1, 0x2401, 0x3400, 0x2403, 0x3802, 0x0030 }, | |
182 | {"bgtu", 1, 1, 0x2401, 0x2c00, 0x2403, 0x2802, 0x0030 }, | |
183 | {"bleu", 2, 2, 0x2400, 0x2800, 0x2401, 0x2c02, 0x0030 }, | |
184 | {"ble", 3, 2, 0x2400, 0x3800, 0x2401, 0x3402, 0x0030 }, | |
185 | {0,0,0,0,0,0,0,0} | |
186 | }; | |
187 | ||
2469cfa2 NC |
188 | const char comment_chars[] = ";"; |
189 | const char line_comment_chars[] = "#"; | |
870074dd | 190 | const char line_separator_chars[] = "{"; |
2469cfa2 NC |
191 | const char EXP_CHARS[] = "eE"; |
192 | const char FLT_CHARS[] = "dD"; | |
193 | ||
194 | /* Handle long expressions. */ | |
195 | extern LITTLENUM_TYPE generic_bignum[]; | |
196 | ||
629310ab | 197 | static htab_t msp430_hash; |
2469cfa2 | 198 | |
b18c562e NC |
199 | /* Relaxations. */ |
200 | #define STATE_UNCOND_BRANCH 1 /* jump */ | |
201 | #define STATE_NOOV_BRANCH 3 /* bltn */ | |
202 | #define STATE_SIMPLE_BRANCH 2 /* bne, beq, etc... */ | |
203 | #define STATE_EMUL_BRANCH 4 | |
204 | ||
205 | #define CNRL 2 | |
206 | #define CUBL 4 | |
207 | #define CNOL 8 | |
208 | #define CSBL 6 | |
209 | #define CEBL 4 | |
210 | ||
211 | /* Length. */ | |
5d5b0bd3 JL |
212 | #define STATE_BITS10 1 /* Wild guess. short jump. */ |
213 | #define STATE_WORD 2 /* 2 bytes pc rel. addr. more. */ | |
214 | #define STATE_UNDEF 3 /* Cannot handle this yet. convert to word mode. */ | |
b18c562e NC |
215 | |
216 | #define ENCODE_RELAX(what,length) (((what) << 2) + (length)) | |
217 | #define RELAX_STATE(s) ((s) & 3) | |
218 | #define RELAX_LEN(s) ((s) >> 2) | |
219 | #define RELAX_NEXT(a,b) ENCODE_RELAX (a, b + 1) | |
220 | ||
221 | relax_typeS md_relax_table[] = | |
222 | { | |
223 | /* Unused. */ | |
224 | {1, 1, 0, 0}, | |
225 | {1, 1, 0, 0}, | |
226 | {1, 1, 0, 0}, | |
227 | {1, 1, 0, 0}, | |
228 | ||
229 | /* Unconditional jump. */ | |
230 | {1, 1, 8, 5}, | |
231 | {1024, -1024, CNRL, RELAX_NEXT (STATE_UNCOND_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
232 | {0, 0, CUBL, RELAX_NEXT (STATE_UNCOND_BRANCH, STATE_WORD)}, /* state word */ | |
233 | {1, 1, CUBL, 0}, /* state undef */ | |
234 | ||
235 | /* Simple branches. */ | |
236 | {0, 0, 8, 9}, | |
237 | {1024, -1024, CNRL, RELAX_NEXT (STATE_SIMPLE_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
238 | {0, 0, CSBL, RELAX_NEXT (STATE_SIMPLE_BRANCH, STATE_WORD)}, /* state word */ | |
239 | {1, 1, CSBL, 0}, | |
240 | ||
241 | /* blt no overflow branch. */ | |
242 | {1, 1, 8, 13}, | |
243 | {1024, -1024, CNRL, RELAX_NEXT (STATE_NOOV_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
244 | {0, 0, CNOL, RELAX_NEXT (STATE_NOOV_BRANCH, STATE_WORD)}, /* state word */ | |
245 | {1, 1, CNOL, 0}, | |
246 | ||
247 | /* Emulated branches. */ | |
248 | {1, 1, 8, 17}, | |
249 | {1020, -1020, CEBL, RELAX_NEXT (STATE_EMUL_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
250 | {0, 0, CNOL, RELAX_NEXT (STATE_EMUL_BRANCH, STATE_WORD)}, /* state word */ | |
251 | {1, 1, CNOL, 0} | |
252 | }; | |
253 | ||
2469cfa2 | 254 | |
837a17b3 | 255 | #define MAX_OP_LEN 4096 |
2469cfa2 | 256 | |
638d3803 NC |
257 | typedef enum msp_isa |
258 | { | |
259 | MSP_ISA_430, | |
260 | MSP_ISA_430X, | |
261 | MSP_ISA_430Xv2 | |
262 | } msp_isa; | |
263 | ||
65d7bab5 | 264 | static enum msp_isa selected_isa = MSP_ISA_430Xv2; |
638d3803 NC |
265 | |
266 | static inline bfd_boolean | |
267 | target_is_430x (void) | |
268 | { | |
65d7bab5 | 269 | return selected_isa >= MSP_ISA_430X; |
638d3803 NC |
270 | } |
271 | ||
272 | static inline bfd_boolean | |
273 | target_is_430xv2 (void) | |
274 | { | |
65d7bab5 | 275 | return selected_isa == MSP_ISA_430Xv2; |
638d3803 | 276 | } |
13761a11 | 277 | |
131cb553 JL |
278 | /* Generate an absolute 16-bit relocation, for 430 (!extended_op) instructions |
279 | only. | |
280 | For the 430X we generate a 430 relocation only for the case where part of an | |
281 | expression is being extracted (e.g. #hi(EXP), #lo(EXP). Otherwise generate | |
282 | a 430X relocation. | |
13761a11 | 283 | For the 430 we generate a relocation without assembler range checking |
131cb553 | 284 | if we are handling an immediate value or a byte-width instruction. */ |
00b32ff2 | 285 | |
13761a11 | 286 | #undef CHECK_RELOC_MSP430 |
00b32ff2 NC |
287 | #define CHECK_RELOC_MSP430(OP) \ |
288 | (target_is_430x () \ | |
131cb553 JL |
289 | ? ((OP).expp == MSP_EXPP_ALL \ |
290 | ? BFD_RELOC_MSP430X_ABS16 \ | |
291 | : ((OP).vshift == 1 \ | |
292 | ? BFD_RELOC_MSP430_ABS_HI16 : BFD_RELOC_16)) \ | |
00b32ff2 | 293 | : ((imm_op || byte_op) \ |
13761a11 NC |
294 | ? BFD_RELOC_MSP430_16_BYTE : BFD_RELOC_MSP430_16)) |
295 | ||
296 | /* Generate a 16-bit pc-relative relocation. | |
33eaf5de | 297 | For the 430X we generate a relocation without linker range checking. |
13761a11 NC |
298 | For the 430 we generate a relocation without assembler range checking |
299 | if we are handling an immediate value or a byte-width instruction. */ | |
300 | #undef CHECK_RELOC_MSP430_PCREL | |
301 | #define CHECK_RELOC_MSP430_PCREL \ | |
638d3803 | 302 | (target_is_430x () \ |
13761a11 NC |
303 | ? BFD_RELOC_MSP430X_PCR16 \ |
304 | : (imm_op || byte_op) \ | |
305 | ? BFD_RELOC_MSP430_16_PCREL_BYTE : BFD_RELOC_MSP430_16_PCREL) | |
2469cfa2 | 306 | |
b18c562e NC |
307 | /* Profiling capability: |
308 | It is a performance hit to use gcc's profiling approach for this tiny target. | |
309 | Even more -- jtag hardware facility does not perform any profiling functions. | |
310 | However we've got gdb's built-in simulator where we can do anything. | |
311 | Therefore my suggestion is: | |
312 | ||
313 | We define new section ".profiler" which holds all profiling information. | |
314 | We define new pseudo operation .profiler which will instruct assembler to | |
315 | add new profile entry to the object file. Profile should take place at the | |
316 | present address. | |
317 | ||
318 | Pseudo-op format: | |
319 | ||
320 | .profiler flags,function_to_profile [, cycle_corrector, extra] | |
321 | ||
322 | where 'flags' is a combination of the following chars: | |
323 | s - function Start | |
324 | x - function eXit | |
325 | i - function is in Init section | |
326 | f - function is in Fini section | |
327 | l - Library call | |
328 | c - libC standard call | |
329 | d - stack value Demand (saved at run-time in simulator) | |
330 | I - Interrupt service routine | |
331 | P - Prologue start | |
332 | p - Prologue end | |
333 | E - Epilogue start | |
334 | e - Epilogue end | |
335 | j - long Jump/ sjlj unwind | |
336 | a - an Arbitrary code fragment | |
337 | t - exTra parameter saved (constant value like frame size) | |
338 | '""' optional: "sil" == sil | |
339 | ||
340 | function_to_profile - function's address | |
341 | cycle_corrector - a value which should be added to the cycle | |
342 | counter, zero if omitted | |
343 | extra - some extra parameter, zero if omitted. | |
344 | ||
345 | For example: | |
346 | ------------------------------ | |
347 | .global fxx | |
348 | .type fxx,@function | |
349 | fxx: | |
350 | .LFrameOffset_fxx=0x08 | |
351 | .profiler "scdP", fxx ; function entry. | |
352 | ; we also demand stack value to be displayed | |
353 | push r11 | |
354 | push r10 | |
355 | push r9 | |
356 | push r8 | |
357 | .profiler "cdp",fxx,0, .LFrameOffset_fxx ; check stack value at this point | |
358 | ; (this is a prologue end) | |
79cf5950 | 359 | ; note, that spare var filled with the frame size |
b18c562e NC |
360 | mov r15,r8 |
361 | .... | |
362 | .profiler cdE,fxx ; check stack | |
363 | pop r8 | |
364 | pop r9 | |
365 | pop r10 | |
366 | pop r11 | |
367 | .profiler xcde,fxx,3 ; exit adds 3 to the cycle counter | |
368 | ret ; cause 'ret' insn takes 3 cycles | |
369 | ------------------------------- | |
370 | ||
371 | This profiling approach does not produce any overhead and | |
372 | absolutely harmless. | |
373 | So, even profiled code can be uploaded to the MCU. */ | |
374 | #define MSP430_PROFILER_FLAG_ENTRY 1 /* s */ | |
375 | #define MSP430_PROFILER_FLAG_EXIT 2 /* x */ | |
376 | #define MSP430_PROFILER_FLAG_INITSECT 4 /* i */ | |
377 | #define MSP430_PROFILER_FLAG_FINISECT 8 /* f */ | |
378 | #define MSP430_PROFILER_FLAG_LIBCALL 0x10 /* l */ | |
379 | #define MSP430_PROFILER_FLAG_STDCALL 0x20 /* c */ | |
380 | #define MSP430_PROFILER_FLAG_STACKDMD 0x40 /* d */ | |
381 | #define MSP430_PROFILER_FLAG_ISR 0x80 /* I */ | |
382 | #define MSP430_PROFILER_FLAG_PROLSTART 0x100 /* P */ | |
383 | #define MSP430_PROFILER_FLAG_PROLEND 0x200 /* p */ | |
384 | #define MSP430_PROFILER_FLAG_EPISTART 0x400 /* E */ | |
385 | #define MSP430_PROFILER_FLAG_EPIEND 0x800 /* e */ | |
386 | #define MSP430_PROFILER_FLAG_JUMP 0x1000 /* j */ | |
387 | #define MSP430_PROFILER_FLAG_FRAGMENT 0x2000 /* a */ | |
388 | #define MSP430_PROFILER_FLAG_EXTRA 0x4000 /* t */ | |
389 | #define MSP430_PROFILER_FLAG_notyet 0x8000 /* ? */ | |
2469cfa2 | 390 | |
b18c562e NC |
391 | static int |
392 | pow2value (int y) | |
2469cfa2 | 393 | { |
b18c562e NC |
394 | int n = 0; |
395 | unsigned int x; | |
2469cfa2 | 396 | |
b18c562e | 397 | x = y; |
2469cfa2 | 398 | |
b18c562e NC |
399 | if (!x) |
400 | return 1; | |
2469cfa2 | 401 | |
b18c562e NC |
402 | for (; x; x = x >> 1) |
403 | if (x & 1) | |
404 | n++; | |
405 | ||
406 | return n == 1; | |
407 | } | |
408 | ||
409 | /* Parse ordinary expression. */ | |
410 | ||
411 | static char * | |
412 | parse_exp (char * s, expressionS * op) | |
2469cfa2 | 413 | { |
b18c562e NC |
414 | input_line_pointer = s; |
415 | expression (op); | |
416 | if (op->X_op == O_absent) | |
417 | as_bad (_("missing operand")); | |
5d5b0bd3 | 418 | |
2bfa0cdf NC |
419 | /* Our caller is likely to check that the entire expression was parsed. |
420 | If we have found a hex constant with an 'h' suffix, ilp will be left | |
421 | pointing at the 'h', so skip it here. */ | |
422 | if (input_line_pointer != NULL | |
423 | && op->X_op == O_constant | |
424 | && (*input_line_pointer == 'h' || *input_line_pointer == 'H')) | |
425 | ++ input_line_pointer; | |
b18c562e NC |
426 | return input_line_pointer; |
427 | } | |
2469cfa2 | 428 | |
b18c562e NC |
429 | |
430 | /* Delete spaces from s: X ( r 1 2) => X(r12). */ | |
2469cfa2 NC |
431 | |
432 | static void | |
b18c562e | 433 | del_spaces (char * s) |
2469cfa2 | 434 | { |
b18c562e NC |
435 | while (*s) |
436 | { | |
437 | if (ISSPACE (*s)) | |
438 | { | |
439 | char *m = s + 1; | |
2469cfa2 | 440 | |
b18c562e NC |
441 | while (ISSPACE (*m) && *m) |
442 | m++; | |
443 | memmove (s, m, strlen (m) + 1); | |
444 | } | |
445 | else | |
446 | s++; | |
447 | } | |
448 | } | |
2469cfa2 | 449 | |
b18c562e NC |
450 | static inline char * |
451 | skip_space (char * s) | |
452 | { | |
453 | while (ISSPACE (*s)) | |
454 | ++s; | |
455 | return s; | |
456 | } | |
2469cfa2 | 457 | |
708587a4 | 458 | /* Extract one word from FROM and copy it to TO. Delimiters are ",;\n" */ |
b18c562e NC |
459 | |
460 | static char * | |
461 | extract_operand (char * from, char * to, int limit) | |
462 | { | |
463 | int size = 0; | |
464 | ||
465 | /* Drop leading whitespace. */ | |
466 | from = skip_space (from); | |
467 | ||
468 | while (size < limit && *from) | |
469 | { | |
470 | *(to + size) = *from; | |
471 | if (*from == ',' || *from == ';' || *from == '\n') | |
472 | break; | |
473 | from++; | |
474 | size++; | |
475 | } | |
476 | ||
477 | *(to + size) = 0; | |
478 | del_spaces (to); | |
479 | ||
480 | from++; | |
481 | ||
482 | return from; | |
2469cfa2 NC |
483 | } |
484 | ||
b18c562e NC |
485 | static void |
486 | msp430_profiler (int dummy ATTRIBUTE_UNUSED) | |
2469cfa2 | 487 | { |
b18c562e NC |
488 | char buffer[1024]; |
489 | char f[32]; | |
490 | char * str = buffer; | |
491 | char * flags = f; | |
492 | int p_flags = 0; | |
493 | char * halt; | |
494 | int ops = 0; | |
495 | int left; | |
496 | char * s; | |
497 | segT seg; | |
498 | int subseg; | |
499 | char * end = 0; | |
500 | expressionS exp; | |
501 | expressionS exp1; | |
502 | ||
503 | s = input_line_pointer; | |
504 | end = input_line_pointer; | |
505 | ||
506 | while (*end && *end != '\n') | |
507 | end++; | |
508 | ||
509 | while (*s && *s != '\n') | |
510 | { | |
511 | if (*s == ',') | |
512 | ops++; | |
513 | s++; | |
514 | } | |
2469cfa2 | 515 | |
b18c562e NC |
516 | left = 3 - ops; |
517 | ||
518 | if (ops < 1) | |
519 | { | |
520 | as_bad (_(".profiler pseudo requires at least two operands.")); | |
521 | input_line_pointer = end; | |
522 | return; | |
523 | } | |
524 | ||
525 | input_line_pointer = extract_operand (input_line_pointer, flags, 32); | |
526 | ||
527 | while (*flags) | |
528 | { | |
529 | switch (*flags) | |
530 | { | |
531 | case '"': | |
532 | break; | |
533 | case 'a': | |
534 | p_flags |= MSP430_PROFILER_FLAG_FRAGMENT; | |
535 | break; | |
536 | case 'j': | |
537 | p_flags |= MSP430_PROFILER_FLAG_JUMP; | |
538 | break; | |
539 | case 'P': | |
540 | p_flags |= MSP430_PROFILER_FLAG_PROLSTART; | |
541 | break; | |
542 | case 'p': | |
543 | p_flags |= MSP430_PROFILER_FLAG_PROLEND; | |
544 | break; | |
545 | case 'E': | |
546 | p_flags |= MSP430_PROFILER_FLAG_EPISTART; | |
547 | break; | |
548 | case 'e': | |
549 | p_flags |= MSP430_PROFILER_FLAG_EPIEND; | |
550 | break; | |
551 | case 's': | |
552 | p_flags |= MSP430_PROFILER_FLAG_ENTRY; | |
553 | break; | |
554 | case 'x': | |
555 | p_flags |= MSP430_PROFILER_FLAG_EXIT; | |
556 | break; | |
557 | case 'i': | |
558 | p_flags |= MSP430_PROFILER_FLAG_INITSECT; | |
559 | break; | |
560 | case 'f': | |
561 | p_flags |= MSP430_PROFILER_FLAG_FINISECT; | |
562 | break; | |
563 | case 'l': | |
564 | p_flags |= MSP430_PROFILER_FLAG_LIBCALL; | |
565 | break; | |
566 | case 'c': | |
567 | p_flags |= MSP430_PROFILER_FLAG_STDCALL; | |
568 | break; | |
569 | case 'd': | |
570 | p_flags |= MSP430_PROFILER_FLAG_STACKDMD; | |
571 | break; | |
572 | case 'I': | |
573 | p_flags |= MSP430_PROFILER_FLAG_ISR; | |
574 | break; | |
575 | case 't': | |
576 | p_flags |= MSP430_PROFILER_FLAG_EXTRA; | |
577 | break; | |
578 | default: | |
579 | as_warn (_("unknown profiling flag - ignored.")); | |
580 | break; | |
581 | } | |
582 | flags++; | |
583 | } | |
584 | ||
585 | if (p_flags | |
586 | && ( ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_ENTRY | |
587 | | MSP430_PROFILER_FLAG_EXIT)) | |
588 | || ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_PROLSTART | |
589 | | MSP430_PROFILER_FLAG_PROLEND | |
590 | | MSP430_PROFILER_FLAG_EPISTART | |
591 | | MSP430_PROFILER_FLAG_EPIEND)) | |
592 | || ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_INITSECT | |
593 | | MSP430_PROFILER_FLAG_FINISECT)))) | |
594 | { | |
79cf5950 | 595 | as_bad (_("ambiguous flags combination - '.profiler' directive ignored.")); |
b18c562e NC |
596 | input_line_pointer = end; |
597 | return; | |
598 | } | |
599 | ||
600 | /* Generate temp symbol which denotes current location. */ | |
79cf5950 | 601 | if (now_seg == absolute_section) /* Paranoia ? */ |
b18c562e NC |
602 | { |
603 | exp1.X_op = O_constant; | |
604 | exp1.X_add_number = abs_section_offset; | |
79cf5950 | 605 | as_warn (_("profiling in absolute section?")); |
b18c562e NC |
606 | } |
607 | else | |
608 | { | |
609 | exp1.X_op = O_symbol; | |
610 | exp1.X_add_symbol = symbol_temp_new_now (); | |
611 | exp1.X_add_number = 0; | |
612 | } | |
613 | ||
614 | /* Generate a symbol which holds flags value. */ | |
615 | exp.X_op = O_constant; | |
616 | exp.X_add_number = p_flags; | |
617 | ||
618 | /* Save current section. */ | |
619 | seg = now_seg; | |
620 | subseg = now_subseg; | |
621 | ||
622 | /* Now go to .profiler section. */ | |
a8c4d40b | 623 | obj_elf_change_section (".profiler", SHT_PROGBITS, 0, 0, 0, 0, 0); |
b18c562e NC |
624 | |
625 | /* Save flags. */ | |
626 | emit_expr (& exp, 2); | |
627 | ||
628 | /* Save label value. */ | |
629 | emit_expr (& exp1, 2); | |
630 | ||
631 | while (ops--) | |
632 | { | |
633 | /* Now get profiling info. */ | |
634 | halt = extract_operand (input_line_pointer, str, 1024); | |
635 | /* Process like ".word xxx" directive. */ | |
2bfa0cdf | 636 | (void) parse_exp (str, & exp); |
b18c562e NC |
637 | emit_expr (& exp, 2); |
638 | input_line_pointer = halt; | |
639 | } | |
640 | ||
641 | /* Fill the rest with zeros. */ | |
642 | exp.X_op = O_constant; | |
643 | exp.X_add_number = 0; | |
644 | while (left--) | |
645 | emit_expr (& exp, 2); | |
646 | ||
647 | /* Return to current section. */ | |
648 | subseg_set (seg, subseg); | |
2469cfa2 NC |
649 | } |
650 | ||
651 | static char * | |
b18c562e | 652 | extract_word (char * from, char * to, int limit) |
2469cfa2 | 653 | { |
2469cfa2 NC |
654 | char *op_end; |
655 | int size = 0; | |
656 | ||
657 | /* Drop leading whitespace. */ | |
658 | from = skip_space (from); | |
659 | *to = 0; | |
660 | ||
661 | /* Find the op code end. */ | |
87975d2a | 662 | for (op_end = from; *op_end != 0 && is_part_of_name (*op_end);) |
2469cfa2 NC |
663 | { |
664 | to[size++] = *op_end++; | |
665 | if (size + 1 >= limit) | |
666 | break; | |
667 | } | |
668 | ||
669 | to[size] = 0; | |
670 | return op_end; | |
671 | } | |
672 | ||
b18c562e | 673 | #define OPTION_MMCU 'm' |
77592908 DD |
674 | #define OPTION_RELAX 'Q' |
675 | #define OPTION_POLYMORPHS 'P' | |
13761a11 NC |
676 | #define OPTION_LARGE 'l' |
677 | static bfd_boolean large_model = FALSE; | |
678 | #define OPTION_NO_INTR_NOPS 'N' | |
65d7bab5 | 679 | #define OPTION_INTR_NOPS 'n' |
a75555d1 | 680 | static bfd_boolean gen_interrupt_nops = FALSE; |
69227609 NC |
681 | #define OPTION_WARN_INTR_NOPS 'y' |
682 | #define OPTION_NO_WARN_INTR_NOPS 'Y' | |
65d7bab5 | 683 | static bfd_boolean warn_interrupt_nops = TRUE; |
d5579774 JL |
684 | #define OPTION_UNKNOWN_INTR_NOPS 'u' |
685 | #define OPTION_NO_UNKNOWN_INTR_NOPS 'U' | |
686 | static bfd_boolean do_unknown_interrupt_nops = TRUE; | |
638d3803 | 687 | #define OPTION_MCPU 'c' |
7ef3addb JL |
688 | #define OPTION_DATA_REGION 'r' |
689 | static bfd_boolean upper_data_region_in_use = FALSE; | |
c0ea7c52 JL |
690 | /* The default is to use the lower region only. */ |
691 | static bfd_boolean lower_data_region_only = TRUE; | |
b18c562e | 692 | |
1de037a0 JL |
693 | /* Deprecated option, silently ignore it for compatibility with GCC <= 10. */ |
694 | #define OPTION_MOVE_DATA 'd' | |
695 | ||
2213f746 NC |
696 | enum |
697 | { | |
698 | OPTION_SILICON_ERRATA = OPTION_MD_BASE, | |
699 | OPTION_SILICON_ERRATA_WARN, | |
85e53f62 | 700 | }; |
2213f746 NC |
701 | |
702 | static unsigned int silicon_errata_fix = 0; | |
703 | static unsigned int silicon_errata_warn = 0; | |
704 | #define SILICON_ERRATA_CPU4 (1 << 0) | |
705 | #define SILICON_ERRATA_CPU8 (1 << 1) | |
706 | #define SILICON_ERRATA_CPU11 (1 << 2) | |
707 | #define SILICON_ERRATA_CPU12 (1 << 3) | |
708 | #define SILICON_ERRATA_CPU13 (1 << 4) | |
709 | #define SILICON_ERRATA_CPU19 (1 << 5) | |
2213f746 | 710 | |
2469cfa2 | 711 | static void |
638d3803 | 712 | msp430_set_arch (int option) |
2469cfa2 | 713 | { |
e1fa0163 | 714 | char str[32]; /* 32 for good measure. */ |
2469cfa2 NC |
715 | |
716 | input_line_pointer = extract_word (input_line_pointer, str, 32); | |
717 | ||
638d3803 NC |
718 | md_parse_option (option, str); |
719 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, | |
720 | target_is_430x () ? bfd_mach_msp430x : bfd_mach_msp11); | |
2469cfa2 NC |
721 | } |
722 | ||
ede77e69 NC |
723 | /* This is a copy of the same data structure found in gcc/config/msp430/msp430.c |
724 | Keep these two structures in sync. | |
4eabf344 JS |
725 | The data in this structure has been extracted from version 1.194 of the |
726 | devices.csv file released by TI in September 2016. */ | |
ede77e69 NC |
727 | |
728 | struct msp430_mcu_data | |
65d7bab5 | 729 | { |
ede77e69 NC |
730 | const char * name; |
731 | unsigned int revision; /* 0=> MSP430, 1=>MSP430X, 2=> MSP430Xv2. */ | |
732 | unsigned int hwmpy; /* 0=>none, 1=>16-bit, 2=>16-bit w/sign extend, 4=>32-bit, 8=> 32-bit (5xx). */ | |
733 | } | |
734 | msp430_mcu_data [] = | |
735 | { | |
736 | { "cc430f5123",2,8 }, | |
737 | { "cc430f5125",2,8 }, | |
738 | { "cc430f5133",2,8 }, | |
739 | { "cc430f5135",2,8 }, | |
740 | { "cc430f5137",2,8 }, | |
741 | { "cc430f5143",2,8 }, | |
742 | { "cc430f5145",2,8 }, | |
743 | { "cc430f5147",2,8 }, | |
744 | { "cc430f6125",2,8 }, | |
745 | { "cc430f6126",2,8 }, | |
746 | { "cc430f6127",2,8 }, | |
747 | { "cc430f6135",2,8 }, | |
748 | { "cc430f6137",2,8 }, | |
749 | { "cc430f6143",2,8 }, | |
750 | { "cc430f6145",2,8 }, | |
751 | { "cc430f6147",2,8 }, | |
752 | { "msp430afe221",0,2 }, | |
753 | { "msp430afe222",0,2 }, | |
754 | { "msp430afe223",0,2 }, | |
755 | { "msp430afe231",0,2 }, | |
756 | { "msp430afe232",0,2 }, | |
757 | { "msp430afe233",0,2 }, | |
758 | { "msp430afe251",0,2 }, | |
759 | { "msp430afe252",0,2 }, | |
760 | { "msp430afe253",0,2 }, | |
761 | { "msp430bt5190",2,8 }, | |
762 | { "msp430c091",0,0 }, | |
763 | { "msp430c092",0,0 }, | |
764 | { "msp430c111",0,0 }, | |
765 | { "msp430c1111",0,0 }, | |
766 | { "msp430c112",0,0 }, | |
767 | { "msp430c1121",0,0 }, | |
768 | { "msp430c1331",0,0 }, | |
769 | { "msp430c1351",0,0 }, | |
770 | { "msp430c311s",0,0 }, | |
771 | { "msp430c312",0,0 }, | |
772 | { "msp430c313",0,0 }, | |
773 | { "msp430c314",0,0 }, | |
774 | { "msp430c315",0,0 }, | |
775 | { "msp430c323",0,0 }, | |
776 | { "msp430c325",0,0 }, | |
777 | { "msp430c336",0,1 }, | |
778 | { "msp430c337",0,1 }, | |
779 | { "msp430c412",0,0 }, | |
780 | { "msp430c413",0,0 }, | |
781 | { "msp430cg4616",1,1 }, | |
782 | { "msp430cg4617",1,1 }, | |
783 | { "msp430cg4618",1,1 }, | |
784 | { "msp430cg4619",1,1 }, | |
785 | { "msp430e112",0,0 }, | |
786 | { "msp430e313",0,0 }, | |
787 | { "msp430e315",0,0 }, | |
788 | { "msp430e325",0,0 }, | |
789 | { "msp430e337",0,1 }, | |
790 | { "msp430f110",0,0 }, | |
791 | { "msp430f1101",0,0 }, | |
792 | { "msp430f1101a",0,0 }, | |
793 | { "msp430f1111",0,0 }, | |
794 | { "msp430f1111a",0,0 }, | |
795 | { "msp430f112",0,0 }, | |
796 | { "msp430f1121",0,0 }, | |
797 | { "msp430f1121a",0,0 }, | |
798 | { "msp430f1122",0,0 }, | |
799 | { "msp430f1132",0,0 }, | |
800 | { "msp430f122",0,0 }, | |
801 | { "msp430f1222",0,0 }, | |
802 | { "msp430f123",0,0 }, | |
803 | { "msp430f1232",0,0 }, | |
804 | { "msp430f133",0,0 }, | |
805 | { "msp430f135",0,0 }, | |
806 | { "msp430f147",0,1 }, | |
807 | { "msp430f1471",0,1 }, | |
808 | { "msp430f148",0,1 }, | |
809 | { "msp430f1481",0,1 }, | |
810 | { "msp430f149",0,1 }, | |
811 | { "msp430f1491",0,1 }, | |
812 | { "msp430f155",0,0 }, | |
813 | { "msp430f156",0,0 }, | |
814 | { "msp430f157",0,0 }, | |
815 | { "msp430f1610",0,1 }, | |
816 | { "msp430f1611",0,1 }, | |
817 | { "msp430f1612",0,1 }, | |
818 | { "msp430f167",0,1 }, | |
819 | { "msp430f168",0,1 }, | |
820 | { "msp430f169",0,1 }, | |
821 | { "msp430f2001",0,0 }, | |
822 | { "msp430f2002",0,0 }, | |
823 | { "msp430f2003",0,0 }, | |
824 | { "msp430f2011",0,0 }, | |
825 | { "msp430f2012",0,0 }, | |
826 | { "msp430f2013",0,0 }, | |
827 | { "msp430f2101",0,0 }, | |
828 | { "msp430f2111",0,0 }, | |
829 | { "msp430f2112",0,0 }, | |
830 | { "msp430f2121",0,0 }, | |
831 | { "msp430f2122",0,0 }, | |
832 | { "msp430f2131",0,0 }, | |
833 | { "msp430f2132",0,0 }, | |
834 | { "msp430f2232",0,0 }, | |
835 | { "msp430f2234",0,0 }, | |
836 | { "msp430f2252",0,0 }, | |
837 | { "msp430f2254",0,0 }, | |
838 | { "msp430f2272",0,0 }, | |
839 | { "msp430f2274",0,0 }, | |
840 | { "msp430f233",0,2 }, | |
841 | { "msp430f2330",0,2 }, | |
842 | { "msp430f235",0,2 }, | |
843 | { "msp430f2350",0,2 }, | |
844 | { "msp430f2370",0,2 }, | |
845 | { "msp430f2410",0,2 }, | |
846 | { "msp430f2416",1,2 }, | |
847 | { "msp430f2417",1,2 }, | |
848 | { "msp430f2418",1,2 }, | |
849 | { "msp430f2419",1,2 }, | |
850 | { "msp430f247",0,2 }, | |
851 | { "msp430f2471",0,2 }, | |
852 | { "msp430f248",0,2 }, | |
853 | { "msp430f2481",0,2 }, | |
854 | { "msp430f249",0,2 }, | |
855 | { "msp430f2491",0,2 }, | |
856 | { "msp430f2616",1,2 }, | |
857 | { "msp430f2617",1,2 }, | |
858 | { "msp430f2618",1,2 }, | |
859 | { "msp430f2619",1,2 }, | |
860 | { "msp430f412",0,0 }, | |
861 | { "msp430f413",0,0 }, | |
862 | { "msp430f4132",0,0 }, | |
863 | { "msp430f415",0,0 }, | |
864 | { "msp430f4152",0,0 }, | |
865 | { "msp430f417",0,0 }, | |
866 | { "msp430f423",0,1 }, | |
867 | { "msp430f423a",0,1 }, | |
868 | { "msp430f425",0,1 }, | |
869 | { "msp430f4250",0,0 }, | |
870 | { "msp430f425a",0,1 }, | |
871 | { "msp430f4260",0,0 }, | |
872 | { "msp430f427",0,1 }, | |
873 | { "msp430f4270",0,0 }, | |
874 | { "msp430f427a",0,1 }, | |
875 | { "msp430f435",0,0 }, | |
876 | { "msp430f4351",0,0 }, | |
877 | { "msp430f436",0,0 }, | |
878 | { "msp430f4361",0,0 }, | |
879 | { "msp430f437",0,0 }, | |
880 | { "msp430f4371",0,0 }, | |
881 | { "msp430f438",0,0 }, | |
882 | { "msp430f439",0,0 }, | |
883 | { "msp430f447",0,1 }, | |
884 | { "msp430f448",0,1 }, | |
885 | { "msp430f4481",0,1 }, | |
886 | { "msp430f449",0,1 }, | |
887 | { "msp430f4491",0,1 }, | |
888 | { "msp430f4616",1,1 }, | |
889 | { "msp430f46161",1,1 }, | |
890 | { "msp430f4617",1,1 }, | |
891 | { "msp430f46171",1,1 }, | |
892 | { "msp430f4618",1,1 }, | |
893 | { "msp430f46181",1,1 }, | |
894 | { "msp430f4619",1,1 }, | |
895 | { "msp430f46191",1,1 }, | |
896 | { "msp430f47126",1,4 }, | |
897 | { "msp430f47127",1,4 }, | |
898 | { "msp430f47163",1,4 }, | |
899 | { "msp430f47166",1,4 }, | |
900 | { "msp430f47167",1,4 }, | |
901 | { "msp430f47173",1,4 }, | |
902 | { "msp430f47176",1,4 }, | |
903 | { "msp430f47177",1,4 }, | |
904 | { "msp430f47183",1,4 }, | |
905 | { "msp430f47186",1,4 }, | |
906 | { "msp430f47187",1,4 }, | |
907 | { "msp430f47193",1,4 }, | |
908 | { "msp430f47196",1,4 }, | |
909 | { "msp430f47197",1,4 }, | |
910 | { "msp430f477",0,0 }, | |
911 | { "msp430f478",0,0 }, | |
912 | { "msp430f4783",0,4 }, | |
913 | { "msp430f4784",0,4 }, | |
914 | { "msp430f479",0,0 }, | |
915 | { "msp430f4793",0,4 }, | |
916 | { "msp430f4794",0,4 }, | |
917 | { "msp430f5131",2,8 }, | |
918 | { "msp430f5132",2,8 }, | |
919 | { "msp430f5151",2,8 }, | |
920 | { "msp430f5152",2,8 }, | |
921 | { "msp430f5171",2,8 }, | |
922 | { "msp430f5172",2,8 }, | |
923 | { "msp430f5212",2,8 }, | |
924 | { "msp430f5213",2,8 }, | |
925 | { "msp430f5214",2,8 }, | |
926 | { "msp430f5217",2,8 }, | |
927 | { "msp430f5218",2,8 }, | |
928 | { "msp430f5219",2,8 }, | |
929 | { "msp430f5222",2,8 }, | |
930 | { "msp430f5223",2,8 }, | |
931 | { "msp430f5224",2,8 }, | |
932 | { "msp430f5227",2,8 }, | |
933 | { "msp430f5228",2,8 }, | |
934 | { "msp430f5229",2,8 }, | |
935 | { "msp430f5232",2,8 }, | |
936 | { "msp430f5234",2,8 }, | |
937 | { "msp430f5237",2,8 }, | |
938 | { "msp430f5239",2,8 }, | |
939 | { "msp430f5242",2,8 }, | |
940 | { "msp430f5244",2,8 }, | |
941 | { "msp430f5247",2,8 }, | |
942 | { "msp430f5249",2,8 }, | |
943 | { "msp430f5252",2,8 }, | |
944 | { "msp430f5253",2,8 }, | |
945 | { "msp430f5254",2,8 }, | |
946 | { "msp430f5255",2,8 }, | |
947 | { "msp430f5256",2,8 }, | |
948 | { "msp430f5257",2,8 }, | |
949 | { "msp430f5258",2,8 }, | |
950 | { "msp430f5259",2,8 }, | |
951 | { "msp430f5304",2,8 }, | |
952 | { "msp430f5308",2,8 }, | |
953 | { "msp430f5309",2,8 }, | |
954 | { "msp430f5310",2,8 }, | |
955 | { "msp430f5324",2,8 }, | |
956 | { "msp430f5325",2,8 }, | |
957 | { "msp430f5326",2,8 }, | |
958 | { "msp430f5327",2,8 }, | |
959 | { "msp430f5328",2,8 }, | |
960 | { "msp430f5329",2,8 }, | |
961 | { "msp430f5333",2,8 }, | |
962 | { "msp430f5335",2,8 }, | |
963 | { "msp430f5336",2,8 }, | |
964 | { "msp430f5338",2,8 }, | |
965 | { "msp430f5340",2,8 }, | |
966 | { "msp430f5341",2,8 }, | |
967 | { "msp430f5342",2,8 }, | |
968 | { "msp430f5358",2,8 }, | |
969 | { "msp430f5359",2,8 }, | |
970 | { "msp430f5418",2,8 }, | |
971 | { "msp430f5418a",2,8 }, | |
972 | { "msp430f5419",2,8 }, | |
973 | { "msp430f5419a",2,8 }, | |
974 | { "msp430f5435",2,8 }, | |
975 | { "msp430f5435a",2,8 }, | |
976 | { "msp430f5436",2,8 }, | |
977 | { "msp430f5436a",2,8 }, | |
978 | { "msp430f5437",2,8 }, | |
979 | { "msp430f5437a",2,8 }, | |
980 | { "msp430f5438",2,8 }, | |
981 | { "msp430f5438a",2,8 }, | |
982 | { "msp430f5500",2,8 }, | |
983 | { "msp430f5501",2,8 }, | |
984 | { "msp430f5502",2,8 }, | |
985 | { "msp430f5503",2,8 }, | |
986 | { "msp430f5504",2,8 }, | |
987 | { "msp430f5505",2,8 }, | |
988 | { "msp430f5506",2,8 }, | |
989 | { "msp430f5507",2,8 }, | |
990 | { "msp430f5508",2,8 }, | |
991 | { "msp430f5509",2,8 }, | |
992 | { "msp430f5510",2,8 }, | |
993 | { "msp430f5513",2,8 }, | |
994 | { "msp430f5514",2,8 }, | |
995 | { "msp430f5515",2,8 }, | |
996 | { "msp430f5517",2,8 }, | |
997 | { "msp430f5519",2,8 }, | |
998 | { "msp430f5521",2,8 }, | |
999 | { "msp430f5522",2,8 }, | |
1000 | { "msp430f5524",2,8 }, | |
1001 | { "msp430f5525",2,8 }, | |
1002 | { "msp430f5526",2,8 }, | |
1003 | { "msp430f5527",2,8 }, | |
1004 | { "msp430f5528",2,8 }, | |
1005 | { "msp430f5529",2,8 }, | |
1006 | { "msp430f5630",2,8 }, | |
1007 | { "msp430f5631",2,8 }, | |
1008 | { "msp430f5632",2,8 }, | |
1009 | { "msp430f5633",2,8 }, | |
1010 | { "msp430f5634",2,8 }, | |
1011 | { "msp430f5635",2,8 }, | |
1012 | { "msp430f5636",2,8 }, | |
1013 | { "msp430f5637",2,8 }, | |
1014 | { "msp430f5638",2,8 }, | |
1015 | { "msp430f5658",2,8 }, | |
1016 | { "msp430f5659",2,8 }, | |
1017 | { "msp430f5xx_6xxgeneric",2,8 }, | |
1018 | { "msp430f6433",2,8 }, | |
1019 | { "msp430f6435",2,8 }, | |
1020 | { "msp430f6436",2,8 }, | |
1021 | { "msp430f6438",2,8 }, | |
1022 | { "msp430f6458",2,8 }, | |
1023 | { "msp430f6459",2,8 }, | |
1024 | { "msp430f6630",2,8 }, | |
1025 | { "msp430f6631",2,8 }, | |
1026 | { "msp430f6632",2,8 }, | |
1027 | { "msp430f6633",2,8 }, | |
1028 | { "msp430f6634",2,8 }, | |
1029 | { "msp430f6635",2,8 }, | |
1030 | { "msp430f6636",2,8 }, | |
1031 | { "msp430f6637",2,8 }, | |
1032 | { "msp430f6638",2,8 }, | |
1033 | { "msp430f6658",2,8 }, | |
1034 | { "msp430f6659",2,8 }, | |
1035 | { "msp430f6720",2,8 }, | |
1036 | { "msp430f6720a",2,8 }, | |
1037 | { "msp430f6721",2,8 }, | |
1038 | { "msp430f6721a",2,8 }, | |
1039 | { "msp430f6723",2,8 }, | |
1040 | { "msp430f6723a",2,8 }, | |
1041 | { "msp430f6724",2,8 }, | |
1042 | { "msp430f6724a",2,8 }, | |
1043 | { "msp430f6725",2,8 }, | |
1044 | { "msp430f6725a",2,8 }, | |
1045 | { "msp430f6726",2,8 }, | |
1046 | { "msp430f6726a",2,8 }, | |
1047 | { "msp430f6730",2,8 }, | |
1048 | { "msp430f6730a",2,8 }, | |
1049 | { "msp430f6731",2,8 }, | |
1050 | { "msp430f6731a",2,8 }, | |
1051 | { "msp430f6733",2,8 }, | |
1052 | { "msp430f6733a",2,8 }, | |
1053 | { "msp430f6734",2,8 }, | |
1054 | { "msp430f6734a",2,8 }, | |
1055 | { "msp430f6735",2,8 }, | |
1056 | { "msp430f6735a",2,8 }, | |
1057 | { "msp430f6736",2,8 }, | |
1058 | { "msp430f6736a",2,8 }, | |
1059 | { "msp430f6745",2,8 }, | |
1060 | { "msp430f67451",2,8 }, | |
1061 | { "msp430f67451a",2,8 }, | |
1062 | { "msp430f6745a",2,8 }, | |
1063 | { "msp430f6746",2,8 }, | |
1064 | { "msp430f67461",2,8 }, | |
1065 | { "msp430f67461a",2,8 }, | |
1066 | { "msp430f6746a",2,8 }, | |
1067 | { "msp430f6747",2,8 }, | |
1068 | { "msp430f67471",2,8 }, | |
1069 | { "msp430f67471a",2,8 }, | |
1070 | { "msp430f6747a",2,8 }, | |
1071 | { "msp430f6748",2,8 }, | |
1072 | { "msp430f67481",2,8 }, | |
1073 | { "msp430f67481a",2,8 }, | |
1074 | { "msp430f6748a",2,8 }, | |
1075 | { "msp430f6749",2,8 }, | |
1076 | { "msp430f67491",2,8 }, | |
1077 | { "msp430f67491a",2,8 }, | |
1078 | { "msp430f6749a",2,8 }, | |
1079 | { "msp430f67621",2,8 }, | |
1080 | { "msp430f67621a",2,8 }, | |
1081 | { "msp430f67641",2,8 }, | |
1082 | { "msp430f67641a",2,8 }, | |
1083 | { "msp430f6765",2,8 }, | |
1084 | { "msp430f67651",2,8 }, | |
1085 | { "msp430f67651a",2,8 }, | |
1086 | { "msp430f6765a",2,8 }, | |
1087 | { "msp430f6766",2,8 }, | |
1088 | { "msp430f67661",2,8 }, | |
1089 | { "msp430f67661a",2,8 }, | |
1090 | { "msp430f6766a",2,8 }, | |
1091 | { "msp430f6767",2,8 }, | |
1092 | { "msp430f67671",2,8 }, | |
1093 | { "msp430f67671a",2,8 }, | |
1094 | { "msp430f6767a",2,8 }, | |
1095 | { "msp430f6768",2,8 }, | |
1096 | { "msp430f67681",2,8 }, | |
1097 | { "msp430f67681a",2,8 }, | |
1098 | { "msp430f6768a",2,8 }, | |
1099 | { "msp430f6769",2,8 }, | |
1100 | { "msp430f67691",2,8 }, | |
1101 | { "msp430f67691a",2,8 }, | |
1102 | { "msp430f6769a",2,8 }, | |
1103 | { "msp430f6775",2,8 }, | |
1104 | { "msp430f67751",2,8 }, | |
1105 | { "msp430f67751a",2,8 }, | |
1106 | { "msp430f6775a",2,8 }, | |
1107 | { "msp430f6776",2,8 }, | |
1108 | { "msp430f67761",2,8 }, | |
1109 | { "msp430f67761a",2,8 }, | |
1110 | { "msp430f6776a",2,8 }, | |
1111 | { "msp430f6777",2,8 }, | |
1112 | { "msp430f67771",2,8 }, | |
1113 | { "msp430f67771a",2,8 }, | |
1114 | { "msp430f6777a",2,8 }, | |
1115 | { "msp430f6778",2,8 }, | |
1116 | { "msp430f67781",2,8 }, | |
1117 | { "msp430f67781a",2,8 }, | |
1118 | { "msp430f6778a",2,8 }, | |
1119 | { "msp430f6779",2,8 }, | |
1120 | { "msp430f67791",2,8 }, | |
1121 | { "msp430f67791a",2,8 }, | |
1122 | { "msp430f6779a",2,8 }, | |
1123 | { "msp430fe423",0,0 }, | |
1124 | { "msp430fe4232",0,0 }, | |
1125 | { "msp430fe423a",0,0 }, | |
1126 | { "msp430fe4242",0,0 }, | |
1127 | { "msp430fe425",0,0 }, | |
1128 | { "msp430fe4252",0,0 }, | |
1129 | { "msp430fe425a",0,0 }, | |
1130 | { "msp430fe427",0,0 }, | |
1131 | { "msp430fe4272",0,0 }, | |
1132 | { "msp430fe427a",0,0 }, | |
1133 | { "msp430fg4250",0,0 }, | |
1134 | { "msp430fg4260",0,0 }, | |
1135 | { "msp430fg4270",0,0 }, | |
1136 | { "msp430fg437",0,0 }, | |
1137 | { "msp430fg438",0,0 }, | |
1138 | { "msp430fg439",0,0 }, | |
1139 | { "msp430fg4616",1,1 }, | |
1140 | { "msp430fg4617",1,1 }, | |
1141 | { "msp430fg4618",1,1 }, | |
1142 | { "msp430fg4619",1,1 }, | |
1143 | { "msp430fg477",0,0 }, | |
1144 | { "msp430fg478",0,0 }, | |
1145 | { "msp430fg479",0,0 }, | |
1146 | { "msp430fg6425",2,8 }, | |
1147 | { "msp430fg6426",2,8 }, | |
1148 | { "msp430fg6625",2,8 }, | |
1149 | { "msp430fg6626",2,8 }, | |
1150 | { "msp430fr2032",2,0 }, | |
1151 | { "msp430fr2033",2,0 }, | |
4eabf344 JS |
1152 | { "msp430fr2110",2,0 }, |
1153 | { "msp430fr2111",2,0 }, | |
b27c40ec NC |
1154 | { "msp430fr2310",2,0 }, |
1155 | { "msp430fr2311",2,0 }, | |
ede77e69 | 1156 | { "msp430fr2433",2,8 }, |
b27c40ec NC |
1157 | { "msp430fr2532",2,8 }, |
1158 | { "msp430fr2533",2,8 }, | |
1159 | { "msp430fr2632",2,8 }, | |
1160 | { "msp430fr2633",2,8 }, | |
ede77e69 NC |
1161 | { "msp430fr2xx_4xxgeneric",2,8 }, |
1162 | { "msp430fr4131",2,0 }, | |
1163 | { "msp430fr4132",2,0 }, | |
1164 | { "msp430fr4133",2,0 }, | |
1165 | { "msp430fr5720",2,8 }, | |
1166 | { "msp430fr5721",2,8 }, | |
1167 | { "msp430fr5722",2,8 }, | |
1168 | { "msp430fr5723",2,8 }, | |
1169 | { "msp430fr5724",2,8 }, | |
1170 | { "msp430fr5725",2,8 }, | |
1171 | { "msp430fr5726",2,8 }, | |
1172 | { "msp430fr5727",2,8 }, | |
1173 | { "msp430fr5728",2,8 }, | |
1174 | { "msp430fr5729",2,8 }, | |
1175 | { "msp430fr5730",2,8 }, | |
1176 | { "msp430fr5731",2,8 }, | |
1177 | { "msp430fr5732",2,8 }, | |
1178 | { "msp430fr5733",2,8 }, | |
1179 | { "msp430fr5734",2,8 }, | |
1180 | { "msp430fr5735",2,8 }, | |
1181 | { "msp430fr5736",2,8 }, | |
1182 | { "msp430fr5737",2,8 }, | |
1183 | { "msp430fr5738",2,8 }, | |
1184 | { "msp430fr5739",2,8 }, | |
1185 | { "msp430fr57xxgeneric",2,8 }, | |
1186 | { "msp430fr5847",2,8 }, | |
1187 | { "msp430fr58471",2,8 }, | |
1188 | { "msp430fr5848",2,8 }, | |
1189 | { "msp430fr5849",2,8 }, | |
1190 | { "msp430fr5857",2,8 }, | |
1191 | { "msp430fr5858",2,8 }, | |
1192 | { "msp430fr5859",2,8 }, | |
1193 | { "msp430fr5867",2,8 }, | |
1194 | { "msp430fr58671",2,8 }, | |
1195 | { "msp430fr5868",2,8 }, | |
1196 | { "msp430fr5869",2,8 }, | |
1197 | { "msp430fr5870",2,8 }, | |
1198 | { "msp430fr5872",2,8 }, | |
1199 | { "msp430fr58721",2,8 }, | |
1200 | { "msp430fr5887",2,8 }, | |
1201 | { "msp430fr5888",2,8 }, | |
1202 | { "msp430fr5889",2,8 }, | |
1203 | { "msp430fr58891",2,8 }, | |
1204 | { "msp430fr5922",2,8 }, | |
1205 | { "msp430fr59221",2,8 }, | |
1206 | { "msp430fr5947",2,8 }, | |
1207 | { "msp430fr59471",2,8 }, | |
1208 | { "msp430fr5948",2,8 }, | |
1209 | { "msp430fr5949",2,8 }, | |
1210 | { "msp430fr5957",2,8 }, | |
1211 | { "msp430fr5958",2,8 }, | |
1212 | { "msp430fr5959",2,8 }, | |
b27c40ec NC |
1213 | { "msp430fr5962",2,8 }, |
1214 | { "msp430fr5964",2,8 }, | |
ede77e69 NC |
1215 | { "msp430fr5967",2,8 }, |
1216 | { "msp430fr5968",2,8 }, | |
1217 | { "msp430fr5969",2,8 }, | |
1218 | { "msp430fr59691",2,8 }, | |
1219 | { "msp430fr5970",2,8 }, | |
1220 | { "msp430fr5972",2,8 }, | |
1221 | { "msp430fr59721",2,8 }, | |
1222 | { "msp430fr5986",2,8 }, | |
1223 | { "msp430fr5987",2,8 }, | |
1224 | { "msp430fr5988",2,8 }, | |
1225 | { "msp430fr5989",2,8 }, | |
1226 | { "msp430fr59891",2,8 }, | |
b27c40ec NC |
1227 | { "msp430fr5992",2,8 }, |
1228 | { "msp430fr5994",2,8 }, | |
4eabf344 | 1229 | { "msp430fr59941",2,8 }, |
ede77e69 NC |
1230 | { "msp430fr5xx_6xxgeneric",2,8 }, |
1231 | { "msp430fr6820",2,8 }, | |
1232 | { "msp430fr6822",2,8 }, | |
1233 | { "msp430fr68221",2,8 }, | |
1234 | { "msp430fr6870",2,8 }, | |
1235 | { "msp430fr6872",2,8 }, | |
1236 | { "msp430fr68721",2,8 }, | |
1237 | { "msp430fr6877",2,8 }, | |
1238 | { "msp430fr6879",2,8 }, | |
1239 | { "msp430fr68791",2,8 }, | |
1240 | { "msp430fr6887",2,8 }, | |
1241 | { "msp430fr6888",2,8 }, | |
1242 | { "msp430fr6889",2,8 }, | |
1243 | { "msp430fr68891",2,8 }, | |
1244 | { "msp430fr6920",2,8 }, | |
1245 | { "msp430fr6922",2,8 }, | |
1246 | { "msp430fr69221",2,8 }, | |
1247 | { "msp430fr6927",2,8 }, | |
1248 | { "msp430fr69271",2,8 }, | |
1249 | { "msp430fr6928",2,8 }, | |
1250 | { "msp430fr6970",2,8 }, | |
1251 | { "msp430fr6972",2,8 }, | |
1252 | { "msp430fr69721",2,8 }, | |
1253 | { "msp430fr6977",2,8 }, | |
1254 | { "msp430fr6979",2,8 }, | |
1255 | { "msp430fr69791",2,8 }, | |
1256 | { "msp430fr6987",2,8 }, | |
1257 | { "msp430fr6988",2,8 }, | |
1258 | { "msp430fr6989",2,8 }, | |
1259 | { "msp430fr69891",2,8 }, | |
1260 | { "msp430fw423",0,0 }, | |
1261 | { "msp430fw425",0,0 }, | |
1262 | { "msp430fw427",0,0 }, | |
1263 | { "msp430fw428",0,0 }, | |
1264 | { "msp430fw429",0,0 }, | |
1265 | { "msp430g2001",0,0 }, | |
1266 | { "msp430g2101",0,0 }, | |
1267 | { "msp430g2102",0,0 }, | |
1268 | { "msp430g2111",0,0 }, | |
1269 | { "msp430g2112",0,0 }, | |
1270 | { "msp430g2113",0,0 }, | |
1271 | { "msp430g2121",0,0 }, | |
1272 | { "msp430g2131",0,0 }, | |
1273 | { "msp430g2132",0,0 }, | |
1274 | { "msp430g2152",0,0 }, | |
1275 | { "msp430g2153",0,0 }, | |
1276 | { "msp430g2201",0,0 }, | |
1277 | { "msp430g2202",0,0 }, | |
1278 | { "msp430g2203",0,0 }, | |
1279 | { "msp430g2210",0,0 }, | |
1280 | { "msp430g2211",0,0 }, | |
1281 | { "msp430g2212",0,0 }, | |
1282 | { "msp430g2213",0,0 }, | |
1283 | { "msp430g2221",0,0 }, | |
1284 | { "msp430g2230",0,0 }, | |
1285 | { "msp430g2231",0,0 }, | |
1286 | { "msp430g2232",0,0 }, | |
1287 | { "msp430g2233",0,0 }, | |
1288 | { "msp430g2252",0,0 }, | |
1289 | { "msp430g2253",0,0 }, | |
1290 | { "msp430g2302",0,0 }, | |
1291 | { "msp430g2303",0,0 }, | |
1292 | { "msp430g2312",0,0 }, | |
1293 | { "msp430g2313",0,0 }, | |
1294 | { "msp430g2332",0,0 }, | |
1295 | { "msp430g2333",0,0 }, | |
1296 | { "msp430g2352",0,0 }, | |
1297 | { "msp430g2353",0,0 }, | |
1298 | { "msp430g2402",0,0 }, | |
1299 | { "msp430g2403",0,0 }, | |
1300 | { "msp430g2412",0,0 }, | |
1301 | { "msp430g2413",0,0 }, | |
1302 | { "msp430g2432",0,0 }, | |
1303 | { "msp430g2433",0,0 }, | |
1304 | { "msp430g2444",0,0 }, | |
1305 | { "msp430g2452",0,0 }, | |
1306 | { "msp430g2453",0,0 }, | |
1307 | { "msp430g2513",0,0 }, | |
1308 | { "msp430g2533",0,0 }, | |
1309 | { "msp430g2544",0,0 }, | |
1310 | { "msp430g2553",0,0 }, | |
1311 | { "msp430g2744",0,0 }, | |
1312 | { "msp430g2755",0,0 }, | |
1313 | { "msp430g2855",0,0 }, | |
1314 | { "msp430g2955",0,0 }, | |
1315 | { "msp430i2020",0,2 }, | |
1316 | { "msp430i2021",0,2 }, | |
1317 | { "msp430i2030",0,2 }, | |
1318 | { "msp430i2031",0,2 }, | |
1319 | { "msp430i2040",0,2 }, | |
1320 | { "msp430i2041",0,2 }, | |
1321 | { "msp430i2xxgeneric",0,2 }, | |
1322 | { "msp430l092",0,0 }, | |
1323 | { "msp430p112",0,0 }, | |
1324 | { "msp430p313",0,0 }, | |
1325 | { "msp430p315",0,0 }, | |
1326 | { "msp430p315s",0,0 }, | |
1327 | { "msp430p325",0,0 }, | |
1328 | { "msp430p337",0,1 }, | |
1329 | { "msp430sl5438a",2,8 }, | |
1330 | { "msp430tch5e",0,0 }, | |
1331 | { "msp430xgeneric",2,8 }, | |
1332 | { "rf430f5144",2,8 }, | |
1333 | { "rf430f5155",2,8 }, | |
1334 | { "rf430f5175",2,8 }, | |
1335 | { "rf430frl152h",0,0 }, | |
1336 | { "rf430frl152h_rom",0,0 }, | |
1337 | { "rf430frl153h",0,0 }, | |
1338 | { "rf430frl153h_rom",0,0 }, | |
1339 | { "rf430frl154h",0,0 }, | |
1340 | { "rf430frl154h_rom",0,0 } | |
1341 | }; | |
65d7bab5 | 1342 | |
2469cfa2 | 1343 | int |
17b9d67d | 1344 | md_parse_option (int c, const char * arg) |
2469cfa2 | 1345 | { |
2469cfa2 NC |
1346 | switch (c) |
1347 | { | |
2213f746 NC |
1348 | case OPTION_SILICON_ERRATA: |
1349 | case OPTION_SILICON_ERRATA_WARN: | |
1350 | { | |
1351 | signed int i; | |
1352 | const struct | |
1353 | { | |
e0471c16 | 1354 | const char * name; |
2213f746 NC |
1355 | unsigned int length; |
1356 | unsigned int bitfield; | |
1357 | } erratas[] = | |
1358 | { | |
1359 | { STRING_COMMA_LEN ("cpu4"), SILICON_ERRATA_CPU4 }, | |
1360 | { STRING_COMMA_LEN ("cpu8"), SILICON_ERRATA_CPU8 }, | |
1361 | { STRING_COMMA_LEN ("cpu11"), SILICON_ERRATA_CPU11 }, | |
1362 | { STRING_COMMA_LEN ("cpu12"), SILICON_ERRATA_CPU12 }, | |
1363 | { STRING_COMMA_LEN ("cpu13"), SILICON_ERRATA_CPU13 }, | |
1364 | { STRING_COMMA_LEN ("cpu19"), SILICON_ERRATA_CPU19 }, | |
2213f746 NC |
1365 | }; |
1366 | ||
1367 | do | |
1368 | { | |
1369 | for (i = ARRAY_SIZE (erratas); i--;) | |
1370 | if (strncasecmp (arg, erratas[i].name, erratas[i].length) == 0) | |
1371 | { | |
1372 | if (c == OPTION_SILICON_ERRATA) | |
1373 | silicon_errata_fix |= erratas[i].bitfield; | |
1374 | else | |
1375 | silicon_errata_warn |= erratas[i].bitfield; | |
1376 | arg += erratas[i].length; | |
1377 | break; | |
1378 | } | |
1379 | if (i < 0) | |
1380 | { | |
1381 | as_warn (_("Unrecognised CPU errata name starting here: %s"), arg); | |
1382 | break; | |
1383 | } | |
1384 | if (*arg == 0) | |
1385 | break; | |
1386 | if (*arg != ',') | |
1387 | as_warn (_("Expecting comma after CPU errata name, not: %s"), arg); | |
1388 | else | |
1389 | arg ++; | |
1390 | } | |
1391 | while (*arg != 0); | |
1392 | } | |
1393 | return 1; | |
1394 | ||
2469cfa2 | 1395 | case OPTION_MMCU: |
638d3803 NC |
1396 | if (arg == NULL) |
1397 | as_fatal (_("MCU option requires a name\n")); | |
1398 | ||
65d7bab5 NC |
1399 | if (strcasecmp ("msp430", arg) == 0) |
1400 | selected_isa = MSP_ISA_430; | |
1401 | else if (strcasecmp ("msp430xv2", arg) == 0) | |
1402 | selected_isa = MSP_ISA_430Xv2; | |
1403 | else if (strcasecmp ("msp430x", arg) == 0) | |
1404 | selected_isa = MSP_ISA_430X; | |
1405 | else | |
2469cfa2 | 1406 | { |
65d7bab5 NC |
1407 | int i; |
1408 | ||
ede77e69 NC |
1409 | for (i = ARRAY_SIZE (msp430_mcu_data); i--;) |
1410 | if (strcasecmp (msp430_mcu_data[i].name, arg) == 0) | |
65d7bab5 | 1411 | { |
ede77e69 NC |
1412 | switch (msp430_mcu_data[i].revision) |
1413 | { | |
1414 | case 0: selected_isa = MSP_ISA_430; break; | |
1415 | case 1: selected_isa = MSP_ISA_430X; break; | |
1416 | case 2: selected_isa = MSP_ISA_430Xv2; break; | |
1417 | } | |
65d7bab5 NC |
1418 | break; |
1419 | } | |
2469cfa2 | 1420 | } |
8e75a78f | 1421 | /* It is not an error if we do not match the MCU name. */ |
2469cfa2 | 1422 | return 1; |
65d7bab5 | 1423 | |
638d3803 | 1424 | case OPTION_MCPU: |
8e75a78f NC |
1425 | if (strcmp (arg, "430") == 0 |
1426 | || strcasecmp (arg, "msp430") == 0) | |
65d7bab5 | 1427 | selected_isa = MSP_ISA_430; |
8e75a78f NC |
1428 | else if (strcasecmp (arg, "430x") == 0 |
1429 | || strcasecmp (arg, "msp430x") == 0) | |
65d7bab5 | 1430 | selected_isa = MSP_ISA_430X; |
8e75a78f NC |
1431 | else if (strcasecmp (arg, "430xv2") == 0 |
1432 | || strcasecmp (arg, "msp430xv2") == 0) | |
65d7bab5 | 1433 | selected_isa = MSP_ISA_430Xv2; |
638d3803 NC |
1434 | else |
1435 | as_fatal (_("unrecognised argument to -mcpu option '%s'"), arg); | |
638d3803 | 1436 | return 1; |
38d77545 | 1437 | |
77592908 | 1438 | case OPTION_RELAX: |
13761a11 | 1439 | msp430_enable_relax = 1; |
77592908 | 1440 | return 1; |
13761a11 | 1441 | |
77592908 DD |
1442 | case OPTION_POLYMORPHS: |
1443 | msp430_enable_polys = 1; | |
1444 | return 1; | |
13761a11 NC |
1445 | |
1446 | case OPTION_LARGE: | |
1447 | large_model = TRUE; | |
1448 | return 1; | |
1449 | ||
1450 | case OPTION_NO_INTR_NOPS: | |
1451 | gen_interrupt_nops = FALSE; | |
1452 | return 1; | |
a75555d1 NC |
1453 | case OPTION_INTR_NOPS: |
1454 | gen_interrupt_nops = TRUE; | |
1455 | return 1; | |
ab905915 | 1456 | |
65d7bab5 NC |
1457 | case OPTION_WARN_INTR_NOPS: |
1458 | warn_interrupt_nops = TRUE; | |
1459 | return 1; | |
1460 | case OPTION_NO_WARN_INTR_NOPS: | |
1461 | warn_interrupt_nops = FALSE; | |
1462 | return 1; | |
1463 | ||
d5579774 JL |
1464 | case OPTION_UNKNOWN_INTR_NOPS: |
1465 | do_unknown_interrupt_nops = TRUE; | |
1466 | return 1; | |
1467 | case OPTION_NO_UNKNOWN_INTR_NOPS: | |
1468 | do_unknown_interrupt_nops = FALSE; | |
1469 | return 1; | |
1470 | ||
1de037a0 JL |
1471 | case OPTION_MOVE_DATA: |
1472 | /* Silently ignored. */ | |
1473 | return 1; | |
1474 | ||
7ef3addb JL |
1475 | case OPTION_DATA_REGION: |
1476 | if (strcmp (arg, "upper") == 0 | |
1477 | || strcmp (arg, "either") == 0) | |
1478 | upper_data_region_in_use = TRUE; | |
c0ea7c52 JL |
1479 | if (strcmp (arg, "upper") == 0 |
1480 | || strcmp (arg, "either") == 0 | |
1481 | /* With data-region=none, the compiler has generated code assuming | |
1482 | data could be in the upper region, but nothing has been explicitly | |
1483 | placed there. */ | |
1484 | || strcmp (arg, "none") == 0) | |
1485 | lower_data_region_only = FALSE; | |
7ef3addb | 1486 | return 1; |
2469cfa2 NC |
1487 | } |
1488 | ||
1489 | return 0; | |
1490 | } | |
1491 | ||
34b822e3 DD |
1492 | /* The intention here is to have the mere presence of these sections |
1493 | cause the object to have a reference to a well-known symbol. This | |
1494 | reference pulls in the bits of the runtime (crt0) that initialize | |
1495 | these sections. Thus, for example, the startup code to call | |
1496 | memset() to initialize .bss will only be linked in when there is a | |
1497 | non-empty .bss section. Otherwise, the call would exist but have a | |
1498 | zero length parameter, which is a waste of memory and cycles. | |
1499 | ||
1500 | The code which initializes these sections should have a global | |
1501 | label for these symbols, and should be marked with KEEP() in the | |
837a17b3 NC |
1502 | linker script. */ |
1503 | ||
ab905915 | 1504 | static void |
837a17b3 | 1505 | msp430_make_init_symbols (const char * name) |
ab905915 | 1506 | { |
ab905915 | 1507 | if (strncmp (name, ".bss", 4) == 0 |
d5579774 JL |
1508 | || strncmp (name, ".lower.bss", 10) == 0 |
1509 | || strncmp (name, ".either.bss", 11) == 0 | |
ab905915 NC |
1510 | || strncmp (name, ".gnu.linkonce.b.", 16) == 0) |
1511 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1512 | ||
34b822e3 | 1513 | if (strncmp (name, ".data", 5) == 0 |
d5579774 JL |
1514 | || strncmp (name, ".lower.data", 11) == 0 |
1515 | || strncmp (name, ".either.data", 12) == 0 | |
34b822e3 | 1516 | || strncmp (name, ".gnu.linkonce.d.", 16) == 0) |
ab905915 | 1517 | (void) symbol_find_or_make ("__crt0_movedata"); |
837a17b3 NC |
1518 | /* Note - data assigned to the .either.data section may end up being |
1519 | placed in the .upper.data section if the .lower.data section is | |
7ef3addb JL |
1520 | full. Hence the need to define the crt0 symbol. |
1521 | The linker may create upper or either data sections, even when none exist | |
1522 | at the moment, so use the value of the data-region flag to determine if | |
1523 | the symbol is needed. */ | |
837a17b3 | 1524 | if (strncmp (name, ".either.data", 12) == 0 |
7ef3addb JL |
1525 | || strncmp (name, ".upper.data", 11) == 0 |
1526 | || upper_data_region_in_use) | |
837a17b3 NC |
1527 | (void) symbol_find_or_make ("__crt0_move_highdata"); |
1528 | ||
1529 | /* See note about .either.data above. */ | |
1530 | if (strncmp (name, ".upper.bss", 10) == 0 | |
7ef3addb JL |
1531 | || strncmp (name, ".either.bss", 11) == 0 |
1532 | || upper_data_region_in_use) | |
837a17b3 | 1533 | (void) symbol_find_or_make ("__crt0_init_highbss"); |
5d5b0bd3 JL |
1534 | |
1535 | /* The following symbols are for the crt0 functions that run through | |
1536 | the different .*_array sections and call the functions placed there. | |
1537 | - init_array stores global static C++ constructors to run before main. | |
1538 | - preinit_array is not expected to ever be used for MSP430. | |
1539 | GCC only places initialization functions for runtime "sanitizers" | |
1540 | (i.e. {a,l,t,u}san) and "virtual table verification" in preinit_array. | |
1541 | - fini_array stores global static C++ destructors to run after calling | |
1542 | exit() or returning from main. | |
1543 | __crt0_run_array is required to actually call the functions in the above | |
1544 | arrays. */ | |
1545 | if (strncmp (name, ".init_array", 11) == 0) | |
1546 | { | |
1547 | (void) symbol_find_or_make ("__crt0_run_init_array"); | |
1548 | (void) symbol_find_or_make ("__crt0_run_array"); | |
1549 | } | |
1550 | else if (strncmp (name, ".preinit_array", 14) == 0) | |
1551 | { | |
1552 | (void) symbol_find_or_make ("__crt0_run_preinit_array"); | |
1553 | (void) symbol_find_or_make ("__crt0_run_array"); | |
1554 | } | |
1555 | else if (strncmp (name, ".fini_array", 11) == 0) | |
1556 | { | |
1557 | (void) symbol_find_or_make ("__crt0_run_fini_array"); | |
1558 | (void) symbol_find_or_make ("__crt0_run_array"); | |
1559 | } | |
837a17b3 NC |
1560 | } |
1561 | ||
1562 | static void | |
1563 | msp430_section (int arg) | |
1564 | { | |
1565 | char * saved_ilp = input_line_pointer; | |
b9bb4a93 | 1566 | const char * name = obj_elf_section_name (); |
837a17b3 NC |
1567 | |
1568 | msp430_make_init_symbols (name); | |
3739860c | 1569 | |
ab905915 NC |
1570 | input_line_pointer = saved_ilp; |
1571 | obj_elf_section (arg); | |
1572 | } | |
1573 | ||
34b822e3 DD |
1574 | void |
1575 | msp430_frob_section (asection *sec) | |
1576 | { | |
1577 | const char *name = sec->name; | |
1578 | ||
1579 | if (sec->size == 0) | |
1580 | return; | |
1581 | ||
837a17b3 | 1582 | msp430_make_init_symbols (name); |
34b822e3 DD |
1583 | } |
1584 | ||
1585 | static void | |
1586 | msp430_lcomm (int ignore ATTRIBUTE_UNUSED) | |
1587 | { | |
1588 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
1589 | ||
1590 | if (symbolP) | |
1591 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
1592 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1593 | } | |
1594 | ||
1595 | static void | |
1596 | msp430_comm (int needs_align) | |
1597 | { | |
1598 | s_comm_internal (needs_align, elf_common_parse); | |
1599 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1600 | } | |
1601 | ||
96b96102 DD |
1602 | static void |
1603 | msp430_refsym (int arg ATTRIBUTE_UNUSED) | |
1604 | { | |
1605 | char sym_name[1024]; | |
1606 | input_line_pointer = extract_word (input_line_pointer, sym_name, 1024); | |
1607 | ||
1608 | (void) symbol_find_or_make (sym_name); | |
1609 | } | |
1610 | ||
c0ea7c52 JL |
1611 | /* Handle a .mspabi_attribute or .gnu_attribute directive. |
1612 | attr_type is 0 for .mspabi_attribute or 1 for .gnu_attribute. | |
1613 | This is only used for validating the attributes in the assembly file against | |
1614 | the options gas has been invoked with. If the attributes and options are | |
1615 | compatible then we add the attributes to the assembly file in | |
1616 | msp430_md_end. */ | |
1617 | static void | |
1618 | msp430_object_attribute (int attr_type) | |
1619 | { | |
1620 | char tag_name_s[32]; | |
1621 | char tag_value_s[32]; | |
1622 | int tag_name, tag_value; | |
1623 | /* First operand is the tag name, second is the tag value e.g. | |
1624 | ".mspabi_attribute 4, 2". */ | |
1625 | input_line_pointer = extract_operand (input_line_pointer, tag_name_s, 32); | |
1626 | input_line_pointer = extract_operand (input_line_pointer, tag_value_s, 32); | |
1627 | tag_name = atoi (tag_name_s); | |
1628 | tag_value = atoi (tag_value_s); | |
1629 | /* If the attribute directive is present, the tag_value should never be set | |
1630 | to 0. */ | |
1631 | if (tag_name == 0 || tag_value == 0) | |
1632 | as_bad (_("bad arguments \"%s\" and/or \"%s\" in %s directive"), | |
1633 | tag_name_s, tag_value_s, (attr_type ? ".gnu_attribute" | |
1634 | : ".mspabi_attribute")); | |
1635 | else if (attr_type == 0) | |
1636 | /* Handle .mspabi_attribute. */ | |
1637 | switch (tag_name) | |
1638 | { | |
1639 | case OFBA_MSPABI_Tag_ISA: | |
1640 | switch (tag_value) | |
1641 | { | |
1642 | case OFBA_MSPABI_Val_ISA_MSP430: | |
1643 | if (target_is_430x ()) | |
1644 | as_bad (_("file was compiled for the 430 ISA but the %s ISA is " | |
1645 | "selected"), (target_is_430xv2 () ? "430X" : "430Xv2")); | |
1646 | break; | |
1647 | case OFBA_MSPABI_Val_ISA_MSP430X: | |
1648 | if (!target_is_430x ()) | |
1649 | as_bad (_("file was compiled for the 430X ISA but the 430 ISA is " | |
1650 | "selected")); | |
1651 | break; | |
1652 | default: | |
1653 | as_bad (_("unknown MSPABI build attribute value '%d' for " | |
1654 | "OFBA_MSPABI_Tag_ISA(%d) in .mspabi_attribute directive"), | |
1655 | tag_value, OFBA_MSPABI_Tag_ISA); | |
1656 | break; | |
1657 | } | |
1658 | break; | |
1659 | case OFBA_MSPABI_Tag_Code_Model: | |
1660 | /* Fall through. */ | |
1661 | case OFBA_MSPABI_Tag_Data_Model: | |
1662 | /* FIXME: Might we want to set the memory model to large if the assembly | |
1663 | file has the large model attribute, but -ml has not been passed? */ | |
1664 | switch (tag_value) | |
1665 | { | |
1666 | case OFBA_MSPABI_Val_Code_Model_SMALL: | |
1667 | if (large_model) | |
1668 | as_bad (_("file was compiled for the small memory model, but the " | |
1669 | "large memory model is selected")); | |
1670 | break; | |
1671 | case OFBA_MSPABI_Val_Code_Model_LARGE: | |
1672 | if (!large_model) | |
1673 | as_bad (_("file was compiled for the large memory model, " | |
1674 | "but the small memory model is selected")); | |
1675 | break; | |
1676 | default: | |
1677 | as_bad (_("unknown MSPABI build attribute value '%d' for %s(%d) " | |
1678 | "in .mspabi_attribute directive"), tag_value, | |
1679 | (tag_name == OFBA_MSPABI_Tag_Code_Model | |
1680 | ? "OFBA_MSPABI_Tag_Code_Model" | |
1681 | : "OFBA_MSPABI_Tag_Data_Model"), | |
1682 | (tag_name == OFBA_MSPABI_Tag_Code_Model | |
1683 | ? OFBA_MSPABI_Tag_Code_Model | |
1684 | : OFBA_MSPABI_Tag_Data_Model)); | |
1685 | break; | |
1686 | } | |
1687 | break; | |
1688 | default: | |
1689 | as_bad (_("unknown MSPABI build attribute tag '%d' in " | |
1690 | ".mspabi_attribute directive"), tag_name); | |
1691 | break; | |
1692 | } | |
1693 | else if (attr_type == 1) | |
1694 | /* Handle .gnu_attribute. */ | |
1695 | switch (tag_name) | |
1696 | { | |
1697 | case Tag_GNU_MSP430_Data_Region: | |
1698 | /* This attribute is only applicable in the large memory model. */ | |
1699 | if (!large_model) | |
1700 | break; | |
1701 | switch (tag_value) | |
1702 | { | |
1703 | case Val_GNU_MSP430_Data_Region_Lower: | |
1704 | if (!lower_data_region_only) | |
1705 | as_bad (_("file was compiled assuming all data will be in the " | |
1706 | "lower memory region, but the upper region is in use")); | |
1707 | break; | |
1708 | case Val_GNU_MSP430_Data_Region_Any: | |
1709 | if (lower_data_region_only) | |
1710 | as_bad (_("file was compiled assuming data could be in the upper " | |
1711 | "memory region, but the lower data region is " | |
1712 | "exclusively in use")); | |
1713 | break; | |
1714 | default: | |
1715 | as_bad (_("unknown GNU build attribute value '%d' for " | |
1716 | "Tag_GNU_MSP430_Data_Region(%d) in .gnu_attribute " | |
1717 | "directive"), tag_value, Tag_GNU_MSP430_Data_Region); | |
1718 | } | |
1719 | } | |
1720 | else | |
1721 | as_bad (_("internal: unexpected argument '%d' to msp430_object_attribute"), | |
1722 | attr_type); | |
1723 | } | |
1724 | ||
b18c562e | 1725 | const pseudo_typeS md_pseudo_table[] = |
2469cfa2 | 1726 | { |
638d3803 NC |
1727 | {"arch", msp430_set_arch, OPTION_MMCU}, |
1728 | {"cpu", msp430_set_arch, OPTION_MCPU}, | |
b18c562e | 1729 | {"profiler", msp430_profiler, 0}, |
ab905915 NC |
1730 | {"section", msp430_section, 0}, |
1731 | {"section.s", msp430_section, 0}, | |
1732 | {"sect", msp430_section, 0}, | |
1733 | {"sect.s", msp430_section, 0}, | |
1734 | {"pushsection", msp430_section, 1}, | |
96b96102 | 1735 | {"refsym", msp430_refsym, 0}, |
34b822e3 DD |
1736 | {"comm", msp430_comm, 0}, |
1737 | {"lcomm", msp430_lcomm, 0}, | |
c0ea7c52 JL |
1738 | {"mspabi_attribute", msp430_object_attribute, 0}, |
1739 | {"gnu_attribute", msp430_object_attribute, 1}, | |
b18c562e NC |
1740 | {NULL, NULL, 0} |
1741 | }; | |
2469cfa2 | 1742 | |
d5579774 | 1743 | const char *md_shortopts = "mm:,mP,mQ,ml,mN,mn,my,mY,mu,mU"; |
2469cfa2 | 1744 | |
b18c562e | 1745 | struct option md_longopts[] = |
2469cfa2 | 1746 | { |
2213f746 NC |
1747 | {"msilicon-errata", required_argument, NULL, OPTION_SILICON_ERRATA}, |
1748 | {"msilicon-errata-warn", required_argument, NULL, OPTION_SILICON_ERRATA_WARN}, | |
b18c562e | 1749 | {"mmcu", required_argument, NULL, OPTION_MMCU}, |
638d3803 | 1750 | {"mcpu", required_argument, NULL, OPTION_MCPU}, |
77592908 DD |
1751 | {"mP", no_argument, NULL, OPTION_POLYMORPHS}, |
1752 | {"mQ", no_argument, NULL, OPTION_RELAX}, | |
13761a11 NC |
1753 | {"ml", no_argument, NULL, OPTION_LARGE}, |
1754 | {"mN", no_argument, NULL, OPTION_NO_INTR_NOPS}, | |
a75555d1 | 1755 | {"mn", no_argument, NULL, OPTION_INTR_NOPS}, |
69227609 NC |
1756 | {"mY", no_argument, NULL, OPTION_NO_WARN_INTR_NOPS}, |
1757 | {"my", no_argument, NULL, OPTION_WARN_INTR_NOPS}, | |
d5579774 JL |
1758 | {"mu", no_argument, NULL, OPTION_UNKNOWN_INTR_NOPS}, |
1759 | {"mU", no_argument, NULL, OPTION_NO_UNKNOWN_INTR_NOPS}, | |
1de037a0 | 1760 | {"md", no_argument, NULL, OPTION_MOVE_DATA}, |
7ef3addb | 1761 | {"mdata-region", required_argument, NULL, OPTION_DATA_REGION}, |
b18c562e NC |
1762 | {NULL, no_argument, NULL, 0} |
1763 | }; | |
2469cfa2 | 1764 | |
b18c562e | 1765 | size_t md_longopts_size = sizeof (md_longopts); |
2469cfa2 | 1766 | |
b18c562e NC |
1767 | void |
1768 | md_show_usage (FILE * stream) | |
2469cfa2 | 1769 | { |
b18c562e NC |
1770 | fprintf (stream, |
1771 | _("MSP430 options:\n" | |
638d3803 NC |
1772 | " -mmcu=<msp430-name> - select microcontroller type\n" |
1773 | " -mcpu={430|430x|430xv2} - select microcontroller architecture\n")); | |
2213f746 NC |
1774 | fprintf (stream, |
1775 | _(" -msilicon-errata=<name>[,<name>...] - enable fixups for silicon errata\n" | |
1776 | " -msilicon-errata-warn=<name>[,<name>...] - warn when a fixup might be needed\n" | |
ff1fe6fa | 1777 | " supported errata names: cpu4, cpu8, cpu11, cpu12, cpu13, cpu19\n")); |
77592908 DD |
1778 | fprintf (stream, |
1779 | _(" -mQ - enable relaxation at assembly time. DANGEROUS!\n" | |
1780 | " -mP - enable polymorph instructions\n")); | |
13761a11 NC |
1781 | fprintf (stream, |
1782 | _(" -ml - enable large code model\n")); | |
1783 | fprintf (stream, | |
65d7bab5 | 1784 | _(" -mN - do not insert NOPs after changing interrupts (default)\n")); |
a75555d1 | 1785 | fprintf (stream, |
65d7bab5 NC |
1786 | _(" -mn - insert a NOP after changing interrupts\n")); |
1787 | fprintf (stream, | |
69227609 | 1788 | _(" -mY - do not warn about missing NOPs after changing interrupts\n")); |
65d7bab5 | 1789 | fprintf (stream, |
69227609 | 1790 | _(" -my - warn about missing NOPs after changing interrupts (default)\n")); |
d5579774 JL |
1791 | fprintf (stream, |
1792 | _(" -mU - for an instruction which changes interrupt state, but where it is not\n" | |
1793 | " known how the state is changed, do not warn/insert NOPs\n")); | |
1794 | fprintf (stream, | |
1795 | _(" -mu - for an instruction which changes interrupt state, but where it is not\n" | |
1796 | " known how the state is changed, warn/insert NOPs (default)\n" | |
1797 | " -mn and/or -my are required for this to have any effect\n")); | |
7ef3addb JL |
1798 | fprintf (stream, |
1799 | _(" -mdata-region={none|lower|upper|either} - select region data will be\n" | |
1800 | " placed in.\n")); | |
b18c562e | 1801 | } |
2469cfa2 | 1802 | |
b18c562e NC |
1803 | symbolS * |
1804 | md_undefined_symbol (char * name ATTRIBUTE_UNUSED) | |
1805 | { | |
13761a11 | 1806 | return NULL; |
2469cfa2 NC |
1807 | } |
1808 | ||
1809 | static char * | |
b18c562e | 1810 | extract_cmd (char * from, char * to, int limit) |
2469cfa2 NC |
1811 | { |
1812 | int size = 0; | |
1813 | ||
1814 | while (*from && ! ISSPACE (*from) && *from != '.' && limit > size) | |
1815 | { | |
1816 | *(to + size) = *from; | |
1817 | from++; | |
1818 | size++; | |
1819 | } | |
1820 | ||
1821 | *(to + size) = 0; | |
1822 | ||
1823 | return from; | |
1824 | } | |
1825 | ||
6d4af3c2 | 1826 | const char * |
b18c562e | 1827 | md_atof (int type, char * litP, int * sizeP) |
2469cfa2 | 1828 | { |
499ac353 | 1829 | return ieee_md_atof (type, litP, sizeP, FALSE); |
2469cfa2 NC |
1830 | } |
1831 | ||
1832 | void | |
b18c562e | 1833 | md_begin (void) |
2469cfa2 | 1834 | { |
b18c562e | 1835 | struct msp430_opcode_s * opcode; |
629310ab | 1836 | msp430_hash = str_htab_create (); |
2469cfa2 NC |
1837 | |
1838 | for (opcode = msp430_opcodes; opcode->name; opcode++) | |
fe0e921f | 1839 | str_hash_insert (msp430_hash, opcode->name, opcode, 0); |
2469cfa2 | 1840 | |
638d3803 NC |
1841 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, |
1842 | target_is_430x () ? bfd_mach_msp430x : bfd_mach_msp11); | |
9117cd3e TS |
1843 | |
1844 | /* Set linkrelax here to avoid fixups in most sections. */ | |
1845 | linkrelax = 1; | |
2469cfa2 NC |
1846 | } |
1847 | ||
791755f5 NC |
1848 | static inline bfd_boolean |
1849 | is_regname_end (char c) | |
1850 | { | |
1851 | return (c == 0 || ! ISALNUM (c)); | |
1852 | } | |
1853 | ||
13761a11 NC |
1854 | /* Returns the register number equivalent to the string T. |
1855 | Returns -1 if there is no such register. | |
1856 | Skips a leading 'r' or 'R' character if there is one. | |
1857 | Handles the register aliases PC and SP. */ | |
1858 | ||
1859 | static signed int | |
b18c562e | 1860 | check_reg (char * t) |
2469cfa2 | 1861 | { |
791755f5 NC |
1862 | char * endt; |
1863 | signed long int val; | |
2469cfa2 | 1864 | |
791755f5 | 1865 | if (t == NULL || t[0] == 0) |
13761a11 | 1866 | return -1; |
2469cfa2 | 1867 | |
13761a11 NC |
1868 | if (*t == 'r' || *t == 'R') |
1869 | ++t; | |
1870 | ||
791755f5 | 1871 | if (strncasecmp (t, "pc", 2) == 0 && is_regname_end (t[2])) |
13761a11 | 1872 | return 0; |
2469cfa2 | 1873 | |
791755f5 | 1874 | if (strncasecmp (t, "sp", 2) == 0 && is_regname_end (t[2])) |
b18c562e | 1875 | return 1; |
2469cfa2 | 1876 | |
791755f5 | 1877 | if (strncasecmp (t, "sr", 2) == 0 && is_regname_end (t[2])) |
13761a11 NC |
1878 | return 2; |
1879 | ||
791755f5 | 1880 | if (*t == '0' && is_regname_end (t[1])) |
13761a11 | 1881 | return 0; |
2469cfa2 | 1882 | |
791755f5 | 1883 | val = strtol (t, & endt, 0); |
13761a11 NC |
1884 | |
1885 | if (val < 1 || val > 15) | |
1886 | return -1; | |
1887 | ||
791755f5 NC |
1888 | if (is_regname_end (*endt)) |
1889 | return val; | |
1890 | ||
1891 | return -1; | |
13761a11 | 1892 | } |
2469cfa2 | 1893 | |
b18c562e NC |
1894 | static int |
1895 | msp430_srcoperand (struct msp430_operand_s * op, | |
13761a11 NC |
1896 | char * l, |
1897 | int bin, | |
00b32ff2 | 1898 | bfd_boolean * imm_op, |
13761a11 NC |
1899 | bfd_boolean allow_20bit_values, |
1900 | bfd_boolean constants_allowed) | |
2469cfa2 | 1901 | { |
2bfa0cdf | 1902 | char * end; |
b18c562e | 1903 | char *__tl = l; |
2469cfa2 | 1904 | |
b18c562e NC |
1905 | /* Check if an immediate #VALUE. The hash sign should be only at the beginning! */ |
1906 | if (*l == '#') | |
2469cfa2 | 1907 | { |
b18c562e NC |
1908 | char *h = l; |
1909 | int vshift = -1; | |
1910 | int rval = 0; | |
131cb553 JL |
1911 | /* Use all parts of the constant expression by default. */ |
1912 | enum msp430_expp_e expp = MSP_EXPP_ALL; | |
2469cfa2 | 1913 | |
b18c562e NC |
1914 | /* Check if there is: |
1915 | llo(x) - least significant 16 bits, x &= 0xffff | |
1916 | lhi(x) - x = (x >> 16) & 0xffff, | |
1917 | hlo(x) - x = (x >> 32) & 0xffff, | |
1918 | hhi(x) - x = (x >> 48) & 0xffff | |
131cb553 | 1919 | The value _MUST_ be an immediate expression: #hlo(1231231231). */ |
2469cfa2 | 1920 | |
00b32ff2 | 1921 | *imm_op = TRUE; |
2469cfa2 | 1922 | |
b18c562e NC |
1923 | if (strncasecmp (h, "#llo(", 5) == 0) |
1924 | { | |
1925 | vshift = 0; | |
1926 | rval = 3; | |
131cb553 | 1927 | expp = MSP_EXPP_LLO; |
b18c562e NC |
1928 | } |
1929 | else if (strncasecmp (h, "#lhi(", 5) == 0) | |
1930 | { | |
1931 | vshift = 1; | |
1932 | rval = 3; | |
131cb553 | 1933 | expp = MSP_EXPP_LHI; |
b18c562e NC |
1934 | } |
1935 | else if (strncasecmp (h, "#hlo(", 5) == 0) | |
1936 | { | |
1937 | vshift = 2; | |
1938 | rval = 3; | |
131cb553 | 1939 | expp = MSP_EXPP_HLO; |
b18c562e NC |
1940 | } |
1941 | else if (strncasecmp (h, "#hhi(", 5) == 0) | |
1942 | { | |
1943 | vshift = 3; | |
1944 | rval = 3; | |
131cb553 | 1945 | expp = MSP_EXPP_HHI; |
b18c562e NC |
1946 | } |
1947 | else if (strncasecmp (h, "#lo(", 4) == 0) | |
1948 | { | |
1949 | vshift = 0; | |
1950 | rval = 2; | |
131cb553 | 1951 | expp = MSP_EXPP_LO; |
b18c562e NC |
1952 | } |
1953 | else if (strncasecmp (h, "#hi(", 4) == 0) | |
1954 | { | |
1955 | vshift = 1; | |
1956 | rval = 2; | |
131cb553 | 1957 | expp = MSP_EXPP_HI; |
b18c562e | 1958 | } |
2469cfa2 | 1959 | |
b18c562e NC |
1960 | op->reg = 0; /* Reg PC. */ |
1961 | op->am = 3; | |
65d7bab5 | 1962 | op->ol = 1; /* Immediate will follow an instruction. */ |
b18c562e NC |
1963 | __tl = h + 1 + rval; |
1964 | op->mode = OP_EXP; | |
00b32ff2 | 1965 | op->vshift = vshift; |
131cb553 | 1966 | op->expp = expp; |
2469cfa2 | 1967 | |
2bfa0cdf NC |
1968 | end = parse_exp (__tl, &(op->exp)); |
1969 | if (end != NULL && *end != 0 && *end != ')' ) | |
1970 | { | |
1971 | as_bad (_("extra characters '%s' at end of immediate expression '%s'"), end, l); | |
1972 | return 1; | |
1973 | } | |
b18c562e | 1974 | if (op->exp.X_op == O_constant) |
2469cfa2 | 1975 | { |
b18c562e | 1976 | int x = op->exp.X_add_number; |
2469cfa2 | 1977 | |
b18c562e | 1978 | if (vshift == 0) |
2469cfa2 | 1979 | { |
b18c562e NC |
1980 | x = x & 0xffff; |
1981 | op->exp.X_add_number = x; | |
1982 | } | |
1983 | else if (vshift == 1) | |
1984 | { | |
1985 | x = (x >> 16) & 0xffff; | |
1986 | op->exp.X_add_number = x; | |
00b32ff2 | 1987 | op->vshift = 0; |
b18c562e NC |
1988 | } |
1989 | else if (vshift > 1) | |
1990 | { | |
1991 | if (x < 0) | |
1992 | op->exp.X_add_number = -1; | |
2469cfa2 | 1993 | else |
b18c562e NC |
1994 | op->exp.X_add_number = 0; /* Nothing left. */ |
1995 | x = op->exp.X_add_number; | |
00b32ff2 | 1996 | op->vshift = 0; |
2469cfa2 | 1997 | } |
2469cfa2 | 1998 | |
13761a11 NC |
1999 | if (allow_20bit_values) |
2000 | { | |
99b4a5a0 | 2001 | if (op->exp.X_add_number > 0xfffff || op->exp.X_add_number < -524288) |
13761a11 NC |
2002 | { |
2003 | as_bad (_("value 0x%x out of extended range."), x); | |
2004 | return 1; | |
2005 | } | |
2006 | } | |
2007 | else if (op->exp.X_add_number > 65535 || op->exp.X_add_number < -32768) | |
b18c562e NC |
2008 | { |
2009 | as_bad (_("value %d out of range. Use #lo() or #hi()"), x); | |
2010 | return 1; | |
2011 | } | |
2469cfa2 | 2012 | |
b18c562e NC |
2013 | /* Now check constants. */ |
2014 | /* Substitute register mode with a constant generator if applicable. */ | |
2469cfa2 | 2015 | |
13761a11 NC |
2016 | if (!allow_20bit_values) |
2017 | x = (short) x; /* Extend sign. */ | |
2469cfa2 | 2018 | |
13761a11 NC |
2019 | if (! constants_allowed) |
2020 | ; | |
2021 | else if (x == 0) | |
2469cfa2 | 2022 | { |
b18c562e NC |
2023 | op->reg = 3; |
2024 | op->am = 0; | |
2025 | op->ol = 0; | |
2026 | op->mode = OP_REG; | |
2027 | } | |
2028 | else if (x == 1) | |
2029 | { | |
2030 | op->reg = 3; | |
2031 | op->am = 1; | |
2032 | op->ol = 0; | |
2033 | op->mode = OP_REG; | |
2034 | } | |
2035 | else if (x == 2) | |
2036 | { | |
2037 | op->reg = 3; | |
2038 | op->am = 2; | |
2039 | op->ol = 0; | |
2040 | op->mode = OP_REG; | |
2041 | } | |
2042 | else if (x == -1) | |
2043 | { | |
2044 | op->reg = 3; | |
2045 | op->am = 3; | |
2046 | op->ol = 0; | |
2047 | op->mode = OP_REG; | |
2048 | } | |
2049 | else if (x == 4) | |
2050 | { | |
2213f746 | 2051 | if (bin == 0x1200 && ! target_is_430x ()) |
b18c562e | 2052 | { |
2213f746 NC |
2053 | /* CPU4: The shorter form of PUSH #4 is not supported on MSP430. */ |
2054 | if (silicon_errata_warn & SILICON_ERRATA_CPU4) | |
2055 | as_warn (_("cpu4: not converting PUSH #4 to shorter form")); | |
2056 | /* No need to check silicon_errata_fixes - this fix is always implemented. */ | |
b18c562e NC |
2057 | } |
2058 | else | |
b18c562e NC |
2059 | { |
2060 | op->reg = 2; | |
2061 | op->am = 2; | |
2062 | op->ol = 0; | |
2063 | op->mode = OP_REG; | |
2064 | } | |
2065 | } | |
2066 | else if (x == 8) | |
2067 | { | |
2213f746 | 2068 | if (bin == 0x1200 && ! target_is_430x ()) |
b18c562e | 2069 | { |
2213f746 NC |
2070 | /* CPU4: The shorter form of PUSH #8 is not supported on MSP430. */ |
2071 | if (silicon_errata_warn & SILICON_ERRATA_CPU4) | |
2072 | as_warn (_("cpu4: not converting PUSH #8 to shorter form")); | |
b18c562e NC |
2073 | } |
2074 | else | |
b18c562e NC |
2075 | { |
2076 | op->reg = 2; | |
2077 | op->am = 3; | |
2078 | op->ol = 0; | |
2079 | op->mode = OP_REG; | |
2080 | } | |
2469cfa2 | 2081 | } |
2469cfa2 | 2082 | } |
b18c562e NC |
2083 | else if (op->exp.X_op == O_symbol) |
2084 | { | |
00b32ff2 NC |
2085 | if (vshift > 1) |
2086 | as_bad (_("error: unsupported #foo() directive used on symbol")); | |
b18c562e NC |
2087 | op->mode = OP_EXP; |
2088 | } | |
2089 | else if (op->exp.X_op == O_big) | |
2090 | { | |
2091 | short x; | |
65d7bab5 | 2092 | |
b18c562e NC |
2093 | if (vshift != -1) |
2094 | { | |
2095 | op->exp.X_op = O_constant; | |
2096 | op->exp.X_add_number = 0xffff & generic_bignum[vshift]; | |
2097 | x = op->exp.X_add_number; | |
00b32ff2 | 2098 | op->vshift = 0; |
b18c562e NC |
2099 | } |
2100 | else | |
2101 | { | |
2102 | as_bad (_ | |
33eaf5de | 2103 | ("unknown expression in operand %s. Use #llo(), #lhi(), #hlo() or #hhi()"), |
b18c562e NC |
2104 | l); |
2105 | return 1; | |
2106 | } | |
2469cfa2 | 2107 | |
b18c562e NC |
2108 | if (x == 0) |
2109 | { | |
2110 | op->reg = 3; | |
2111 | op->am = 0; | |
2112 | op->ol = 0; | |
2113 | op->mode = OP_REG; | |
2114 | } | |
2115 | else if (x == 1) | |
2116 | { | |
2117 | op->reg = 3; | |
2118 | op->am = 1; | |
2119 | op->ol = 0; | |
2120 | op->mode = OP_REG; | |
2121 | } | |
2122 | else if (x == 2) | |
2123 | { | |
2124 | op->reg = 3; | |
2125 | op->am = 2; | |
2126 | op->ol = 0; | |
2127 | op->mode = OP_REG; | |
2128 | } | |
2129 | else if (x == -1) | |
2130 | { | |
2131 | op->reg = 3; | |
2132 | op->am = 3; | |
2133 | op->ol = 0; | |
2134 | op->mode = OP_REG; | |
2135 | } | |
2136 | else if (x == 4) | |
2137 | { | |
2138 | op->reg = 2; | |
2139 | op->am = 2; | |
2140 | op->ol = 0; | |
2141 | op->mode = OP_REG; | |
2142 | } | |
2143 | else if (x == 8) | |
2144 | { | |
2145 | op->reg = 2; | |
2146 | op->am = 3; | |
2147 | op->ol = 0; | |
2148 | op->mode = OP_REG; | |
2149 | } | |
2150 | } | |
79cf5950 | 2151 | /* Redundant (yet) check. */ |
b18c562e NC |
2152 | else if (op->exp.X_op == O_register) |
2153 | as_bad | |
2154 | (_("Registers cannot be used within immediate expression [%s]"), l); | |
2155 | else | |
2156 | as_bad (_("unknown operand %s"), l); | |
2469cfa2 | 2157 | |
b18c562e NC |
2158 | return 0; |
2159 | } | |
2469cfa2 | 2160 | |
b18c562e NC |
2161 | /* Check if absolute &VALUE (assume that we can construct something like ((a&b)<<7 + 25). */ |
2162 | if (*l == '&') | |
2163 | { | |
2164 | char *h = l; | |
2469cfa2 | 2165 | |
5d5b0bd3 JL |
2166 | op->reg = 2; /* Reg 2 in absolute addr mode. */ |
2167 | op->am = 1; /* Mode As == 01 bin. */ | |
b18c562e NC |
2168 | op->ol = 1; /* Immediate value followed by instruction. */ |
2169 | __tl = h + 1; | |
2bfa0cdf NC |
2170 | end = parse_exp (__tl, &(op->exp)); |
2171 | if (end != NULL && *end != 0) | |
2172 | { | |
2173 | as_bad (_("extra characters '%s' at the end of absolute operand '%s'"), end, l); | |
2174 | return 1; | |
2175 | } | |
b18c562e | 2176 | op->mode = OP_EXP; |
00b32ff2 | 2177 | op->vshift = 0; |
131cb553 | 2178 | op->expp = MSP_EXPP_ALL; |
b18c562e | 2179 | if (op->exp.X_op == O_constant) |
2469cfa2 | 2180 | { |
b18c562e | 2181 | int x = op->exp.X_add_number; |
2469cfa2 | 2182 | |
13761a11 NC |
2183 | if (allow_20bit_values) |
2184 | { | |
2185 | if (x > 0xfffff || x < -(0x7ffff)) | |
2186 | { | |
2187 | as_bad (_("value 0x%x out of extended range."), x); | |
2188 | return 1; | |
2189 | } | |
2190 | } | |
2191 | else if (x > 65535 || x < -32768) | |
b18c562e | 2192 | { |
13761a11 | 2193 | as_bad (_("value out of range: 0x%x"), x); |
b18c562e NC |
2194 | return 1; |
2195 | } | |
2469cfa2 | 2196 | } |
b18c562e NC |
2197 | else if (op->exp.X_op == O_symbol) |
2198 | ; | |
2199 | else | |
2469cfa2 | 2200 | { |
79cf5950 | 2201 | /* Redundant (yet) check. */ |
b18c562e NC |
2202 | if (op->exp.X_op == O_register) |
2203 | as_bad | |
2204 | (_("Registers cannot be used within absolute expression [%s]"), l); | |
2469cfa2 | 2205 | else |
b18c562e NC |
2206 | as_bad (_("unknown expression in operand %s"), l); |
2207 | return 1; | |
2469cfa2 | 2208 | } |
b18c562e NC |
2209 | return 0; |
2210 | } | |
2469cfa2 | 2211 | |
b18c562e NC |
2212 | /* Check if indirect register mode @Rn / postincrement @Rn+. */ |
2213 | if (*l == '@') | |
2214 | { | |
2215 | char *t = l; | |
2216 | char *m = strchr (l, '+'); | |
2217 | ||
2218 | if (t != l) | |
2469cfa2 | 2219 | { |
b18c562e NC |
2220 | as_bad (_("unknown addressing mode %s"), l); |
2221 | return 1; | |
2469cfa2 NC |
2222 | } |
2223 | ||
b18c562e | 2224 | t++; |
2469cfa2 | 2225 | |
13761a11 | 2226 | if ((op->reg = check_reg (t)) == -1) |
2469cfa2 | 2227 | { |
13761a11 | 2228 | as_bad (_("Bad register name %s"), t); |
b18c562e | 2229 | return 1; |
2469cfa2 | 2230 | } |
2469cfa2 | 2231 | |
b18c562e NC |
2232 | op->mode = OP_REG; |
2233 | op->am = m ? 3 : 2; | |
2234 | op->ol = 0; | |
2469cfa2 | 2235 | |
d1706f38 NC |
2236 | /* PC cannot be used in indirect addressing. */ |
2237 | if (target_is_430xv2 () && op->reg == 0) | |
2238 | { | |
2239 | as_bad (_("cannot use indirect addressing with the PC")); | |
2240 | return 1; | |
2241 | } | |
65d7bab5 | 2242 | |
b18c562e NC |
2243 | return 0; |
2244 | } | |
2469cfa2 | 2245 | |
b18c562e NC |
2246 | /* Check if register indexed X(Rn). */ |
2247 | do | |
2248 | { | |
2249 | char *h = strrchr (l, '('); | |
2250 | char *m = strrchr (l, ')'); | |
2251 | char *t; | |
2469cfa2 | 2252 | |
00b32ff2 | 2253 | *imm_op = TRUE; |
2469cfa2 | 2254 | |
b18c562e NC |
2255 | if (!h) |
2256 | break; | |
2257 | if (!m) | |
2258 | { | |
2259 | as_bad (_("')' required")); | |
2260 | return 1; | |
2261 | } | |
2469cfa2 | 2262 | |
b18c562e NC |
2263 | t = h; |
2264 | op->am = 1; | |
2265 | op->ol = 1; | |
2469cfa2 | 2266 | |
13761a11 NC |
2267 | /* Extract a register. */ |
2268 | if ((op->reg = check_reg (t + 1)) == -1) | |
b18c562e NC |
2269 | { |
2270 | as_bad (_ | |
2271 | ("unknown operator %s. Did you mean X(Rn) or #[hl][hl][oi](CONST) ?"), | |
2272 | l); | |
2273 | return 1; | |
2274 | } | |
2469cfa2 | 2275 | |
13761a11 | 2276 | if (op->reg == 2) |
b18c562e | 2277 | { |
13761a11 | 2278 | as_bad (_("r2 should not be used in indexed addressing mode")); |
b18c562e NC |
2279 | return 1; |
2280 | } | |
b18c562e NC |
2281 | |
2282 | /* Extract constant. */ | |
2283 | __tl = l; | |
2284 | *h = 0; | |
2285 | op->mode = OP_EXP; | |
00b32ff2 | 2286 | op->vshift = 0; |
131cb553 | 2287 | op->expp = MSP_EXPP_ALL; |
2bfa0cdf NC |
2288 | end = parse_exp (__tl, &(op->exp)); |
2289 | if (end != NULL && *end != 0) | |
2290 | { | |
2291 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l); | |
2292 | return 1; | |
2293 | } | |
b18c562e NC |
2294 | if (op->exp.X_op == O_constant) |
2295 | { | |
2296 | int x = op->exp.X_add_number; | |
2297 | ||
13761a11 NC |
2298 | if (allow_20bit_values) |
2299 | { | |
2300 | if (x > 0xfffff || x < - (0x7ffff)) | |
2301 | { | |
2302 | as_bad (_("value 0x%x out of extended range."), x); | |
2303 | return 1; | |
2304 | } | |
2305 | } | |
2306 | else if (x > 65535 || x < -32768) | |
2469cfa2 | 2307 | { |
13761a11 | 2308 | as_bad (_("value out of range: 0x%x"), x); |
b18c562e | 2309 | return 1; |
2469cfa2 | 2310 | } |
b18c562e NC |
2311 | |
2312 | if (x == 0) | |
2469cfa2 | 2313 | { |
b18c562e NC |
2314 | op->mode = OP_REG; |
2315 | op->am = 2; | |
2316 | op->ol = 0; | |
2317 | return 0; | |
2469cfa2 | 2318 | } |
2213f746 NC |
2319 | |
2320 | if (op->reg == 1 && (x & 1)) | |
2321 | { | |
2322 | if (silicon_errata_fix & SILICON_ERRATA_CPU8) | |
2323 | as_bad (_("CPU8: Stack pointer accessed with an odd offset")); | |
2324 | else if (silicon_errata_warn & SILICON_ERRATA_CPU8) | |
2325 | as_warn (_("CPU8: Stack pointer accessed with an odd offset")); | |
2326 | } | |
2469cfa2 | 2327 | } |
b18c562e NC |
2328 | else if (op->exp.X_op == O_symbol) |
2329 | ; | |
2469cfa2 NC |
2330 | else |
2331 | { | |
79cf5950 | 2332 | /* Redundant (yet) check. */ |
b18c562e NC |
2333 | if (op->exp.X_op == O_register) |
2334 | as_bad | |
2335 | (_("Registers cannot be used as a prefix of indexed expression [%s]"), l); | |
2336 | else | |
2337 | as_bad (_("unknown expression in operand %s"), l); | |
2338 | return 1; | |
2469cfa2 | 2339 | } |
2469cfa2 | 2340 | |
b18c562e | 2341 | return 0; |
2469cfa2 | 2342 | } |
b18c562e | 2343 | while (0); |
2469cfa2 | 2344 | |
13761a11 NC |
2345 | /* Possibly register mode 'mov r1,r2'. */ |
2346 | if ((op->reg = check_reg (l)) != -1) | |
b18c562e | 2347 | { |
13761a11 NC |
2348 | op->mode = OP_REG; |
2349 | op->am = 0; | |
2350 | op->ol = 0; | |
2351 | return 0; | |
b18c562e | 2352 | } |
b18c562e NC |
2353 | |
2354 | /* Symbolic mode 'mov a, b' == 'mov x(pc), y(pc)'. */ | |
2bfa0cdf NC |
2355 | op->mode = OP_EXP; |
2356 | op->reg = 0; /* PC relative... be careful. */ | |
2357 | /* An expression starting with a minus sign is a constant, not an address. */ | |
2358 | op->am = (*l == '-' ? 3 : 1); | |
2359 | op->ol = 1; | |
2360 | op->vshift = 0; | |
131cb553 | 2361 | op->expp = MSP_EXPP_ALL; |
2bfa0cdf NC |
2362 | __tl = l; |
2363 | end = parse_exp (__tl, &(op->exp)); | |
2364 | if (end != NULL && * end != 0) | |
b18c562e | 2365 | { |
2bfa0cdf NC |
2366 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l); |
2367 | return 1; | |
b18c562e | 2368 | } |
2bfa0cdf | 2369 | return 0; |
2469cfa2 NC |
2370 | } |
2371 | ||
b18c562e | 2372 | |
2469cfa2 | 2373 | static int |
13761a11 NC |
2374 | msp430_dstoperand (struct msp430_operand_s * op, |
2375 | char * l, | |
2376 | int bin, | |
2377 | bfd_boolean allow_20bit_values, | |
2378 | bfd_boolean constants_allowed) | |
2469cfa2 NC |
2379 | { |
2380 | int dummy; | |
13761a11 NC |
2381 | int ret = msp430_srcoperand (op, l, bin, & dummy, |
2382 | allow_20bit_values, | |
2383 | constants_allowed); | |
b18c562e | 2384 | |
2469cfa2 NC |
2385 | if (ret) |
2386 | return ret; | |
2387 | ||
2388 | if (op->am == 2) | |
2389 | { | |
47990a6a | 2390 | char *__tl = (char *) "0"; |
2469cfa2 NC |
2391 | |
2392 | op->mode = OP_EXP; | |
2393 | op->am = 1; | |
2394 | op->ol = 1; | |
00b32ff2 | 2395 | op->vshift = 0; |
131cb553 | 2396 | op->expp = MSP_EXPP_ALL; |
2bfa0cdf | 2397 | (void) parse_exp (__tl, &(op->exp)); |
b18c562e | 2398 | |
2469cfa2 NC |
2399 | if (op->exp.X_op != O_constant || op->exp.X_add_number != 0) |
2400 | { | |
2401 | as_bad (_("Internal bug. Try to use 0(r%d) instead of @r%d"), | |
2402 | op->reg, op->reg); | |
2403 | return 1; | |
2404 | } | |
2405 | return 0; | |
2406 | } | |
2407 | ||
2408 | if (op->am > 1) | |
2409 | { | |
2410 | as_bad (_ | |
2411 | ("this addressing mode is not applicable for destination operand")); | |
2412 | return 1; | |
2413 | } | |
2414 | return 0; | |
2415 | } | |
2416 | ||
13761a11 NC |
2417 | /* Attempt to encode a MOVA instruction with the given operands. |
2418 | Returns the length of the encoded instruction if successful | |
2419 | or 0 upon failure. If the encoding fails, an error message | |
2420 | will be returned if a pointer is provided. */ | |
2421 | ||
2422 | static int | |
2423 | try_encode_mova (bfd_boolean imm_op, | |
2424 | int bin, | |
2425 | struct msp430_operand_s * op1, | |
2426 | struct msp430_operand_s * op2, | |
2427 | const char ** error_message_return) | |
2428 | { | |
2429 | short ZEROS = 0; | |
2430 | char *frag; | |
2431 | int where; | |
2432 | ||
2433 | /* Only a restricted subset of the normal MSP430 addressing modes | |
2434 | are supported here, so check for the ones that are allowed. */ | |
2435 | if (imm_op) | |
2436 | { | |
2437 | if (op1->mode == OP_EXP) | |
2438 | { | |
2439 | if (op2->mode != OP_REG) | |
2440 | { | |
2441 | if (error_message_return != NULL) | |
2442 | * error_message_return = _("expected register as second argument of %s"); | |
2443 | return 0; | |
2444 | } | |
2445 | ||
2446 | if (op1->am == 3) | |
2447 | { | |
2448 | /* MOVA #imm20, Rdst. */ | |
2449 | bin |= 0x80 | op2->reg; | |
2450 | frag = frag_more (4); | |
2451 | where = frag - frag_now->fr_literal; | |
2452 | if (op1->exp.X_op == O_constant) | |
2453 | { | |
2454 | bin |= ((op1->exp.X_add_number >> 16) & 0xf) << 8; | |
2455 | bfd_putl16 ((bfd_vma) bin, frag); | |
2456 | bfd_putl16 (op1->exp.X_add_number & 0xffff, frag + 2); | |
2457 | } | |
2458 | else | |
2459 | { | |
2460 | bfd_putl16 ((bfd_vma) bin, frag); | |
2461 | fix_new_exp (frag_now, where, 4, &(op1->exp), FALSE, | |
2462 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
2463 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2464 | } | |
2465 | ||
2466 | return 4; | |
2467 | } | |
2468 | else if (op1->am == 1) | |
2469 | { | |
2470 | /* MOVA z16(Rsrc), Rdst. */ | |
2471 | bin |= 0x30 | (op1->reg << 8) | op2->reg; | |
2472 | frag = frag_more (4); | |
2473 | where = frag - frag_now->fr_literal; | |
2474 | bfd_putl16 ((bfd_vma) bin, frag); | |
2475 | if (op1->exp.X_op == O_constant) | |
2476 | { | |
2477 | if (op1->exp.X_add_number > 0xffff | |
2478 | || op1->exp.X_add_number < -(0x7fff)) | |
2479 | { | |
2480 | if (error_message_return != NULL) | |
2481 | * error_message_return = _("index value too big for %s"); | |
2482 | return 0; | |
2483 | } | |
2484 | bfd_putl16 (op1->exp.X_add_number & 0xffff, frag + 2); | |
2485 | } | |
2486 | else | |
2487 | { | |
2488 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2489 | fix_new_exp (frag_now, where + 2, 2, &(op1->exp), FALSE, | |
2490 | op1->reg == 0 ? | |
2491 | BFD_RELOC_MSP430X_PCR16 : | |
2492 | BFD_RELOC_MSP430X_ABS16); | |
2493 | } | |
2494 | return 4; | |
2495 | } | |
2496 | ||
2497 | if (error_message_return != NULL) | |
2498 | * error_message_return = _("unexpected addressing mode for %s"); | |
2499 | return 0; | |
2500 | } | |
2501 | else if (op1->am == 0) | |
2502 | { | |
2503 | /* MOVA Rsrc, ... */ | |
2504 | if (op2->mode == OP_REG) | |
2505 | { | |
2506 | bin |= 0xc0 | (op1->reg << 8) | op2->reg; | |
2507 | frag = frag_more (2); | |
2508 | where = frag - frag_now->fr_literal; | |
2509 | bfd_putl16 ((bfd_vma) bin, frag); | |
2510 | return 2; | |
2511 | } | |
2512 | else if (op2->am == 1) | |
2513 | { | |
2514 | if (op2->reg == 2) | |
2515 | { | |
2516 | /* MOVA Rsrc, &abs20. */ | |
2517 | bin |= 0x60 | (op1->reg << 8); | |
2518 | frag = frag_more (4); | |
2519 | where = frag - frag_now->fr_literal; | |
2520 | if (op2->exp.X_op == O_constant) | |
2521 | { | |
2522 | bin |= (op2->exp.X_add_number >> 16) & 0xf; | |
2523 | bfd_putl16 ((bfd_vma) bin, frag); | |
2524 | bfd_putl16 (op2->exp.X_add_number & 0xffff, frag + 2); | |
2525 | } | |
2526 | else | |
2527 | { | |
2528 | bfd_putl16 ((bfd_vma) bin, frag); | |
2529 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2530 | fix_new_exp (frag_now, where, 4, &(op2->exp), FALSE, | |
2531 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
2532 | } | |
2533 | return 4; | |
2534 | } | |
2535 | ||
2536 | /* MOVA Rsrc, z16(Rdst). */ | |
2537 | bin |= 0x70 | (op1->reg << 8) | op2->reg; | |
2538 | frag = frag_more (4); | |
2539 | where = frag - frag_now->fr_literal; | |
2540 | bfd_putl16 ((bfd_vma) bin, frag); | |
2541 | if (op2->exp.X_op == O_constant) | |
2542 | { | |
2543 | if (op2->exp.X_add_number > 0xffff | |
2544 | || op2->exp.X_add_number < -(0x7fff)) | |
2545 | { | |
2546 | if (error_message_return != NULL) | |
2547 | * error_message_return = _("index value too big for %s"); | |
2548 | return 0; | |
2549 | } | |
2550 | bfd_putl16 (op2->exp.X_add_number & 0xffff, frag + 2); | |
2551 | } | |
2552 | else | |
2553 | { | |
2554 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2555 | fix_new_exp (frag_now, where + 2, 2, &(op2->exp), FALSE, | |
2556 | op2->reg == 0 ? | |
2557 | BFD_RELOC_MSP430X_PCR16 : | |
2558 | BFD_RELOC_MSP430X_ABS16); | |
2559 | } | |
2560 | return 4; | |
2561 | } | |
2562 | ||
2563 | if (error_message_return != NULL) | |
2564 | * error_message_return = _("unexpected addressing mode for %s"); | |
2565 | return 0; | |
2566 | } | |
2567 | } | |
2568 | ||
2569 | /* imm_op == FALSE. */ | |
2570 | ||
2571 | if (op1->reg == 2 && op1->am == 1 && op1->mode == OP_EXP) | |
2572 | { | |
2573 | /* MOVA &abs20, Rdst. */ | |
2574 | if (op2->mode != OP_REG) | |
2575 | { | |
2576 | if (error_message_return != NULL) | |
2577 | * error_message_return = _("expected register as second argument of %s"); | |
2578 | return 0; | |
2579 | } | |
2580 | ||
2581 | if (op2->reg == 2 || op2->reg == 3) | |
2582 | { | |
2583 | if (error_message_return != NULL) | |
2584 | * error_message_return = _("constant generator destination register found in %s"); | |
2585 | return 0; | |
2586 | } | |
2587 | ||
2588 | bin |= 0x20 | op2->reg; | |
2589 | frag = frag_more (4); | |
2590 | where = frag - frag_now->fr_literal; | |
2591 | if (op1->exp.X_op == O_constant) | |
2592 | { | |
2593 | bin |= ((op1->exp.X_add_number >> 16) & 0xf) << 8; | |
2594 | bfd_putl16 ((bfd_vma) bin, frag); | |
2595 | bfd_putl16 (op1->exp.X_add_number & 0xffff, frag + 2); | |
2596 | } | |
2597 | else | |
2598 | { | |
2599 | bfd_putl16 ((bfd_vma) bin, frag); | |
2600 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2601 | fix_new_exp (frag_now, where, 4, &(op1->exp), FALSE, | |
2602 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
2603 | } | |
2604 | return 4; | |
2605 | } | |
2606 | else if (op1->mode == OP_REG) | |
2607 | { | |
2608 | if (op1->am == 3) | |
2609 | { | |
2610 | /* MOVA @Rsrc+, Rdst. */ | |
2611 | if (op2->mode != OP_REG) | |
2612 | { | |
2613 | if (error_message_return != NULL) | |
2614 | * error_message_return = _("expected register as second argument of %s"); | |
2615 | return 0; | |
2616 | } | |
2617 | ||
2618 | if (op2->reg == 2 || op2->reg == 3) | |
2619 | { | |
2620 | if (error_message_return != NULL) | |
2621 | * error_message_return = _("constant generator destination register found in %s"); | |
2622 | return 0; | |
2623 | } | |
2624 | ||
2625 | if (op1->reg == 2 || op1->reg == 3) | |
2626 | { | |
2627 | if (error_message_return != NULL) | |
2628 | * error_message_return = _("constant generator source register found in %s"); | |
2629 | return 0; | |
2630 | } | |
2631 | ||
2632 | bin |= 0x10 | (op1->reg << 8) | op2->reg; | |
2633 | frag = frag_more (2); | |
2634 | where = frag - frag_now->fr_literal; | |
2635 | bfd_putl16 ((bfd_vma) bin, frag); | |
2636 | return 2; | |
2637 | } | |
2638 | else if (op1->am == 2) | |
2639 | { | |
2640 | /* MOVA @Rsrc,Rdst */ | |
2641 | if (op2->mode != OP_REG) | |
2642 | { | |
2643 | if (error_message_return != NULL) | |
2644 | * error_message_return = _("expected register as second argument of %s"); | |
2645 | return 0; | |
2646 | } | |
2647 | ||
2648 | if (op2->reg == 2 || op2->reg == 3) | |
2649 | { | |
2650 | if (error_message_return != NULL) | |
2651 | * error_message_return = _("constant generator destination register found in %s"); | |
2652 | return 0; | |
2653 | } | |
2654 | ||
2655 | if (op1->reg == 2 || op1->reg == 3) | |
2656 | { | |
2657 | if (error_message_return != NULL) | |
2658 | * error_message_return = _("constant generator source register found in %s"); | |
2659 | return 0; | |
2660 | } | |
2661 | ||
2662 | bin |= (op1->reg << 8) | op2->reg; | |
2663 | frag = frag_more (2); | |
2664 | where = frag - frag_now->fr_literal; | |
2665 | bfd_putl16 ((bfd_vma) bin, frag); | |
2666 | return 2; | |
2667 | } | |
2668 | } | |
2669 | ||
2670 | if (error_message_return != NULL) | |
2671 | * error_message_return = _("unexpected addressing mode for %s"); | |
2672 | ||
2673 | return 0; | |
2674 | } | |
2675 | ||
2213f746 NC |
2676 | #define NOP_CHECK_INTERRUPT (1 << 0) |
2677 | #define NOP_CHECK_CPU12 (1 << 1) | |
2678 | #define NOP_CHECK_CPU19 (1 << 2) | |
2679 | ||
2680 | static signed int check_for_nop = 0; | |
65d7bab5 | 2681 | |
638d3803 NC |
2682 | #define is_opcode(NAME) (strcmp (opcode->name, NAME) == 0) |
2683 | ||
35ba4bc0 JL |
2684 | /* is_{e,d}int only check the explicit enabling/disabling of interrupts. |
2685 | For MOV insns, more sophisticated processing is needed to determine if they | |
2686 | result in enabling/disabling interrupts. */ | |
2687 | #define is_dint(OPCODE, BIN) ((strcmp (OPCODE, "dint") == 0) \ | |
2688 | || ((strcmp (OPCODE, "bic") == 0) \ | |
2689 | && BIN == 0xc232) \ | |
2690 | || ((strcmp (OPCODE, "clr") == 0) \ | |
2691 | && BIN == 0x4302)) | |
2692 | ||
2693 | #define is_eint(OPCODE, BIN) ((strcmp (OPCODE, "eint") == 0) \ | |
2694 | || ((strcmp (OPCODE, "bis") == 0) \ | |
2695 | && BIN == 0xd232)) | |
2696 | ||
2697 | const char * const INSERT_NOP_BEFORE_EINT = "NOP inserted here, before an interrupt enable instruction"; | |
2698 | const char * const INSERT_NOP_AFTER_DINT = "NOP inserted here, after an interrupt disable instruction"; | |
2699 | const char * const INSERT_NOP_AFTER_EINT = "NOP inserted here, after an interrupt enable instruction"; | |
2700 | const char * const INSERT_NOP_BEFORE_UNKNOWN = "NOP inserted here, before this interrupt state change"; | |
2701 | const char * const INSERT_NOP_AFTER_UNKNOWN ="NOP inserted here, after the instruction that changed interrupt state"; | |
2702 | const char * const INSERT_NOP_AT_EOF = "NOP inserted after the interrupt state change at the end of the file"; | |
2703 | ||
2704 | const char * const WARN_NOP_BEFORE_EINT = "a NOP might be needed here, before an interrupt enable instruction"; | |
2705 | const char * const WARN_NOP_AFTER_DINT = "a NOP might be needed here, after an interrupt disable instruction"; | |
2706 | const char * const WARN_NOP_AFTER_EINT = "a NOP might be needed here, after an interrupt enable instruction"; | |
2707 | const char * const WARN_NOP_BEFORE_UNKNOWN = "a NOP might be needed here, before this interrupt state change"; | |
2708 | const char * const WARN_NOP_AFTER_UNKNOWN = "a NOP might also be needed here, after the instruction that changed interrupt state"; | |
2709 | const char * const WARN_NOP_AT_EOF = "a NOP might be needed after the interrupt state change at the end of the file"; | |
2710 | ||
2711 | static void | |
2712 | gen_nop (void) | |
2713 | { | |
2714 | char *frag; | |
2715 | frag = frag_more (2); | |
2716 | bfd_putl16 ((bfd_vma) 0x4303 /* NOP */, frag); | |
2717 | dwarf2_emit_insn (2); | |
2718 | } | |
2719 | ||
2720 | /* Insert/inform about adding a NOP if this insn enables interrupts. */ | |
5d5b0bd3 | 2721 | |
35ba4bc0 JL |
2722 | static void |
2723 | warn_eint_nop (bfd_boolean prev_insn_is_nop, bfd_boolean prev_insn_is_dint) | |
2724 | { | |
2725 | if (prev_insn_is_nop | |
d5579774 JL |
2726 | /* If the last insn was a DINT, we will have already warned that a NOP is |
2727 | required after it. */ | |
35ba4bc0 JL |
2728 | || prev_insn_is_dint |
2729 | /* 430 ISA does not require a NOP before EINT. */ | |
2730 | || (! target_is_430x ())) | |
2731 | return; | |
5d5b0bd3 | 2732 | |
35ba4bc0 JL |
2733 | if (gen_interrupt_nops) |
2734 | { | |
2735 | gen_nop (); | |
2736 | if (warn_interrupt_nops) | |
2737 | as_warn (_(INSERT_NOP_BEFORE_EINT)); | |
2738 | } | |
2739 | else if (warn_interrupt_nops) | |
2740 | as_warn (_(WARN_NOP_BEFORE_EINT)); | |
2741 | } | |
2742 | ||
2743 | /* Use when unsure what effect the insn will have on the interrupt status, | |
2744 | to insert/warn about adding a NOP before the current insn. */ | |
5d5b0bd3 | 2745 | |
35ba4bc0 | 2746 | static void |
d5579774 JL |
2747 | warn_unsure_interrupt (bfd_boolean prev_insn_is_nop, |
2748 | bfd_boolean prev_insn_is_dint) | |
35ba4bc0 | 2749 | { |
d5579774 JL |
2750 | if (prev_insn_is_nop |
2751 | /* If the last insn was a DINT, we will have already warned that a NOP is | |
2752 | required after it. */ | |
2753 | || prev_insn_is_dint | |
2754 | /* 430 ISA does not require a NOP before EINT or DINT. */ | |
2755 | || (! target_is_430x ())) | |
2756 | return; | |
5d5b0bd3 | 2757 | |
35ba4bc0 JL |
2758 | if (gen_interrupt_nops) |
2759 | { | |
2760 | gen_nop (); | |
2761 | if (warn_interrupt_nops) | |
2762 | as_warn (_(INSERT_NOP_BEFORE_UNKNOWN)); | |
2763 | } | |
2764 | else if (warn_interrupt_nops) | |
2765 | as_warn (_(WARN_NOP_BEFORE_UNKNOWN)); | |
2766 | } | |
2767 | ||
b18c562e NC |
2768 | /* Parse instruction operands. |
2769 | Return binary opcode. */ | |
2770 | ||
2771 | static unsigned int | |
2772 | msp430_operands (struct msp430_opcode_s * opcode, char * line) | |
2469cfa2 | 2773 | { |
b18c562e | 2774 | int bin = opcode->bin_opcode; /* Opcode mask. */ |
13761a11 | 2775 | int insn_length = 0; |
b18c562e NC |
2776 | char l1[MAX_OP_LEN], l2[MAX_OP_LEN]; |
2777 | char *frag; | |
2bfa0cdf | 2778 | char *end; |
b18c562e NC |
2779 | int where; |
2780 | struct msp430_operand_s op1, op2; | |
2781 | int res = 0; | |
2782 | static short ZEROS = 0; | |
00b32ff2 | 2783 | bfd_boolean byte_op, imm_op; |
13761a11 NC |
2784 | int op_length = 0; |
2785 | int fmt; | |
2786 | int extended = 0x1800; | |
2787 | bfd_boolean extended_op = FALSE; | |
2788 | bfd_boolean addr_op; | |
2789 | const char * error_message; | |
2790 | static signed int repeat_count = 0; | |
927f2d25 | 2791 | static bfd_boolean prev_insn_is_nop = FALSE; |
35ba4bc0 JL |
2792 | static bfd_boolean prev_insn_is_dint = FALSE; |
2793 | static bfd_boolean prev_insn_is_eint = FALSE; | |
2794 | /* We might decide before the end of the function that the current insn is | |
2795 | equivalent to DINT/EINT. */ | |
2796 | bfd_boolean this_insn_is_dint = FALSE; | |
2797 | bfd_boolean this_insn_is_eint = FALSE; | |
13761a11 | 2798 | bfd_boolean fix_emitted; |
2469cfa2 | 2799 | |
b18c562e NC |
2800 | /* Opcode is the one from opcodes table |
2801 | line contains something like | |
2802 | [.w] @r2+, 5(R1) | |
2803 | or | |
2804 | .b @r2+, 5(R1). */ | |
2469cfa2 | 2805 | |
00b32ff2 | 2806 | byte_op = FALSE; |
38d77545 NC |
2807 | addr_op = FALSE; |
2808 | if (*line == '.') | |
2469cfa2 | 2809 | { |
38d77545 NC |
2810 | bfd_boolean check = FALSE; |
2811 | ++ line; | |
2812 | ||
2813 | switch (TOLOWER (* line)) | |
2814 | { | |
2815 | case 'b': | |
2816 | /* Byte operation. */ | |
2817 | bin |= BYTE_OPERATION; | |
00b32ff2 | 2818 | byte_op = TRUE; |
38d77545 NC |
2819 | check = TRUE; |
2820 | break; | |
2821 | ||
2822 | case 'a': | |
2823 | /* "Address" ops work on 20-bit values. */ | |
2824 | addr_op = TRUE; | |
2825 | bin |= BYTE_OPERATION; | |
2826 | check = TRUE; | |
2827 | break; | |
2828 | ||
2829 | case 'w': | |
2830 | /* Word operation - this is the default. */ | |
2831 | check = TRUE; | |
2832 | break; | |
2833 | ||
2834 | case 0: | |
2835 | case ' ': | |
2836 | case '\n': | |
2837 | case '\r': | |
2838 | as_warn (_("no size modifier after period, .w assumed")); | |
2839 | break; | |
2840 | ||
2841 | default: | |
2842 | as_bad (_("unrecognised instruction size modifier .%c"), | |
2843 | * line); | |
2844 | return 0; | |
2845 | } | |
2846 | ||
2847 | if (check) | |
2848 | { | |
2849 | ++ line; | |
2850 | ||
2851 | } | |
2469cfa2 NC |
2852 | } |
2853 | ||
38d77545 | 2854 | if (*line && ! ISSPACE (*line)) |
13761a11 | 2855 | { |
38d77545 NC |
2856 | as_bad (_("junk found after instruction: %s.%s"), |
2857 | opcode->name, line); | |
2858 | return 0; | |
13761a11 | 2859 | } |
13761a11 | 2860 | |
38d77545 NC |
2861 | /* Catch the case where the programmer has used a ".a" size modifier on an |
2862 | instruction that does not support it. Look for an alternative extended | |
2863 | instruction that has the same name without the period. Eg: "add.a" | |
2864 | becomes "adda". Although this not an officially supported way of | |
33eaf5de | 2865 | specifying instruction aliases other MSP430 assemblers allow it. So we |
38d77545 NC |
2866 | support it for compatibility purposes. */ |
2867 | if (addr_op && opcode->fmt >= 0) | |
2868 | { | |
f86f5863 | 2869 | const char * old_name = opcode->name; |
38d77545 NC |
2870 | char real_name[32]; |
2871 | ||
2872 | sprintf (real_name, "%sa", old_name); | |
629310ab | 2873 | opcode = str_hash_find (msp430_hash, real_name); |
38d77545 NC |
2874 | if (opcode == NULL) |
2875 | { | |
2876 | as_bad (_("instruction %s.a does not exist"), old_name); | |
2877 | return 0; | |
2878 | } | |
2879 | #if 0 /* Enable for debugging. */ | |
2880 | as_warn ("treating %s.a as %s", old_name, real_name); | |
2881 | #endif | |
2882 | addr_op = FALSE; | |
2883 | bin = opcode->bin_opcode; | |
2884 | } | |
2469cfa2 | 2885 | |
13761a11 NC |
2886 | if (opcode->fmt != -1 |
2887 | && opcode->insn_opnumb | |
2888 | && (!*line || *line == '\n')) | |
2469cfa2 | 2889 | { |
992a06ee AM |
2890 | as_bad (ngettext ("instruction %s requires %d operand", |
2891 | "instruction %s requires %d operands", | |
2892 | opcode->insn_opnumb), | |
b18c562e NC |
2893 | opcode->name, opcode->insn_opnumb); |
2894 | return 0; | |
2895 | } | |
2469cfa2 | 2896 | |
b18c562e NC |
2897 | memset (l1, 0, sizeof (l1)); |
2898 | memset (l2, 0, sizeof (l2)); | |
2899 | memset (&op1, 0, sizeof (op1)); | |
2900 | memset (&op2, 0, sizeof (op2)); | |
2469cfa2 | 2901 | |
00b32ff2 | 2902 | imm_op = FALSE; |
2469cfa2 | 2903 | |
13761a11 NC |
2904 | if ((fmt = opcode->fmt) < 0) |
2905 | { | |
638d3803 | 2906 | if (! target_is_430x ()) |
13761a11 NC |
2907 | { |
2908 | as_bad (_("instruction %s requires MSP430X mcu"), | |
2909 | opcode->name); | |
2910 | return 0; | |
2911 | } | |
3739860c | 2912 | |
13761a11 NC |
2913 | fmt = (-fmt) - 1; |
2914 | extended_op = TRUE; | |
2915 | } | |
2916 | ||
2917 | if (repeat_count) | |
2918 | { | |
2919 | /* If requested set the extended instruction repeat count. */ | |
2920 | if (extended_op) | |
2921 | { | |
2922 | if (repeat_count > 0) | |
2923 | extended |= (repeat_count - 1); | |
2924 | else | |
2925 | extended |= (1 << 7) | (- repeat_count); | |
2926 | } | |
2927 | else | |
2928 | as_bad (_("unable to repeat %s insn"), opcode->name); | |
2929 | ||
2930 | repeat_count = 0; | |
2931 | } | |
2932 | ||
35ba4bc0 JL |
2933 | /* The previous instruction set this flag if it wants to check if this insn |
2934 | is a NOP. */ | |
2213f746 | 2935 | if (check_for_nop) |
b18c562e | 2936 | { |
2213f746 | 2937 | if (! is_opcode ("nop")) |
2469cfa2 | 2938 | { |
2213f746 | 2939 | do |
65d7bab5 | 2940 | { |
2213f746 | 2941 | switch (check_for_nop & - check_for_nop) |
65d7bab5 | 2942 | { |
2213f746 | 2943 | case NOP_CHECK_INTERRUPT: |
35ba4bc0 JL |
2944 | /* NOP_CHECK_INTERRUPT rules: |
2945 | 1. 430 and 430x ISA require a NOP after DINT. | |
2946 | 2. Only the 430x ISA requires NOP before EINT (this has | |
2947 | been dealt with in the previous call to this function). | |
2948 | 3. Only the 430x ISA requires NOP after every EINT. | |
2949 | CPU42 errata. */ | |
2950 | if (gen_interrupt_nops || warn_interrupt_nops) | |
65d7bab5 | 2951 | { |
35ba4bc0 JL |
2952 | if (prev_insn_is_dint) |
2953 | { | |
2954 | if (gen_interrupt_nops) | |
2955 | { | |
2956 | gen_nop (); | |
2957 | if (warn_interrupt_nops) | |
2958 | as_warn (_(INSERT_NOP_AFTER_DINT)); | |
2959 | } | |
2960 | else | |
2961 | as_warn (_(WARN_NOP_AFTER_DINT)); | |
2962 | } | |
2963 | else if (prev_insn_is_eint) | |
2964 | { | |
2965 | if (gen_interrupt_nops) | |
2966 | { | |
2967 | gen_nop (); | |
2968 | if (warn_interrupt_nops) | |
2969 | as_warn (_(INSERT_NOP_AFTER_EINT)); | |
2970 | } | |
2971 | else | |
2972 | as_warn (_(WARN_NOP_AFTER_EINT)); | |
2973 | } | |
2974 | /* If we get here it's because the last instruction was | |
2975 | determined to either disable or enable interrupts, but | |
2976 | we're not sure which. | |
2977 | We have no information yet about what effect the | |
2978 | current instruction has on interrupts, that has to be | |
2979 | sorted out later. | |
2980 | The last insn may have required a NOP after it, so we | |
2981 | deal with that now. */ | |
65d7bab5 | 2982 | else |
35ba4bc0 JL |
2983 | { |
2984 | if (gen_interrupt_nops) | |
2985 | { | |
2986 | gen_nop (); | |
2987 | if (warn_interrupt_nops) | |
2988 | as_warn (_(INSERT_NOP_AFTER_UNKNOWN)); | |
2989 | } | |
2990 | else | |
2991 | /* warn_unsure_interrupt was called on the previous | |
2992 | insn. */ | |
2993 | as_warn (_(WARN_NOP_AFTER_UNKNOWN)); | |
2994 | } | |
65d7bab5 | 2995 | } |
2213f746 NC |
2996 | break; |
2997 | ||
2998 | case NOP_CHECK_CPU12: | |
2999 | if (silicon_errata_warn & SILICON_ERRATA_CPU12) | |
de194d85 | 3000 | as_warn (_("CPU12: CMP/BIT with PC destination ignores next instruction")); |
2213f746 NC |
3001 | |
3002 | if (silicon_errata_fix & SILICON_ERRATA_CPU12) | |
35ba4bc0 | 3003 | gen_nop (); |
2213f746 NC |
3004 | break; |
3005 | ||
3006 | case NOP_CHECK_CPU19: | |
3007 | if (silicon_errata_warn & SILICON_ERRATA_CPU19) | |
3008 | as_warn (_("CPU19: Instruction setting CPUOFF must be followed by a NOP")); | |
65d7bab5 | 3009 | |
2213f746 | 3010 | if (silicon_errata_fix & SILICON_ERRATA_CPU19) |
35ba4bc0 | 3011 | gen_nop (); |
2213f746 NC |
3012 | break; |
3013 | ||
3014 | default: | |
3015 | as_bad (_("internal error: unknown nop check state")); | |
3016 | break; | |
3017 | } | |
3018 | check_for_nop &= ~ (check_for_nop & - check_for_nop); | |
3019 | } | |
3020 | while (check_for_nop); | |
2213f746 | 3021 | } |
2213f746 NC |
3022 | check_for_nop = 0; |
3023 | } | |
3024 | ||
3025 | switch (fmt) | |
3026 | { | |
5d5b0bd3 JL |
3027 | case 0: |
3028 | /* Emulated. */ | |
2213f746 NC |
3029 | switch (opcode->insn_opnumb) |
3030 | { | |
3031 | case 0: | |
927f2d25 | 3032 | if (is_opcode ("eint")) |
35ba4bc0 | 3033 | warn_eint_nop (prev_insn_is_nop, prev_insn_is_dint); |
65d7bab5 | 3034 | |
b18c562e | 3035 | /* Set/clear bits instructions. */ |
13761a11 NC |
3036 | if (extended_op) |
3037 | { | |
3038 | if (!addr_op) | |
3039 | extended |= BYTE_OPERATION; | |
3040 | ||
3041 | /* Emit the extension word. */ | |
3042 | insn_length += 2; | |
65d7bab5 | 3043 | frag = frag_more (2); |
13761a11 NC |
3044 | bfd_putl16 (extended, frag); |
3045 | } | |
638d3803 | 3046 | |
13761a11 | 3047 | insn_length += 2; |
65d7bab5 | 3048 | frag = frag_more (2); |
b18c562e | 3049 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 | 3050 | dwarf2_emit_insn (insn_length); |
b18c562e | 3051 | break; |
13761a11 | 3052 | |
b18c562e NC |
3053 | case 1: |
3054 | /* Something which works with destination operand. */ | |
3055 | line = extract_operand (line, l1, sizeof (l1)); | |
13761a11 | 3056 | res = msp430_dstoperand (&op1, l1, opcode->bin_opcode, extended_op, TRUE); |
b18c562e NC |
3057 | if (res) |
3058 | break; | |
2469cfa2 | 3059 | |
65d7bab5 NC |
3060 | bin |= (op1.reg | (op1.am << 7)); |
3061 | ||
2213f746 NC |
3062 | /* If the PC is the destination... */ |
3063 | if (op1.am == 0 && op1.reg == 0 | |
3064 | /* ... and the opcode alters the SR. */ | |
3065 | && !(is_opcode ("bic") || is_opcode ("bis") || is_opcode ("mov") | |
3066 | || is_opcode ("bicx") || is_opcode ("bisx") || is_opcode ("movx"))) | |
65d7bab5 | 3067 | { |
2213f746 | 3068 | if (silicon_errata_fix & SILICON_ERRATA_CPU11) |
de194d85 | 3069 | as_bad (_("CPU11: PC is destination of SR altering instruction")); |
2213f746 | 3070 | else if (silicon_errata_warn & SILICON_ERRATA_CPU11) |
de194d85 | 3071 | as_warn (_("CPU11: PC is destination of SR altering instruction")); |
65d7bab5 | 3072 | } |
2213f746 NC |
3073 | |
3074 | /* If the status register is the destination... */ | |
3075 | if (op1.am == 0 && op1.reg == 2 | |
3076 | /* ... and the opcode alters the SR. */ | |
3077 | && (is_opcode ("adc") || is_opcode ("dec") || is_opcode ("decd") | |
3078 | || is_opcode ("inc") || is_opcode ("incd") || is_opcode ("inv") | |
3079 | || is_opcode ("sbc") || is_opcode ("sxt") | |
3080 | || is_opcode ("adcx") || is_opcode ("decx") || is_opcode ("decdx") | |
3081 | || is_opcode ("incx") || is_opcode ("incdx") || is_opcode ("invx") | |
3082 | || is_opcode ("sbcx") | |
3083 | )) | |
3084 | { | |
3085 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
de194d85 | 3086 | as_bad (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 | 3087 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) |
de194d85 | 3088 | as_warn (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 NC |
3089 | } |
3090 | ||
13761a11 | 3091 | /* Compute the entire instruction length, in bytes. */ |
65d7bab5 NC |
3092 | op_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2); |
3093 | insn_length += op_length; | |
3094 | frag = frag_more (op_length); | |
b18c562e | 3095 | where = frag - frag_now->fr_literal; |
38d77545 | 3096 | |
13761a11 | 3097 | if (extended_op) |
2469cfa2 | 3098 | { |
13761a11 NC |
3099 | if (!addr_op) |
3100 | extended |= BYTE_OPERATION; | |
3101 | ||
3102 | if (op1.ol != 0 && ((extended & 0xf) != 0)) | |
3103 | { | |
3104 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3105 | extended &= ~ 0xf; | |
3106 | } | |
38d77545 | 3107 | |
13761a11 NC |
3108 | if (op1.mode == OP_EXP) |
3109 | { | |
3110 | if (op1.exp.X_op == O_constant) | |
3111 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
3112 | ||
e66c3c25 | 3113 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3114 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3115 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3116 | else | |
3117 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3118 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3119 | } | |
38d77545 | 3120 | |
13761a11 NC |
3121 | /* Emit the extension word. */ |
3122 | bfd_putl16 (extended, frag); | |
3123 | frag += 2; | |
3124 | where += 2; | |
3125 | } | |
3126 | ||
13761a11 NC |
3127 | bfd_putl16 ((bfd_vma) bin, frag); |
3128 | frag += 2; | |
3129 | where += 2; | |
3130 | ||
3131 | if (op1.mode == OP_EXP) | |
3132 | { | |
3133 | if (op1.exp.X_op == O_constant) | |
3134 | { | |
3135 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3136 | } | |
2469cfa2 | 3137 | else |
13761a11 NC |
3138 | { |
3139 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3140 | ||
3141 | if (!extended_op) | |
3142 | { | |
3143 | if (op1.reg) | |
3144 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 3145 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3146 | else |
3147 | fix_new_exp (frag_now, where, 2, | |
3148 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3149 | } | |
3150 | } | |
3151 | } | |
3152 | ||
13761a11 | 3153 | dwarf2_emit_insn (insn_length); |
b18c562e | 3154 | break; |
2469cfa2 | 3155 | |
b18c562e | 3156 | case 2: |
13761a11 NC |
3157 | /* Shift instruction. */ |
3158 | line = extract_operand (line, l1, sizeof (l1)); | |
3159 | strncpy (l2, l1, sizeof (l2)); | |
3160 | l2[sizeof (l2) - 1] = '\0'; | |
3161 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, TRUE); | |
3162 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, extended_op, TRUE); | |
3163 | ||
3164 | if (res) | |
3165 | break; /* An error occurred. All warnings were done before. */ | |
3166 | ||
3167 | insn_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2) + (op2.ol * 2); | |
3168 | frag = frag_more (insn_length); | |
3169 | where = frag - frag_now->fr_literal; | |
3170 | ||
d1706f38 NC |
3171 | if (target_is_430xv2 () |
3172 | && op1.mode == OP_REG | |
38d77545 | 3173 | && op1.reg == 0 |
638d3803 NC |
3174 | && (is_opcode ("rlax") |
3175 | || is_opcode ("rlcx") | |
3176 | || is_opcode ("rla") | |
3177 | || is_opcode ("rlc"))) | |
3178 | { | |
3179 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 3180 | break; |
638d3803 | 3181 | } |
38d77545 | 3182 | |
2213f746 NC |
3183 | /* If the status register is the destination... */ |
3184 | if (op1.am == 0 && op1.reg == 2 | |
3185 | /* ... and the opcode alters the SR. */ | |
3186 | && (is_opcode ("rla") || is_opcode ("rlc") | |
3187 | || is_opcode ("rlax") || is_opcode ("rlcx") | |
35ba4bc0 JL |
3188 | || is_opcode ("sxt") || is_opcode ("sxtx") |
3189 | || is_opcode ("swpb") | |
2213f746 NC |
3190 | )) |
3191 | { | |
3192 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
de194d85 | 3193 | as_bad (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 | 3194 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) |
de194d85 | 3195 | as_warn (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 NC |
3196 | } |
3197 | ||
13761a11 NC |
3198 | if (extended_op) |
3199 | { | |
3200 | if (!addr_op) | |
3201 | extended |= BYTE_OPERATION; | |
3202 | ||
3203 | if ((op1.ol != 0 || op2.ol != 0) && ((extended & 0xf) != 0)) | |
3204 | { | |
3205 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3206 | extended &= ~ 0xf; | |
3207 | } | |
38d77545 | 3208 | |
13761a11 NC |
3209 | if (op1.mode == OP_EXP) |
3210 | { | |
3211 | if (op1.exp.X_op == O_constant) | |
3212 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
3213 | ||
e66c3c25 | 3214 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3215 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3216 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3217 | else | |
3218 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3219 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3220 | } | |
3221 | ||
3222 | if (op2.mode == OP_EXP) | |
3223 | { | |
3224 | if (op2.exp.X_op == O_constant) | |
3225 | extended |= (op2.exp.X_add_number >> 16) & 0xf; | |
3226 | ||
3227 | else if (op1.mode == OP_EXP) | |
3228 | fix_new_exp (frag_now, where, 8, &(op2.exp), FALSE, | |
3229 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_ODST | |
3230 | : BFD_RELOC_MSP430X_PCR20_EXT_ODST); | |
3231 | else | |
3232 | fix_new_exp (frag_now, where, 6, &(op2.exp), FALSE, | |
3233 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_DST | |
3234 | : BFD_RELOC_MSP430X_PCR20_EXT_DST); | |
3235 | } | |
3236 | ||
3237 | /* Emit the extension word. */ | |
3238 | bfd_putl16 (extended, frag); | |
3239 | frag += 2; | |
3240 | where += 2; | |
3241 | } | |
3242 | ||
3243 | bin |= (op2.reg | (op1.reg << 8) | (op1.am << 4) | (op2.am << 7)); | |
3244 | bfd_putl16 ((bfd_vma) bin, frag); | |
3245 | frag += 2; | |
3246 | where += 2; | |
3247 | ||
3248 | if (op1.mode == OP_EXP) | |
3249 | { | |
3250 | if (op1.exp.X_op == O_constant) | |
3251 | { | |
3252 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3253 | } | |
3254 | else | |
3255 | { | |
3256 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3257 | ||
3258 | if (!extended_op) | |
3259 | { | |
e66c3c25 | 3260 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 3261 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3262 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3263 | else |
3264 | fix_new_exp (frag_now, where, 2, | |
3265 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3266 | } | |
3267 | } | |
3268 | frag += 2; | |
3269 | where += 2; | |
3270 | } | |
3271 | ||
3272 | if (op2.mode == OP_EXP) | |
3273 | { | |
3274 | if (op2.exp.X_op == O_constant) | |
3275 | { | |
3276 | bfd_putl16 (op2.exp.X_add_number & 0xffff, frag); | |
3277 | } | |
3278 | else | |
3279 | { | |
3280 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3281 | ||
3282 | if (!extended_op) | |
3283 | { | |
3284 | if (op2.reg) /* Not PC relative. */ | |
3285 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 3286 | &(op2.exp), FALSE, CHECK_RELOC_MSP430 (op2)); |
13761a11 NC |
3287 | else |
3288 | fix_new_exp (frag_now, where, 2, | |
3289 | &(op2.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3290 | } | |
3291 | } | |
3292 | } | |
3293 | ||
3294 | dwarf2_emit_insn (insn_length); | |
3295 | break; | |
3296 | ||
3297 | case 3: | |
3298 | /* Branch instruction => mov dst, r0. */ | |
3299 | if (extended_op) | |
3300 | { | |
3301 | as_bad ("Internal error: state 0/3 not coded for extended instructions"); | |
65d7bab5 | 3302 | break; |
13761a11 NC |
3303 | } |
3304 | ||
3305 | line = extract_operand (line, l1, sizeof (l1)); | |
3306 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, FALSE); | |
3307 | if (res) | |
3308 | break; | |
3309 | ||
00b32ff2 NC |
3310 | byte_op = FALSE; |
3311 | imm_op = FALSE; | |
13761a11 NC |
3312 | bin |= ((op1.reg << 8) | (op1.am << 4)); |
3313 | op_length = 2 + 2 * op1.ol; | |
3314 | frag = frag_more (op_length); | |
3315 | where = frag - frag_now->fr_literal; | |
3316 | bfd_putl16 ((bfd_vma) bin, frag); | |
3317 | ||
3318 | if (op1.mode == OP_EXP) | |
3319 | { | |
3320 | if (op1.exp.X_op == O_constant) | |
3321 | { | |
3322 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag + 2); | |
3323 | } | |
3324 | else | |
3325 | { | |
3326 | where += 2; | |
38d77545 | 3327 | |
13761a11 NC |
3328 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); |
3329 | ||
e66c3c25 | 3330 | if (op1.reg || op1.am == 3) |
13761a11 | 3331 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3332 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3333 | else |
3334 | fix_new_exp (frag_now, where, 2, | |
3335 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3336 | } | |
3337 | } | |
3338 | ||
3339 | dwarf2_emit_insn (insn_length + op_length); | |
3340 | break; | |
3341 | ||
3342 | case 4: | |
3343 | /* CALLA instructions. */ | |
3344 | fix_emitted = FALSE; | |
3345 | ||
3346 | line = extract_operand (line, l1, sizeof (l1)); | |
00b32ff2 | 3347 | imm_op = FALSE; |
13761a11 NC |
3348 | |
3349 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, | |
3350 | extended_op, FALSE); | |
3351 | if (res) | |
3352 | break; | |
3353 | ||
00b32ff2 | 3354 | byte_op = FALSE; |
13761a11 NC |
3355 | |
3356 | op_length = 2 + 2 * op1.ol; | |
3357 | frag = frag_more (op_length); | |
3358 | where = frag - frag_now->fr_literal; | |
3359 | ||
3360 | if (imm_op) | |
3361 | { | |
3362 | if (op1.am == 3) | |
3363 | { | |
3364 | bin |= 0xb0; | |
3365 | ||
3366 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3367 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
3368 | fix_emitted = TRUE; | |
3369 | } | |
3370 | else if (op1.am == 1) | |
3371 | { | |
3372 | if (op1.reg == 0) | |
3373 | { | |
3374 | bin |= 0x90; | |
3375 | ||
3376 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3377 | BFD_RELOC_MSP430X_PCR20_CALL); | |
3378 | fix_emitted = TRUE; | |
3379 | } | |
3380 | else | |
3381 | bin |= 0x50 | op1.reg; | |
3382 | } | |
3383 | else if (op1.am == 0) | |
3384 | bin |= 0x40 | op1.reg; | |
3385 | } | |
3386 | else if (op1.am == 1) | |
3387 | { | |
3388 | bin |= 0x80; | |
3389 | ||
3390 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3391 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
3392 | fix_emitted = TRUE; | |
3393 | } | |
3394 | else if (op1.am == 2) | |
3395 | bin |= 0x60 | op1.reg; | |
3396 | else if (op1.am == 3) | |
3397 | bin |= 0x70 | op1.reg; | |
38d77545 | 3398 | |
13761a11 NC |
3399 | bfd_putl16 ((bfd_vma) bin, frag); |
3400 | ||
3401 | if (op1.mode == OP_EXP) | |
3402 | { | |
3403 | if (op1.ol != 1) | |
3404 | { | |
3405 | as_bad ("Internal error: unexpected CALLA instruction length: %d\n", op1.ol); | |
65d7bab5 | 3406 | break; |
13761a11 NC |
3407 | } |
3408 | ||
3409 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
3410 | ||
3411 | if (! fix_emitted) | |
3412 | fix_new_exp (frag_now, where + 2, 2, | |
3413 | &(op1.exp), FALSE, BFD_RELOC_16); | |
3414 | } | |
3415 | ||
3416 | dwarf2_emit_insn (insn_length + op_length); | |
3417 | break; | |
3418 | ||
3419 | case 5: | |
b18c562e | 3420 | { |
13761a11 NC |
3421 | int n; |
3422 | int reg; | |
3423 | ||
3424 | /* [POP|PUSH]M[.A] #N, Rd */ | |
b18c562e | 3425 | line = extract_operand (line, l1, sizeof (l1)); |
13761a11 | 3426 | line = extract_operand (line, l2, sizeof (l2)); |
2469cfa2 | 3427 | |
13761a11 NC |
3428 | if (*l1 != '#') |
3429 | { | |
638d3803 | 3430 | as_bad (_("expected #n as first argument of %s"), opcode->name); |
65d7bab5 | 3431 | break; |
13761a11 | 3432 | } |
2bfa0cdf NC |
3433 | end = parse_exp (l1 + 1, &(op1.exp)); |
3434 | if (end != NULL && *end != 0) | |
3435 | { | |
3436 | as_bad (_("extra characters '%s' at end of constant expression '%s'"), end, l1); | |
3437 | break; | |
3438 | } | |
13761a11 NC |
3439 | if (op1.exp.X_op != O_constant) |
3440 | { | |
33eaf5de | 3441 | as_bad (_("expected constant expression as first argument of %s"), |
13761a11 | 3442 | opcode->name); |
65d7bab5 | 3443 | break; |
13761a11 | 3444 | } |
2469cfa2 | 3445 | |
13761a11 NC |
3446 | if ((reg = check_reg (l2)) == -1) |
3447 | { | |
3448 | as_bad (_("expected register as second argument of %s"), | |
3449 | opcode->name); | |
65d7bab5 | 3450 | break; |
13761a11 | 3451 | } |
2469cfa2 | 3452 | |
13761a11 NC |
3453 | op_length = 2; |
3454 | frag = frag_more (op_length); | |
b18c562e | 3455 | where = frag - frag_now->fr_literal; |
13761a11 NC |
3456 | bin = opcode->bin_opcode; |
3457 | if (! addr_op) | |
3458 | bin |= 0x100; | |
3459 | n = op1.exp.X_add_number; | |
3460 | bin |= (n - 1) << 4; | |
638d3803 | 3461 | if (is_opcode ("pushm")) |
13761a11 NC |
3462 | bin |= reg; |
3463 | else | |
3464 | { | |
3465 | if (reg - n + 1 < 0) | |
3466 | { | |
3467 | as_bad (_("Too many registers popped")); | |
65d7bab5 | 3468 | break; |
13761a11 | 3469 | } |
638d3803 | 3470 | |
65d7bab5 | 3471 | /* CPU21 errata: cannot use POPM to restore the SR register. */ |
d1706f38 | 3472 | if (target_is_430xv2 () |
638d3803 NC |
3473 | && (reg - n + 1 < 3) |
3474 | && reg >= 2 | |
3475 | && is_opcode ("popm")) | |
3476 | { | |
3477 | as_bad (_("Cannot use POPM to restore the SR register")); | |
65d7bab5 | 3478 | break; |
638d3803 NC |
3479 | } |
3480 | ||
13761a11 NC |
3481 | bin |= (reg - n + 1); |
3482 | } | |
3483 | ||
b18c562e | 3484 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3485 | dwarf2_emit_insn (op_length); |
3486 | break; | |
3487 | } | |
3488 | ||
3489 | case 6: | |
3490 | { | |
3491 | int n; | |
3492 | int reg; | |
3493 | ||
3494 | /* Bit rotation instructions. RRCM, RRAM, RRUM, RLAM. */ | |
3495 | if (extended & 0xff) | |
3496 | { | |
3497 | as_bad (_("repeat count cannot be used with %s"), opcode->name); | |
65d7bab5 | 3498 | break; |
13761a11 NC |
3499 | } |
3500 | ||
3501 | line = extract_operand (line, l1, sizeof (l1)); | |
3502 | line = extract_operand (line, l2, sizeof (l2)); | |
3503 | ||
3504 | if (*l1 != '#') | |
3505 | { | |
3506 | as_bad (_("expected #n as first argument of %s"), opcode->name); | |
65d7bab5 | 3507 | break; |
13761a11 | 3508 | } |
2bfa0cdf NC |
3509 | end = parse_exp (l1 + 1, &(op1.exp)); |
3510 | if (end != NULL && *end != 0) | |
3511 | { | |
3512 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l1); | |
3513 | break; | |
3514 | } | |
13761a11 NC |
3515 | if (op1.exp.X_op != O_constant) |
3516 | { | |
33eaf5de | 3517 | as_bad (_("expected constant expression as first argument of %s"), |
13761a11 | 3518 | opcode->name); |
65d7bab5 | 3519 | break; |
13761a11 NC |
3520 | } |
3521 | n = op1.exp.X_add_number; | |
3522 | if (n > 4 || n < 1) | |
b18c562e | 3523 | { |
13761a11 NC |
3524 | as_bad (_("expected first argument of %s to be in the range 1-4"), |
3525 | opcode->name); | |
65d7bab5 | 3526 | break; |
13761a11 | 3527 | } |
b18c562e | 3528 | |
13761a11 NC |
3529 | if ((reg = check_reg (l2)) == -1) |
3530 | { | |
3531 | as_bad (_("expected register as second argument of %s"), | |
3532 | opcode->name); | |
65d7bab5 | 3533 | break; |
b18c562e NC |
3534 | } |
3535 | ||
d1706f38 | 3536 | if (target_is_430xv2 () && reg == 0) |
638d3803 NC |
3537 | { |
3538 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 3539 | break; |
638d3803 NC |
3540 | } |
3541 | ||
13761a11 NC |
3542 | op_length = 2; |
3543 | frag = frag_more (op_length); | |
3544 | where = frag - frag_now->fr_literal; | |
3545 | ||
3546 | bin = opcode->bin_opcode; | |
3547 | if (! addr_op) | |
3548 | bin |= 0x10; | |
3549 | bin |= (n - 1) << 10; | |
3550 | bin |= reg; | |
3551 | ||
3552 | bfd_putl16 ((bfd_vma) bin, frag); | |
3553 | dwarf2_emit_insn (op_length); | |
3554 | break; | |
3555 | } | |
3556 | ||
13761a11 NC |
3557 | case 8: |
3558 | { | |
3559 | bfd_boolean need_reloc = FALSE; | |
3560 | int n; | |
3561 | int reg; | |
3562 | ||
3563 | /* ADDA, CMPA and SUBA address instructions. */ | |
3564 | if (extended & 0xff) | |
3565 | { | |
3566 | as_bad (_("repeat count cannot be used with %s"), opcode->name); | |
65d7bab5 | 3567 | break; |
13761a11 NC |
3568 | } |
3569 | ||
3570 | line = extract_operand (line, l1, sizeof (l1)); | |
3571 | line = extract_operand (line, l2, sizeof (l2)); | |
3572 | ||
3573 | bin = opcode->bin_opcode; | |
3574 | ||
3575 | if (*l1 == '#') | |
3576 | { | |
2bfa0cdf NC |
3577 | end = parse_exp (l1 + 1, &(op1.exp)); |
3578 | if (end != NULL && *end != 0) | |
3579 | { | |
3580 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l1); | |
3581 | break; | |
3582 | } | |
13761a11 NC |
3583 | |
3584 | if (op1.exp.X_op == O_constant) | |
3585 | { | |
3586 | n = op1.exp.X_add_number; | |
3587 | if (n > 0xfffff || n < - (0x7ffff)) | |
3588 | { | |
3589 | as_bad (_("expected value of first argument of %s to fit into 20-bits"), | |
3590 | opcode->name); | |
65d7bab5 | 3591 | break; |
13761a11 NC |
3592 | } |
3593 | ||
3594 | bin |= ((n >> 16) & 0xf) << 8; | |
3595 | } | |
3596 | else | |
3597 | { | |
3598 | n = 0; | |
3599 | need_reloc = TRUE; | |
3600 | } | |
3601 | ||
3602 | op_length = 4; | |
3603 | } | |
3604 | else | |
3605 | { | |
3606 | if ((n = check_reg (l1)) == -1) | |
3607 | { | |
3608 | as_bad (_("expected register name or constant as first argument of %s"), | |
3609 | opcode->name); | |
65d7bab5 | 3610 | break; |
13761a11 NC |
3611 | } |
3612 | ||
3613 | bin |= (n << 8) | (1 << 6); | |
3614 | op_length = 2; | |
3615 | } | |
3616 | ||
3617 | if ((reg = check_reg (l2)) == -1) | |
3618 | { | |
3619 | as_bad (_("expected register as second argument of %s"), | |
3620 | opcode->name); | |
65d7bab5 | 3621 | break; |
13761a11 NC |
3622 | } |
3623 | ||
3624 | frag = frag_more (op_length); | |
3625 | where = frag - frag_now->fr_literal; | |
3626 | bin |= reg; | |
3627 | if (need_reloc) | |
3628 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3629 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
3630 | ||
3631 | bfd_putl16 ((bfd_vma) bin, frag); | |
3632 | if (op_length == 4) | |
3633 | bfd_putl16 ((bfd_vma) (n & 0xffff), frag + 2); | |
3634 | dwarf2_emit_insn (op_length); | |
b18c562e | 3635 | break; |
13761a11 | 3636 | } |
38d77545 | 3637 | |
13761a11 | 3638 | case 9: /* MOVA, BRA, RETA. */ |
00b32ff2 | 3639 | imm_op = FALSE; |
13761a11 | 3640 | bin = opcode->bin_opcode; |
b18c562e | 3641 | |
638d3803 | 3642 | if (is_opcode ("reta")) |
13761a11 NC |
3643 | { |
3644 | /* The RETA instruction does not take any arguments. | |
3645 | The implicit first argument is @SP+. | |
3646 | The implicit second argument is PC. */ | |
3647 | op1.mode = OP_REG; | |
3648 | op1.am = 3; | |
3649 | op1.reg = 1; | |
3650 | ||
3651 | op2.mode = OP_REG; | |
3652 | op2.reg = 0; | |
3653 | } | |
3654 | else | |
3655 | { | |
3656 | line = extract_operand (line, l1, sizeof (l1)); | |
3657 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, | |
3658 | &imm_op, extended_op, FALSE); | |
b18c562e | 3659 | |
638d3803 | 3660 | if (is_opcode ("bra")) |
13761a11 NC |
3661 | { |
3662 | /* This is the BRA synthetic instruction. | |
3663 | The second argument is always PC. */ | |
3664 | op2.mode = OP_REG; | |
3665 | op2.reg = 0; | |
3666 | } | |
3667 | else | |
3668 | { | |
3669 | line = extract_operand (line, l2, sizeof (l2)); | |
3670 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, | |
3671 | extended_op, TRUE); | |
3672 | } | |
38d77545 | 3673 | |
13761a11 NC |
3674 | if (res) |
3675 | break; /* Error occurred. All warnings were done before. */ | |
3676 | } | |
3677 | ||
3678 | /* Only a restricted subset of the normal MSP430 addressing modes | |
3679 | are supported here, so check for the ones that are allowed. */ | |
3680 | if ((op_length = try_encode_mova (imm_op, bin, & op1, & op2, | |
3681 | & error_message)) == 0) | |
2469cfa2 | 3682 | { |
13761a11 | 3683 | as_bad (error_message, opcode->name); |
65d7bab5 | 3684 | break; |
13761a11 NC |
3685 | } |
3686 | dwarf2_emit_insn (op_length); | |
3687 | break; | |
3688 | ||
3689 | case 10: /* RPT */ | |
3690 | line = extract_operand (line, l1, sizeof l1); | |
3691 | /* The RPT instruction only accepted immediates and registers. */ | |
3692 | if (*l1 == '#') | |
3693 | { | |
2bfa0cdf NC |
3694 | end = parse_exp (l1 + 1, &(op1.exp)); |
3695 | if (end != NULL && *end != 0) | |
3696 | { | |
3697 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l1); | |
3698 | break; | |
3699 | } | |
13761a11 NC |
3700 | if (op1.exp.X_op != O_constant) |
3701 | { | |
3702 | as_bad (_("expected constant value as argument to RPT")); | |
65d7bab5 | 3703 | break; |
13761a11 NC |
3704 | } |
3705 | if (op1.exp.X_add_number < 1 | |
3706 | || op1.exp.X_add_number > (1 << 4)) | |
3707 | { | |
3708 | as_bad (_("expected constant in the range 2..16")); | |
65d7bab5 | 3709 | break; |
13761a11 NC |
3710 | } |
3711 | ||
3712 | /* We silently accept and ignore a repeat count of 1. */ | |
3713 | if (op1.exp.X_add_number > 1) | |
3714 | repeat_count = op1.exp.X_add_number; | |
3715 | } | |
3716 | else | |
3717 | { | |
3718 | int reg; | |
b18c562e | 3719 | |
13761a11 NC |
3720 | if ((reg = check_reg (l1)) != -1) |
3721 | { | |
3722 | if (reg == 0) | |
3723 | as_warn (_("PC used as an argument to RPT")); | |
3724 | else | |
3725 | repeat_count = - reg; | |
3726 | } | |
2469cfa2 | 3727 | else |
13761a11 NC |
3728 | { |
3729 | as_bad (_("expected constant or register name as argument to RPT insn")); | |
65d7bab5 | 3730 | break; |
13761a11 | 3731 | } |
2469cfa2 | 3732 | } |
b18c562e | 3733 | break; |
13761a11 NC |
3734 | |
3735 | default: | |
33eaf5de | 3736 | as_bad (_("Illegal emulated instruction")); |
13761a11 | 3737 | break; |
2469cfa2 | 3738 | } |
b18c562e | 3739 | break; |
2469cfa2 | 3740 | |
35ba4bc0 JL |
3741 | /* FIXME: Emit warning when dest reg SR(R2) is addressed with .B or .A. |
3742 | From f5 ref man 6.3.3: | |
3743 | The 16-bit Status Register (SR, also called R2), used as a source or | |
3744 | destination register, can only be used in register mode addressed | |
3745 | with word instructions. */ | |
3746 | ||
b18c562e NC |
3747 | case 1: /* Format 1, double operand. */ |
3748 | line = extract_operand (line, l1, sizeof (l1)); | |
3749 | line = extract_operand (line, l2, sizeof (l2)); | |
13761a11 NC |
3750 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, TRUE); |
3751 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, extended_op, TRUE); | |
2469cfa2 | 3752 | |
b18c562e NC |
3753 | if (res) |
3754 | break; /* Error occurred. All warnings were done before. */ | |
2469cfa2 | 3755 | |
13761a11 | 3756 | if (extended_op |
638d3803 | 3757 | && is_opcode ("movx") |
13761a11 NC |
3758 | && addr_op |
3759 | && msp430_enable_relax) | |
3760 | { | |
3761 | /* This is the MOVX.A instruction. See if we can convert | |
3762 | it into the MOVA instruction instead. This saves 2 bytes. */ | |
3763 | if ((op_length = try_encode_mova (imm_op, 0x0000, & op1, & op2, | |
3764 | NULL)) != 0) | |
3765 | { | |
3766 | dwarf2_emit_insn (op_length); | |
3767 | break; | |
3768 | } | |
3769 | } | |
3770 | ||
65d7bab5 NC |
3771 | bin |= (op2.reg | (op1.reg << 8) | (op1.am << 4) | (op2.am << 7)); |
3772 | ||
2213f746 NC |
3773 | /* If the PC is the destination... */ |
3774 | if (op2.am == 0 && op2.reg == 0 | |
3775 | /* ... and the opcode alters the SR. */ | |
3776 | && !(is_opcode ("bic") || is_opcode ("bis") || is_opcode ("mov") | |
3777 | || is_opcode ("bicx") || is_opcode ("bisx") || is_opcode ("movx"))) | |
3778 | { | |
3779 | if (silicon_errata_fix & SILICON_ERRATA_CPU11) | |
de194d85 | 3780 | as_bad (_("CPU11: PC is destination of SR altering instruction")); |
2213f746 | 3781 | else if (silicon_errata_warn & SILICON_ERRATA_CPU11) |
de194d85 | 3782 | as_warn (_("CPU11: PC is destination of SR altering instruction")); |
2213f746 NC |
3783 | } |
3784 | ||
3785 | /* If the status register is the destination... */ | |
3786 | if (op2.am == 0 && op2.reg == 2 | |
3787 | /* ... and the opcode alters the SR. */ | |
3788 | && (is_opcode ("add") || is_opcode ("addc") || is_opcode ("and") | |
3789 | || is_opcode ("dadd") || is_opcode ("sub") || is_opcode ("subc") | |
3790 | || is_opcode ("xor") | |
3791 | || is_opcode ("addx") || is_opcode ("addcx") || is_opcode ("andx") | |
3792 | || is_opcode ("daddx") || is_opcode ("subx") || is_opcode ("subcx") | |
3793 | || is_opcode ("xorx") | |
3794 | )) | |
3795 | { | |
3796 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
de194d85 | 3797 | as_bad (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 | 3798 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) |
de194d85 | 3799 | as_warn (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 | 3800 | } |
65d7bab5 | 3801 | |
35ba4bc0 JL |
3802 | /* Chain these checks for SR manipulations so we can warn if they are not |
3803 | caught. */ | |
2213f746 NC |
3804 | if (((is_opcode ("bis") && bin == 0xd032) |
3805 | || (is_opcode ("mov") && bin == 0x4032) | |
3806 | || (is_opcode ("xor") && bin == 0xe032)) | |
3807 | && op1.mode == OP_EXP | |
3808 | && op1.exp.X_op == O_constant | |
3809 | && (op1.exp.X_add_number & 0x10) == 0x10) | |
3810 | check_for_nop |= NOP_CHECK_CPU19; | |
35ba4bc0 JL |
3811 | else if ((is_opcode ("mov") && op2.mode == OP_REG && op2.reg == 2)) |
3812 | { | |
3813 | /* Any MOV with the SR as the destination either enables or disables | |
3814 | interrupts. */ | |
3815 | if (op1.mode == OP_EXP | |
3816 | && op1.exp.X_op == O_constant) | |
3817 | { | |
3818 | if ((op1.exp.X_add_number & 0x8) == 0x8) | |
3819 | { | |
3820 | /* The GIE bit is being set. */ | |
3821 | warn_eint_nop (prev_insn_is_nop, prev_insn_is_dint); | |
3822 | this_insn_is_eint = TRUE; | |
3823 | } | |
3824 | else | |
3825 | /* The GIE bit is being cleared. */ | |
3826 | this_insn_is_dint = TRUE; | |
3827 | } | |
3828 | /* If an immediate value which is covered by the constant generator | |
3829 | is the src, then op1 will have been changed to either R2 or R3 by | |
3830 | this point. | |
3831 | The only constants covered by CG1 and CG2, which have bit 3 set | |
3832 | and therefore would enable interrupts when writing to the SR, are | |
3833 | R2 with addresing mode 0b11 and R3 with 0b11. | |
3834 | The addressing mode is in bits 5:4 of the binary opcode. */ | |
3835 | else if (op1.mode == OP_REG | |
3836 | && (op1.reg == 2 || op1.reg == 3) | |
3837 | && (bin & 0x30) == 0x30) | |
3838 | { | |
3839 | warn_eint_nop (prev_insn_is_nop, prev_insn_is_dint); | |
3840 | this_insn_is_eint = TRUE; | |
3841 | } | |
3842 | /* Any other use of the constant generator with destination R2, will | |
3843 | disable interrupts. */ | |
3844 | else if (op1.mode == OP_REG | |
3845 | && (op1.reg == 2 || op1.reg == 3)) | |
3846 | this_insn_is_dint = TRUE; | |
d5579774 | 3847 | else if (do_unknown_interrupt_nops) |
35ba4bc0 JL |
3848 | { |
3849 | /* FIXME: Couldn't work out whether the insn is enabling or | |
3850 | disabling interrupts, so for safety need to treat it as both | |
3851 | a DINT and EINT. */ | |
d5579774 | 3852 | warn_unsure_interrupt (prev_insn_is_nop, prev_insn_is_dint); |
35ba4bc0 JL |
3853 | check_for_nop |= NOP_CHECK_INTERRUPT; |
3854 | } | |
3855 | } | |
3856 | else if (is_eint (opcode->name, bin)) | |
3857 | warn_eint_nop (prev_insn_is_nop, prev_insn_is_dint); | |
3858 | else if ((bin & 0x32) == 0x32) | |
3859 | { | |
3860 | /* Double-operand insn with the As==0b11 and Rdst==0x2 will result in | |
3861 | * an interrupt state change if a write happens. */ | |
3862 | /* FIXME: How strict to be here? */ | |
3863 | ; | |
3864 | } | |
2213f746 | 3865 | |
13761a11 | 3866 | /* Compute the entire length of the instruction in bytes. */ |
65d7bab5 | 3867 | op_length = (extended_op ? 2 : 0) /* The extension word. */ |
13761a11 NC |
3868 | + 2 /* The opcode */ |
3869 | + (2 * op1.ol) /* The first operand. */ | |
3870 | + (2 * op2.ol); /* The second operand. */ | |
b18c562e | 3871 | |
65d7bab5 NC |
3872 | insn_length += op_length; |
3873 | frag = frag_more (op_length); | |
b18c562e | 3874 | where = frag - frag_now->fr_literal; |
38d77545 | 3875 | |
13761a11 NC |
3876 | if (extended_op) |
3877 | { | |
3878 | if (!addr_op) | |
3879 | extended |= BYTE_OPERATION; | |
3880 | ||
3881 | if ((op1.ol != 0 || op2.ol != 0) && ((extended & 0xf) != 0)) | |
3882 | { | |
3883 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3884 | extended &= ~ 0xf; | |
3885 | } | |
3886 | ||
3887 | /* If necessary, emit a reloc to update the extension word. */ | |
3888 | if (op1.mode == OP_EXP) | |
3889 | { | |
3890 | if (op1.exp.X_op == O_constant) | |
3891 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
3892 | ||
e66c3c25 | 3893 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3894 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3895 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3896 | else | |
3897 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3898 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3899 | } | |
38d77545 | 3900 | |
13761a11 NC |
3901 | if (op2.mode == OP_EXP) |
3902 | { | |
3903 | if (op2.exp.X_op == O_constant) | |
3904 | extended |= (op2.exp.X_add_number >> 16) & 0xf; | |
3905 | ||
3906 | else if (op1.mode == OP_EXP) | |
3907 | fix_new_exp (frag_now, where, 8, &(op2.exp), FALSE, | |
3908 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_ODST | |
3909 | : BFD_RELOC_MSP430X_PCR20_EXT_ODST); | |
38d77545 | 3910 | |
13761a11 NC |
3911 | else |
3912 | fix_new_exp (frag_now, where, 6, &(op2.exp), FALSE, | |
3913 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_DST | |
3914 | : BFD_RELOC_MSP430X_PCR20_EXT_DST); | |
3915 | } | |
3916 | ||
3917 | /* Emit the extension word. */ | |
3918 | bfd_putl16 (extended, frag); | |
3919 | where += 2; | |
3920 | frag += 2; | |
3921 | } | |
3922 | ||
b18c562e | 3923 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3924 | where += 2; |
3925 | frag += 2; | |
b18c562e NC |
3926 | |
3927 | if (op1.mode == OP_EXP) | |
2469cfa2 | 3928 | { |
13761a11 NC |
3929 | if (op1.exp.X_op == O_constant) |
3930 | { | |
3931 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3932 | } | |
b18c562e | 3933 | else |
13761a11 NC |
3934 | { |
3935 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3936 | ||
3937 | if (!extended_op) | |
3938 | { | |
e66c3c25 | 3939 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 3940 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3941 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3942 | else |
3943 | fix_new_exp (frag_now, where, 2, | |
3944 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3945 | } | |
3946 | } | |
3947 | ||
3948 | where += 2; | |
3949 | frag += 2; | |
2469cfa2 | 3950 | } |
b18c562e NC |
3951 | |
3952 | if (op2.mode == OP_EXP) | |
2469cfa2 | 3953 | { |
13761a11 NC |
3954 | if (op2.exp.X_op == O_constant) |
3955 | { | |
3956 | bfd_putl16 (op2.exp.X_add_number & 0xffff, frag); | |
3957 | } | |
b18c562e | 3958 | else |
13761a11 NC |
3959 | { |
3960 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3961 | ||
3962 | if (!extended_op) | |
3963 | { | |
3964 | if (op2.reg) /* Not PC relative. */ | |
3965 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 3966 | &(op2.exp), FALSE, CHECK_RELOC_MSP430 (op2)); |
13761a11 NC |
3967 | else |
3968 | fix_new_exp (frag_now, where, 2, | |
3969 | &(op2.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3970 | } | |
3971 | } | |
3972 | } | |
3973 | ||
13761a11 | 3974 | dwarf2_emit_insn (insn_length); |
2213f746 NC |
3975 | |
3976 | /* If the PC is the destination... */ | |
3977 | if (op2.am == 0 && op2.reg == 0 | |
3978 | /* ... but the opcode does not alter the destination. */ | |
3979 | && (is_opcode ("cmp") || is_opcode ("bit") || is_opcode ("cmpx"))) | |
3980 | check_for_nop |= NOP_CHECK_CPU12; | |
b18c562e NC |
3981 | break; |
3982 | ||
3983 | case 2: /* Single-operand mostly instr. */ | |
3984 | if (opcode->insn_opnumb == 0) | |
2469cfa2 | 3985 | { |
b18c562e | 3986 | /* reti instruction. */ |
13761a11 | 3987 | insn_length += 2; |
b18c562e NC |
3988 | frag = frag_more (2); |
3989 | bfd_putl16 ((bfd_vma) bin, frag); | |
13761a11 | 3990 | dwarf2_emit_insn (insn_length); |
b18c562e | 3991 | break; |
2469cfa2 | 3992 | } |
2469cfa2 | 3993 | |
b18c562e | 3994 | line = extract_operand (line, l1, sizeof (l1)); |
13761a11 NC |
3995 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, |
3996 | &imm_op, extended_op, TRUE); | |
b18c562e NC |
3997 | if (res) |
3998 | break; /* Error in operand. */ | |
2469cfa2 | 3999 | |
d1706f38 NC |
4000 | if (target_is_430xv2 () |
4001 | && op1.mode == OP_REG | |
38d77545 | 4002 | && op1.reg == 0 |
638d3803 NC |
4003 | && (is_opcode ("rrax") |
4004 | || is_opcode ("rrcx") | |
4005 | || is_opcode ("rra") | |
4006 | || is_opcode ("rrc"))) | |
4007 | { | |
4008 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 4009 | break; |
638d3803 | 4010 | } |
38d77545 | 4011 | |
2213f746 NC |
4012 | /* If the status register is the destination... */ |
4013 | if (op1.am == 0 && op1.reg == 2 | |
4014 | /* ... and the opcode alters the SR. */ | |
4015 | && (is_opcode ("rra") || is_opcode ("rrc") || is_opcode ("sxt"))) | |
4016 | { | |
4017 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
de194d85 | 4018 | as_bad (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 | 4019 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) |
de194d85 | 4020 | as_warn (_("CPU13: SR is destination of SR altering instruction")); |
2213f746 NC |
4021 | } |
4022 | ||
13761a11 NC |
4023 | insn_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2); |
4024 | frag = frag_more (insn_length); | |
b18c562e | 4025 | where = frag - frag_now->fr_literal; |
38d77545 | 4026 | |
13761a11 NC |
4027 | if (extended_op) |
4028 | { | |
638d3803 | 4029 | if (is_opcode ("swpbx") || is_opcode ("sxtx")) |
13761a11 NC |
4030 | { |
4031 | /* These two instructions use a special | |
4032 | encoding of the A/L and B/W bits. */ | |
4033 | bin &= ~ BYTE_OPERATION; | |
4034 | ||
4035 | if (byte_op) | |
4036 | { | |
4037 | as_bad (_("%s instruction does not accept a .b suffix"), | |
4038 | opcode->name); | |
65d7bab5 | 4039 | break; |
13761a11 NC |
4040 | } |
4041 | else if (! addr_op) | |
4042 | extended |= BYTE_OPERATION; | |
4043 | } | |
4044 | else if (! addr_op) | |
4045 | extended |= BYTE_OPERATION; | |
4046 | ||
c1d9289f NC |
4047 | if (is_opcode ("rrux")) |
4048 | extended |= IGNORE_CARRY_BIT; | |
4049 | ||
13761a11 NC |
4050 | if (op1.ol != 0 && ((extended & 0xf) != 0)) |
4051 | { | |
4052 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
4053 | extended &= ~ 0xf; | |
4054 | } | |
4055 | ||
4056 | if (op1.mode == OP_EXP) | |
4057 | { | |
4058 | if (op1.exp.X_op == O_constant) | |
4059 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
38d77545 | 4060 | |
e66c3c25 | 4061 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
4062 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
4063 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
4064 | else | |
4065 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
4066 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
4067 | } | |
38d77545 | 4068 | |
13761a11 NC |
4069 | /* Emit the extension word. */ |
4070 | bfd_putl16 (extended, frag); | |
4071 | frag += 2; | |
4072 | where += 2; | |
4073 | } | |
4074 | ||
4075 | bin |= op1.reg | (op1.am << 4); | |
b18c562e | 4076 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
4077 | frag += 2; |
4078 | where += 2; | |
b18c562e NC |
4079 | |
4080 | if (op1.mode == OP_EXP) | |
2469cfa2 | 4081 | { |
13761a11 NC |
4082 | if (op1.exp.X_op == O_constant) |
4083 | { | |
4084 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
4085 | } | |
b18c562e | 4086 | else |
13761a11 NC |
4087 | { |
4088 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
4089 | ||
4090 | if (!extended_op) | |
4091 | { | |
e66c3c25 | 4092 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 4093 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 4094 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
4095 | else |
4096 | fix_new_exp (frag_now, where, 2, | |
4097 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
4098 | } | |
4099 | } | |
2469cfa2 | 4100 | } |
13761a11 NC |
4101 | |
4102 | dwarf2_emit_insn (insn_length); | |
b18c562e | 4103 | break; |
2469cfa2 | 4104 | |
b18c562e NC |
4105 | case 3: /* Conditional jumps instructions. */ |
4106 | line = extract_operand (line, l1, sizeof (l1)); | |
4107 | /* l1 is a label. */ | |
4108 | if (l1[0]) | |
2469cfa2 | 4109 | { |
b18c562e NC |
4110 | char *m = l1; |
4111 | expressionS exp; | |
2469cfa2 | 4112 | |
b18c562e NC |
4113 | if (*m == '$') |
4114 | m++; | |
2469cfa2 | 4115 | |
2bfa0cdf NC |
4116 | end = parse_exp (m, &exp); |
4117 | if (end != NULL && *end != 0) | |
4118 | { | |
4119 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l1); | |
4120 | break; | |
4121 | } | |
2469cfa2 | 4122 | |
b18c562e | 4123 | /* In order to handle something like: |
2469cfa2 | 4124 | |
b18c562e NC |
4125 | and #0x8000, r5 |
4126 | tst r5 | |
4127 | jz 4 ; skip next 4 bytes | |
4128 | inv r5 | |
4129 | inc r5 | |
4130 | nop ; will jump here if r5 positive or zero | |
2469cfa2 | 4131 | |
b18c562e | 4132 | jCOND -n ;assumes jump n bytes backward: |
2469cfa2 | 4133 | |
b18c562e NC |
4134 | mov r5,r6 |
4135 | jmp -2 | |
2469cfa2 | 4136 | |
b18c562e NC |
4137 | is equal to: |
4138 | lab: | |
4139 | mov r5,r6 | |
4140 | jmp lab | |
4141 | ||
4142 | jCOND $n ; jump from PC in either direction. */ | |
2469cfa2 | 4143 | |
b18c562e NC |
4144 | if (exp.X_op == O_constant) |
4145 | { | |
4146 | int x = exp.X_add_number; | |
2469cfa2 | 4147 | |
b18c562e NC |
4148 | if (x & 1) |
4149 | { | |
4150 | as_warn (_("Even number required. Rounded to %d"), x + 1); | |
4151 | x++; | |
4152 | } | |
2469cfa2 | 4153 | |
b18c562e NC |
4154 | if ((*l1 == '$' && x > 0) || x < 0) |
4155 | x -= 2; | |
2469cfa2 | 4156 | |
b18c562e NC |
4157 | x >>= 1; |
4158 | ||
4159 | if (x > 512 || x < -511) | |
4160 | { | |
33eaf5de | 4161 | as_bad (_("Wrong displacement %d"), x << 1); |
b18c562e NC |
4162 | break; |
4163 | } | |
4164 | ||
13761a11 NC |
4165 | insn_length += 2; |
4166 | frag = frag_more (2); /* Instr size is 1 word. */ | |
4167 | ||
b18c562e NC |
4168 | bin |= x & 0x3ff; |
4169 | bfd_putl16 ((bfd_vma) bin, frag); | |
4170 | } | |
4171 | else if (exp.X_op == O_symbol && *l1 != '$') | |
2469cfa2 | 4172 | { |
13761a11 NC |
4173 | insn_length += 2; |
4174 | frag = frag_more (2); /* Instr size is 1 word. */ | |
b18c562e NC |
4175 | where = frag - frag_now->fr_literal; |
4176 | fix_new_exp (frag_now, where, 2, | |
4177 | &exp, TRUE, BFD_RELOC_MSP430_10_PCREL); | |
4178 | ||
4179 | bfd_putl16 ((bfd_vma) bin, frag); | |
2469cfa2 | 4180 | } |
b18c562e | 4181 | else if (*l1 == '$') |
2469cfa2 | 4182 | { |
b18c562e | 4183 | as_bad (_("instruction requires label sans '$'")); |
2469cfa2 | 4184 | } |
b18c562e | 4185 | else |
13761a11 NC |
4186 | as_bad (_ |
4187 | ("instruction requires label or value in range -511:512")); | |
4188 | dwarf2_emit_insn (insn_length); | |
2a9a06c1 | 4189 | break; |
2469cfa2 | 4190 | } |
b18c562e NC |
4191 | else |
4192 | { | |
4193 | as_bad (_("instruction requires label")); | |
4194 | break; | |
4195 | } | |
4196 | break; | |
2469cfa2 | 4197 | |
b18c562e | 4198 | case 4: /* Extended jumps. */ |
77592908 DD |
4199 | if (!msp430_enable_polys) |
4200 | { | |
20203fb9 | 4201 | as_bad (_("polymorphs are not enabled. Use -mP option to enable.")); |
77592908 DD |
4202 | break; |
4203 | } | |
3739860c | 4204 | |
b18c562e NC |
4205 | line = extract_operand (line, l1, sizeof (l1)); |
4206 | if (l1[0]) | |
2469cfa2 | 4207 | { |
b18c562e NC |
4208 | char *m = l1; |
4209 | expressionS exp; | |
2469cfa2 | 4210 | |
b18c562e NC |
4211 | /* Ignore absolute addressing. make it PC relative anyway. */ |
4212 | if (*m == '#' || *m == '$') | |
4213 | m++; | |
2469cfa2 | 4214 | |
2bfa0cdf NC |
4215 | end = parse_exp (m, & exp); |
4216 | if (end != NULL && *end != 0) | |
4217 | { | |
4218 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l1); | |
4219 | break; | |
4220 | } | |
b18c562e | 4221 | if (exp.X_op == O_symbol) |
2469cfa2 | 4222 | { |
b18c562e NC |
4223 | /* Relaxation required. */ |
4224 | struct rcodes_s rc = msp430_rcodes[opcode->insn_opnumb]; | |
4225 | ||
638d3803 | 4226 | if (target_is_430x ()) |
13761a11 NC |
4227 | rc = msp430x_rcodes[opcode->insn_opnumb]; |
4228 | ||
4229 | /* The parameter to dwarf2_emit_insn is actually the offset to | |
4230 | the start of the insn from the fix piece of instruction that | |
4231 | was emitted. Since next fragments may have variable size we | |
4232 | tie debug info to the beginning of the instruction. */ | |
4233 | insn_length += 8; | |
3e470ab5 | 4234 | frag = frag_more (8); |
2a9a06c1 | 4235 | dwarf2_emit_insn (0); |
3e470ab5 DD |
4236 | bfd_putl16 ((bfd_vma) rc.sop, frag); |
4237 | frag = frag_variant (rs_machine_dependent, 8, 2, | |
13761a11 NC |
4238 | /* Wild guess. */ |
4239 | ENCODE_RELAX (rc.lpos, STATE_BITS10), | |
b18c562e NC |
4240 | exp.X_add_symbol, |
4241 | 0, /* Offset is zero if jump dist less than 1K. */ | |
4242 | (char *) frag); | |
4243 | break; | |
2469cfa2 NC |
4244 | } |
4245 | } | |
b18c562e NC |
4246 | |
4247 | as_bad (_("instruction requires label")); | |
4248 | break; | |
4249 | ||
4250 | case 5: /* Emulated extended branches. */ | |
77592908 DD |
4251 | if (!msp430_enable_polys) |
4252 | { | |
20203fb9 | 4253 | as_bad (_("polymorphs are not enabled. Use -mP option to enable.")); |
77592908 DD |
4254 | break; |
4255 | } | |
b18c562e NC |
4256 | line = extract_operand (line, l1, sizeof (l1)); |
4257 | if (l1[0]) | |
2469cfa2 | 4258 | { |
b18c562e NC |
4259 | char * m = l1; |
4260 | expressionS exp; | |
4261 | ||
4262 | /* Ignore absolute addressing. make it PC relative anyway. */ | |
4263 | if (*m == '#' || *m == '$') | |
4264 | m++; | |
4265 | ||
2bfa0cdf NC |
4266 | end = parse_exp (m, & exp); |
4267 | if (end != NULL && *end != 0) | |
4268 | { | |
4269 | as_bad (_("extra characters '%s' at end of operand '%s'"), end, l1); | |
4270 | break; | |
4271 | } | |
b18c562e NC |
4272 | if (exp.X_op == O_symbol) |
4273 | { | |
4274 | /* Relaxation required. */ | |
4275 | struct hcodes_s hc = msp430_hcodes[opcode->insn_opnumb]; | |
4276 | ||
638d3803 | 4277 | if (target_is_430x ()) |
13761a11 NC |
4278 | hc = msp430x_hcodes[opcode->insn_opnumb]; |
4279 | ||
4280 | insn_length += 8; | |
3e470ab5 | 4281 | frag = frag_more (8); |
2a9a06c1 | 4282 | dwarf2_emit_insn (0); |
3e470ab5 DD |
4283 | bfd_putl16 ((bfd_vma) hc.op0, frag); |
4284 | bfd_putl16 ((bfd_vma) hc.op1, frag+2); | |
4285 | ||
4286 | frag = frag_variant (rs_machine_dependent, 8, 2, | |
b18c562e NC |
4287 | ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_BITS10), /* Wild guess. */ |
4288 | exp.X_add_symbol, | |
4289 | 0, /* Offset is zero if jump dist less than 1K. */ | |
4290 | (char *) frag); | |
4291 | break; | |
4292 | } | |
2469cfa2 NC |
4293 | } |
4294 | ||
b18c562e NC |
4295 | as_bad (_("instruction requires label")); |
4296 | break; | |
2469cfa2 | 4297 | |
b18c562e | 4298 | default: |
79cf5950 | 4299 | as_bad (_("Illegal instruction or not implemented opcode.")); |
b18c562e | 4300 | } |
2469cfa2 | 4301 | |
35ba4bc0 JL |
4302 | if (is_opcode ("nop")) |
4303 | { | |
4304 | prev_insn_is_nop = TRUE; | |
4305 | prev_insn_is_dint = FALSE; | |
4306 | prev_insn_is_eint = FALSE; | |
4307 | } | |
4308 | else if (this_insn_is_dint || is_dint (opcode->name, bin)) | |
4309 | { | |
4310 | prev_insn_is_dint = TRUE; | |
4311 | prev_insn_is_eint = FALSE; | |
4312 | prev_insn_is_nop = FALSE; | |
4313 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
4314 | } | |
4315 | /* NOP is not needed after EINT for 430 ISA. */ | |
4316 | else if (target_is_430x () && (this_insn_is_eint || is_eint (opcode->name, bin))) | |
4317 | { | |
4318 | prev_insn_is_eint = TRUE; | |
4319 | prev_insn_is_nop = FALSE; | |
4320 | prev_insn_is_dint = FALSE; | |
4321 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
4322 | } | |
4323 | else | |
4324 | { | |
4325 | prev_insn_is_nop = FALSE; | |
4326 | prev_insn_is_dint = FALSE; | |
4327 | prev_insn_is_eint = FALSE; | |
4328 | } | |
4329 | ||
b18c562e NC |
4330 | input_line_pointer = line; |
4331 | return 0; | |
4332 | } | |
2469cfa2 | 4333 | |
b18c562e NC |
4334 | void |
4335 | md_assemble (char * str) | |
4336 | { | |
4337 | struct msp430_opcode_s * opcode; | |
4338 | char cmd[32]; | |
4339 | unsigned int i = 0; | |
2469cfa2 | 4340 | |
b18c562e | 4341 | str = skip_space (str); /* Skip leading spaces. */ |
64a81db0 | 4342 | str = extract_cmd (str, cmd, sizeof (cmd) - 1); |
2469cfa2 | 4343 | |
64a81db0 | 4344 | while (cmd[i]) |
b18c562e NC |
4345 | { |
4346 | char a = TOLOWER (cmd[i]); | |
4347 | cmd[i] = a; | |
4348 | i++; | |
2469cfa2 | 4349 | } |
2469cfa2 | 4350 | |
b18c562e | 4351 | if (!cmd[0]) |
2469cfa2 | 4352 | { |
33eaf5de | 4353 | as_bad (_("can't find opcode")); |
b18c562e NC |
4354 | return; |
4355 | } | |
2469cfa2 | 4356 | |
629310ab | 4357 | opcode = (struct msp430_opcode_s *) str_hash_find (msp430_hash, cmd); |
2469cfa2 | 4358 | |
b18c562e NC |
4359 | if (opcode == NULL) |
4360 | { | |
4361 | as_bad (_("unknown opcode `%s'"), cmd); | |
4362 | return; | |
2469cfa2 | 4363 | } |
2469cfa2 | 4364 | |
b18c562e NC |
4365 | { |
4366 | char *__t = input_line_pointer; | |
2469cfa2 | 4367 | |
b18c562e NC |
4368 | msp430_operands (opcode, str); |
4369 | input_line_pointer = __t; | |
4370 | } | |
4371 | } | |
2469cfa2 NC |
4372 | |
4373 | /* GAS will call this function for each section at the end of the assembly, | |
4374 | to permit the CPU backend to adjust the alignment of a section. */ | |
4375 | ||
4376 | valueT | |
b18c562e | 4377 | md_section_align (asection * seg, valueT addr) |
2469cfa2 | 4378 | { |
fd361982 | 4379 | int align = bfd_section_alignment (seg); |
2469cfa2 | 4380 | |
8d3842cd | 4381 | return ((addr + (1 << align) - 1) & -(1 << align)); |
2469cfa2 NC |
4382 | } |
4383 | ||
4384 | /* If you define this macro, it should return the offset between the | |
4385 | address of a PC relative fixup and the position from which the PC | |
4386 | relative adjustment should be made. On many processors, the base | |
4387 | of a PC relative instruction is the next instruction, so this | |
4388 | macro would return the length of an instruction. */ | |
4389 | ||
4390 | long | |
b18c562e | 4391 | md_pcrel_from_section (fixS * fixp, segT sec) |
2469cfa2 NC |
4392 | { |
4393 | if (fixp->fx_addsy != (symbolS *) NULL | |
4394 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
4395 | || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) | |
4396 | return 0; | |
4397 | ||
4398 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
4399 | } | |
4400 | ||
91cb9803 | 4401 | /* Addition to the standard TC_FORCE_RELOCATION_LOCAL. |
77592908 | 4402 | Now it handles the situation when relocations |
13761a11 | 4403 | have to be passed to linker. */ |
77592908 | 4404 | int |
13761a11 | 4405 | msp430_force_relocation_local (fixS *fixp) |
77592908 | 4406 | { |
13761a11 NC |
4407 | if (fixp->fx_r_type == BFD_RELOC_MSP430_10_PCREL) |
4408 | return 1; | |
13761a11 NC |
4409 | if (fixp->fx_pcrel) |
4410 | return 1; | |
77592908 DD |
4411 | if (msp430_enable_polys |
4412 | && !msp430_enable_relax) | |
4413 | return 1; | |
13761a11 | 4414 | |
91cb9803 | 4415 | return 0; |
77592908 DD |
4416 | } |
4417 | ||
4418 | ||
2469cfa2 NC |
4419 | /* GAS will call this for each fixup. It should store the correct |
4420 | value in the object file. */ | |
2469cfa2 | 4421 | void |
55cf6793 | 4422 | md_apply_fix (fixS * fixp, valueT * valuep, segT seg) |
2469cfa2 | 4423 | { |
b18c562e | 4424 | unsigned char * where; |
2469cfa2 NC |
4425 | unsigned long insn; |
4426 | long value; | |
4427 | ||
4428 | if (fixp->fx_addsy == (symbolS *) NULL) | |
4429 | { | |
4430 | value = *valuep; | |
4431 | fixp->fx_done = 1; | |
4432 | } | |
4433 | else if (fixp->fx_pcrel) | |
4434 | { | |
4435 | segT s = S_GET_SEGMENT (fixp->fx_addsy); | |
4436 | ||
4437 | if (fixp->fx_addsy && (s == seg || s == absolute_section)) | |
4438 | { | |
18af0b39 NC |
4439 | /* FIXME: We can appear here only in case if we perform a pc |
4440 | relative jump to the label which is i) global, ii) locally | |
4441 | defined or this is a jump to an absolute symbol. | |
4442 | If this is an absolute symbol -- everything is OK. | |
4443 | If this is a global label, we've got a symbol value defined | |
4444 | twice: | |
4445 | 1. S_GET_VALUE (fixp->fx_addsy) will contain a symbol offset | |
4446 | from this section start | |
4447 | 2. *valuep will contain the real offset from jump insn to the | |
4448 | label | |
4449 | So, the result of S_GET_VALUE (fixp->fx_addsy) + (* valuep); | |
4450 | will be incorrect. Therefore remove s_get_value. */ | |
4451 | value = /* S_GET_VALUE (fixp->fx_addsy) + */ * valuep; | |
2469cfa2 NC |
4452 | fixp->fx_done = 1; |
4453 | } | |
4454 | else | |
4455 | value = *valuep; | |
4456 | } | |
4457 | else | |
4458 | { | |
4459 | value = fixp->fx_offset; | |
4460 | ||
4461 | if (fixp->fx_subsy != (symbolS *) NULL) | |
4462 | { | |
4463 | if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) | |
4464 | { | |
4465 | value -= S_GET_VALUE (fixp->fx_subsy); | |
4466 | fixp->fx_done = 1; | |
4467 | } | |
2469cfa2 NC |
4468 | } |
4469 | } | |
4470 | ||
77592908 DD |
4471 | fixp->fx_no_overflow = 1; |
4472 | ||
38d77545 | 4473 | /* If polymorphs are enabled and relax disabled. |
13761a11 | 4474 | do not kill any relocs and pass them to linker. */ |
38d77545 | 4475 | if (msp430_enable_polys |
77592908 | 4476 | && !msp430_enable_relax) |
2469cfa2 | 4477 | { |
e66c3c25 NC |
4478 | if (!fixp->fx_addsy |
4479 | || S_GET_SEGMENT (fixp->fx_addsy) == absolute_section) | |
79cf5950 | 4480 | fixp->fx_done = 1; /* It is ok to kill 'abs' reloc. */ |
77592908 DD |
4481 | else |
4482 | fixp->fx_done = 0; | |
2469cfa2 NC |
4483 | } |
4484 | ||
4485 | if (fixp->fx_done) | |
4486 | { | |
4487 | /* Fetch the instruction, insert the fully resolved operand | |
8cd5b113 | 4488 | value, and stuff the instruction back again. */ |
2132e3a3 | 4489 | where = (unsigned char *) fixp->fx_frag->fr_literal + fixp->fx_where; |
2469cfa2 NC |
4490 | |
4491 | insn = bfd_getl16 (where); | |
4492 | ||
4493 | switch (fixp->fx_r_type) | |
4494 | { | |
4495 | case BFD_RELOC_MSP430_10_PCREL: | |
4496 | if (value & 1) | |
4497 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4498 | _("odd address operand: %ld"), value); | |
4499 | ||
4500 | /* Jumps are in words. */ | |
4501 | value >>= 1; | |
4502 | --value; /* Correct PC. */ | |
4503 | ||
4504 | if (value < -512 || value > 511) | |
4505 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4506 | _("operand out of range: %ld"), value); | |
4507 | ||
4508 | value &= 0x3ff; /* get rid of extended sign */ | |
4509 | bfd_putl16 ((bfd_vma) (value | insn), where); | |
4510 | break; | |
4511 | ||
13761a11 | 4512 | case BFD_RELOC_MSP430X_PCR16: |
b18c562e | 4513 | case BFD_RELOC_MSP430_RL_PCREL: |
2469cfa2 NC |
4514 | case BFD_RELOC_MSP430_16_PCREL: |
4515 | if (value & 1) | |
4516 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4517 | _("odd address operand: %ld"), value); | |
13761a11 | 4518 | /* Fall through. */ |
2469cfa2 NC |
4519 | |
4520 | case BFD_RELOC_MSP430_16_PCREL_BYTE: | |
4521 | /* Nothing to be corrected here. */ | |
4522 | if (value < -32768 || value > 65536) | |
4523 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4524 | _("operand out of range: %ld"), value); | |
13761a11 | 4525 | /* Fall through. */ |
2469cfa2 | 4526 | |
13761a11 NC |
4527 | case BFD_RELOC_MSP430X_ABS16: |
4528 | case BFD_RELOC_MSP430_16: | |
4529 | case BFD_RELOC_16: | |
4530 | case BFD_RELOC_MSP430_16_BYTE: | |
2469cfa2 NC |
4531 | value &= 0xffff; /* Get rid of extended sign. */ |
4532 | bfd_putl16 ((bfd_vma) value, where); | |
4533 | break; | |
4534 | ||
00b32ff2 NC |
4535 | case BFD_RELOC_MSP430_ABS_HI16: |
4536 | value >>= 16; | |
4537 | value &= 0xffff; /* Get rid of extended sign. */ | |
4538 | bfd_putl16 ((bfd_vma) value, where); | |
4539 | break; | |
3739860c | 4540 | |
2469cfa2 NC |
4541 | case BFD_RELOC_32: |
4542 | bfd_putl16 ((bfd_vma) value, where); | |
4543 | break; | |
4544 | ||
13761a11 NC |
4545 | case BFD_RELOC_MSP430_ABS8: |
4546 | case BFD_RELOC_8: | |
4547 | bfd_put_8 (NULL, (bfd_vma) value, where); | |
4548 | break; | |
4549 | ||
4550 | case BFD_RELOC_MSP430X_ABS20_EXT_SRC: | |
4551 | case BFD_RELOC_MSP430X_PCR20_EXT_SRC: | |
4552 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 4); | |
38d77545 | 4553 | value >>= 16; |
13761a11 NC |
4554 | bfd_putl16 ((bfd_vma) (((value & 0xf) << 7) | insn), where); |
4555 | break; | |
4556 | ||
4557 | case BFD_RELOC_MSP430X_ABS20_ADR_SRC: | |
4558 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
38d77545 | 4559 | value >>= 16; |
13761a11 NC |
4560 | bfd_putl16 ((bfd_vma) (((value & 0xf) << 8) | insn), where); |
4561 | break; | |
4562 | ||
4563 | case BFD_RELOC_MSP430X_ABS20_EXT_ODST: | |
4564 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 6); | |
4565 | value >>= 16; | |
4566 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4567 | break; | |
4568 | ||
4569 | case BFD_RELOC_MSP430X_PCR20_CALL: | |
4570 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
4571 | value >>= 16; | |
4572 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4573 | break; | |
4574 | ||
4575 | case BFD_RELOC_MSP430X_ABS20_EXT_DST: | |
4576 | case BFD_RELOC_MSP430X_PCR20_EXT_DST: | |
4577 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 4); | |
4578 | value >>= 16; | |
4579 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4580 | break; | |
4581 | ||
4582 | case BFD_RELOC_MSP430X_PCR20_EXT_ODST: | |
4583 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 6); | |
4584 | value >>= 16; | |
4585 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4586 | break; | |
4587 | ||
4588 | case BFD_RELOC_MSP430X_ABS20_ADR_DST: | |
4589 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
4590 | value >>= 16; | |
4591 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
2469cfa2 | 4592 | break; |
38d77545 | 4593 | |
2469cfa2 NC |
4594 | default: |
4595 | as_fatal (_("line %d: unknown relocation type: 0x%x"), | |
4596 | fixp->fx_line, fixp->fx_r_type); | |
4597 | break; | |
4598 | } | |
4599 | } | |
4600 | else | |
4601 | { | |
4602 | fixp->fx_addnumber = value; | |
4603 | } | |
2469cfa2 NC |
4604 | } |
4605 | ||
13761a11 NC |
4606 | static bfd_boolean |
4607 | S_IS_GAS_LOCAL (symbolS * s) | |
4608 | { | |
4609 | const char * name; | |
4610 | unsigned int len; | |
4611 | ||
4612 | if (s == NULL) | |
4613 | return FALSE; | |
4614 | name = S_GET_NAME (s); | |
4615 | len = strlen (name) - 1; | |
38d77545 | 4616 | |
13761a11 NC |
4617 | return name[len] == 1 || name[len] == 2; |
4618 | } | |
4619 | ||
7be1c489 AM |
4620 | /* GAS will call this to generate a reloc, passing the resulting reloc |
4621 | to `bfd_install_relocation'. This currently works poorly, as | |
4622 | `bfd_install_relocation' often does the wrong thing, and instances of | |
4623 | `tc_gen_reloc' have been written to work around the problems, which | |
4624 | in turns makes it difficult to fix `bfd_install_relocation'. */ | |
2469cfa2 NC |
4625 | |
4626 | /* If while processing a fixup, a reloc really needs to be created | |
4627 | then it is done here. */ | |
4628 | ||
13761a11 | 4629 | arelent ** |
b18c562e | 4630 | tc_gen_reloc (asection * seg ATTRIBUTE_UNUSED, fixS * fixp) |
2469cfa2 | 4631 | { |
13761a11 NC |
4632 | static arelent * no_relocs = NULL; |
4633 | static arelent * relocs[MAX_RELOC_EXPANSION + 1]; | |
4634 | arelent *reloc; | |
2469cfa2 | 4635 | |
325801bd | 4636 | reloc = XNEW (arelent); |
2469cfa2 NC |
4637 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
4638 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
13761a11 | 4639 | |
2469cfa2 NC |
4640 | if (reloc->howto == (reloc_howto_type *) NULL) |
4641 | { | |
4642 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4643 | _("reloc %d not supported by object file format"), | |
4644 | (int) fixp->fx_r_type); | |
13761a11 NC |
4645 | free (reloc); |
4646 | return & no_relocs; | |
4647 | } | |
4648 | ||
4649 | relocs[0] = reloc; | |
4650 | relocs[1] = NULL; | |
4651 | ||
4652 | if (fixp->fx_subsy | |
4653 | && S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) | |
4654 | { | |
4655 | fixp->fx_offset -= S_GET_VALUE (fixp->fx_subsy); | |
4656 | fixp->fx_subsy = NULL; | |
2469cfa2 NC |
4657 | } |
4658 | ||
13761a11 NC |
4659 | if (fixp->fx_addsy && fixp->fx_subsy) |
4660 | { | |
4661 | asection *asec, *ssec; | |
4662 | ||
4663 | asec = S_GET_SEGMENT (fixp->fx_addsy); | |
4664 | ssec = S_GET_SEGMENT (fixp->fx_subsy); | |
4665 | ||
4666 | /* If we have a difference between two different, non-absolute symbols | |
4667 | we must generate two relocs (one for each symbol) and allow the | |
4668 | linker to resolve them - relaxation may change the distances between | |
4669 | symbols, even local symbols defined in the same section. | |
4670 | ||
4671 | Unfortunately we cannot do this with assembler generated local labels | |
4672 | because there can be multiple incarnations of the same label, with | |
4673 | exactly the same name, in any given section and the linker will have | |
4674 | no way to identify the correct one. Instead we just have to hope | |
33eaf5de | 4675 | that no relaxation will occur between the local label and the other |
13761a11 NC |
4676 | symbol in the expression. |
4677 | ||
4678 | Similarly we have to compute differences between symbols in the .eh_frame | |
4679 | section as the linker is not smart enough to apply relocations there | |
4680 | before attempting to process it. */ | |
4681 | if ((ssec != absolute_section || asec != absolute_section) | |
4682 | && (fixp->fx_addsy != fixp->fx_subsy) | |
4683 | && strcmp (ssec->name, ".eh_frame") != 0 | |
4684 | && ! S_IS_GAS_LOCAL (fixp->fx_addsy) | |
4685 | && ! S_IS_GAS_LOCAL (fixp->fx_subsy)) | |
4686 | { | |
325801bd | 4687 | arelent * reloc2 = XNEW (arelent); |
2469cfa2 | 4688 | |
13761a11 NC |
4689 | relocs[0] = reloc2; |
4690 | relocs[1] = reloc; | |
2469cfa2 | 4691 | |
13761a11 NC |
4692 | reloc2->address = reloc->address; |
4693 | reloc2->howto = bfd_reloc_type_lookup (stdoutput, | |
4694 | BFD_RELOC_MSP430_SYM_DIFF); | |
4695 | reloc2->addend = - S_GET_VALUE (fixp->fx_subsy); | |
4696 | ||
4697 | if (ssec == absolute_section) | |
4698 | reloc2->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4699 | else | |
4700 | { | |
325801bd | 4701 | reloc2->sym_ptr_ptr = XNEW (asymbol *); |
13761a11 NC |
4702 | *reloc2->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy); |
4703 | } | |
4704 | ||
38d77545 | 4705 | reloc->addend = fixp->fx_offset; |
13761a11 NC |
4706 | if (asec == absolute_section) |
4707 | { | |
4708 | reloc->addend += S_GET_VALUE (fixp->fx_addsy); | |
4709 | reloc->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4710 | } | |
4711 | else | |
4712 | { | |
325801bd | 4713 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
13761a11 NC |
4714 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
4715 | } | |
4716 | ||
4717 | fixp->fx_pcrel = 0; | |
4718 | fixp->fx_done = 1; | |
4719 | return relocs; | |
4720 | } | |
4721 | else | |
4722 | { | |
4723 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
4724 | ||
4725 | reloc->addend = (S_GET_VALUE (fixp->fx_addsy) | |
4726 | - S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset); | |
4727 | ||
4728 | switch (fixp->fx_r_type) | |
4729 | { | |
4730 | case BFD_RELOC_8: | |
4731 | md_number_to_chars (fixpos, reloc->addend, 1); | |
4732 | break; | |
4733 | ||
4734 | case BFD_RELOC_16: | |
4735 | md_number_to_chars (fixpos, reloc->addend, 2); | |
4736 | break; | |
4737 | ||
4738 | case BFD_RELOC_24: | |
4739 | md_number_to_chars (fixpos, reloc->addend, 3); | |
4740 | break; | |
4741 | ||
4742 | case BFD_RELOC_32: | |
4743 | md_number_to_chars (fixpos, reloc->addend, 4); | |
4744 | break; | |
4745 | ||
4746 | default: | |
4747 | reloc->sym_ptr_ptr | |
4748 | = (asymbol **) bfd_abs_section_ptr->symbol_ptr_ptr; | |
4749 | return relocs; | |
4750 | } | |
4751 | ||
4752 | free (reloc); | |
4753 | return & no_relocs; | |
4754 | } | |
4755 | } | |
4756 | else | |
4757 | { | |
4758 | #if 0 | |
4759 | if (fixp->fx_r_type == BFD_RELOC_MSP430X_ABS16 | |
4760 | && S_GET_SEGMENT (fixp->fx_addsy) == absolute_section) | |
4761 | { | |
4762 | bfd_vma amount = S_GET_VALUE (fixp->fx_addsy); | |
4763 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
4764 | ||
4765 | md_number_to_chars (fixpos, amount, 2); | |
4766 | free (reloc); | |
4767 | return & no_relocs; | |
4768 | } | |
4769 | #endif | |
325801bd | 4770 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
13761a11 NC |
4771 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
4772 | reloc->addend = fixp->fx_offset; | |
4773 | ||
4774 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4775 | || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4776 | reloc->address = fixp->fx_offset; | |
4777 | } | |
4778 | ||
4779 | return relocs; | |
2469cfa2 NC |
4780 | } |
4781 | ||
b18c562e NC |
4782 | int |
4783 | md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED, | |
4784 | asection * segment_type ATTRIBUTE_UNUSED) | |
4785 | { | |
4786 | if (fragP->fr_symbol && S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
4787 | { | |
4788 | /* This is a jump -> pcrel mode. Nothing to do much here. | |
4789 | Return value == 2. */ | |
4790 | fragP->fr_subtype = | |
4791 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_BITS10); | |
4792 | } | |
4793 | else if (fragP->fr_symbol) | |
4794 | { | |
33eaf5de | 4795 | /* It's got a segment, but it's not ours. Even if fr_symbol is in |
79cf5950 | 4796 | an absolute segment, we don't know a displacement until we link |
b18c562e NC |
4797 | object files. So it will always be long. This also applies to |
4798 | labels in a subsegment of current. Liker may relax it to short | |
4799 | jump later. Return value == 8. */ | |
4800 | fragP->fr_subtype = | |
4801 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_WORD); | |
4802 | } | |
4803 | else | |
4804 | { | |
4805 | /* We know the abs value. may be it is a jump to fixed address. | |
79cf5950 | 4806 | Impossible in our case, cause all constants already handled. */ |
b18c562e NC |
4807 | fragP->fr_subtype = |
4808 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_UNDEF); | |
4809 | } | |
2469cfa2 | 4810 | |
b18c562e NC |
4811 | return md_relax_table[fragP->fr_subtype].rlx_length; |
4812 | } | |
4813 | ||
4814 | void | |
4815 | md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, | |
4816 | asection * sec ATTRIBUTE_UNUSED, | |
4817 | fragS * fragP) | |
2469cfa2 | 4818 | { |
b18c562e NC |
4819 | char * where = 0; |
4820 | int rela = -1; | |
4821 | int i; | |
4822 | struct rcodes_s * cc = NULL; | |
4823 | struct hcodes_s * hc = NULL; | |
4824 | ||
4825 | switch (fragP->fr_subtype) | |
4826 | { | |
4827 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_BITS10): | |
4828 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_BITS10): | |
4829 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_BITS10): | |
4830 | /* We do not have to convert anything here. | |
4831 | Just apply a fix. */ | |
4832 | rela = BFD_RELOC_MSP430_10_PCREL; | |
4833 | break; | |
4834 | ||
4835 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_WORD): | |
4836 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_UNDEF): | |
4837 | /* Convert uncond branch jmp lab -> br lab. */ | |
638d3803 | 4838 | if (target_is_430x ()) |
13761a11 | 4839 | cc = msp430x_rcodes + 7; |
638d3803 NC |
4840 | else |
4841 | cc = msp430_rcodes + 7; | |
b18c562e NC |
4842 | where = fragP->fr_literal + fragP->fr_fix; |
4843 | bfd_putl16 (cc->lop0, where); | |
4844 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4845 | fragP->fr_fix += 2; | |
4846 | break; | |
4847 | ||
4848 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_WORD): | |
4849 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_UNDEF): | |
4850 | { | |
4851 | /* Other simple branches. */ | |
4852 | int insn = bfd_getl16 (fragP->fr_opcode); | |
4853 | ||
4854 | insn &= 0xffff; | |
4855 | /* Find actual instruction. */ | |
638d3803 | 4856 | if (target_is_430x ()) |
13761a11 NC |
4857 | { |
4858 | for (i = 0; i < 7 && !cc; i++) | |
4859 | if (msp430x_rcodes[i].sop == insn) | |
4860 | cc = msp430x_rcodes + i; | |
4861 | } | |
4862 | else | |
4863 | { | |
4864 | for (i = 0; i < 7 && !cc; i++) | |
4865 | if (msp430_rcodes[i].sop == insn) | |
4866 | cc = & msp430_rcodes[i]; | |
4867 | } | |
4868 | ||
b18c562e NC |
4869 | if (!cc || !cc->name) |
4870 | as_fatal (_("internal inconsistency problem in %s: insn %04lx"), | |
4871 | __FUNCTION__, (long) insn); | |
4872 | where = fragP->fr_literal + fragP->fr_fix; | |
4873 | bfd_putl16 (cc->lop0, where); | |
4874 | bfd_putl16 (cc->lop1, where + 2); | |
4875 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4876 | fragP->fr_fix += 4; | |
4877 | } | |
4878 | break; | |
4879 | ||
4880 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_WORD): | |
4881 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_UNDEF): | |
638d3803 | 4882 | if (target_is_430x ()) |
13761a11 | 4883 | cc = msp430x_rcodes + 6; |
638d3803 NC |
4884 | else |
4885 | cc = msp430_rcodes + 6; | |
b18c562e NC |
4886 | where = fragP->fr_literal + fragP->fr_fix; |
4887 | bfd_putl16 (cc->lop0, where); | |
4888 | bfd_putl16 (cc->lop1, where + 2); | |
4889 | bfd_putl16 (cc->lop2, where + 4); | |
4890 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4891 | fragP->fr_fix += 6; | |
4892 | break; | |
4893 | ||
4894 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_BITS10): | |
4895 | { | |
4896 | int insn = bfd_getl16 (fragP->fr_opcode + 2); | |
4897 | ||
4898 | insn &= 0xffff; | |
638d3803 | 4899 | if (target_is_430x ()) |
13761a11 NC |
4900 | { |
4901 | for (i = 0; i < 4 && !hc; i++) | |
4902 | if (msp430x_hcodes[i].op1 == insn) | |
4903 | hc = msp430x_hcodes + i; | |
4904 | } | |
4905 | else | |
4906 | { | |
4907 | for (i = 0; i < 4 && !hc; i++) | |
4908 | if (msp430_hcodes[i].op1 == insn) | |
4909 | hc = &msp430_hcodes[i]; | |
4910 | } | |
b18c562e NC |
4911 | if (!hc || !hc->name) |
4912 | as_fatal (_("internal inconsistency problem in %s: ext. insn %04lx"), | |
4913 | __FUNCTION__, (long) insn); | |
4914 | rela = BFD_RELOC_MSP430_10_PCREL; | |
4915 | /* Apply a fix for a first label if necessary. | |
4916 | another fix will be applied to the next word of insn anyway. */ | |
4917 | if (hc->tlab == 2) | |
4918 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, | |
13761a11 | 4919 | fragP->fr_offset, TRUE, rela); |
b18c562e NC |
4920 | fragP->fr_fix += 2; |
4921 | } | |
4922 | ||
4923 | break; | |
4924 | ||
4925 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_WORD): | |
4926 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_UNDEF): | |
4927 | { | |
4928 | int insn = bfd_getl16 (fragP->fr_opcode + 2); | |
4929 | ||
4930 | insn &= 0xffff; | |
638d3803 | 4931 | if (target_is_430x ()) |
13761a11 NC |
4932 | { |
4933 | for (i = 0; i < 4 && !hc; i++) | |
4934 | if (msp430x_hcodes[i].op1 == insn) | |
4935 | hc = msp430x_hcodes + i; | |
4936 | } | |
4937 | else | |
4938 | { | |
4939 | for (i = 0; i < 4 && !hc; i++) | |
4940 | if (msp430_hcodes[i].op1 == insn) | |
4941 | hc = & msp430_hcodes[i]; | |
4942 | } | |
b18c562e NC |
4943 | if (!hc || !hc->name) |
4944 | as_fatal (_("internal inconsistency problem in %s: ext. insn %04lx"), | |
4945 | __FUNCTION__, (long) insn); | |
4946 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4947 | where = fragP->fr_literal + fragP->fr_fix; | |
4948 | bfd_putl16 (hc->lop0, where); | |
4949 | bfd_putl16 (hc->lop1, where + 2); | |
4950 | bfd_putl16 (hc->lop2, where + 4); | |
4951 | fragP->fr_fix += 6; | |
4952 | } | |
4953 | break; | |
4954 | ||
4955 | default: | |
33eaf5de | 4956 | as_fatal (_("internal inconsistency problem in %s: %lx"), |
b18c562e NC |
4957 | __FUNCTION__, (long) fragP->fr_subtype); |
4958 | break; | |
4959 | } | |
4960 | ||
4961 | /* Now apply fix. */ | |
4962 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, | |
4963 | fragP->fr_offset, TRUE, rela); | |
4964 | /* Just fixed 2 bytes. */ | |
4965 | fragP->fr_fix += 2; | |
2469cfa2 NC |
4966 | } |
4967 | ||
b18c562e NC |
4968 | /* Relax fragment. Mostly stolen from hc11 and mcore |
4969 | which arches I think I know. */ | |
2469cfa2 | 4970 | |
b18c562e NC |
4971 | long |
4972 | msp430_relax_frag (segT seg ATTRIBUTE_UNUSED, fragS * fragP, | |
4973 | long stretch ATTRIBUTE_UNUSED) | |
2469cfa2 | 4974 | { |
b18c562e NC |
4975 | long growth; |
4976 | offsetT aim = 0; | |
4977 | symbolS *symbolP; | |
4978 | const relax_typeS *this_type; | |
4979 | const relax_typeS *start_type; | |
4980 | relax_substateT next_state; | |
4981 | relax_substateT this_state; | |
4982 | const relax_typeS *table = md_relax_table; | |
4983 | ||
4984 | /* Nothing to be done if the frag has already max size. */ | |
4985 | if (RELAX_STATE (fragP->fr_subtype) == STATE_UNDEF | |
4986 | || RELAX_STATE (fragP->fr_subtype) == STATE_WORD) | |
4987 | return 0; | |
4988 | ||
4989 | if (RELAX_STATE (fragP->fr_subtype) == STATE_BITS10) | |
4990 | { | |
4991 | symbolP = fragP->fr_symbol; | |
4992 | if (symbol_resolved_p (symbolP)) | |
4993 | as_fatal (_("internal inconsistency problem in %s: resolved symbol"), | |
4994 | __FUNCTION__); | |
4995 | /* We know the offset. calculate a distance. */ | |
4996 | aim = S_GET_VALUE (symbolP) - fragP->fr_address - fragP->fr_fix; | |
4997 | } | |
4998 | ||
77592908 DD |
4999 | if (!msp430_enable_relax) |
5000 | { | |
5001 | /* Relaxation is not enabled. So, make all jump as long ones | |
13761a11 | 5002 | by setting 'aim' to quite high value. */ |
77592908 DD |
5003 | aim = 0x7fff; |
5004 | } | |
38d77545 | 5005 | |
b18c562e NC |
5006 | this_state = fragP->fr_subtype; |
5007 | start_type = this_type = table + this_state; | |
5008 | ||
5009 | if (aim < 0) | |
5010 | { | |
5011 | /* Look backwards. */ | |
5012 | for (next_state = this_type->rlx_more; next_state;) | |
3e470ab5 | 5013 | if (aim >= this_type->rlx_backward || !this_type->rlx_backward) |
b18c562e NC |
5014 | next_state = 0; |
5015 | else | |
5016 | { | |
5017 | /* Grow to next state. */ | |
5018 | this_state = next_state; | |
5019 | this_type = table + this_state; | |
5020 | next_state = this_type->rlx_more; | |
5021 | } | |
5022 | } | |
5023 | else | |
5024 | { | |
5025 | /* Look forwards. */ | |
5026 | for (next_state = this_type->rlx_more; next_state;) | |
3e470ab5 | 5027 | if (aim <= this_type->rlx_forward || !this_type->rlx_forward) |
b18c562e NC |
5028 | next_state = 0; |
5029 | else | |
5030 | { | |
5031 | /* Grow to next state. */ | |
5032 | this_state = next_state; | |
5033 | this_type = table + this_state; | |
5034 | next_state = this_type->rlx_more; | |
5035 | } | |
5036 | } | |
5037 | ||
5038 | growth = this_type->rlx_length - start_type->rlx_length; | |
5039 | if (growth != 0) | |
5040 | fragP->fr_subtype = this_state; | |
5041 | return growth; | |
2469cfa2 | 5042 | } |
13761a11 NC |
5043 | |
5044 | /* Return FALSE if the fixup in fixp should be left alone and not | |
5045 | adjusted. We return FALSE here so that linker relaxation will | |
5046 | work. */ | |
5047 | ||
5048 | bfd_boolean | |
5049 | msp430_fix_adjustable (struct fix *fixp ATTRIBUTE_UNUSED) | |
5050 | { | |
5051 | /* If the symbol is in a non-code section then it should be OK. */ | |
5052 | if (fixp->fx_addsy | |
5053 | && ((S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_CODE) == 0)) | |
5054 | return TRUE; | |
38d77545 | 5055 | |
13761a11 NC |
5056 | return FALSE; |
5057 | } | |
5058 | ||
7d81bc93 JL |
5059 | /* Scan uleb128 subtraction expressions and insert fixups for them. |
5060 | e.g., .uleb128 .L1 - .L0 | |
5061 | Because relaxation may change the value of the subtraction, we | |
5062 | must resolve them at link-time. */ | |
13761a11 | 5063 | |
7d81bc93 JL |
5064 | static void |
5065 | msp430_insert_uleb128_fixes (bfd *abfd ATTRIBUTE_UNUSED, | |
5066 | asection *sec, void *xxx ATTRIBUTE_UNUSED) | |
5067 | { | |
5068 | segment_info_type *seginfo = seg_info (sec); | |
5069 | struct frag *fragP; | |
5070 | ||
5071 | subseg_set (sec, 0); | |
5072 | ||
5073 | for (fragP = seginfo->frchainP->frch_root; | |
5074 | fragP; fragP = fragP->fr_next) | |
5075 | { | |
5076 | expressionS *exp, *exp_dup; | |
5077 | ||
5078 | if (fragP->fr_type != rs_leb128 || fragP->fr_symbol == NULL) | |
5079 | continue; | |
5080 | ||
5081 | exp = symbol_get_value_expression (fragP->fr_symbol); | |
5082 | ||
5083 | if (exp->X_op != O_subtract) | |
5084 | continue; | |
5085 | ||
5086 | /* FIXME: Skip for .sleb128. */ | |
5087 | if (fragP->fr_subtype != 0) | |
5088 | continue; | |
5089 | ||
5090 | exp_dup = xmemdup (exp, sizeof (*exp), sizeof (*exp)); | |
5091 | exp_dup->X_op = O_symbol; | |
5092 | exp_dup->X_op_symbol = NULL; | |
5093 | ||
5094 | /* Emit the SUB relocation first, since the SET relocation will write out | |
5095 | the final value. */ | |
5096 | exp_dup->X_add_symbol = exp->X_op_symbol; | |
5097 | fix_new_exp (fragP, fragP->fr_fix, 0, | |
5098 | exp_dup, 0, BFD_RELOC_MSP430_SUB_ULEB128); | |
5099 | ||
5100 | exp_dup->X_add_symbol = exp->X_add_symbol; | |
5101 | /* Insert relocations to resolve the subtraction at link-time. */ | |
5102 | fix_new_exp (fragP, fragP->fr_fix, 0, | |
5103 | exp_dup, 0, BFD_RELOC_MSP430_SET_ULEB128); | |
5104 | ||
5105 | } | |
5106 | } | |
5107 | ||
5108 | /* Called after all assembly has been done. */ | |
13761a11 NC |
5109 | void |
5110 | msp430_md_end (void) | |
5111 | { | |
2213f746 | 5112 | if (check_for_nop) |
35ba4bc0 JL |
5113 | { |
5114 | if (gen_interrupt_nops) | |
5115 | { | |
5116 | gen_nop (); | |
5117 | if (warn_interrupt_nops) | |
5118 | as_warn (INSERT_NOP_AT_EOF); | |
5119 | } | |
5120 | else if (warn_interrupt_nops) | |
5121 | as_warn (_(WARN_NOP_AT_EOF)); | |
5122 | } | |
65d7bab5 | 5123 | |
7d81bc93 JL |
5124 | /* Insert relocations for uleb128 directives, so the values can be recomputed |
5125 | at link time. */ | |
5126 | bfd_map_over_sections (stdoutput, msp430_insert_uleb128_fixes, NULL); | |
5127 | ||
c0ea7c52 JL |
5128 | /* We have already emitted an error if any of the following attributes |
5129 | disagree with the attributes in the input assembly file. See | |
5130 | msp430_object_attribute. */ | |
13761a11 | 5131 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_ISA, |
c0ea7c52 JL |
5132 | target_is_430x () ? OFBA_MSPABI_Val_ISA_MSP430X |
5133 | : OFBA_MSPABI_Val_ISA_MSP430); | |
13761a11 NC |
5134 | |
5135 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_Code_Model, | |
c0ea7c52 JL |
5136 | large_model ? OFBA_MSPABI_Val_Code_Model_LARGE |
5137 | : OFBA_MSPABI_Val_Code_Model_SMALL); | |
13761a11 NC |
5138 | |
5139 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_Data_Model, | |
c0ea7c52 JL |
5140 | large_model ? OFBA_MSPABI_Val_Code_Model_LARGE |
5141 | : OFBA_MSPABI_Val_Code_Model_SMALL); | |
5142 | ||
5143 | /* The data region GNU attribute is ignored for the small memory model. */ | |
5144 | if (large_model) | |
5145 | bfd_elf_add_obj_attr_int (stdoutput, OBJ_ATTR_GNU, | |
5146 | Tag_GNU_MSP430_Data_Region, lower_data_region_only | |
5147 | ? Val_GNU_MSP430_Data_Region_Lower | |
5148 | : Val_GNU_MSP430_Data_Region_Any); | |
13761a11 NC |
5149 | } |
5150 | ||
5151 | /* Returns FALSE if there is a msp430 specific reason why the | |
5152 | subtraction of two same-section symbols cannot be computed by | |
5153 | the assembler. */ | |
5154 | ||
5155 | bfd_boolean | |
5156 | msp430_allow_local_subtract (expressionS * left, | |
5157 | expressionS * right, | |
5158 | segT section) | |
5159 | { | |
5160 | /* If the symbols are not in a code section then they are OK. */ | |
5161 | if ((section->flags & SEC_CODE) == 0) | |
5162 | return TRUE; | |
5163 | ||
5164 | if (S_IS_GAS_LOCAL (left->X_add_symbol) || S_IS_GAS_LOCAL (right->X_add_symbol)) | |
5165 | return TRUE; | |
5166 | ||
5167 | if (left->X_add_symbol == right->X_add_symbol) | |
5168 | return TRUE; | |
5169 | ||
5170 | /* We have to assume that there may be instructions between the | |
5171 | two symbols and that relaxation may increase the distance between | |
5172 | them. */ | |
5173 | return FALSE; | |
5174 | } |