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2469cfa2 NC |
1 | /* tc-msp430.c -- Assembler code for the Texas Instruments MSP430 |
2 | ||
6f2750fe | 3 | Copyright (C) 2002-2016 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 | ||
197 | static struct hash_control *msp430_hash; | |
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. */ | |
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 */ | |
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 | |
00b32ff2 NC |
278 | /* Generate an absolute 16-bit relocation. |
279 | For the 430X we generate a relocation without linker range checking | |
280 | if the value is being used in an extended (ie 20-bit) instruction, | |
281 | otherwise if have a shifted expression we use a HI reloc. | |
13761a11 | 282 | For the 430 we generate a relocation without assembler range checking |
00b32ff2 NC |
283 | if we are handling an immediate value or a byte-width instruction. */ |
284 | ||
13761a11 | 285 | #undef CHECK_RELOC_MSP430 |
00b32ff2 NC |
286 | #define CHECK_RELOC_MSP430(OP) \ |
287 | (target_is_430x () \ | |
288 | ? (extended_op \ | |
289 | ? BFD_RELOC_16 \ | |
290 | : ((OP).vshift == 1) \ | |
291 | ? BFD_RELOC_MSP430_ABS_HI16 \ | |
292 | : BFD_RELOC_MSP430X_ABS16) \ | |
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. | |
297 | For the 430X we generate a relocation without linkwer range checking. | |
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")); | |
418 | return input_line_pointer; | |
419 | } | |
2469cfa2 | 420 | |
b18c562e NC |
421 | |
422 | /* Delete spaces from s: X ( r 1 2) => X(r12). */ | |
2469cfa2 NC |
423 | |
424 | static void | |
b18c562e | 425 | del_spaces (char * s) |
2469cfa2 | 426 | { |
b18c562e NC |
427 | while (*s) |
428 | { | |
429 | if (ISSPACE (*s)) | |
430 | { | |
431 | char *m = s + 1; | |
2469cfa2 | 432 | |
b18c562e NC |
433 | while (ISSPACE (*m) && *m) |
434 | m++; | |
435 | memmove (s, m, strlen (m) + 1); | |
436 | } | |
437 | else | |
438 | s++; | |
439 | } | |
440 | } | |
2469cfa2 | 441 | |
b18c562e NC |
442 | static inline char * |
443 | skip_space (char * s) | |
444 | { | |
445 | while (ISSPACE (*s)) | |
446 | ++s; | |
447 | return s; | |
448 | } | |
2469cfa2 | 449 | |
708587a4 | 450 | /* Extract one word from FROM and copy it to TO. Delimiters are ",;\n" */ |
b18c562e NC |
451 | |
452 | static char * | |
453 | extract_operand (char * from, char * to, int limit) | |
454 | { | |
455 | int size = 0; | |
456 | ||
457 | /* Drop leading whitespace. */ | |
458 | from = skip_space (from); | |
459 | ||
460 | while (size < limit && *from) | |
461 | { | |
462 | *(to + size) = *from; | |
463 | if (*from == ',' || *from == ';' || *from == '\n') | |
464 | break; | |
465 | from++; | |
466 | size++; | |
467 | } | |
468 | ||
469 | *(to + size) = 0; | |
470 | del_spaces (to); | |
471 | ||
472 | from++; | |
473 | ||
474 | return from; | |
2469cfa2 NC |
475 | } |
476 | ||
b18c562e NC |
477 | static void |
478 | msp430_profiler (int dummy ATTRIBUTE_UNUSED) | |
2469cfa2 | 479 | { |
b18c562e NC |
480 | char buffer[1024]; |
481 | char f[32]; | |
482 | char * str = buffer; | |
483 | char * flags = f; | |
484 | int p_flags = 0; | |
485 | char * halt; | |
486 | int ops = 0; | |
487 | int left; | |
488 | char * s; | |
489 | segT seg; | |
490 | int subseg; | |
491 | char * end = 0; | |
492 | expressionS exp; | |
493 | expressionS exp1; | |
494 | ||
495 | s = input_line_pointer; | |
496 | end = input_line_pointer; | |
497 | ||
498 | while (*end && *end != '\n') | |
499 | end++; | |
500 | ||
501 | while (*s && *s != '\n') | |
502 | { | |
503 | if (*s == ',') | |
504 | ops++; | |
505 | s++; | |
506 | } | |
2469cfa2 | 507 | |
b18c562e NC |
508 | left = 3 - ops; |
509 | ||
510 | if (ops < 1) | |
511 | { | |
512 | as_bad (_(".profiler pseudo requires at least two operands.")); | |
513 | input_line_pointer = end; | |
514 | return; | |
515 | } | |
516 | ||
517 | input_line_pointer = extract_operand (input_line_pointer, flags, 32); | |
518 | ||
519 | while (*flags) | |
520 | { | |
521 | switch (*flags) | |
522 | { | |
523 | case '"': | |
524 | break; | |
525 | case 'a': | |
526 | p_flags |= MSP430_PROFILER_FLAG_FRAGMENT; | |
527 | break; | |
528 | case 'j': | |
529 | p_flags |= MSP430_PROFILER_FLAG_JUMP; | |
530 | break; | |
531 | case 'P': | |
532 | p_flags |= MSP430_PROFILER_FLAG_PROLSTART; | |
533 | break; | |
534 | case 'p': | |
535 | p_flags |= MSP430_PROFILER_FLAG_PROLEND; | |
536 | break; | |
537 | case 'E': | |
538 | p_flags |= MSP430_PROFILER_FLAG_EPISTART; | |
539 | break; | |
540 | case 'e': | |
541 | p_flags |= MSP430_PROFILER_FLAG_EPIEND; | |
542 | break; | |
543 | case 's': | |
544 | p_flags |= MSP430_PROFILER_FLAG_ENTRY; | |
545 | break; | |
546 | case 'x': | |
547 | p_flags |= MSP430_PROFILER_FLAG_EXIT; | |
548 | break; | |
549 | case 'i': | |
550 | p_flags |= MSP430_PROFILER_FLAG_INITSECT; | |
551 | break; | |
552 | case 'f': | |
553 | p_flags |= MSP430_PROFILER_FLAG_FINISECT; | |
554 | break; | |
555 | case 'l': | |
556 | p_flags |= MSP430_PROFILER_FLAG_LIBCALL; | |
557 | break; | |
558 | case 'c': | |
559 | p_flags |= MSP430_PROFILER_FLAG_STDCALL; | |
560 | break; | |
561 | case 'd': | |
562 | p_flags |= MSP430_PROFILER_FLAG_STACKDMD; | |
563 | break; | |
564 | case 'I': | |
565 | p_flags |= MSP430_PROFILER_FLAG_ISR; | |
566 | break; | |
567 | case 't': | |
568 | p_flags |= MSP430_PROFILER_FLAG_EXTRA; | |
569 | break; | |
570 | default: | |
571 | as_warn (_("unknown profiling flag - ignored.")); | |
572 | break; | |
573 | } | |
574 | flags++; | |
575 | } | |
576 | ||
577 | if (p_flags | |
578 | && ( ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_ENTRY | |
579 | | MSP430_PROFILER_FLAG_EXIT)) | |
580 | || ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_PROLSTART | |
581 | | MSP430_PROFILER_FLAG_PROLEND | |
582 | | MSP430_PROFILER_FLAG_EPISTART | |
583 | | MSP430_PROFILER_FLAG_EPIEND)) | |
584 | || ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_INITSECT | |
585 | | MSP430_PROFILER_FLAG_FINISECT)))) | |
586 | { | |
79cf5950 | 587 | as_bad (_("ambiguous flags combination - '.profiler' directive ignored.")); |
b18c562e NC |
588 | input_line_pointer = end; |
589 | return; | |
590 | } | |
591 | ||
592 | /* Generate temp symbol which denotes current location. */ | |
79cf5950 | 593 | if (now_seg == absolute_section) /* Paranoia ? */ |
b18c562e NC |
594 | { |
595 | exp1.X_op = O_constant; | |
596 | exp1.X_add_number = abs_section_offset; | |
79cf5950 | 597 | as_warn (_("profiling in absolute section?")); |
b18c562e NC |
598 | } |
599 | else | |
600 | { | |
601 | exp1.X_op = O_symbol; | |
602 | exp1.X_add_symbol = symbol_temp_new_now (); | |
603 | exp1.X_add_number = 0; | |
604 | } | |
605 | ||
606 | /* Generate a symbol which holds flags value. */ | |
607 | exp.X_op = O_constant; | |
608 | exp.X_add_number = p_flags; | |
609 | ||
610 | /* Save current section. */ | |
611 | seg = now_seg; | |
612 | subseg = now_subseg; | |
613 | ||
614 | /* Now go to .profiler section. */ | |
615 | obj_elf_change_section (".profiler", SHT_PROGBITS, 0, 0, 0, 0, 0); | |
616 | ||
617 | /* Save flags. */ | |
618 | emit_expr (& exp, 2); | |
619 | ||
620 | /* Save label value. */ | |
621 | emit_expr (& exp1, 2); | |
622 | ||
623 | while (ops--) | |
624 | { | |
625 | /* Now get profiling info. */ | |
626 | halt = extract_operand (input_line_pointer, str, 1024); | |
627 | /* Process like ".word xxx" directive. */ | |
628 | parse_exp (str, & exp); | |
629 | emit_expr (& exp, 2); | |
630 | input_line_pointer = halt; | |
631 | } | |
632 | ||
633 | /* Fill the rest with zeros. */ | |
634 | exp.X_op = O_constant; | |
635 | exp.X_add_number = 0; | |
636 | while (left--) | |
637 | emit_expr (& exp, 2); | |
638 | ||
639 | /* Return to current section. */ | |
640 | subseg_set (seg, subseg); | |
2469cfa2 NC |
641 | } |
642 | ||
643 | static char * | |
b18c562e | 644 | extract_word (char * from, char * to, int limit) |
2469cfa2 | 645 | { |
2469cfa2 NC |
646 | char *op_end; |
647 | int size = 0; | |
648 | ||
649 | /* Drop leading whitespace. */ | |
650 | from = skip_space (from); | |
651 | *to = 0; | |
652 | ||
653 | /* Find the op code end. */ | |
87975d2a | 654 | for (op_end = from; *op_end != 0 && is_part_of_name (*op_end);) |
2469cfa2 NC |
655 | { |
656 | to[size++] = *op_end++; | |
657 | if (size + 1 >= limit) | |
658 | break; | |
659 | } | |
660 | ||
661 | to[size] = 0; | |
662 | return op_end; | |
663 | } | |
664 | ||
b18c562e | 665 | #define OPTION_MMCU 'm' |
77592908 DD |
666 | #define OPTION_RELAX 'Q' |
667 | #define OPTION_POLYMORPHS 'P' | |
13761a11 NC |
668 | #define OPTION_LARGE 'l' |
669 | static bfd_boolean large_model = FALSE; | |
670 | #define OPTION_NO_INTR_NOPS 'N' | |
65d7bab5 | 671 | #define OPTION_INTR_NOPS 'n' |
a75555d1 | 672 | static bfd_boolean gen_interrupt_nops = FALSE; |
69227609 NC |
673 | #define OPTION_WARN_INTR_NOPS 'y' |
674 | #define OPTION_NO_WARN_INTR_NOPS 'Y' | |
65d7bab5 | 675 | static bfd_boolean warn_interrupt_nops = TRUE; |
638d3803 | 676 | #define OPTION_MCPU 'c' |
ab905915 NC |
677 | #define OPTION_MOVE_DATA 'd' |
678 | static bfd_boolean move_data = FALSE; | |
b18c562e | 679 | |
2213f746 NC |
680 | enum |
681 | { | |
682 | OPTION_SILICON_ERRATA = OPTION_MD_BASE, | |
683 | OPTION_SILICON_ERRATA_WARN, | |
85e53f62 | 684 | }; |
2213f746 NC |
685 | |
686 | static unsigned int silicon_errata_fix = 0; | |
687 | static unsigned int silicon_errata_warn = 0; | |
688 | #define SILICON_ERRATA_CPU4 (1 << 0) | |
689 | #define SILICON_ERRATA_CPU8 (1 << 1) | |
690 | #define SILICON_ERRATA_CPU11 (1 << 2) | |
691 | #define SILICON_ERRATA_CPU12 (1 << 3) | |
692 | #define SILICON_ERRATA_CPU13 (1 << 4) | |
693 | #define SILICON_ERRATA_CPU19 (1 << 5) | |
2213f746 | 694 | |
2469cfa2 | 695 | static void |
638d3803 | 696 | msp430_set_arch (int option) |
2469cfa2 | 697 | { |
e1fa0163 | 698 | char str[32]; /* 32 for good measure. */ |
2469cfa2 NC |
699 | |
700 | input_line_pointer = extract_word (input_line_pointer, str, 32); | |
701 | ||
638d3803 NC |
702 | md_parse_option (option, str); |
703 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, | |
704 | target_is_430x () ? bfd_mach_msp430x : bfd_mach_msp11); | |
2469cfa2 NC |
705 | } |
706 | ||
ede77e69 NC |
707 | /* This is a copy of the same data structure found in gcc/config/msp430/msp430.c |
708 | Keep these two structures in sync. | |
709 | The data in this structure has been extracted from the devices.csv file | |
b27c40ec | 710 | released by TI, updated as of March 2016. */ |
ede77e69 NC |
711 | |
712 | struct msp430_mcu_data | |
65d7bab5 | 713 | { |
ede77e69 NC |
714 | const char * name; |
715 | unsigned int revision; /* 0=> MSP430, 1=>MSP430X, 2=> MSP430Xv2. */ | |
716 | unsigned int hwmpy; /* 0=>none, 1=>16-bit, 2=>16-bit w/sign extend, 4=>32-bit, 8=> 32-bit (5xx). */ | |
717 | } | |
718 | msp430_mcu_data [] = | |
719 | { | |
720 | { "cc430f5123",2,8 }, | |
721 | { "cc430f5125",2,8 }, | |
722 | { "cc430f5133",2,8 }, | |
723 | { "cc430f5135",2,8 }, | |
724 | { "cc430f5137",2,8 }, | |
725 | { "cc430f5143",2,8 }, | |
726 | { "cc430f5145",2,8 }, | |
727 | { "cc430f5147",2,8 }, | |
728 | { "cc430f6125",2,8 }, | |
729 | { "cc430f6126",2,8 }, | |
730 | { "cc430f6127",2,8 }, | |
731 | { "cc430f6135",2,8 }, | |
732 | { "cc430f6137",2,8 }, | |
733 | { "cc430f6143",2,8 }, | |
734 | { "cc430f6145",2,8 }, | |
735 | { "cc430f6147",2,8 }, | |
736 | { "msp430afe221",0,2 }, | |
737 | { "msp430afe222",0,2 }, | |
738 | { "msp430afe223",0,2 }, | |
739 | { "msp430afe231",0,2 }, | |
740 | { "msp430afe232",0,2 }, | |
741 | { "msp430afe233",0,2 }, | |
742 | { "msp430afe251",0,2 }, | |
743 | { "msp430afe252",0,2 }, | |
744 | { "msp430afe253",0,2 }, | |
745 | { "msp430bt5190",2,8 }, | |
746 | { "msp430c091",0,0 }, | |
747 | { "msp430c092",0,0 }, | |
748 | { "msp430c111",0,0 }, | |
749 | { "msp430c1111",0,0 }, | |
750 | { "msp430c112",0,0 }, | |
751 | { "msp430c1121",0,0 }, | |
752 | { "msp430c1331",0,0 }, | |
753 | { "msp430c1351",0,0 }, | |
754 | { "msp430c311s",0,0 }, | |
755 | { "msp430c312",0,0 }, | |
756 | { "msp430c313",0,0 }, | |
757 | { "msp430c314",0,0 }, | |
758 | { "msp430c315",0,0 }, | |
759 | { "msp430c323",0,0 }, | |
760 | { "msp430c325",0,0 }, | |
761 | { "msp430c336",0,1 }, | |
762 | { "msp430c337",0,1 }, | |
763 | { "msp430c412",0,0 }, | |
764 | { "msp430c413",0,0 }, | |
765 | { "msp430cg4616",1,1 }, | |
766 | { "msp430cg4617",1,1 }, | |
767 | { "msp430cg4618",1,1 }, | |
768 | { "msp430cg4619",1,1 }, | |
769 | { "msp430e112",0,0 }, | |
770 | { "msp430e313",0,0 }, | |
771 | { "msp430e315",0,0 }, | |
772 | { "msp430e325",0,0 }, | |
773 | { "msp430e337",0,1 }, | |
774 | { "msp430f110",0,0 }, | |
775 | { "msp430f1101",0,0 }, | |
776 | { "msp430f1101a",0,0 }, | |
777 | { "msp430f1111",0,0 }, | |
778 | { "msp430f1111a",0,0 }, | |
779 | { "msp430f112",0,0 }, | |
780 | { "msp430f1121",0,0 }, | |
781 | { "msp430f1121a",0,0 }, | |
782 | { "msp430f1122",0,0 }, | |
783 | { "msp430f1132",0,0 }, | |
784 | { "msp430f122",0,0 }, | |
785 | { "msp430f1222",0,0 }, | |
786 | { "msp430f123",0,0 }, | |
787 | { "msp430f1232",0,0 }, | |
788 | { "msp430f133",0,0 }, | |
789 | { "msp430f135",0,0 }, | |
790 | { "msp430f147",0,1 }, | |
791 | { "msp430f1471",0,1 }, | |
792 | { "msp430f148",0,1 }, | |
793 | { "msp430f1481",0,1 }, | |
794 | { "msp430f149",0,1 }, | |
795 | { "msp430f1491",0,1 }, | |
796 | { "msp430f155",0,0 }, | |
797 | { "msp430f156",0,0 }, | |
798 | { "msp430f157",0,0 }, | |
799 | { "msp430f1610",0,1 }, | |
800 | { "msp430f1611",0,1 }, | |
801 | { "msp430f1612",0,1 }, | |
802 | { "msp430f167",0,1 }, | |
803 | { "msp430f168",0,1 }, | |
804 | { "msp430f169",0,1 }, | |
805 | { "msp430f2001",0,0 }, | |
806 | { "msp430f2002",0,0 }, | |
807 | { "msp430f2003",0,0 }, | |
808 | { "msp430f2011",0,0 }, | |
809 | { "msp430f2012",0,0 }, | |
810 | { "msp430f2013",0,0 }, | |
811 | { "msp430f2101",0,0 }, | |
812 | { "msp430f2111",0,0 }, | |
813 | { "msp430f2112",0,0 }, | |
814 | { "msp430f2121",0,0 }, | |
815 | { "msp430f2122",0,0 }, | |
816 | { "msp430f2131",0,0 }, | |
817 | { "msp430f2132",0,0 }, | |
818 | { "msp430f2232",0,0 }, | |
819 | { "msp430f2234",0,0 }, | |
820 | { "msp430f2252",0,0 }, | |
821 | { "msp430f2254",0,0 }, | |
822 | { "msp430f2272",0,0 }, | |
823 | { "msp430f2274",0,0 }, | |
824 | { "msp430f233",0,2 }, | |
825 | { "msp430f2330",0,2 }, | |
826 | { "msp430f235",0,2 }, | |
827 | { "msp430f2350",0,2 }, | |
828 | { "msp430f2370",0,2 }, | |
829 | { "msp430f2410",0,2 }, | |
830 | { "msp430f2416",1,2 }, | |
831 | { "msp430f2417",1,2 }, | |
832 | { "msp430f2418",1,2 }, | |
833 | { "msp430f2419",1,2 }, | |
834 | { "msp430f247",0,2 }, | |
835 | { "msp430f2471",0,2 }, | |
836 | { "msp430f248",0,2 }, | |
837 | { "msp430f2481",0,2 }, | |
838 | { "msp430f249",0,2 }, | |
839 | { "msp430f2491",0,2 }, | |
840 | { "msp430f2616",1,2 }, | |
841 | { "msp430f2617",1,2 }, | |
842 | { "msp430f2618",1,2 }, | |
843 | { "msp430f2619",1,2 }, | |
844 | { "msp430f412",0,0 }, | |
845 | { "msp430f413",0,0 }, | |
846 | { "msp430f4132",0,0 }, | |
847 | { "msp430f415",0,0 }, | |
848 | { "msp430f4152",0,0 }, | |
849 | { "msp430f417",0,0 }, | |
850 | { "msp430f423",0,1 }, | |
851 | { "msp430f423a",0,1 }, | |
852 | { "msp430f425",0,1 }, | |
853 | { "msp430f4250",0,0 }, | |
854 | { "msp430f425a",0,1 }, | |
855 | { "msp430f4260",0,0 }, | |
856 | { "msp430f427",0,1 }, | |
857 | { "msp430f4270",0,0 }, | |
858 | { "msp430f427a",0,1 }, | |
859 | { "msp430f435",0,0 }, | |
860 | { "msp430f4351",0,0 }, | |
861 | { "msp430f436",0,0 }, | |
862 | { "msp430f4361",0,0 }, | |
863 | { "msp430f437",0,0 }, | |
864 | { "msp430f4371",0,0 }, | |
865 | { "msp430f438",0,0 }, | |
866 | { "msp430f439",0,0 }, | |
867 | { "msp430f447",0,1 }, | |
868 | { "msp430f448",0,1 }, | |
869 | { "msp430f4481",0,1 }, | |
870 | { "msp430f449",0,1 }, | |
871 | { "msp430f4491",0,1 }, | |
872 | { "msp430f4616",1,1 }, | |
873 | { "msp430f46161",1,1 }, | |
874 | { "msp430f4617",1,1 }, | |
875 | { "msp430f46171",1,1 }, | |
876 | { "msp430f4618",1,1 }, | |
877 | { "msp430f46181",1,1 }, | |
878 | { "msp430f4619",1,1 }, | |
879 | { "msp430f46191",1,1 }, | |
880 | { "msp430f47126",1,4 }, | |
881 | { "msp430f47127",1,4 }, | |
882 | { "msp430f47163",1,4 }, | |
883 | { "msp430f47166",1,4 }, | |
884 | { "msp430f47167",1,4 }, | |
885 | { "msp430f47173",1,4 }, | |
886 | { "msp430f47176",1,4 }, | |
887 | { "msp430f47177",1,4 }, | |
888 | { "msp430f47183",1,4 }, | |
889 | { "msp430f47186",1,4 }, | |
890 | { "msp430f47187",1,4 }, | |
891 | { "msp430f47193",1,4 }, | |
892 | { "msp430f47196",1,4 }, | |
893 | { "msp430f47197",1,4 }, | |
894 | { "msp430f477",0,0 }, | |
895 | { "msp430f478",0,0 }, | |
896 | { "msp430f4783",0,4 }, | |
897 | { "msp430f4784",0,4 }, | |
898 | { "msp430f479",0,0 }, | |
899 | { "msp430f4793",0,4 }, | |
900 | { "msp430f4794",0,4 }, | |
901 | { "msp430f5131",2,8 }, | |
902 | { "msp430f5132",2,8 }, | |
903 | { "msp430f5151",2,8 }, | |
904 | { "msp430f5152",2,8 }, | |
905 | { "msp430f5171",2,8 }, | |
906 | { "msp430f5172",2,8 }, | |
907 | { "msp430f5212",2,8 }, | |
908 | { "msp430f5213",2,8 }, | |
909 | { "msp430f5214",2,8 }, | |
910 | { "msp430f5217",2,8 }, | |
911 | { "msp430f5218",2,8 }, | |
912 | { "msp430f5219",2,8 }, | |
913 | { "msp430f5222",2,8 }, | |
914 | { "msp430f5223",2,8 }, | |
915 | { "msp430f5224",2,8 }, | |
916 | { "msp430f5227",2,8 }, | |
917 | { "msp430f5228",2,8 }, | |
918 | { "msp430f5229",2,8 }, | |
919 | { "msp430f5232",2,8 }, | |
920 | { "msp430f5234",2,8 }, | |
921 | { "msp430f5237",2,8 }, | |
922 | { "msp430f5239",2,8 }, | |
923 | { "msp430f5242",2,8 }, | |
924 | { "msp430f5244",2,8 }, | |
925 | { "msp430f5247",2,8 }, | |
926 | { "msp430f5249",2,8 }, | |
927 | { "msp430f5252",2,8 }, | |
928 | { "msp430f5253",2,8 }, | |
929 | { "msp430f5254",2,8 }, | |
930 | { "msp430f5255",2,8 }, | |
931 | { "msp430f5256",2,8 }, | |
932 | { "msp430f5257",2,8 }, | |
933 | { "msp430f5258",2,8 }, | |
934 | { "msp430f5259",2,8 }, | |
935 | { "msp430f5304",2,8 }, | |
936 | { "msp430f5308",2,8 }, | |
937 | { "msp430f5309",2,8 }, | |
938 | { "msp430f5310",2,8 }, | |
939 | { "msp430f5324",2,8 }, | |
940 | { "msp430f5325",2,8 }, | |
941 | { "msp430f5326",2,8 }, | |
942 | { "msp430f5327",2,8 }, | |
943 | { "msp430f5328",2,8 }, | |
944 | { "msp430f5329",2,8 }, | |
945 | { "msp430f5333",2,8 }, | |
946 | { "msp430f5335",2,8 }, | |
947 | { "msp430f5336",2,8 }, | |
948 | { "msp430f5338",2,8 }, | |
949 | { "msp430f5340",2,8 }, | |
950 | { "msp430f5341",2,8 }, | |
951 | { "msp430f5342",2,8 }, | |
952 | { "msp430f5358",2,8 }, | |
953 | { "msp430f5359",2,8 }, | |
954 | { "msp430f5418",2,8 }, | |
955 | { "msp430f5418a",2,8 }, | |
956 | { "msp430f5419",2,8 }, | |
957 | { "msp430f5419a",2,8 }, | |
958 | { "msp430f5435",2,8 }, | |
959 | { "msp430f5435a",2,8 }, | |
960 | { "msp430f5436",2,8 }, | |
961 | { "msp430f5436a",2,8 }, | |
962 | { "msp430f5437",2,8 }, | |
963 | { "msp430f5437a",2,8 }, | |
964 | { "msp430f5438",2,8 }, | |
965 | { "msp430f5438a",2,8 }, | |
966 | { "msp430f5500",2,8 }, | |
967 | { "msp430f5501",2,8 }, | |
968 | { "msp430f5502",2,8 }, | |
969 | { "msp430f5503",2,8 }, | |
970 | { "msp430f5504",2,8 }, | |
971 | { "msp430f5505",2,8 }, | |
972 | { "msp430f5506",2,8 }, | |
973 | { "msp430f5507",2,8 }, | |
974 | { "msp430f5508",2,8 }, | |
975 | { "msp430f5509",2,8 }, | |
976 | { "msp430f5510",2,8 }, | |
977 | { "msp430f5513",2,8 }, | |
978 | { "msp430f5514",2,8 }, | |
979 | { "msp430f5515",2,8 }, | |
980 | { "msp430f5517",2,8 }, | |
981 | { "msp430f5519",2,8 }, | |
982 | { "msp430f5521",2,8 }, | |
983 | { "msp430f5522",2,8 }, | |
984 | { "msp430f5524",2,8 }, | |
985 | { "msp430f5525",2,8 }, | |
986 | { "msp430f5526",2,8 }, | |
987 | { "msp430f5527",2,8 }, | |
988 | { "msp430f5528",2,8 }, | |
989 | { "msp430f5529",2,8 }, | |
990 | { "msp430f5630",2,8 }, | |
991 | { "msp430f5631",2,8 }, | |
992 | { "msp430f5632",2,8 }, | |
993 | { "msp430f5633",2,8 }, | |
994 | { "msp430f5634",2,8 }, | |
995 | { "msp430f5635",2,8 }, | |
996 | { "msp430f5636",2,8 }, | |
997 | { "msp430f5637",2,8 }, | |
998 | { "msp430f5638",2,8 }, | |
999 | { "msp430f5658",2,8 }, | |
1000 | { "msp430f5659",2,8 }, | |
1001 | { "msp430f5xx_6xxgeneric",2,8 }, | |
1002 | { "msp430f6433",2,8 }, | |
1003 | { "msp430f6435",2,8 }, | |
1004 | { "msp430f6436",2,8 }, | |
1005 | { "msp430f6438",2,8 }, | |
1006 | { "msp430f6458",2,8 }, | |
1007 | { "msp430f6459",2,8 }, | |
1008 | { "msp430f6630",2,8 }, | |
1009 | { "msp430f6631",2,8 }, | |
1010 | { "msp430f6632",2,8 }, | |
1011 | { "msp430f6633",2,8 }, | |
1012 | { "msp430f6634",2,8 }, | |
1013 | { "msp430f6635",2,8 }, | |
1014 | { "msp430f6636",2,8 }, | |
1015 | { "msp430f6637",2,8 }, | |
1016 | { "msp430f6638",2,8 }, | |
1017 | { "msp430f6658",2,8 }, | |
1018 | { "msp430f6659",2,8 }, | |
1019 | { "msp430f6720",2,8 }, | |
1020 | { "msp430f6720a",2,8 }, | |
1021 | { "msp430f6721",2,8 }, | |
1022 | { "msp430f6721a",2,8 }, | |
1023 | { "msp430f6723",2,8 }, | |
1024 | { "msp430f6723a",2,8 }, | |
1025 | { "msp430f6724",2,8 }, | |
1026 | { "msp430f6724a",2,8 }, | |
1027 | { "msp430f6725",2,8 }, | |
1028 | { "msp430f6725a",2,8 }, | |
1029 | { "msp430f6726",2,8 }, | |
1030 | { "msp430f6726a",2,8 }, | |
1031 | { "msp430f6730",2,8 }, | |
1032 | { "msp430f6730a",2,8 }, | |
1033 | { "msp430f6731",2,8 }, | |
1034 | { "msp430f6731a",2,8 }, | |
1035 | { "msp430f6733",2,8 }, | |
1036 | { "msp430f6733a",2,8 }, | |
1037 | { "msp430f6734",2,8 }, | |
1038 | { "msp430f6734a",2,8 }, | |
1039 | { "msp430f6735",2,8 }, | |
1040 | { "msp430f6735a",2,8 }, | |
1041 | { "msp430f6736",2,8 }, | |
1042 | { "msp430f6736a",2,8 }, | |
1043 | { "msp430f6745",2,8 }, | |
1044 | { "msp430f67451",2,8 }, | |
1045 | { "msp430f67451a",2,8 }, | |
1046 | { "msp430f6745a",2,8 }, | |
1047 | { "msp430f6746",2,8 }, | |
1048 | { "msp430f67461",2,8 }, | |
1049 | { "msp430f67461a",2,8 }, | |
1050 | { "msp430f6746a",2,8 }, | |
1051 | { "msp430f6747",2,8 }, | |
1052 | { "msp430f67471",2,8 }, | |
1053 | { "msp430f67471a",2,8 }, | |
1054 | { "msp430f6747a",2,8 }, | |
1055 | { "msp430f6748",2,8 }, | |
1056 | { "msp430f67481",2,8 }, | |
1057 | { "msp430f67481a",2,8 }, | |
1058 | { "msp430f6748a",2,8 }, | |
1059 | { "msp430f6749",2,8 }, | |
1060 | { "msp430f67491",2,8 }, | |
1061 | { "msp430f67491a",2,8 }, | |
1062 | { "msp430f6749a",2,8 }, | |
1063 | { "msp430f67621",2,8 }, | |
1064 | { "msp430f67621a",2,8 }, | |
1065 | { "msp430f67641",2,8 }, | |
1066 | { "msp430f67641a",2,8 }, | |
1067 | { "msp430f6765",2,8 }, | |
1068 | { "msp430f67651",2,8 }, | |
1069 | { "msp430f67651a",2,8 }, | |
1070 | { "msp430f6765a",2,8 }, | |
1071 | { "msp430f6766",2,8 }, | |
1072 | { "msp430f67661",2,8 }, | |
1073 | { "msp430f67661a",2,8 }, | |
1074 | { "msp430f6766a",2,8 }, | |
1075 | { "msp430f6767",2,8 }, | |
1076 | { "msp430f67671",2,8 }, | |
1077 | { "msp430f67671a",2,8 }, | |
1078 | { "msp430f6767a",2,8 }, | |
1079 | { "msp430f6768",2,8 }, | |
1080 | { "msp430f67681",2,8 }, | |
1081 | { "msp430f67681a",2,8 }, | |
1082 | { "msp430f6768a",2,8 }, | |
1083 | { "msp430f6769",2,8 }, | |
1084 | { "msp430f67691",2,8 }, | |
1085 | { "msp430f67691a",2,8 }, | |
1086 | { "msp430f6769a",2,8 }, | |
1087 | { "msp430f6775",2,8 }, | |
1088 | { "msp430f67751",2,8 }, | |
1089 | { "msp430f67751a",2,8 }, | |
1090 | { "msp430f6775a",2,8 }, | |
1091 | { "msp430f6776",2,8 }, | |
1092 | { "msp430f67761",2,8 }, | |
1093 | { "msp430f67761a",2,8 }, | |
1094 | { "msp430f6776a",2,8 }, | |
1095 | { "msp430f6777",2,8 }, | |
1096 | { "msp430f67771",2,8 }, | |
1097 | { "msp430f67771a",2,8 }, | |
1098 | { "msp430f6777a",2,8 }, | |
1099 | { "msp430f6778",2,8 }, | |
1100 | { "msp430f67781",2,8 }, | |
1101 | { "msp430f67781a",2,8 }, | |
1102 | { "msp430f6778a",2,8 }, | |
1103 | { "msp430f6779",2,8 }, | |
1104 | { "msp430f67791",2,8 }, | |
1105 | { "msp430f67791a",2,8 }, | |
1106 | { "msp430f6779a",2,8 }, | |
1107 | { "msp430fe423",0,0 }, | |
1108 | { "msp430fe4232",0,0 }, | |
1109 | { "msp430fe423a",0,0 }, | |
1110 | { "msp430fe4242",0,0 }, | |
1111 | { "msp430fe425",0,0 }, | |
1112 | { "msp430fe4252",0,0 }, | |
1113 | { "msp430fe425a",0,0 }, | |
1114 | { "msp430fe427",0,0 }, | |
1115 | { "msp430fe4272",0,0 }, | |
1116 | { "msp430fe427a",0,0 }, | |
1117 | { "msp430fg4250",0,0 }, | |
1118 | { "msp430fg4260",0,0 }, | |
1119 | { "msp430fg4270",0,0 }, | |
1120 | { "msp430fg437",0,0 }, | |
1121 | { "msp430fg438",0,0 }, | |
1122 | { "msp430fg439",0,0 }, | |
1123 | { "msp430fg4616",1,1 }, | |
1124 | { "msp430fg4617",1,1 }, | |
1125 | { "msp430fg4618",1,1 }, | |
1126 | { "msp430fg4619",1,1 }, | |
1127 | { "msp430fg477",0,0 }, | |
1128 | { "msp430fg478",0,0 }, | |
1129 | { "msp430fg479",0,0 }, | |
1130 | { "msp430fg6425",2,8 }, | |
1131 | { "msp430fg6426",2,8 }, | |
1132 | { "msp430fg6625",2,8 }, | |
1133 | { "msp430fg6626",2,8 }, | |
1134 | { "msp430fr2032",2,0 }, | |
1135 | { "msp430fr2033",2,0 }, | |
b27c40ec NC |
1136 | { "msp430fr2310",2,0 }, |
1137 | { "msp430fr2311",2,0 }, | |
ede77e69 | 1138 | { "msp430fr2433",2,8 }, |
b27c40ec NC |
1139 | { "msp430fr2532",2,8 }, |
1140 | { "msp430fr2533",2,8 }, | |
1141 | { "msp430fr2632",2,8 }, | |
1142 | { "msp430fr2633",2,8 }, | |
ede77e69 NC |
1143 | { "msp430fr2xx_4xxgeneric",2,8 }, |
1144 | { "msp430fr4131",2,0 }, | |
1145 | { "msp430fr4132",2,0 }, | |
1146 | { "msp430fr4133",2,0 }, | |
1147 | { "msp430fr5720",2,8 }, | |
1148 | { "msp430fr5721",2,8 }, | |
1149 | { "msp430fr5722",2,8 }, | |
1150 | { "msp430fr5723",2,8 }, | |
1151 | { "msp430fr5724",2,8 }, | |
1152 | { "msp430fr5725",2,8 }, | |
1153 | { "msp430fr5726",2,8 }, | |
1154 | { "msp430fr5727",2,8 }, | |
1155 | { "msp430fr5728",2,8 }, | |
1156 | { "msp430fr5729",2,8 }, | |
1157 | { "msp430fr5730",2,8 }, | |
1158 | { "msp430fr5731",2,8 }, | |
1159 | { "msp430fr5732",2,8 }, | |
1160 | { "msp430fr5733",2,8 }, | |
1161 | { "msp430fr5734",2,8 }, | |
1162 | { "msp430fr5735",2,8 }, | |
1163 | { "msp430fr5736",2,8 }, | |
1164 | { "msp430fr5737",2,8 }, | |
1165 | { "msp430fr5738",2,8 }, | |
1166 | { "msp430fr5739",2,8 }, | |
1167 | { "msp430fr57xxgeneric",2,8 }, | |
1168 | { "msp430fr5847",2,8 }, | |
1169 | { "msp430fr58471",2,8 }, | |
1170 | { "msp430fr5848",2,8 }, | |
1171 | { "msp430fr5849",2,8 }, | |
1172 | { "msp430fr5857",2,8 }, | |
1173 | { "msp430fr5858",2,8 }, | |
1174 | { "msp430fr5859",2,8 }, | |
1175 | { "msp430fr5867",2,8 }, | |
b27c40ec NC |
1176 | { "msp430fr5862",2,8 }, |
1177 | { "msp430fr5864",2,8 }, | |
ede77e69 NC |
1178 | { "msp430fr58671",2,8 }, |
1179 | { "msp430fr5868",2,8 }, | |
1180 | { "msp430fr5869",2,8 }, | |
1181 | { "msp430fr5870",2,8 }, | |
1182 | { "msp430fr5872",2,8 }, | |
1183 | { "msp430fr58721",2,8 }, | |
1184 | { "msp430fr5887",2,8 }, | |
1185 | { "msp430fr5888",2,8 }, | |
1186 | { "msp430fr5889",2,8 }, | |
1187 | { "msp430fr58891",2,8 }, | |
b27c40ec NC |
1188 | { "msp430fr5892",2,8 }, |
1189 | { "msp430fr5894",2,8 }, | |
ede77e69 NC |
1190 | { "msp430fr5922",2,8 }, |
1191 | { "msp430fr59221",2,8 }, | |
1192 | { "msp430fr5947",2,8 }, | |
1193 | { "msp430fr59471",2,8 }, | |
1194 | { "msp430fr5948",2,8 }, | |
1195 | { "msp430fr5949",2,8 }, | |
1196 | { "msp430fr5957",2,8 }, | |
1197 | { "msp430fr5958",2,8 }, | |
1198 | { "msp430fr5959",2,8 }, | |
b27c40ec NC |
1199 | { "msp430fr5962",2,8 }, |
1200 | { "msp430fr5964",2,8 }, | |
ede77e69 NC |
1201 | { "msp430fr5967",2,8 }, |
1202 | { "msp430fr5968",2,8 }, | |
1203 | { "msp430fr5969",2,8 }, | |
1204 | { "msp430fr59691",2,8 }, | |
1205 | { "msp430fr5970",2,8 }, | |
1206 | { "msp430fr5972",2,8 }, | |
1207 | { "msp430fr59721",2,8 }, | |
1208 | { "msp430fr5986",2,8 }, | |
1209 | { "msp430fr5987",2,8 }, | |
1210 | { "msp430fr5988",2,8 }, | |
1211 | { "msp430fr5989",2,8 }, | |
1212 | { "msp430fr59891",2,8 }, | |
b27c40ec NC |
1213 | { "msp430fr5992",2,8 }, |
1214 | { "msp430fr5994",2,8 }, | |
ede77e69 NC |
1215 | { "msp430fr5xx_6xxgeneric",2,8 }, |
1216 | { "msp430fr6820",2,8 }, | |
1217 | { "msp430fr6822",2,8 }, | |
1218 | { "msp430fr68221",2,8 }, | |
1219 | { "msp430fr6870",2,8 }, | |
1220 | { "msp430fr6872",2,8 }, | |
1221 | { "msp430fr68721",2,8 }, | |
1222 | { "msp430fr6877",2,8 }, | |
1223 | { "msp430fr6879",2,8 }, | |
1224 | { "msp430fr68791",2,8 }, | |
1225 | { "msp430fr6887",2,8 }, | |
1226 | { "msp430fr6888",2,8 }, | |
1227 | { "msp430fr6889",2,8 }, | |
1228 | { "msp430fr68891",2,8 }, | |
1229 | { "msp430fr6920",2,8 }, | |
1230 | { "msp430fr6922",2,8 }, | |
1231 | { "msp430fr69221",2,8 }, | |
1232 | { "msp430fr6927",2,8 }, | |
1233 | { "msp430fr69271",2,8 }, | |
1234 | { "msp430fr6928",2,8 }, | |
1235 | { "msp430fr6970",2,8 }, | |
1236 | { "msp430fr6972",2,8 }, | |
1237 | { "msp430fr69721",2,8 }, | |
1238 | { "msp430fr6977",2,8 }, | |
1239 | { "msp430fr6979",2,8 }, | |
1240 | { "msp430fr69791",2,8 }, | |
1241 | { "msp430fr6987",2,8 }, | |
1242 | { "msp430fr6988",2,8 }, | |
1243 | { "msp430fr6989",2,8 }, | |
1244 | { "msp430fr69891",2,8 }, | |
1245 | { "msp430fw423",0,0 }, | |
1246 | { "msp430fw425",0,0 }, | |
1247 | { "msp430fw427",0,0 }, | |
1248 | { "msp430fw428",0,0 }, | |
1249 | { "msp430fw429",0,0 }, | |
1250 | { "msp430g2001",0,0 }, | |
1251 | { "msp430g2101",0,0 }, | |
1252 | { "msp430g2102",0,0 }, | |
1253 | { "msp430g2111",0,0 }, | |
1254 | { "msp430g2112",0,0 }, | |
1255 | { "msp430g2113",0,0 }, | |
1256 | { "msp430g2121",0,0 }, | |
1257 | { "msp430g2131",0,0 }, | |
1258 | { "msp430g2132",0,0 }, | |
1259 | { "msp430g2152",0,0 }, | |
1260 | { "msp430g2153",0,0 }, | |
1261 | { "msp430g2201",0,0 }, | |
1262 | { "msp430g2202",0,0 }, | |
1263 | { "msp430g2203",0,0 }, | |
1264 | { "msp430g2210",0,0 }, | |
1265 | { "msp430g2211",0,0 }, | |
1266 | { "msp430g2212",0,0 }, | |
1267 | { "msp430g2213",0,0 }, | |
1268 | { "msp430g2221",0,0 }, | |
1269 | { "msp430g2230",0,0 }, | |
1270 | { "msp430g2231",0,0 }, | |
1271 | { "msp430g2232",0,0 }, | |
1272 | { "msp430g2233",0,0 }, | |
1273 | { "msp430g2252",0,0 }, | |
1274 | { "msp430g2253",0,0 }, | |
1275 | { "msp430g2302",0,0 }, | |
1276 | { "msp430g2303",0,0 }, | |
1277 | { "msp430g2312",0,0 }, | |
1278 | { "msp430g2313",0,0 }, | |
1279 | { "msp430g2332",0,0 }, | |
1280 | { "msp430g2333",0,0 }, | |
1281 | { "msp430g2352",0,0 }, | |
1282 | { "msp430g2353",0,0 }, | |
1283 | { "msp430g2402",0,0 }, | |
1284 | { "msp430g2403",0,0 }, | |
1285 | { "msp430g2412",0,0 }, | |
1286 | { "msp430g2413",0,0 }, | |
1287 | { "msp430g2432",0,0 }, | |
1288 | { "msp430g2433",0,0 }, | |
1289 | { "msp430g2444",0,0 }, | |
1290 | { "msp430g2452",0,0 }, | |
1291 | { "msp430g2453",0,0 }, | |
1292 | { "msp430g2513",0,0 }, | |
1293 | { "msp430g2533",0,0 }, | |
1294 | { "msp430g2544",0,0 }, | |
1295 | { "msp430g2553",0,0 }, | |
1296 | { "msp430g2744",0,0 }, | |
1297 | { "msp430g2755",0,0 }, | |
1298 | { "msp430g2855",0,0 }, | |
1299 | { "msp430g2955",0,0 }, | |
1300 | { "msp430i2020",0,2 }, | |
1301 | { "msp430i2021",0,2 }, | |
1302 | { "msp430i2030",0,2 }, | |
1303 | { "msp430i2031",0,2 }, | |
1304 | { "msp430i2040",0,2 }, | |
1305 | { "msp430i2041",0,2 }, | |
1306 | { "msp430i2xxgeneric",0,2 }, | |
1307 | { "msp430l092",0,0 }, | |
1308 | { "msp430p112",0,0 }, | |
1309 | { "msp430p313",0,0 }, | |
1310 | { "msp430p315",0,0 }, | |
1311 | { "msp430p315s",0,0 }, | |
1312 | { "msp430p325",0,0 }, | |
1313 | { "msp430p337",0,1 }, | |
1314 | { "msp430sl5438a",2,8 }, | |
1315 | { "msp430tch5e",0,0 }, | |
1316 | { "msp430xgeneric",2,8 }, | |
1317 | { "rf430f5144",2,8 }, | |
1318 | { "rf430f5155",2,8 }, | |
1319 | { "rf430f5175",2,8 }, | |
1320 | { "rf430frl152h",0,0 }, | |
1321 | { "rf430frl152h_rom",0,0 }, | |
1322 | { "rf430frl153h",0,0 }, | |
1323 | { "rf430frl153h_rom",0,0 }, | |
1324 | { "rf430frl154h",0,0 }, | |
1325 | { "rf430frl154h_rom",0,0 } | |
1326 | }; | |
65d7bab5 | 1327 | |
2469cfa2 | 1328 | int |
17b9d67d | 1329 | md_parse_option (int c, const char * arg) |
2469cfa2 | 1330 | { |
2469cfa2 NC |
1331 | switch (c) |
1332 | { | |
2213f746 NC |
1333 | case OPTION_SILICON_ERRATA: |
1334 | case OPTION_SILICON_ERRATA_WARN: | |
1335 | { | |
1336 | signed int i; | |
1337 | const struct | |
1338 | { | |
e0471c16 | 1339 | const char * name; |
2213f746 NC |
1340 | unsigned int length; |
1341 | unsigned int bitfield; | |
1342 | } erratas[] = | |
1343 | { | |
1344 | { STRING_COMMA_LEN ("cpu4"), SILICON_ERRATA_CPU4 }, | |
1345 | { STRING_COMMA_LEN ("cpu8"), SILICON_ERRATA_CPU8 }, | |
1346 | { STRING_COMMA_LEN ("cpu11"), SILICON_ERRATA_CPU11 }, | |
1347 | { STRING_COMMA_LEN ("cpu12"), SILICON_ERRATA_CPU12 }, | |
1348 | { STRING_COMMA_LEN ("cpu13"), SILICON_ERRATA_CPU13 }, | |
1349 | { STRING_COMMA_LEN ("cpu19"), SILICON_ERRATA_CPU19 }, | |
2213f746 NC |
1350 | }; |
1351 | ||
1352 | do | |
1353 | { | |
1354 | for (i = ARRAY_SIZE (erratas); i--;) | |
1355 | if (strncasecmp (arg, erratas[i].name, erratas[i].length) == 0) | |
1356 | { | |
1357 | if (c == OPTION_SILICON_ERRATA) | |
1358 | silicon_errata_fix |= erratas[i].bitfield; | |
1359 | else | |
1360 | silicon_errata_warn |= erratas[i].bitfield; | |
1361 | arg += erratas[i].length; | |
1362 | break; | |
1363 | } | |
1364 | if (i < 0) | |
1365 | { | |
1366 | as_warn (_("Unrecognised CPU errata name starting here: %s"), arg); | |
1367 | break; | |
1368 | } | |
1369 | if (*arg == 0) | |
1370 | break; | |
1371 | if (*arg != ',') | |
1372 | as_warn (_("Expecting comma after CPU errata name, not: %s"), arg); | |
1373 | else | |
1374 | arg ++; | |
1375 | } | |
1376 | while (*arg != 0); | |
1377 | } | |
1378 | return 1; | |
1379 | ||
2469cfa2 | 1380 | case OPTION_MMCU: |
638d3803 NC |
1381 | if (arg == NULL) |
1382 | as_fatal (_("MCU option requires a name\n")); | |
1383 | ||
65d7bab5 NC |
1384 | if (strcasecmp ("msp430", arg) == 0) |
1385 | selected_isa = MSP_ISA_430; | |
1386 | else if (strcasecmp ("msp430xv2", arg) == 0) | |
1387 | selected_isa = MSP_ISA_430Xv2; | |
1388 | else if (strcasecmp ("msp430x", arg) == 0) | |
1389 | selected_isa = MSP_ISA_430X; | |
1390 | else | |
2469cfa2 | 1391 | { |
65d7bab5 NC |
1392 | int i; |
1393 | ||
ede77e69 NC |
1394 | for (i = ARRAY_SIZE (msp430_mcu_data); i--;) |
1395 | if (strcasecmp (msp430_mcu_data[i].name, arg) == 0) | |
65d7bab5 | 1396 | { |
ede77e69 NC |
1397 | switch (msp430_mcu_data[i].revision) |
1398 | { | |
1399 | case 0: selected_isa = MSP_ISA_430; break; | |
1400 | case 1: selected_isa = MSP_ISA_430X; break; | |
1401 | case 2: selected_isa = MSP_ISA_430Xv2; break; | |
1402 | } | |
65d7bab5 NC |
1403 | break; |
1404 | } | |
2469cfa2 | 1405 | } |
8e75a78f | 1406 | /* It is not an error if we do not match the MCU name. */ |
2469cfa2 | 1407 | return 1; |
65d7bab5 | 1408 | |
638d3803 | 1409 | case OPTION_MCPU: |
8e75a78f NC |
1410 | if (strcmp (arg, "430") == 0 |
1411 | || strcasecmp (arg, "msp430") == 0) | |
65d7bab5 | 1412 | selected_isa = MSP_ISA_430; |
8e75a78f NC |
1413 | else if (strcasecmp (arg, "430x") == 0 |
1414 | || strcasecmp (arg, "msp430x") == 0) | |
65d7bab5 | 1415 | selected_isa = MSP_ISA_430X; |
8e75a78f NC |
1416 | else if (strcasecmp (arg, "430xv2") == 0 |
1417 | || strcasecmp (arg, "msp430xv2") == 0) | |
65d7bab5 | 1418 | selected_isa = MSP_ISA_430Xv2; |
638d3803 NC |
1419 | else |
1420 | as_fatal (_("unrecognised argument to -mcpu option '%s'"), arg); | |
638d3803 | 1421 | return 1; |
38d77545 | 1422 | |
77592908 | 1423 | case OPTION_RELAX: |
13761a11 | 1424 | msp430_enable_relax = 1; |
77592908 | 1425 | return 1; |
13761a11 | 1426 | |
77592908 DD |
1427 | case OPTION_POLYMORPHS: |
1428 | msp430_enable_polys = 1; | |
1429 | return 1; | |
13761a11 NC |
1430 | |
1431 | case OPTION_LARGE: | |
1432 | large_model = TRUE; | |
1433 | return 1; | |
1434 | ||
1435 | case OPTION_NO_INTR_NOPS: | |
1436 | gen_interrupt_nops = FALSE; | |
1437 | return 1; | |
a75555d1 NC |
1438 | case OPTION_INTR_NOPS: |
1439 | gen_interrupt_nops = TRUE; | |
1440 | return 1; | |
ab905915 | 1441 | |
65d7bab5 NC |
1442 | case OPTION_WARN_INTR_NOPS: |
1443 | warn_interrupt_nops = TRUE; | |
1444 | return 1; | |
1445 | case OPTION_NO_WARN_INTR_NOPS: | |
1446 | warn_interrupt_nops = FALSE; | |
1447 | return 1; | |
1448 | ||
ab905915 NC |
1449 | case OPTION_MOVE_DATA: |
1450 | move_data = TRUE; | |
1451 | return 1; | |
2469cfa2 NC |
1452 | } |
1453 | ||
1454 | return 0; | |
1455 | } | |
1456 | ||
34b822e3 DD |
1457 | /* The intention here is to have the mere presence of these sections |
1458 | cause the object to have a reference to a well-known symbol. This | |
1459 | reference pulls in the bits of the runtime (crt0) that initialize | |
1460 | these sections. Thus, for example, the startup code to call | |
1461 | memset() to initialize .bss will only be linked in when there is a | |
1462 | non-empty .bss section. Otherwise, the call would exist but have a | |
1463 | zero length parameter, which is a waste of memory and cycles. | |
1464 | ||
1465 | The code which initializes these sections should have a global | |
1466 | label for these symbols, and should be marked with KEEP() in the | |
837a17b3 NC |
1467 | linker script. */ |
1468 | ||
ab905915 | 1469 | static void |
837a17b3 | 1470 | msp430_make_init_symbols (const char * name) |
ab905915 | 1471 | { |
ab905915 NC |
1472 | if (strncmp (name, ".bss", 4) == 0 |
1473 | || strncmp (name, ".gnu.linkonce.b.", 16) == 0) | |
1474 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1475 | ||
34b822e3 DD |
1476 | if (strncmp (name, ".data", 5) == 0 |
1477 | || strncmp (name, ".gnu.linkonce.d.", 16) == 0) | |
ab905915 NC |
1478 | (void) symbol_find_or_make ("__crt0_movedata"); |
1479 | ||
837a17b3 NC |
1480 | /* Note - data assigned to the .either.data section may end up being |
1481 | placed in the .upper.data section if the .lower.data section is | |
1482 | full. Hence the need to define the crt0 symbol. */ | |
1483 | if (strncmp (name, ".either.data", 12) == 0 | |
1484 | || strncmp (name, ".upper.data", 11) == 0) | |
1485 | (void) symbol_find_or_make ("__crt0_move_highdata"); | |
1486 | ||
1487 | /* See note about .either.data above. */ | |
1488 | if (strncmp (name, ".upper.bss", 10) == 0 | |
1489 | || strncmp (name, ".either.bss", 11) == 0) | |
1490 | (void) symbol_find_or_make ("__crt0_init_highbss"); | |
1491 | } | |
1492 | ||
1493 | static void | |
1494 | msp430_section (int arg) | |
1495 | { | |
1496 | char * saved_ilp = input_line_pointer; | |
b9bb4a93 | 1497 | const char * name = obj_elf_section_name (); |
837a17b3 NC |
1498 | |
1499 | msp430_make_init_symbols (name); | |
3739860c | 1500 | |
ab905915 NC |
1501 | input_line_pointer = saved_ilp; |
1502 | obj_elf_section (arg); | |
1503 | } | |
1504 | ||
34b822e3 DD |
1505 | void |
1506 | msp430_frob_section (asection *sec) | |
1507 | { | |
1508 | const char *name = sec->name; | |
1509 | ||
1510 | if (sec->size == 0) | |
1511 | return; | |
1512 | ||
837a17b3 | 1513 | msp430_make_init_symbols (name); |
34b822e3 DD |
1514 | } |
1515 | ||
1516 | static void | |
1517 | msp430_lcomm (int ignore ATTRIBUTE_UNUSED) | |
1518 | { | |
1519 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
1520 | ||
1521 | if (symbolP) | |
1522 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
1523 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1524 | } | |
1525 | ||
1526 | static void | |
1527 | msp430_comm (int needs_align) | |
1528 | { | |
1529 | s_comm_internal (needs_align, elf_common_parse); | |
1530 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1531 | } | |
1532 | ||
96b96102 DD |
1533 | static void |
1534 | msp430_refsym (int arg ATTRIBUTE_UNUSED) | |
1535 | { | |
1536 | char sym_name[1024]; | |
1537 | input_line_pointer = extract_word (input_line_pointer, sym_name, 1024); | |
1538 | ||
1539 | (void) symbol_find_or_make (sym_name); | |
1540 | } | |
1541 | ||
b18c562e | 1542 | const pseudo_typeS md_pseudo_table[] = |
2469cfa2 | 1543 | { |
638d3803 NC |
1544 | {"arch", msp430_set_arch, OPTION_MMCU}, |
1545 | {"cpu", msp430_set_arch, OPTION_MCPU}, | |
b18c562e | 1546 | {"profiler", msp430_profiler, 0}, |
ab905915 NC |
1547 | {"section", msp430_section, 0}, |
1548 | {"section.s", msp430_section, 0}, | |
1549 | {"sect", msp430_section, 0}, | |
1550 | {"sect.s", msp430_section, 0}, | |
1551 | {"pushsection", msp430_section, 1}, | |
96b96102 | 1552 | {"refsym", msp430_refsym, 0}, |
34b822e3 DD |
1553 | {"comm", msp430_comm, 0}, |
1554 | {"lcomm", msp430_lcomm, 0}, | |
b18c562e NC |
1555 | {NULL, NULL, 0} |
1556 | }; | |
2469cfa2 | 1557 | |
69227609 | 1558 | const char *md_shortopts = "mm:,mP,mQ,ml,mN,mn,my,mY"; |
2469cfa2 | 1559 | |
b18c562e | 1560 | struct option md_longopts[] = |
2469cfa2 | 1561 | { |
2213f746 NC |
1562 | {"msilicon-errata", required_argument, NULL, OPTION_SILICON_ERRATA}, |
1563 | {"msilicon-errata-warn", required_argument, NULL, OPTION_SILICON_ERRATA_WARN}, | |
b18c562e | 1564 | {"mmcu", required_argument, NULL, OPTION_MMCU}, |
638d3803 | 1565 | {"mcpu", required_argument, NULL, OPTION_MCPU}, |
77592908 DD |
1566 | {"mP", no_argument, NULL, OPTION_POLYMORPHS}, |
1567 | {"mQ", no_argument, NULL, OPTION_RELAX}, | |
13761a11 NC |
1568 | {"ml", no_argument, NULL, OPTION_LARGE}, |
1569 | {"mN", no_argument, NULL, OPTION_NO_INTR_NOPS}, | |
a75555d1 | 1570 | {"mn", no_argument, NULL, OPTION_INTR_NOPS}, |
69227609 NC |
1571 | {"mY", no_argument, NULL, OPTION_NO_WARN_INTR_NOPS}, |
1572 | {"my", no_argument, NULL, OPTION_WARN_INTR_NOPS}, | |
ab905915 | 1573 | {"md", no_argument, NULL, OPTION_MOVE_DATA}, |
b18c562e NC |
1574 | {NULL, no_argument, NULL, 0} |
1575 | }; | |
2469cfa2 | 1576 | |
b18c562e | 1577 | size_t md_longopts_size = sizeof (md_longopts); |
2469cfa2 | 1578 | |
b18c562e NC |
1579 | void |
1580 | md_show_usage (FILE * stream) | |
2469cfa2 | 1581 | { |
b18c562e NC |
1582 | fprintf (stream, |
1583 | _("MSP430 options:\n" | |
638d3803 NC |
1584 | " -mmcu=<msp430-name> - select microcontroller type\n" |
1585 | " -mcpu={430|430x|430xv2} - select microcontroller architecture\n")); | |
2213f746 NC |
1586 | fprintf (stream, |
1587 | _(" -msilicon-errata=<name>[,<name>...] - enable fixups for silicon errata\n" | |
1588 | " -msilicon-errata-warn=<name>[,<name>...] - warn when a fixup might be needed\n" | |
ff1fe6fa | 1589 | " supported errata names: cpu4, cpu8, cpu11, cpu12, cpu13, cpu19\n")); |
77592908 DD |
1590 | fprintf (stream, |
1591 | _(" -mQ - enable relaxation at assembly time. DANGEROUS!\n" | |
1592 | " -mP - enable polymorph instructions\n")); | |
13761a11 NC |
1593 | fprintf (stream, |
1594 | _(" -ml - enable large code model\n")); | |
1595 | fprintf (stream, | |
65d7bab5 | 1596 | _(" -mN - do not insert NOPs after changing interrupts (default)\n")); |
a75555d1 | 1597 | fprintf (stream, |
65d7bab5 NC |
1598 | _(" -mn - insert a NOP after changing interrupts\n")); |
1599 | fprintf (stream, | |
69227609 | 1600 | _(" -mY - do not warn about missing NOPs after changing interrupts\n")); |
65d7bab5 | 1601 | fprintf (stream, |
69227609 | 1602 | _(" -my - warn about missing NOPs after changing interrupts (default)\n")); |
ab905915 NC |
1603 | fprintf (stream, |
1604 | _(" -md - Force copying of data from ROM to RAM at startup\n")); | |
b18c562e | 1605 | } |
2469cfa2 | 1606 | |
b18c562e NC |
1607 | symbolS * |
1608 | md_undefined_symbol (char * name ATTRIBUTE_UNUSED) | |
1609 | { | |
13761a11 | 1610 | return NULL; |
2469cfa2 NC |
1611 | } |
1612 | ||
1613 | static char * | |
b18c562e | 1614 | extract_cmd (char * from, char * to, int limit) |
2469cfa2 NC |
1615 | { |
1616 | int size = 0; | |
1617 | ||
1618 | while (*from && ! ISSPACE (*from) && *from != '.' && limit > size) | |
1619 | { | |
1620 | *(to + size) = *from; | |
1621 | from++; | |
1622 | size++; | |
1623 | } | |
1624 | ||
1625 | *(to + size) = 0; | |
1626 | ||
1627 | return from; | |
1628 | } | |
1629 | ||
6d4af3c2 | 1630 | const char * |
b18c562e | 1631 | md_atof (int type, char * litP, int * sizeP) |
2469cfa2 | 1632 | { |
499ac353 | 1633 | return ieee_md_atof (type, litP, sizeP, FALSE); |
2469cfa2 NC |
1634 | } |
1635 | ||
1636 | void | |
b18c562e | 1637 | md_begin (void) |
2469cfa2 | 1638 | { |
b18c562e | 1639 | struct msp430_opcode_s * opcode; |
2469cfa2 NC |
1640 | msp430_hash = hash_new (); |
1641 | ||
1642 | for (opcode = msp430_opcodes; opcode->name; opcode++) | |
1643 | hash_insert (msp430_hash, opcode->name, (char *) opcode); | |
1644 | ||
638d3803 NC |
1645 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, |
1646 | target_is_430x () ? bfd_mach_msp430x : bfd_mach_msp11); | |
9117cd3e TS |
1647 | |
1648 | /* Set linkrelax here to avoid fixups in most sections. */ | |
1649 | linkrelax = 1; | |
2469cfa2 NC |
1650 | } |
1651 | ||
13761a11 NC |
1652 | /* Returns the register number equivalent to the string T. |
1653 | Returns -1 if there is no such register. | |
1654 | Skips a leading 'r' or 'R' character if there is one. | |
1655 | Handles the register aliases PC and SP. */ | |
1656 | ||
1657 | static signed int | |
b18c562e | 1658 | check_reg (char * t) |
2469cfa2 | 1659 | { |
13761a11 | 1660 | signed int val; |
2469cfa2 | 1661 | |
13761a11 NC |
1662 | if (t == NULL) |
1663 | return -1; | |
2469cfa2 | 1664 | |
13761a11 NC |
1665 | if (*t == 'r' || *t == 'R') |
1666 | ++t; | |
1667 | ||
1668 | if (strncasecmp (t, "pc", 2) == 0) | |
1669 | return 0; | |
2469cfa2 | 1670 | |
13761a11 | 1671 | if (strncasecmp (t, "sp", 2) == 0) |
b18c562e | 1672 | return 1; |
2469cfa2 | 1673 | |
13761a11 NC |
1674 | if (strncasecmp (t, "sr", 2) == 0) |
1675 | return 2; | |
1676 | ||
1677 | if (*t == '0') | |
1678 | return 0; | |
2469cfa2 | 1679 | |
13761a11 NC |
1680 | val = atoi (t); |
1681 | ||
1682 | if (val < 1 || val > 15) | |
1683 | return -1; | |
1684 | ||
1685 | return val; | |
1686 | } | |
2469cfa2 | 1687 | |
b18c562e NC |
1688 | static int |
1689 | msp430_srcoperand (struct msp430_operand_s * op, | |
13761a11 NC |
1690 | char * l, |
1691 | int bin, | |
00b32ff2 | 1692 | bfd_boolean * imm_op, |
13761a11 NC |
1693 | bfd_boolean allow_20bit_values, |
1694 | bfd_boolean constants_allowed) | |
2469cfa2 | 1695 | { |
b18c562e | 1696 | char *__tl = l; |
2469cfa2 | 1697 | |
b18c562e NC |
1698 | /* Check if an immediate #VALUE. The hash sign should be only at the beginning! */ |
1699 | if (*l == '#') | |
2469cfa2 | 1700 | { |
b18c562e NC |
1701 | char *h = l; |
1702 | int vshift = -1; | |
1703 | int rval = 0; | |
2469cfa2 | 1704 | |
b18c562e NC |
1705 | /* Check if there is: |
1706 | llo(x) - least significant 16 bits, x &= 0xffff | |
1707 | lhi(x) - x = (x >> 16) & 0xffff, | |
1708 | hlo(x) - x = (x >> 32) & 0xffff, | |
1709 | hhi(x) - x = (x >> 48) & 0xffff | |
1710 | The value _MUST_ be constant expression: #hlo(1231231231). */ | |
2469cfa2 | 1711 | |
00b32ff2 | 1712 | *imm_op = TRUE; |
2469cfa2 | 1713 | |
b18c562e NC |
1714 | if (strncasecmp (h, "#llo(", 5) == 0) |
1715 | { | |
1716 | vshift = 0; | |
1717 | rval = 3; | |
1718 | } | |
1719 | else if (strncasecmp (h, "#lhi(", 5) == 0) | |
1720 | { | |
1721 | vshift = 1; | |
1722 | rval = 3; | |
1723 | } | |
1724 | else if (strncasecmp (h, "#hlo(", 5) == 0) | |
1725 | { | |
1726 | vshift = 2; | |
1727 | rval = 3; | |
1728 | } | |
1729 | else if (strncasecmp (h, "#hhi(", 5) == 0) | |
1730 | { | |
1731 | vshift = 3; | |
1732 | rval = 3; | |
1733 | } | |
1734 | else if (strncasecmp (h, "#lo(", 4) == 0) | |
1735 | { | |
1736 | vshift = 0; | |
1737 | rval = 2; | |
1738 | } | |
1739 | else if (strncasecmp (h, "#hi(", 4) == 0) | |
1740 | { | |
1741 | vshift = 1; | |
1742 | rval = 2; | |
1743 | } | |
2469cfa2 | 1744 | |
b18c562e NC |
1745 | op->reg = 0; /* Reg PC. */ |
1746 | op->am = 3; | |
65d7bab5 | 1747 | op->ol = 1; /* Immediate will follow an instruction. */ |
b18c562e NC |
1748 | __tl = h + 1 + rval; |
1749 | op->mode = OP_EXP; | |
00b32ff2 | 1750 | op->vshift = vshift; |
2469cfa2 | 1751 | |
b18c562e NC |
1752 | parse_exp (__tl, &(op->exp)); |
1753 | if (op->exp.X_op == O_constant) | |
2469cfa2 | 1754 | { |
b18c562e | 1755 | int x = op->exp.X_add_number; |
2469cfa2 | 1756 | |
b18c562e | 1757 | if (vshift == 0) |
2469cfa2 | 1758 | { |
b18c562e NC |
1759 | x = x & 0xffff; |
1760 | op->exp.X_add_number = x; | |
1761 | } | |
1762 | else if (vshift == 1) | |
1763 | { | |
1764 | x = (x >> 16) & 0xffff; | |
1765 | op->exp.X_add_number = x; | |
00b32ff2 | 1766 | op->vshift = 0; |
b18c562e NC |
1767 | } |
1768 | else if (vshift > 1) | |
1769 | { | |
1770 | if (x < 0) | |
1771 | op->exp.X_add_number = -1; | |
2469cfa2 | 1772 | else |
b18c562e NC |
1773 | op->exp.X_add_number = 0; /* Nothing left. */ |
1774 | x = op->exp.X_add_number; | |
00b32ff2 | 1775 | op->vshift = 0; |
2469cfa2 | 1776 | } |
2469cfa2 | 1777 | |
13761a11 NC |
1778 | if (allow_20bit_values) |
1779 | { | |
99b4a5a0 | 1780 | if (op->exp.X_add_number > 0xfffff || op->exp.X_add_number < -524288) |
13761a11 NC |
1781 | { |
1782 | as_bad (_("value 0x%x out of extended range."), x); | |
1783 | return 1; | |
1784 | } | |
1785 | } | |
1786 | else if (op->exp.X_add_number > 65535 || op->exp.X_add_number < -32768) | |
b18c562e NC |
1787 | { |
1788 | as_bad (_("value %d out of range. Use #lo() or #hi()"), x); | |
1789 | return 1; | |
1790 | } | |
2469cfa2 | 1791 | |
b18c562e NC |
1792 | /* Now check constants. */ |
1793 | /* Substitute register mode with a constant generator if applicable. */ | |
2469cfa2 | 1794 | |
13761a11 NC |
1795 | if (!allow_20bit_values) |
1796 | x = (short) x; /* Extend sign. */ | |
2469cfa2 | 1797 | |
13761a11 NC |
1798 | if (! constants_allowed) |
1799 | ; | |
1800 | else if (x == 0) | |
2469cfa2 | 1801 | { |
b18c562e NC |
1802 | op->reg = 3; |
1803 | op->am = 0; | |
1804 | op->ol = 0; | |
1805 | op->mode = OP_REG; | |
1806 | } | |
1807 | else if (x == 1) | |
1808 | { | |
1809 | op->reg = 3; | |
1810 | op->am = 1; | |
1811 | op->ol = 0; | |
1812 | op->mode = OP_REG; | |
1813 | } | |
1814 | else if (x == 2) | |
1815 | { | |
1816 | op->reg = 3; | |
1817 | op->am = 2; | |
1818 | op->ol = 0; | |
1819 | op->mode = OP_REG; | |
1820 | } | |
1821 | else if (x == -1) | |
1822 | { | |
1823 | op->reg = 3; | |
1824 | op->am = 3; | |
1825 | op->ol = 0; | |
1826 | op->mode = OP_REG; | |
1827 | } | |
1828 | else if (x == 4) | |
1829 | { | |
2213f746 | 1830 | if (bin == 0x1200 && ! target_is_430x ()) |
b18c562e | 1831 | { |
2213f746 NC |
1832 | /* CPU4: The shorter form of PUSH #4 is not supported on MSP430. */ |
1833 | if (silicon_errata_warn & SILICON_ERRATA_CPU4) | |
1834 | as_warn (_("cpu4: not converting PUSH #4 to shorter form")); | |
1835 | /* No need to check silicon_errata_fixes - this fix is always implemented. */ | |
b18c562e NC |
1836 | } |
1837 | else | |
b18c562e NC |
1838 | { |
1839 | op->reg = 2; | |
1840 | op->am = 2; | |
1841 | op->ol = 0; | |
1842 | op->mode = OP_REG; | |
1843 | } | |
1844 | } | |
1845 | else if (x == 8) | |
1846 | { | |
2213f746 | 1847 | if (bin == 0x1200 && ! target_is_430x ()) |
b18c562e | 1848 | { |
2213f746 NC |
1849 | /* CPU4: The shorter form of PUSH #8 is not supported on MSP430. */ |
1850 | if (silicon_errata_warn & SILICON_ERRATA_CPU4) | |
1851 | as_warn (_("cpu4: not converting PUSH #8 to shorter form")); | |
b18c562e NC |
1852 | } |
1853 | else | |
b18c562e NC |
1854 | { |
1855 | op->reg = 2; | |
1856 | op->am = 3; | |
1857 | op->ol = 0; | |
1858 | op->mode = OP_REG; | |
1859 | } | |
2469cfa2 | 1860 | } |
2469cfa2 | 1861 | } |
b18c562e NC |
1862 | else if (op->exp.X_op == O_symbol) |
1863 | { | |
00b32ff2 NC |
1864 | if (vshift > 1) |
1865 | as_bad (_("error: unsupported #foo() directive used on symbol")); | |
b18c562e NC |
1866 | op->mode = OP_EXP; |
1867 | } | |
1868 | else if (op->exp.X_op == O_big) | |
1869 | { | |
1870 | short x; | |
65d7bab5 | 1871 | |
b18c562e NC |
1872 | if (vshift != -1) |
1873 | { | |
1874 | op->exp.X_op = O_constant; | |
1875 | op->exp.X_add_number = 0xffff & generic_bignum[vshift]; | |
1876 | x = op->exp.X_add_number; | |
00b32ff2 | 1877 | op->vshift = 0; |
b18c562e NC |
1878 | } |
1879 | else | |
1880 | { | |
1881 | as_bad (_ | |
1882 | ("unknown expression in operand %s. use #llo() #lhi() #hlo() #hhi() "), | |
1883 | l); | |
1884 | return 1; | |
1885 | } | |
2469cfa2 | 1886 | |
b18c562e NC |
1887 | if (x == 0) |
1888 | { | |
1889 | op->reg = 3; | |
1890 | op->am = 0; | |
1891 | op->ol = 0; | |
1892 | op->mode = OP_REG; | |
1893 | } | |
1894 | else if (x == 1) | |
1895 | { | |
1896 | op->reg = 3; | |
1897 | op->am = 1; | |
1898 | op->ol = 0; | |
1899 | op->mode = OP_REG; | |
1900 | } | |
1901 | else if (x == 2) | |
1902 | { | |
1903 | op->reg = 3; | |
1904 | op->am = 2; | |
1905 | op->ol = 0; | |
1906 | op->mode = OP_REG; | |
1907 | } | |
1908 | else if (x == -1) | |
1909 | { | |
1910 | op->reg = 3; | |
1911 | op->am = 3; | |
1912 | op->ol = 0; | |
1913 | op->mode = OP_REG; | |
1914 | } | |
1915 | else if (x == 4) | |
1916 | { | |
1917 | op->reg = 2; | |
1918 | op->am = 2; | |
1919 | op->ol = 0; | |
1920 | op->mode = OP_REG; | |
1921 | } | |
1922 | else if (x == 8) | |
1923 | { | |
1924 | op->reg = 2; | |
1925 | op->am = 3; | |
1926 | op->ol = 0; | |
1927 | op->mode = OP_REG; | |
1928 | } | |
1929 | } | |
79cf5950 | 1930 | /* Redundant (yet) check. */ |
b18c562e NC |
1931 | else if (op->exp.X_op == O_register) |
1932 | as_bad | |
1933 | (_("Registers cannot be used within immediate expression [%s]"), l); | |
1934 | else | |
1935 | as_bad (_("unknown operand %s"), l); | |
2469cfa2 | 1936 | |
b18c562e NC |
1937 | return 0; |
1938 | } | |
2469cfa2 | 1939 | |
b18c562e NC |
1940 | /* Check if absolute &VALUE (assume that we can construct something like ((a&b)<<7 + 25). */ |
1941 | if (*l == '&') | |
1942 | { | |
1943 | char *h = l; | |
2469cfa2 | 1944 | |
b18c562e NC |
1945 | op->reg = 2; /* reg 2 in absolute addr mode. */ |
1946 | op->am = 1; /* mode As == 01 bin. */ | |
1947 | op->ol = 1; /* Immediate value followed by instruction. */ | |
1948 | __tl = h + 1; | |
1949 | parse_exp (__tl, &(op->exp)); | |
1950 | op->mode = OP_EXP; | |
00b32ff2 | 1951 | op->vshift = 0; |
b18c562e | 1952 | if (op->exp.X_op == O_constant) |
2469cfa2 | 1953 | { |
b18c562e | 1954 | int x = op->exp.X_add_number; |
2469cfa2 | 1955 | |
13761a11 NC |
1956 | if (allow_20bit_values) |
1957 | { | |
1958 | if (x > 0xfffff || x < -(0x7ffff)) | |
1959 | { | |
1960 | as_bad (_("value 0x%x out of extended range."), x); | |
1961 | return 1; | |
1962 | } | |
1963 | } | |
1964 | else if (x > 65535 || x < -32768) | |
b18c562e | 1965 | { |
13761a11 | 1966 | as_bad (_("value out of range: 0x%x"), x); |
b18c562e NC |
1967 | return 1; |
1968 | } | |
2469cfa2 | 1969 | } |
b18c562e NC |
1970 | else if (op->exp.X_op == O_symbol) |
1971 | ; | |
1972 | else | |
2469cfa2 | 1973 | { |
79cf5950 | 1974 | /* Redundant (yet) check. */ |
b18c562e NC |
1975 | if (op->exp.X_op == O_register) |
1976 | as_bad | |
1977 | (_("Registers cannot be used within absolute expression [%s]"), l); | |
2469cfa2 | 1978 | else |
b18c562e NC |
1979 | as_bad (_("unknown expression in operand %s"), l); |
1980 | return 1; | |
2469cfa2 | 1981 | } |
b18c562e NC |
1982 | return 0; |
1983 | } | |
2469cfa2 | 1984 | |
b18c562e NC |
1985 | /* Check if indirect register mode @Rn / postincrement @Rn+. */ |
1986 | if (*l == '@') | |
1987 | { | |
1988 | char *t = l; | |
1989 | char *m = strchr (l, '+'); | |
1990 | ||
1991 | if (t != l) | |
2469cfa2 | 1992 | { |
b18c562e NC |
1993 | as_bad (_("unknown addressing mode %s"), l); |
1994 | return 1; | |
2469cfa2 NC |
1995 | } |
1996 | ||
b18c562e | 1997 | t++; |
2469cfa2 | 1998 | |
13761a11 | 1999 | if ((op->reg = check_reg (t)) == -1) |
2469cfa2 | 2000 | { |
13761a11 | 2001 | as_bad (_("Bad register name %s"), t); |
b18c562e | 2002 | return 1; |
2469cfa2 | 2003 | } |
2469cfa2 | 2004 | |
b18c562e NC |
2005 | op->mode = OP_REG; |
2006 | op->am = m ? 3 : 2; | |
2007 | op->ol = 0; | |
2469cfa2 | 2008 | |
d1706f38 NC |
2009 | /* PC cannot be used in indirect addressing. */ |
2010 | if (target_is_430xv2 () && op->reg == 0) | |
2011 | { | |
2012 | as_bad (_("cannot use indirect addressing with the PC")); | |
2013 | return 1; | |
2014 | } | |
65d7bab5 | 2015 | |
b18c562e NC |
2016 | return 0; |
2017 | } | |
2469cfa2 | 2018 | |
b18c562e NC |
2019 | /* Check if register indexed X(Rn). */ |
2020 | do | |
2021 | { | |
2022 | char *h = strrchr (l, '('); | |
2023 | char *m = strrchr (l, ')'); | |
2024 | char *t; | |
2469cfa2 | 2025 | |
00b32ff2 | 2026 | *imm_op = TRUE; |
2469cfa2 | 2027 | |
b18c562e NC |
2028 | if (!h) |
2029 | break; | |
2030 | if (!m) | |
2031 | { | |
2032 | as_bad (_("')' required")); | |
2033 | return 1; | |
2034 | } | |
2469cfa2 | 2035 | |
b18c562e NC |
2036 | t = h; |
2037 | op->am = 1; | |
2038 | op->ol = 1; | |
2469cfa2 | 2039 | |
13761a11 NC |
2040 | /* Extract a register. */ |
2041 | if ((op->reg = check_reg (t + 1)) == -1) | |
b18c562e NC |
2042 | { |
2043 | as_bad (_ | |
2044 | ("unknown operator %s. Did you mean X(Rn) or #[hl][hl][oi](CONST) ?"), | |
2045 | l); | |
2046 | return 1; | |
2047 | } | |
2469cfa2 | 2048 | |
13761a11 | 2049 | if (op->reg == 2) |
b18c562e | 2050 | { |
13761a11 | 2051 | as_bad (_("r2 should not be used in indexed addressing mode")); |
b18c562e NC |
2052 | return 1; |
2053 | } | |
b18c562e NC |
2054 | |
2055 | /* Extract constant. */ | |
2056 | __tl = l; | |
2057 | *h = 0; | |
2058 | op->mode = OP_EXP; | |
00b32ff2 | 2059 | op->vshift = 0; |
b18c562e NC |
2060 | parse_exp (__tl, &(op->exp)); |
2061 | if (op->exp.X_op == O_constant) | |
2062 | { | |
2063 | int x = op->exp.X_add_number; | |
2064 | ||
13761a11 NC |
2065 | if (allow_20bit_values) |
2066 | { | |
2067 | if (x > 0xfffff || x < - (0x7ffff)) | |
2068 | { | |
2069 | as_bad (_("value 0x%x out of extended range."), x); | |
2070 | return 1; | |
2071 | } | |
2072 | } | |
2073 | else if (x > 65535 || x < -32768) | |
2469cfa2 | 2074 | { |
13761a11 | 2075 | as_bad (_("value out of range: 0x%x"), x); |
b18c562e | 2076 | return 1; |
2469cfa2 | 2077 | } |
b18c562e NC |
2078 | |
2079 | if (x == 0) | |
2469cfa2 | 2080 | { |
b18c562e NC |
2081 | op->mode = OP_REG; |
2082 | op->am = 2; | |
2083 | op->ol = 0; | |
2084 | return 0; | |
2469cfa2 | 2085 | } |
2213f746 NC |
2086 | |
2087 | if (op->reg == 1 && (x & 1)) | |
2088 | { | |
2089 | if (silicon_errata_fix & SILICON_ERRATA_CPU8) | |
2090 | as_bad (_("CPU8: Stack pointer accessed with an odd offset")); | |
2091 | else if (silicon_errata_warn & SILICON_ERRATA_CPU8) | |
2092 | as_warn (_("CPU8: Stack pointer accessed with an odd offset")); | |
2093 | } | |
2469cfa2 | 2094 | } |
b18c562e NC |
2095 | else if (op->exp.X_op == O_symbol) |
2096 | ; | |
2469cfa2 NC |
2097 | else |
2098 | { | |
79cf5950 | 2099 | /* Redundant (yet) check. */ |
b18c562e NC |
2100 | if (op->exp.X_op == O_register) |
2101 | as_bad | |
2102 | (_("Registers cannot be used as a prefix of indexed expression [%s]"), l); | |
2103 | else | |
2104 | as_bad (_("unknown expression in operand %s"), l); | |
2105 | return 1; | |
2469cfa2 | 2106 | } |
2469cfa2 | 2107 | |
b18c562e | 2108 | return 0; |
2469cfa2 | 2109 | } |
b18c562e | 2110 | while (0); |
2469cfa2 | 2111 | |
13761a11 NC |
2112 | /* Possibly register mode 'mov r1,r2'. */ |
2113 | if ((op->reg = check_reg (l)) != -1) | |
b18c562e | 2114 | { |
13761a11 NC |
2115 | op->mode = OP_REG; |
2116 | op->am = 0; | |
2117 | op->ol = 0; | |
2118 | return 0; | |
b18c562e | 2119 | } |
b18c562e NC |
2120 | |
2121 | /* Symbolic mode 'mov a, b' == 'mov x(pc), y(pc)'. */ | |
2122 | do | |
2123 | { | |
b18c562e NC |
2124 | op->mode = OP_EXP; |
2125 | op->reg = 0; /* PC relative... be careful. */ | |
13761a11 NC |
2126 | /* An expression starting with a minus sign is a constant, not an address. */ |
2127 | op->am = (*l == '-' ? 3 : 1); | |
b18c562e | 2128 | op->ol = 1; |
00b32ff2 | 2129 | op->vshift = 0; |
b18c562e NC |
2130 | __tl = l; |
2131 | parse_exp (__tl, &(op->exp)); | |
2132 | return 0; | |
2133 | } | |
2134 | while (0); | |
2135 | ||
2136 | /* Unreachable. */ | |
2137 | as_bad (_("unknown addressing mode for operand %s"), l); | |
2138 | return 1; | |
2469cfa2 NC |
2139 | } |
2140 | ||
b18c562e | 2141 | |
2469cfa2 | 2142 | static int |
13761a11 NC |
2143 | msp430_dstoperand (struct msp430_operand_s * op, |
2144 | char * l, | |
2145 | int bin, | |
2146 | bfd_boolean allow_20bit_values, | |
2147 | bfd_boolean constants_allowed) | |
2469cfa2 NC |
2148 | { |
2149 | int dummy; | |
13761a11 NC |
2150 | int ret = msp430_srcoperand (op, l, bin, & dummy, |
2151 | allow_20bit_values, | |
2152 | constants_allowed); | |
b18c562e | 2153 | |
2469cfa2 NC |
2154 | if (ret) |
2155 | return ret; | |
2156 | ||
2157 | if (op->am == 2) | |
2158 | { | |
47990a6a | 2159 | char *__tl = (char *) "0"; |
2469cfa2 NC |
2160 | |
2161 | op->mode = OP_EXP; | |
2162 | op->am = 1; | |
2163 | op->ol = 1; | |
00b32ff2 | 2164 | op->vshift = 0; |
2469cfa2 | 2165 | parse_exp (__tl, &(op->exp)); |
b18c562e | 2166 | |
2469cfa2 NC |
2167 | if (op->exp.X_op != O_constant || op->exp.X_add_number != 0) |
2168 | { | |
2169 | as_bad (_("Internal bug. Try to use 0(r%d) instead of @r%d"), | |
2170 | op->reg, op->reg); | |
2171 | return 1; | |
2172 | } | |
2173 | return 0; | |
2174 | } | |
2175 | ||
2176 | if (op->am > 1) | |
2177 | { | |
2178 | as_bad (_ | |
2179 | ("this addressing mode is not applicable for destination operand")); | |
2180 | return 1; | |
2181 | } | |
2182 | return 0; | |
2183 | } | |
2184 | ||
13761a11 NC |
2185 | /* Attempt to encode a MOVA instruction with the given operands. |
2186 | Returns the length of the encoded instruction if successful | |
2187 | or 0 upon failure. If the encoding fails, an error message | |
2188 | will be returned if a pointer is provided. */ | |
2189 | ||
2190 | static int | |
2191 | try_encode_mova (bfd_boolean imm_op, | |
2192 | int bin, | |
2193 | struct msp430_operand_s * op1, | |
2194 | struct msp430_operand_s * op2, | |
2195 | const char ** error_message_return) | |
2196 | { | |
2197 | short ZEROS = 0; | |
2198 | char *frag; | |
2199 | int where; | |
2200 | ||
2201 | /* Only a restricted subset of the normal MSP430 addressing modes | |
2202 | are supported here, so check for the ones that are allowed. */ | |
2203 | if (imm_op) | |
2204 | { | |
2205 | if (op1->mode == OP_EXP) | |
2206 | { | |
2207 | if (op2->mode != OP_REG) | |
2208 | { | |
2209 | if (error_message_return != NULL) | |
2210 | * error_message_return = _("expected register as second argument of %s"); | |
2211 | return 0; | |
2212 | } | |
2213 | ||
2214 | if (op1->am == 3) | |
2215 | { | |
2216 | /* MOVA #imm20, Rdst. */ | |
2217 | bin |= 0x80 | op2->reg; | |
2218 | frag = frag_more (4); | |
2219 | where = frag - frag_now->fr_literal; | |
2220 | if (op1->exp.X_op == O_constant) | |
2221 | { | |
2222 | bin |= ((op1->exp.X_add_number >> 16) & 0xf) << 8; | |
2223 | bfd_putl16 ((bfd_vma) bin, frag); | |
2224 | bfd_putl16 (op1->exp.X_add_number & 0xffff, frag + 2); | |
2225 | } | |
2226 | else | |
2227 | { | |
2228 | bfd_putl16 ((bfd_vma) bin, frag); | |
2229 | fix_new_exp (frag_now, where, 4, &(op1->exp), FALSE, | |
2230 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
2231 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2232 | } | |
2233 | ||
2234 | return 4; | |
2235 | } | |
2236 | else if (op1->am == 1) | |
2237 | { | |
2238 | /* MOVA z16(Rsrc), Rdst. */ | |
2239 | bin |= 0x30 | (op1->reg << 8) | op2->reg; | |
2240 | frag = frag_more (4); | |
2241 | where = frag - frag_now->fr_literal; | |
2242 | bfd_putl16 ((bfd_vma) bin, frag); | |
2243 | if (op1->exp.X_op == O_constant) | |
2244 | { | |
2245 | if (op1->exp.X_add_number > 0xffff | |
2246 | || op1->exp.X_add_number < -(0x7fff)) | |
2247 | { | |
2248 | if (error_message_return != NULL) | |
2249 | * error_message_return = _("index value too big for %s"); | |
2250 | return 0; | |
2251 | } | |
2252 | bfd_putl16 (op1->exp.X_add_number & 0xffff, frag + 2); | |
2253 | } | |
2254 | else | |
2255 | { | |
2256 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2257 | fix_new_exp (frag_now, where + 2, 2, &(op1->exp), FALSE, | |
2258 | op1->reg == 0 ? | |
2259 | BFD_RELOC_MSP430X_PCR16 : | |
2260 | BFD_RELOC_MSP430X_ABS16); | |
2261 | } | |
2262 | return 4; | |
2263 | } | |
2264 | ||
2265 | if (error_message_return != NULL) | |
2266 | * error_message_return = _("unexpected addressing mode for %s"); | |
2267 | return 0; | |
2268 | } | |
2269 | else if (op1->am == 0) | |
2270 | { | |
2271 | /* MOVA Rsrc, ... */ | |
2272 | if (op2->mode == OP_REG) | |
2273 | { | |
2274 | bin |= 0xc0 | (op1->reg << 8) | op2->reg; | |
2275 | frag = frag_more (2); | |
2276 | where = frag - frag_now->fr_literal; | |
2277 | bfd_putl16 ((bfd_vma) bin, frag); | |
2278 | return 2; | |
2279 | } | |
2280 | else if (op2->am == 1) | |
2281 | { | |
2282 | if (op2->reg == 2) | |
2283 | { | |
2284 | /* MOVA Rsrc, &abs20. */ | |
2285 | bin |= 0x60 | (op1->reg << 8); | |
2286 | frag = frag_more (4); | |
2287 | where = frag - frag_now->fr_literal; | |
2288 | if (op2->exp.X_op == O_constant) | |
2289 | { | |
2290 | bin |= (op2->exp.X_add_number >> 16) & 0xf; | |
2291 | bfd_putl16 ((bfd_vma) bin, frag); | |
2292 | bfd_putl16 (op2->exp.X_add_number & 0xffff, frag + 2); | |
2293 | } | |
2294 | else | |
2295 | { | |
2296 | bfd_putl16 ((bfd_vma) bin, frag); | |
2297 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2298 | fix_new_exp (frag_now, where, 4, &(op2->exp), FALSE, | |
2299 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
2300 | } | |
2301 | return 4; | |
2302 | } | |
2303 | ||
2304 | /* MOVA Rsrc, z16(Rdst). */ | |
2305 | bin |= 0x70 | (op1->reg << 8) | op2->reg; | |
2306 | frag = frag_more (4); | |
2307 | where = frag - frag_now->fr_literal; | |
2308 | bfd_putl16 ((bfd_vma) bin, frag); | |
2309 | if (op2->exp.X_op == O_constant) | |
2310 | { | |
2311 | if (op2->exp.X_add_number > 0xffff | |
2312 | || op2->exp.X_add_number < -(0x7fff)) | |
2313 | { | |
2314 | if (error_message_return != NULL) | |
2315 | * error_message_return = _("index value too big for %s"); | |
2316 | return 0; | |
2317 | } | |
2318 | bfd_putl16 (op2->exp.X_add_number & 0xffff, frag + 2); | |
2319 | } | |
2320 | else | |
2321 | { | |
2322 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2323 | fix_new_exp (frag_now, where + 2, 2, &(op2->exp), FALSE, | |
2324 | op2->reg == 0 ? | |
2325 | BFD_RELOC_MSP430X_PCR16 : | |
2326 | BFD_RELOC_MSP430X_ABS16); | |
2327 | } | |
2328 | return 4; | |
2329 | } | |
2330 | ||
2331 | if (error_message_return != NULL) | |
2332 | * error_message_return = _("unexpected addressing mode for %s"); | |
2333 | return 0; | |
2334 | } | |
2335 | } | |
2336 | ||
2337 | /* imm_op == FALSE. */ | |
2338 | ||
2339 | if (op1->reg == 2 && op1->am == 1 && op1->mode == OP_EXP) | |
2340 | { | |
2341 | /* MOVA &abs20, Rdst. */ | |
2342 | if (op2->mode != OP_REG) | |
2343 | { | |
2344 | if (error_message_return != NULL) | |
2345 | * error_message_return = _("expected register as second argument of %s"); | |
2346 | return 0; | |
2347 | } | |
2348 | ||
2349 | if (op2->reg == 2 || op2->reg == 3) | |
2350 | { | |
2351 | if (error_message_return != NULL) | |
2352 | * error_message_return = _("constant generator destination register found in %s"); | |
2353 | return 0; | |
2354 | } | |
2355 | ||
2356 | bin |= 0x20 | op2->reg; | |
2357 | frag = frag_more (4); | |
2358 | where = frag - frag_now->fr_literal; | |
2359 | if (op1->exp.X_op == O_constant) | |
2360 | { | |
2361 | bin |= ((op1->exp.X_add_number >> 16) & 0xf) << 8; | |
2362 | bfd_putl16 ((bfd_vma) bin, frag); | |
2363 | bfd_putl16 (op1->exp.X_add_number & 0xffff, frag + 2); | |
2364 | } | |
2365 | else | |
2366 | { | |
2367 | bfd_putl16 ((bfd_vma) bin, frag); | |
2368 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
2369 | fix_new_exp (frag_now, where, 4, &(op1->exp), FALSE, | |
2370 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
2371 | } | |
2372 | return 4; | |
2373 | } | |
2374 | else if (op1->mode == OP_REG) | |
2375 | { | |
2376 | if (op1->am == 3) | |
2377 | { | |
2378 | /* MOVA @Rsrc+, Rdst. */ | |
2379 | if (op2->mode != OP_REG) | |
2380 | { | |
2381 | if (error_message_return != NULL) | |
2382 | * error_message_return = _("expected register as second argument of %s"); | |
2383 | return 0; | |
2384 | } | |
2385 | ||
2386 | if (op2->reg == 2 || op2->reg == 3) | |
2387 | { | |
2388 | if (error_message_return != NULL) | |
2389 | * error_message_return = _("constant generator destination register found in %s"); | |
2390 | return 0; | |
2391 | } | |
2392 | ||
2393 | if (op1->reg == 2 || op1->reg == 3) | |
2394 | { | |
2395 | if (error_message_return != NULL) | |
2396 | * error_message_return = _("constant generator source register found in %s"); | |
2397 | return 0; | |
2398 | } | |
2399 | ||
2400 | bin |= 0x10 | (op1->reg << 8) | op2->reg; | |
2401 | frag = frag_more (2); | |
2402 | where = frag - frag_now->fr_literal; | |
2403 | bfd_putl16 ((bfd_vma) bin, frag); | |
2404 | return 2; | |
2405 | } | |
2406 | else if (op1->am == 2) | |
2407 | { | |
2408 | /* MOVA @Rsrc,Rdst */ | |
2409 | if (op2->mode != OP_REG) | |
2410 | { | |
2411 | if (error_message_return != NULL) | |
2412 | * error_message_return = _("expected register as second argument of %s"); | |
2413 | return 0; | |
2414 | } | |
2415 | ||
2416 | if (op2->reg == 2 || op2->reg == 3) | |
2417 | { | |
2418 | if (error_message_return != NULL) | |
2419 | * error_message_return = _("constant generator destination register found in %s"); | |
2420 | return 0; | |
2421 | } | |
2422 | ||
2423 | if (op1->reg == 2 || op1->reg == 3) | |
2424 | { | |
2425 | if (error_message_return != NULL) | |
2426 | * error_message_return = _("constant generator source register found in %s"); | |
2427 | return 0; | |
2428 | } | |
2429 | ||
2430 | bin |= (op1->reg << 8) | op2->reg; | |
2431 | frag = frag_more (2); | |
2432 | where = frag - frag_now->fr_literal; | |
2433 | bfd_putl16 ((bfd_vma) bin, frag); | |
2434 | return 2; | |
2435 | } | |
2436 | } | |
2437 | ||
2438 | if (error_message_return != NULL) | |
2439 | * error_message_return = _("unexpected addressing mode for %s"); | |
2440 | ||
2441 | return 0; | |
2442 | } | |
2443 | ||
2213f746 NC |
2444 | #define NOP_CHECK_INTERRUPT (1 << 0) |
2445 | #define NOP_CHECK_CPU12 (1 << 1) | |
2446 | #define NOP_CHECK_CPU19 (1 << 2) | |
2447 | ||
2448 | static signed int check_for_nop = 0; | |
65d7bab5 | 2449 | |
638d3803 NC |
2450 | #define is_opcode(NAME) (strcmp (opcode->name, NAME) == 0) |
2451 | ||
b18c562e NC |
2452 | /* Parse instruction operands. |
2453 | Return binary opcode. */ | |
2454 | ||
2455 | static unsigned int | |
2456 | msp430_operands (struct msp430_opcode_s * opcode, char * line) | |
2469cfa2 | 2457 | { |
b18c562e | 2458 | int bin = opcode->bin_opcode; /* Opcode mask. */ |
13761a11 | 2459 | int insn_length = 0; |
b18c562e NC |
2460 | char l1[MAX_OP_LEN], l2[MAX_OP_LEN]; |
2461 | char *frag; | |
2462 | int where; | |
2463 | struct msp430_operand_s op1, op2; | |
2464 | int res = 0; | |
2465 | static short ZEROS = 0; | |
00b32ff2 | 2466 | bfd_boolean byte_op, imm_op; |
13761a11 NC |
2467 | int op_length = 0; |
2468 | int fmt; | |
2469 | int extended = 0x1800; | |
2470 | bfd_boolean extended_op = FALSE; | |
2471 | bfd_boolean addr_op; | |
2472 | const char * error_message; | |
2473 | static signed int repeat_count = 0; | |
927f2d25 | 2474 | static bfd_boolean prev_insn_is_nop = FALSE; |
13761a11 | 2475 | bfd_boolean fix_emitted; |
2469cfa2 | 2476 | |
b18c562e NC |
2477 | /* Opcode is the one from opcodes table |
2478 | line contains something like | |
2479 | [.w] @r2+, 5(R1) | |
2480 | or | |
2481 | .b @r2+, 5(R1). */ | |
2469cfa2 | 2482 | |
00b32ff2 | 2483 | byte_op = FALSE; |
38d77545 NC |
2484 | addr_op = FALSE; |
2485 | if (*line == '.') | |
2469cfa2 | 2486 | { |
38d77545 NC |
2487 | bfd_boolean check = FALSE; |
2488 | ++ line; | |
2489 | ||
2490 | switch (TOLOWER (* line)) | |
2491 | { | |
2492 | case 'b': | |
2493 | /* Byte operation. */ | |
2494 | bin |= BYTE_OPERATION; | |
00b32ff2 | 2495 | byte_op = TRUE; |
38d77545 NC |
2496 | check = TRUE; |
2497 | break; | |
2498 | ||
2499 | case 'a': | |
2500 | /* "Address" ops work on 20-bit values. */ | |
2501 | addr_op = TRUE; | |
2502 | bin |= BYTE_OPERATION; | |
2503 | check = TRUE; | |
2504 | break; | |
2505 | ||
2506 | case 'w': | |
2507 | /* Word operation - this is the default. */ | |
2508 | check = TRUE; | |
2509 | break; | |
2510 | ||
2511 | case 0: | |
2512 | case ' ': | |
2513 | case '\n': | |
2514 | case '\r': | |
2515 | as_warn (_("no size modifier after period, .w assumed")); | |
2516 | break; | |
2517 | ||
2518 | default: | |
2519 | as_bad (_("unrecognised instruction size modifier .%c"), | |
2520 | * line); | |
2521 | return 0; | |
2522 | } | |
2523 | ||
2524 | if (check) | |
2525 | { | |
2526 | ++ line; | |
2527 | ||
2528 | } | |
2469cfa2 NC |
2529 | } |
2530 | ||
38d77545 | 2531 | if (*line && ! ISSPACE (*line)) |
13761a11 | 2532 | { |
38d77545 NC |
2533 | as_bad (_("junk found after instruction: %s.%s"), |
2534 | opcode->name, line); | |
2535 | return 0; | |
13761a11 | 2536 | } |
13761a11 | 2537 | |
38d77545 NC |
2538 | /* Catch the case where the programmer has used a ".a" size modifier on an |
2539 | instruction that does not support it. Look for an alternative extended | |
2540 | instruction that has the same name without the period. Eg: "add.a" | |
2541 | becomes "adda". Although this not an officially supported way of | |
2542 | specifing instruction aliases other MSP430 assemblers allow it. So we | |
2543 | support it for compatibility purposes. */ | |
2544 | if (addr_op && opcode->fmt >= 0) | |
2545 | { | |
f86f5863 | 2546 | const char * old_name = opcode->name; |
38d77545 NC |
2547 | char real_name[32]; |
2548 | ||
2549 | sprintf (real_name, "%sa", old_name); | |
2550 | opcode = hash_find (msp430_hash, real_name); | |
2551 | if (opcode == NULL) | |
2552 | { | |
2553 | as_bad (_("instruction %s.a does not exist"), old_name); | |
2554 | return 0; | |
2555 | } | |
2556 | #if 0 /* Enable for debugging. */ | |
2557 | as_warn ("treating %s.a as %s", old_name, real_name); | |
2558 | #endif | |
2559 | addr_op = FALSE; | |
2560 | bin = opcode->bin_opcode; | |
2561 | } | |
2469cfa2 | 2562 | |
13761a11 NC |
2563 | if (opcode->fmt != -1 |
2564 | && opcode->insn_opnumb | |
2565 | && (!*line || *line == '\n')) | |
2469cfa2 | 2566 | { |
b18c562e NC |
2567 | as_bad (_("instruction %s requires %d operand(s)"), |
2568 | opcode->name, opcode->insn_opnumb); | |
2569 | return 0; | |
2570 | } | |
2469cfa2 | 2571 | |
b18c562e NC |
2572 | memset (l1, 0, sizeof (l1)); |
2573 | memset (l2, 0, sizeof (l2)); | |
2574 | memset (&op1, 0, sizeof (op1)); | |
2575 | memset (&op2, 0, sizeof (op2)); | |
2469cfa2 | 2576 | |
00b32ff2 | 2577 | imm_op = FALSE; |
2469cfa2 | 2578 | |
13761a11 NC |
2579 | if ((fmt = opcode->fmt) < 0) |
2580 | { | |
638d3803 | 2581 | if (! target_is_430x ()) |
13761a11 NC |
2582 | { |
2583 | as_bad (_("instruction %s requires MSP430X mcu"), | |
2584 | opcode->name); | |
2585 | return 0; | |
2586 | } | |
3739860c | 2587 | |
13761a11 NC |
2588 | fmt = (-fmt) - 1; |
2589 | extended_op = TRUE; | |
2590 | } | |
2591 | ||
2592 | if (repeat_count) | |
2593 | { | |
2594 | /* If requested set the extended instruction repeat count. */ | |
2595 | if (extended_op) | |
2596 | { | |
2597 | if (repeat_count > 0) | |
2598 | extended |= (repeat_count - 1); | |
2599 | else | |
2600 | extended |= (1 << 7) | (- repeat_count); | |
2601 | } | |
2602 | else | |
2603 | as_bad (_("unable to repeat %s insn"), opcode->name); | |
2604 | ||
2605 | repeat_count = 0; | |
2606 | } | |
2607 | ||
2213f746 | 2608 | if (check_for_nop) |
b18c562e | 2609 | { |
2213f746 | 2610 | if (! is_opcode ("nop")) |
2469cfa2 | 2611 | { |
2213f746 NC |
2612 | bfd_boolean doit = FALSE; |
2613 | ||
2614 | do | |
65d7bab5 | 2615 | { |
2213f746 | 2616 | switch (check_for_nop & - check_for_nop) |
65d7bab5 | 2617 | { |
2213f746 | 2618 | case NOP_CHECK_INTERRUPT: |
ff1fe6fa | 2619 | if (warn_interrupt_nops) |
65d7bab5 NC |
2620 | { |
2621 | if (gen_interrupt_nops) | |
2622 | as_warn (_("NOP inserted between two instructions that change interrupt state")); | |
2623 | else | |
2624 | as_warn (_("a NOP might be needed here because of successive changes in interrupt state")); | |
2625 | } | |
2626 | ||
ff1fe6fa | 2627 | if (gen_interrupt_nops) |
2213f746 NC |
2628 | /* Emit a NOP between interrupt enable/disable. |
2629 | See 1.3.4.1 of the MSP430x5xx User Guide. */ | |
2630 | doit = TRUE; | |
2631 | break; | |
2632 | ||
2633 | case NOP_CHECK_CPU12: | |
2634 | if (silicon_errata_warn & SILICON_ERRATA_CPU12) | |
2635 | as_warn (_("CPU12: CMP/BIT with PC destinstion ignores next instruction")); | |
2636 | ||
2637 | if (silicon_errata_fix & SILICON_ERRATA_CPU12) | |
2638 | doit = TRUE; | |
2639 | break; | |
2640 | ||
2641 | case NOP_CHECK_CPU19: | |
2642 | if (silicon_errata_warn & SILICON_ERRATA_CPU19) | |
2643 | as_warn (_("CPU19: Instruction setting CPUOFF must be followed by a NOP")); | |
65d7bab5 | 2644 | |
2213f746 NC |
2645 | if (silicon_errata_fix & SILICON_ERRATA_CPU19) |
2646 | doit = TRUE; | |
2647 | break; | |
2648 | ||
2649 | default: | |
2650 | as_bad (_("internal error: unknown nop check state")); | |
2651 | break; | |
2652 | } | |
2653 | check_for_nop &= ~ (check_for_nop & - check_for_nop); | |
2654 | } | |
2655 | while (check_for_nop); | |
2656 | ||
2657 | if (doit) | |
2658 | { | |
2659 | frag = frag_more (2); | |
2660 | bfd_putl16 ((bfd_vma) 0x4303 /* NOP */, frag); | |
2661 | dwarf2_emit_insn (2); | |
65d7bab5 | 2662 | } |
2213f746 NC |
2663 | } |
2664 | ||
2665 | check_for_nop = 0; | |
2666 | } | |
2667 | ||
2668 | switch (fmt) | |
2669 | { | |
2670 | case 0: /* Emulated. */ | |
2671 | switch (opcode->insn_opnumb) | |
2672 | { | |
2673 | case 0: | |
927f2d25 NC |
2674 | if (is_opcode ("eint")) |
2675 | { | |
2676 | if (! prev_insn_is_nop) | |
2677 | { | |
2678 | if (gen_interrupt_nops) | |
2679 | { | |
2680 | frag = frag_more (2); | |
2681 | bfd_putl16 ((bfd_vma) 0x4303 /* NOP */, frag); | |
2682 | dwarf2_emit_insn (2); | |
2683 | ||
2684 | if (warn_interrupt_nops) | |
2685 | as_warn (_("inserting a NOP before EINT")); | |
2686 | } | |
2687 | else if (warn_interrupt_nops) | |
2688 | as_warn (_("a NOP might be needed before the EINT")); | |
2689 | } | |
2690 | } | |
2691 | else if (is_opcode ("dint")) | |
2213f746 | 2692 | check_for_nop |= NOP_CHECK_INTERRUPT; |
65d7bab5 | 2693 | |
b18c562e | 2694 | /* Set/clear bits instructions. */ |
13761a11 NC |
2695 | if (extended_op) |
2696 | { | |
2697 | if (!addr_op) | |
2698 | extended |= BYTE_OPERATION; | |
2699 | ||
2700 | /* Emit the extension word. */ | |
2701 | insn_length += 2; | |
65d7bab5 | 2702 | frag = frag_more (2); |
13761a11 NC |
2703 | bfd_putl16 (extended, frag); |
2704 | } | |
638d3803 | 2705 | |
13761a11 | 2706 | insn_length += 2; |
65d7bab5 | 2707 | frag = frag_more (2); |
b18c562e | 2708 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 | 2709 | dwarf2_emit_insn (insn_length); |
b18c562e | 2710 | break; |
13761a11 | 2711 | |
b18c562e NC |
2712 | case 1: |
2713 | /* Something which works with destination operand. */ | |
2714 | line = extract_operand (line, l1, sizeof (l1)); | |
13761a11 | 2715 | res = msp430_dstoperand (&op1, l1, opcode->bin_opcode, extended_op, TRUE); |
b18c562e NC |
2716 | if (res) |
2717 | break; | |
2469cfa2 | 2718 | |
65d7bab5 NC |
2719 | bin |= (op1.reg | (op1.am << 7)); |
2720 | ||
2213f746 NC |
2721 | /* If the PC is the destination... */ |
2722 | if (op1.am == 0 && op1.reg == 0 | |
2723 | /* ... and the opcode alters the SR. */ | |
2724 | && !(is_opcode ("bic") || is_opcode ("bis") || is_opcode ("mov") | |
2725 | || is_opcode ("bicx") || is_opcode ("bisx") || is_opcode ("movx"))) | |
65d7bab5 | 2726 | { |
2213f746 NC |
2727 | if (silicon_errata_fix & SILICON_ERRATA_CPU11) |
2728 | as_bad (_("CPU11: PC is destinstion of SR altering instruction")); | |
2729 | else if (silicon_errata_warn & SILICON_ERRATA_CPU11) | |
2730 | as_warn (_("CPU11: PC is destinstion of SR altering instruction")); | |
65d7bab5 | 2731 | } |
2213f746 NC |
2732 | |
2733 | /* If the status register is the destination... */ | |
2734 | if (op1.am == 0 && op1.reg == 2 | |
2735 | /* ... and the opcode alters the SR. */ | |
2736 | && (is_opcode ("adc") || is_opcode ("dec") || is_opcode ("decd") | |
2737 | || is_opcode ("inc") || is_opcode ("incd") || is_opcode ("inv") | |
2738 | || is_opcode ("sbc") || is_opcode ("sxt") | |
2739 | || is_opcode ("adcx") || is_opcode ("decx") || is_opcode ("decdx") | |
2740 | || is_opcode ("incx") || is_opcode ("incdx") || is_opcode ("invx") | |
2741 | || is_opcode ("sbcx") | |
2742 | )) | |
2743 | { | |
2744 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
2745 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
2746 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
2747 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
2748 | } | |
2749 | ||
2750 | if (is_opcode ("clr") && bin == 0x4302 /* CLR R2*/) | |
2751 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
65d7bab5 | 2752 | |
13761a11 | 2753 | /* Compute the entire instruction length, in bytes. */ |
65d7bab5 NC |
2754 | op_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2); |
2755 | insn_length += op_length; | |
2756 | frag = frag_more (op_length); | |
b18c562e | 2757 | where = frag - frag_now->fr_literal; |
38d77545 | 2758 | |
13761a11 | 2759 | if (extended_op) |
2469cfa2 | 2760 | { |
13761a11 NC |
2761 | if (!addr_op) |
2762 | extended |= BYTE_OPERATION; | |
2763 | ||
2764 | if (op1.ol != 0 && ((extended & 0xf) != 0)) | |
2765 | { | |
2766 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
2767 | extended &= ~ 0xf; | |
2768 | } | |
38d77545 | 2769 | |
13761a11 NC |
2770 | if (op1.mode == OP_EXP) |
2771 | { | |
2772 | if (op1.exp.X_op == O_constant) | |
2773 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
2774 | ||
e66c3c25 | 2775 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
2776 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
2777 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
2778 | else | |
2779 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
2780 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
2781 | } | |
38d77545 | 2782 | |
13761a11 NC |
2783 | /* Emit the extension word. */ |
2784 | bfd_putl16 (extended, frag); | |
2785 | frag += 2; | |
2786 | where += 2; | |
2787 | } | |
2788 | ||
13761a11 NC |
2789 | bfd_putl16 ((bfd_vma) bin, frag); |
2790 | frag += 2; | |
2791 | where += 2; | |
2792 | ||
2793 | if (op1.mode == OP_EXP) | |
2794 | { | |
2795 | if (op1.exp.X_op == O_constant) | |
2796 | { | |
2797 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
2798 | } | |
2469cfa2 | 2799 | else |
13761a11 NC |
2800 | { |
2801 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
2802 | ||
2803 | if (!extended_op) | |
2804 | { | |
2805 | if (op1.reg) | |
2806 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 2807 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
2808 | else |
2809 | fix_new_exp (frag_now, where, 2, | |
2810 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2811 | } | |
2812 | } | |
2813 | } | |
2814 | ||
13761a11 | 2815 | dwarf2_emit_insn (insn_length); |
b18c562e | 2816 | break; |
2469cfa2 | 2817 | |
b18c562e | 2818 | case 2: |
13761a11 NC |
2819 | /* Shift instruction. */ |
2820 | line = extract_operand (line, l1, sizeof (l1)); | |
2821 | strncpy (l2, l1, sizeof (l2)); | |
2822 | l2[sizeof (l2) - 1] = '\0'; | |
2823 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, TRUE); | |
2824 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, extended_op, TRUE); | |
2825 | ||
2826 | if (res) | |
2827 | break; /* An error occurred. All warnings were done before. */ | |
2828 | ||
2829 | insn_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2) + (op2.ol * 2); | |
2830 | frag = frag_more (insn_length); | |
2831 | where = frag - frag_now->fr_literal; | |
2832 | ||
d1706f38 NC |
2833 | if (target_is_430xv2 () |
2834 | && op1.mode == OP_REG | |
38d77545 | 2835 | && op1.reg == 0 |
638d3803 NC |
2836 | && (is_opcode ("rlax") |
2837 | || is_opcode ("rlcx") | |
2838 | || is_opcode ("rla") | |
2839 | || is_opcode ("rlc"))) | |
2840 | { | |
2841 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 2842 | break; |
638d3803 | 2843 | } |
38d77545 | 2844 | |
2213f746 NC |
2845 | /* If the status register is the destination... */ |
2846 | if (op1.am == 0 && op1.reg == 2 | |
2847 | /* ... and the opcode alters the SR. */ | |
2848 | && (is_opcode ("rla") || is_opcode ("rlc") | |
2849 | || is_opcode ("rlax") || is_opcode ("rlcx") | |
2850 | )) | |
2851 | { | |
2852 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
2853 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
2854 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
2855 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
2856 | } | |
2857 | ||
13761a11 NC |
2858 | if (extended_op) |
2859 | { | |
2860 | if (!addr_op) | |
2861 | extended |= BYTE_OPERATION; | |
2862 | ||
2863 | if ((op1.ol != 0 || op2.ol != 0) && ((extended & 0xf) != 0)) | |
2864 | { | |
2865 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
2866 | extended &= ~ 0xf; | |
2867 | } | |
38d77545 | 2868 | |
13761a11 NC |
2869 | if (op1.mode == OP_EXP) |
2870 | { | |
2871 | if (op1.exp.X_op == O_constant) | |
2872 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
2873 | ||
e66c3c25 | 2874 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
2875 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
2876 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
2877 | else | |
2878 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
2879 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
2880 | } | |
2881 | ||
2882 | if (op2.mode == OP_EXP) | |
2883 | { | |
2884 | if (op2.exp.X_op == O_constant) | |
2885 | extended |= (op2.exp.X_add_number >> 16) & 0xf; | |
2886 | ||
2887 | else if (op1.mode == OP_EXP) | |
2888 | fix_new_exp (frag_now, where, 8, &(op2.exp), FALSE, | |
2889 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_ODST | |
2890 | : BFD_RELOC_MSP430X_PCR20_EXT_ODST); | |
2891 | else | |
2892 | fix_new_exp (frag_now, where, 6, &(op2.exp), FALSE, | |
2893 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_DST | |
2894 | : BFD_RELOC_MSP430X_PCR20_EXT_DST); | |
2895 | } | |
2896 | ||
2897 | /* Emit the extension word. */ | |
2898 | bfd_putl16 (extended, frag); | |
2899 | frag += 2; | |
2900 | where += 2; | |
2901 | } | |
2902 | ||
2903 | bin |= (op2.reg | (op1.reg << 8) | (op1.am << 4) | (op2.am << 7)); | |
2904 | bfd_putl16 ((bfd_vma) bin, frag); | |
2905 | frag += 2; | |
2906 | where += 2; | |
2907 | ||
2908 | if (op1.mode == OP_EXP) | |
2909 | { | |
2910 | if (op1.exp.X_op == O_constant) | |
2911 | { | |
2912 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
2913 | } | |
2914 | else | |
2915 | { | |
2916 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
2917 | ||
2918 | if (!extended_op) | |
2919 | { | |
e66c3c25 | 2920 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 2921 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 2922 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
2923 | else |
2924 | fix_new_exp (frag_now, where, 2, | |
2925 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2926 | } | |
2927 | } | |
2928 | frag += 2; | |
2929 | where += 2; | |
2930 | } | |
2931 | ||
2932 | if (op2.mode == OP_EXP) | |
2933 | { | |
2934 | if (op2.exp.X_op == O_constant) | |
2935 | { | |
2936 | bfd_putl16 (op2.exp.X_add_number & 0xffff, frag); | |
2937 | } | |
2938 | else | |
2939 | { | |
2940 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
2941 | ||
2942 | if (!extended_op) | |
2943 | { | |
2944 | if (op2.reg) /* Not PC relative. */ | |
2945 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 2946 | &(op2.exp), FALSE, CHECK_RELOC_MSP430 (op2)); |
13761a11 NC |
2947 | else |
2948 | fix_new_exp (frag_now, where, 2, | |
2949 | &(op2.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2950 | } | |
2951 | } | |
2952 | } | |
2953 | ||
2954 | dwarf2_emit_insn (insn_length); | |
2955 | break; | |
2956 | ||
2957 | case 3: | |
2958 | /* Branch instruction => mov dst, r0. */ | |
2959 | if (extended_op) | |
2960 | { | |
2961 | as_bad ("Internal error: state 0/3 not coded for extended instructions"); | |
65d7bab5 | 2962 | break; |
13761a11 NC |
2963 | } |
2964 | ||
2965 | line = extract_operand (line, l1, sizeof (l1)); | |
2966 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, FALSE); | |
2967 | if (res) | |
2968 | break; | |
2969 | ||
00b32ff2 NC |
2970 | byte_op = FALSE; |
2971 | imm_op = FALSE; | |
13761a11 NC |
2972 | bin |= ((op1.reg << 8) | (op1.am << 4)); |
2973 | op_length = 2 + 2 * op1.ol; | |
2974 | frag = frag_more (op_length); | |
2975 | where = frag - frag_now->fr_literal; | |
2976 | bfd_putl16 ((bfd_vma) bin, frag); | |
2977 | ||
2978 | if (op1.mode == OP_EXP) | |
2979 | { | |
2980 | if (op1.exp.X_op == O_constant) | |
2981 | { | |
2982 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag + 2); | |
2983 | } | |
2984 | else | |
2985 | { | |
2986 | where += 2; | |
38d77545 | 2987 | |
13761a11 NC |
2988 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); |
2989 | ||
e66c3c25 | 2990 | if (op1.reg || op1.am == 3) |
13761a11 | 2991 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 2992 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
2993 | else |
2994 | fix_new_exp (frag_now, where, 2, | |
2995 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2996 | } | |
2997 | } | |
2998 | ||
2999 | dwarf2_emit_insn (insn_length + op_length); | |
3000 | break; | |
3001 | ||
3002 | case 4: | |
3003 | /* CALLA instructions. */ | |
3004 | fix_emitted = FALSE; | |
3005 | ||
3006 | line = extract_operand (line, l1, sizeof (l1)); | |
00b32ff2 | 3007 | imm_op = FALSE; |
13761a11 NC |
3008 | |
3009 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, | |
3010 | extended_op, FALSE); | |
3011 | if (res) | |
3012 | break; | |
3013 | ||
00b32ff2 | 3014 | byte_op = FALSE; |
13761a11 NC |
3015 | |
3016 | op_length = 2 + 2 * op1.ol; | |
3017 | frag = frag_more (op_length); | |
3018 | where = frag - frag_now->fr_literal; | |
3019 | ||
3020 | if (imm_op) | |
3021 | { | |
3022 | if (op1.am == 3) | |
3023 | { | |
3024 | bin |= 0xb0; | |
3025 | ||
3026 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3027 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
3028 | fix_emitted = TRUE; | |
3029 | } | |
3030 | else if (op1.am == 1) | |
3031 | { | |
3032 | if (op1.reg == 0) | |
3033 | { | |
3034 | bin |= 0x90; | |
3035 | ||
3036 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3037 | BFD_RELOC_MSP430X_PCR20_CALL); | |
3038 | fix_emitted = TRUE; | |
3039 | } | |
3040 | else | |
3041 | bin |= 0x50 | op1.reg; | |
3042 | } | |
3043 | else if (op1.am == 0) | |
3044 | bin |= 0x40 | op1.reg; | |
3045 | } | |
3046 | else if (op1.am == 1) | |
3047 | { | |
3048 | bin |= 0x80; | |
3049 | ||
3050 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3051 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
3052 | fix_emitted = TRUE; | |
3053 | } | |
3054 | else if (op1.am == 2) | |
3055 | bin |= 0x60 | op1.reg; | |
3056 | else if (op1.am == 3) | |
3057 | bin |= 0x70 | op1.reg; | |
38d77545 | 3058 | |
13761a11 NC |
3059 | bfd_putl16 ((bfd_vma) bin, frag); |
3060 | ||
3061 | if (op1.mode == OP_EXP) | |
3062 | { | |
3063 | if (op1.ol != 1) | |
3064 | { | |
3065 | as_bad ("Internal error: unexpected CALLA instruction length: %d\n", op1.ol); | |
65d7bab5 | 3066 | break; |
13761a11 NC |
3067 | } |
3068 | ||
3069 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
3070 | ||
3071 | if (! fix_emitted) | |
3072 | fix_new_exp (frag_now, where + 2, 2, | |
3073 | &(op1.exp), FALSE, BFD_RELOC_16); | |
3074 | } | |
3075 | ||
3076 | dwarf2_emit_insn (insn_length + op_length); | |
3077 | break; | |
3078 | ||
3079 | case 5: | |
b18c562e | 3080 | { |
13761a11 NC |
3081 | int n; |
3082 | int reg; | |
3083 | ||
3084 | /* [POP|PUSH]M[.A] #N, Rd */ | |
b18c562e | 3085 | line = extract_operand (line, l1, sizeof (l1)); |
13761a11 | 3086 | line = extract_operand (line, l2, sizeof (l2)); |
2469cfa2 | 3087 | |
13761a11 NC |
3088 | if (*l1 != '#') |
3089 | { | |
638d3803 | 3090 | as_bad (_("expected #n as first argument of %s"), opcode->name); |
65d7bab5 | 3091 | break; |
13761a11 NC |
3092 | } |
3093 | parse_exp (l1 + 1, &(op1.exp)); | |
3094 | if (op1.exp.X_op != O_constant) | |
3095 | { | |
3096 | as_bad (_("expected constant expression for first argument of %s"), | |
3097 | opcode->name); | |
65d7bab5 | 3098 | break; |
13761a11 | 3099 | } |
2469cfa2 | 3100 | |
13761a11 NC |
3101 | if ((reg = check_reg (l2)) == -1) |
3102 | { | |
3103 | as_bad (_("expected register as second argument of %s"), | |
3104 | opcode->name); | |
65d7bab5 | 3105 | break; |
13761a11 | 3106 | } |
2469cfa2 | 3107 | |
13761a11 NC |
3108 | op_length = 2; |
3109 | frag = frag_more (op_length); | |
b18c562e | 3110 | where = frag - frag_now->fr_literal; |
13761a11 NC |
3111 | bin = opcode->bin_opcode; |
3112 | if (! addr_op) | |
3113 | bin |= 0x100; | |
3114 | n = op1.exp.X_add_number; | |
3115 | bin |= (n - 1) << 4; | |
638d3803 | 3116 | if (is_opcode ("pushm")) |
13761a11 NC |
3117 | bin |= reg; |
3118 | else | |
3119 | { | |
3120 | if (reg - n + 1 < 0) | |
3121 | { | |
3122 | as_bad (_("Too many registers popped")); | |
65d7bab5 | 3123 | break; |
13761a11 | 3124 | } |
638d3803 | 3125 | |
65d7bab5 | 3126 | /* CPU21 errata: cannot use POPM to restore the SR register. */ |
d1706f38 | 3127 | if (target_is_430xv2 () |
638d3803 NC |
3128 | && (reg - n + 1 < 3) |
3129 | && reg >= 2 | |
3130 | && is_opcode ("popm")) | |
3131 | { | |
3132 | as_bad (_("Cannot use POPM to restore the SR register")); | |
65d7bab5 | 3133 | break; |
638d3803 NC |
3134 | } |
3135 | ||
13761a11 NC |
3136 | bin |= (reg - n + 1); |
3137 | } | |
3138 | ||
b18c562e | 3139 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3140 | dwarf2_emit_insn (op_length); |
3141 | break; | |
3142 | } | |
3143 | ||
3144 | case 6: | |
3145 | { | |
3146 | int n; | |
3147 | int reg; | |
3148 | ||
3149 | /* Bit rotation instructions. RRCM, RRAM, RRUM, RLAM. */ | |
3150 | if (extended & 0xff) | |
3151 | { | |
3152 | as_bad (_("repeat count cannot be used with %s"), opcode->name); | |
65d7bab5 | 3153 | break; |
13761a11 NC |
3154 | } |
3155 | ||
3156 | line = extract_operand (line, l1, sizeof (l1)); | |
3157 | line = extract_operand (line, l2, sizeof (l2)); | |
3158 | ||
3159 | if (*l1 != '#') | |
3160 | { | |
3161 | as_bad (_("expected #n as first argument of %s"), opcode->name); | |
65d7bab5 | 3162 | break; |
13761a11 NC |
3163 | } |
3164 | parse_exp (l1 + 1, &(op1.exp)); | |
3165 | if (op1.exp.X_op != O_constant) | |
3166 | { | |
3167 | as_bad (_("expected constant expression for first argument of %s"), | |
3168 | opcode->name); | |
65d7bab5 | 3169 | break; |
13761a11 NC |
3170 | } |
3171 | n = op1.exp.X_add_number; | |
3172 | if (n > 4 || n < 1) | |
b18c562e | 3173 | { |
13761a11 NC |
3174 | as_bad (_("expected first argument of %s to be in the range 1-4"), |
3175 | opcode->name); | |
65d7bab5 | 3176 | break; |
13761a11 | 3177 | } |
b18c562e | 3178 | |
13761a11 NC |
3179 | if ((reg = check_reg (l2)) == -1) |
3180 | { | |
3181 | as_bad (_("expected register as second argument of %s"), | |
3182 | opcode->name); | |
65d7bab5 | 3183 | break; |
b18c562e NC |
3184 | } |
3185 | ||
d1706f38 | 3186 | if (target_is_430xv2 () && reg == 0) |
638d3803 NC |
3187 | { |
3188 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 3189 | break; |
638d3803 NC |
3190 | } |
3191 | ||
13761a11 NC |
3192 | op_length = 2; |
3193 | frag = frag_more (op_length); | |
3194 | where = frag - frag_now->fr_literal; | |
3195 | ||
3196 | bin = opcode->bin_opcode; | |
3197 | if (! addr_op) | |
3198 | bin |= 0x10; | |
3199 | bin |= (n - 1) << 10; | |
3200 | bin |= reg; | |
3201 | ||
3202 | bfd_putl16 ((bfd_vma) bin, frag); | |
3203 | dwarf2_emit_insn (op_length); | |
3204 | break; | |
3205 | } | |
3206 | ||
13761a11 NC |
3207 | case 8: |
3208 | { | |
3209 | bfd_boolean need_reloc = FALSE; | |
3210 | int n; | |
3211 | int reg; | |
3212 | ||
3213 | /* ADDA, CMPA and SUBA address instructions. */ | |
3214 | if (extended & 0xff) | |
3215 | { | |
3216 | as_bad (_("repeat count cannot be used with %s"), opcode->name); | |
65d7bab5 | 3217 | break; |
13761a11 NC |
3218 | } |
3219 | ||
3220 | line = extract_operand (line, l1, sizeof (l1)); | |
3221 | line = extract_operand (line, l2, sizeof (l2)); | |
3222 | ||
3223 | bin = opcode->bin_opcode; | |
3224 | ||
3225 | if (*l1 == '#') | |
3226 | { | |
3227 | parse_exp (l1 + 1, &(op1.exp)); | |
3228 | ||
3229 | if (op1.exp.X_op == O_constant) | |
3230 | { | |
3231 | n = op1.exp.X_add_number; | |
3232 | if (n > 0xfffff || n < - (0x7ffff)) | |
3233 | { | |
3234 | as_bad (_("expected value of first argument of %s to fit into 20-bits"), | |
3235 | opcode->name); | |
65d7bab5 | 3236 | break; |
13761a11 NC |
3237 | } |
3238 | ||
3239 | bin |= ((n >> 16) & 0xf) << 8; | |
3240 | } | |
3241 | else | |
3242 | { | |
3243 | n = 0; | |
3244 | need_reloc = TRUE; | |
3245 | } | |
3246 | ||
3247 | op_length = 4; | |
3248 | } | |
3249 | else | |
3250 | { | |
3251 | if ((n = check_reg (l1)) == -1) | |
3252 | { | |
3253 | as_bad (_("expected register name or constant as first argument of %s"), | |
3254 | opcode->name); | |
65d7bab5 | 3255 | break; |
13761a11 NC |
3256 | } |
3257 | ||
3258 | bin |= (n << 8) | (1 << 6); | |
3259 | op_length = 2; | |
3260 | } | |
3261 | ||
3262 | if ((reg = check_reg (l2)) == -1) | |
3263 | { | |
3264 | as_bad (_("expected register as second argument of %s"), | |
3265 | opcode->name); | |
65d7bab5 | 3266 | break; |
13761a11 NC |
3267 | } |
3268 | ||
3269 | frag = frag_more (op_length); | |
3270 | where = frag - frag_now->fr_literal; | |
3271 | bin |= reg; | |
3272 | if (need_reloc) | |
3273 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3274 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
3275 | ||
3276 | bfd_putl16 ((bfd_vma) bin, frag); | |
3277 | if (op_length == 4) | |
3278 | bfd_putl16 ((bfd_vma) (n & 0xffff), frag + 2); | |
3279 | dwarf2_emit_insn (op_length); | |
b18c562e | 3280 | break; |
13761a11 | 3281 | } |
38d77545 | 3282 | |
13761a11 | 3283 | case 9: /* MOVA, BRA, RETA. */ |
00b32ff2 | 3284 | imm_op = FALSE; |
13761a11 | 3285 | bin = opcode->bin_opcode; |
b18c562e | 3286 | |
638d3803 | 3287 | if (is_opcode ("reta")) |
13761a11 NC |
3288 | { |
3289 | /* The RETA instruction does not take any arguments. | |
3290 | The implicit first argument is @SP+. | |
3291 | The implicit second argument is PC. */ | |
3292 | op1.mode = OP_REG; | |
3293 | op1.am = 3; | |
3294 | op1.reg = 1; | |
3295 | ||
3296 | op2.mode = OP_REG; | |
3297 | op2.reg = 0; | |
3298 | } | |
3299 | else | |
3300 | { | |
3301 | line = extract_operand (line, l1, sizeof (l1)); | |
3302 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, | |
3303 | &imm_op, extended_op, FALSE); | |
b18c562e | 3304 | |
638d3803 | 3305 | if (is_opcode ("bra")) |
13761a11 NC |
3306 | { |
3307 | /* This is the BRA synthetic instruction. | |
3308 | The second argument is always PC. */ | |
3309 | op2.mode = OP_REG; | |
3310 | op2.reg = 0; | |
3311 | } | |
3312 | else | |
3313 | { | |
3314 | line = extract_operand (line, l2, sizeof (l2)); | |
3315 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, | |
3316 | extended_op, TRUE); | |
3317 | } | |
38d77545 | 3318 | |
13761a11 NC |
3319 | if (res) |
3320 | break; /* Error occurred. All warnings were done before. */ | |
3321 | } | |
3322 | ||
3323 | /* Only a restricted subset of the normal MSP430 addressing modes | |
3324 | are supported here, so check for the ones that are allowed. */ | |
3325 | if ((op_length = try_encode_mova (imm_op, bin, & op1, & op2, | |
3326 | & error_message)) == 0) | |
2469cfa2 | 3327 | { |
13761a11 | 3328 | as_bad (error_message, opcode->name); |
65d7bab5 | 3329 | break; |
13761a11 NC |
3330 | } |
3331 | dwarf2_emit_insn (op_length); | |
3332 | break; | |
3333 | ||
3334 | case 10: /* RPT */ | |
3335 | line = extract_operand (line, l1, sizeof l1); | |
3336 | /* The RPT instruction only accepted immediates and registers. */ | |
3337 | if (*l1 == '#') | |
3338 | { | |
3339 | parse_exp (l1 + 1, &(op1.exp)); | |
3340 | if (op1.exp.X_op != O_constant) | |
3341 | { | |
3342 | as_bad (_("expected constant value as argument to RPT")); | |
65d7bab5 | 3343 | break; |
13761a11 NC |
3344 | } |
3345 | if (op1.exp.X_add_number < 1 | |
3346 | || op1.exp.X_add_number > (1 << 4)) | |
3347 | { | |
3348 | as_bad (_("expected constant in the range 2..16")); | |
65d7bab5 | 3349 | break; |
13761a11 NC |
3350 | } |
3351 | ||
3352 | /* We silently accept and ignore a repeat count of 1. */ | |
3353 | if (op1.exp.X_add_number > 1) | |
3354 | repeat_count = op1.exp.X_add_number; | |
3355 | } | |
3356 | else | |
3357 | { | |
3358 | int reg; | |
b18c562e | 3359 | |
13761a11 NC |
3360 | if ((reg = check_reg (l1)) != -1) |
3361 | { | |
3362 | if (reg == 0) | |
3363 | as_warn (_("PC used as an argument to RPT")); | |
3364 | else | |
3365 | repeat_count = - reg; | |
3366 | } | |
2469cfa2 | 3367 | else |
13761a11 NC |
3368 | { |
3369 | as_bad (_("expected constant or register name as argument to RPT insn")); | |
65d7bab5 | 3370 | break; |
13761a11 | 3371 | } |
2469cfa2 | 3372 | } |
b18c562e | 3373 | break; |
13761a11 NC |
3374 | |
3375 | default: | |
3376 | as_bad (_("Illegal emulated instruction ")); | |
3377 | break; | |
2469cfa2 | 3378 | } |
b18c562e | 3379 | break; |
2469cfa2 | 3380 | |
b18c562e NC |
3381 | case 1: /* Format 1, double operand. */ |
3382 | line = extract_operand (line, l1, sizeof (l1)); | |
3383 | line = extract_operand (line, l2, sizeof (l2)); | |
13761a11 NC |
3384 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, TRUE); |
3385 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, extended_op, TRUE); | |
2469cfa2 | 3386 | |
b18c562e NC |
3387 | if (res) |
3388 | break; /* Error occurred. All warnings were done before. */ | |
2469cfa2 | 3389 | |
13761a11 | 3390 | if (extended_op |
638d3803 | 3391 | && is_opcode ("movx") |
13761a11 NC |
3392 | && addr_op |
3393 | && msp430_enable_relax) | |
3394 | { | |
3395 | /* This is the MOVX.A instruction. See if we can convert | |
3396 | it into the MOVA instruction instead. This saves 2 bytes. */ | |
3397 | if ((op_length = try_encode_mova (imm_op, 0x0000, & op1, & op2, | |
3398 | NULL)) != 0) | |
3399 | { | |
3400 | dwarf2_emit_insn (op_length); | |
3401 | break; | |
3402 | } | |
3403 | } | |
3404 | ||
65d7bab5 NC |
3405 | bin |= (op2.reg | (op1.reg << 8) | (op1.am << 4) | (op2.am << 7)); |
3406 | ||
2213f746 NC |
3407 | /* If the PC is the destination... */ |
3408 | if (op2.am == 0 && op2.reg == 0 | |
3409 | /* ... and the opcode alters the SR. */ | |
3410 | && !(is_opcode ("bic") || is_opcode ("bis") || is_opcode ("mov") | |
3411 | || is_opcode ("bicx") || is_opcode ("bisx") || is_opcode ("movx"))) | |
3412 | { | |
3413 | if (silicon_errata_fix & SILICON_ERRATA_CPU11) | |
3414 | as_bad (_("CPU11: PC is destinstion of SR altering instruction")); | |
3415 | else if (silicon_errata_warn & SILICON_ERRATA_CPU11) | |
3416 | as_warn (_("CPU11: PC is destinstion of SR altering instruction")); | |
3417 | } | |
3418 | ||
3419 | /* If the status register is the destination... */ | |
3420 | if (op2.am == 0 && op2.reg == 2 | |
3421 | /* ... and the opcode alters the SR. */ | |
3422 | && (is_opcode ("add") || is_opcode ("addc") || is_opcode ("and") | |
3423 | || is_opcode ("dadd") || is_opcode ("sub") || is_opcode ("subc") | |
3424 | || is_opcode ("xor") | |
3425 | || is_opcode ("addx") || is_opcode ("addcx") || is_opcode ("andx") | |
3426 | || is_opcode ("daddx") || is_opcode ("subx") || is_opcode ("subcx") | |
3427 | || is_opcode ("xorx") | |
3428 | )) | |
3429 | { | |
3430 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
3431 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
3432 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
3433 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
3434 | } | |
3435 | ||
65d7bab5 NC |
3436 | if ( (is_opcode ("bic") && bin == 0xc232) |
3437 | || (is_opcode ("bis") && bin == 0xd232) | |
3438 | || (is_opcode ("mov") && op2.mode == OP_REG && op2.reg == 2)) | |
3439 | { | |
2213f746 NC |
3440 | /* Avoid false checks when a constant value is being put into the SR. */ |
3441 | if (op1.mode == OP_EXP | |
3442 | && op1.exp.X_op == O_constant | |
3443 | && (op1.exp.X_add_number & 0x8) != 0x8) | |
3444 | ; | |
3445 | else | |
3446 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
65d7bab5 NC |
3447 | } |
3448 | ||
2213f746 NC |
3449 | if (((is_opcode ("bis") && bin == 0xd032) |
3450 | || (is_opcode ("mov") && bin == 0x4032) | |
3451 | || (is_opcode ("xor") && bin == 0xe032)) | |
3452 | && op1.mode == OP_EXP | |
3453 | && op1.exp.X_op == O_constant | |
3454 | && (op1.exp.X_add_number & 0x10) == 0x10) | |
3455 | check_for_nop |= NOP_CHECK_CPU19; | |
3456 | ||
13761a11 | 3457 | /* Compute the entire length of the instruction in bytes. */ |
65d7bab5 | 3458 | op_length = (extended_op ? 2 : 0) /* The extension word. */ |
13761a11 NC |
3459 | + 2 /* The opcode */ |
3460 | + (2 * op1.ol) /* The first operand. */ | |
3461 | + (2 * op2.ol); /* The second operand. */ | |
b18c562e | 3462 | |
65d7bab5 NC |
3463 | insn_length += op_length; |
3464 | frag = frag_more (op_length); | |
b18c562e | 3465 | where = frag - frag_now->fr_literal; |
38d77545 | 3466 | |
13761a11 NC |
3467 | if (extended_op) |
3468 | { | |
3469 | if (!addr_op) | |
3470 | extended |= BYTE_OPERATION; | |
3471 | ||
3472 | if ((op1.ol != 0 || op2.ol != 0) && ((extended & 0xf) != 0)) | |
3473 | { | |
3474 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3475 | extended &= ~ 0xf; | |
3476 | } | |
3477 | ||
3478 | /* If necessary, emit a reloc to update the extension word. */ | |
3479 | if (op1.mode == OP_EXP) | |
3480 | { | |
3481 | if (op1.exp.X_op == O_constant) | |
3482 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
3483 | ||
e66c3c25 | 3484 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3485 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3486 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3487 | else | |
3488 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3489 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3490 | } | |
38d77545 | 3491 | |
13761a11 NC |
3492 | if (op2.mode == OP_EXP) |
3493 | { | |
3494 | if (op2.exp.X_op == O_constant) | |
3495 | extended |= (op2.exp.X_add_number >> 16) & 0xf; | |
3496 | ||
3497 | else if (op1.mode == OP_EXP) | |
3498 | fix_new_exp (frag_now, where, 8, &(op2.exp), FALSE, | |
3499 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_ODST | |
3500 | : BFD_RELOC_MSP430X_PCR20_EXT_ODST); | |
38d77545 | 3501 | |
13761a11 NC |
3502 | else |
3503 | fix_new_exp (frag_now, where, 6, &(op2.exp), FALSE, | |
3504 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_DST | |
3505 | : BFD_RELOC_MSP430X_PCR20_EXT_DST); | |
3506 | } | |
3507 | ||
3508 | /* Emit the extension word. */ | |
3509 | bfd_putl16 (extended, frag); | |
3510 | where += 2; | |
3511 | frag += 2; | |
3512 | } | |
3513 | ||
b18c562e | 3514 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3515 | where += 2; |
3516 | frag += 2; | |
b18c562e NC |
3517 | |
3518 | if (op1.mode == OP_EXP) | |
2469cfa2 | 3519 | { |
13761a11 NC |
3520 | if (op1.exp.X_op == O_constant) |
3521 | { | |
3522 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3523 | } | |
b18c562e | 3524 | else |
13761a11 NC |
3525 | { |
3526 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3527 | ||
3528 | if (!extended_op) | |
3529 | { | |
e66c3c25 | 3530 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 3531 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3532 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3533 | else |
3534 | fix_new_exp (frag_now, where, 2, | |
3535 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3536 | } | |
3537 | } | |
3538 | ||
3539 | where += 2; | |
3540 | frag += 2; | |
2469cfa2 | 3541 | } |
b18c562e NC |
3542 | |
3543 | if (op2.mode == OP_EXP) | |
2469cfa2 | 3544 | { |
13761a11 NC |
3545 | if (op2.exp.X_op == O_constant) |
3546 | { | |
3547 | bfd_putl16 (op2.exp.X_add_number & 0xffff, frag); | |
3548 | } | |
b18c562e | 3549 | else |
13761a11 NC |
3550 | { |
3551 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3552 | ||
3553 | if (!extended_op) | |
3554 | { | |
3555 | if (op2.reg) /* Not PC relative. */ | |
3556 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 3557 | &(op2.exp), FALSE, CHECK_RELOC_MSP430 (op2)); |
13761a11 NC |
3558 | else |
3559 | fix_new_exp (frag_now, where, 2, | |
3560 | &(op2.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3561 | } | |
3562 | } | |
3563 | } | |
3564 | ||
13761a11 | 3565 | dwarf2_emit_insn (insn_length); |
2213f746 NC |
3566 | |
3567 | /* If the PC is the destination... */ | |
3568 | if (op2.am == 0 && op2.reg == 0 | |
3569 | /* ... but the opcode does not alter the destination. */ | |
3570 | && (is_opcode ("cmp") || is_opcode ("bit") || is_opcode ("cmpx"))) | |
3571 | check_for_nop |= NOP_CHECK_CPU12; | |
b18c562e NC |
3572 | break; |
3573 | ||
3574 | case 2: /* Single-operand mostly instr. */ | |
3575 | if (opcode->insn_opnumb == 0) | |
2469cfa2 | 3576 | { |
b18c562e | 3577 | /* reti instruction. */ |
13761a11 | 3578 | insn_length += 2; |
b18c562e NC |
3579 | frag = frag_more (2); |
3580 | bfd_putl16 ((bfd_vma) bin, frag); | |
13761a11 | 3581 | dwarf2_emit_insn (insn_length); |
b18c562e | 3582 | break; |
2469cfa2 | 3583 | } |
2469cfa2 | 3584 | |
b18c562e | 3585 | line = extract_operand (line, l1, sizeof (l1)); |
13761a11 NC |
3586 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, |
3587 | &imm_op, extended_op, TRUE); | |
b18c562e NC |
3588 | if (res) |
3589 | break; /* Error in operand. */ | |
2469cfa2 | 3590 | |
d1706f38 NC |
3591 | if (target_is_430xv2 () |
3592 | && op1.mode == OP_REG | |
38d77545 | 3593 | && op1.reg == 0 |
638d3803 NC |
3594 | && (is_opcode ("rrax") |
3595 | || is_opcode ("rrcx") | |
3596 | || is_opcode ("rra") | |
3597 | || is_opcode ("rrc"))) | |
3598 | { | |
3599 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 3600 | break; |
638d3803 | 3601 | } |
38d77545 | 3602 | |
2213f746 NC |
3603 | /* If the status register is the destination... */ |
3604 | if (op1.am == 0 && op1.reg == 2 | |
3605 | /* ... and the opcode alters the SR. */ | |
3606 | && (is_opcode ("rra") || is_opcode ("rrc") || is_opcode ("sxt"))) | |
3607 | { | |
3608 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
3609 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
3610 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
3611 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
3612 | } | |
3613 | ||
13761a11 NC |
3614 | insn_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2); |
3615 | frag = frag_more (insn_length); | |
b18c562e | 3616 | where = frag - frag_now->fr_literal; |
38d77545 | 3617 | |
13761a11 NC |
3618 | if (extended_op) |
3619 | { | |
638d3803 | 3620 | if (is_opcode ("swpbx") || is_opcode ("sxtx")) |
13761a11 NC |
3621 | { |
3622 | /* These two instructions use a special | |
3623 | encoding of the A/L and B/W bits. */ | |
3624 | bin &= ~ BYTE_OPERATION; | |
3625 | ||
3626 | if (byte_op) | |
3627 | { | |
3628 | as_bad (_("%s instruction does not accept a .b suffix"), | |
3629 | opcode->name); | |
65d7bab5 | 3630 | break; |
13761a11 NC |
3631 | } |
3632 | else if (! addr_op) | |
3633 | extended |= BYTE_OPERATION; | |
3634 | } | |
3635 | else if (! addr_op) | |
3636 | extended |= BYTE_OPERATION; | |
3637 | ||
c1d9289f NC |
3638 | if (is_opcode ("rrux")) |
3639 | extended |= IGNORE_CARRY_BIT; | |
3640 | ||
13761a11 NC |
3641 | if (op1.ol != 0 && ((extended & 0xf) != 0)) |
3642 | { | |
3643 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3644 | extended &= ~ 0xf; | |
3645 | } | |
3646 | ||
3647 | if (op1.mode == OP_EXP) | |
3648 | { | |
3649 | if (op1.exp.X_op == O_constant) | |
3650 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
38d77545 | 3651 | |
e66c3c25 | 3652 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3653 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3654 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3655 | else | |
3656 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3657 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3658 | } | |
38d77545 | 3659 | |
13761a11 NC |
3660 | /* Emit the extension word. */ |
3661 | bfd_putl16 (extended, frag); | |
3662 | frag += 2; | |
3663 | where += 2; | |
3664 | } | |
3665 | ||
3666 | bin |= op1.reg | (op1.am << 4); | |
b18c562e | 3667 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3668 | frag += 2; |
3669 | where += 2; | |
b18c562e NC |
3670 | |
3671 | if (op1.mode == OP_EXP) | |
2469cfa2 | 3672 | { |
13761a11 NC |
3673 | if (op1.exp.X_op == O_constant) |
3674 | { | |
3675 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3676 | } | |
b18c562e | 3677 | else |
13761a11 NC |
3678 | { |
3679 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3680 | ||
3681 | if (!extended_op) | |
3682 | { | |
e66c3c25 | 3683 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 3684 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3685 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3686 | else |
3687 | fix_new_exp (frag_now, where, 2, | |
3688 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3689 | } | |
3690 | } | |
2469cfa2 | 3691 | } |
13761a11 NC |
3692 | |
3693 | dwarf2_emit_insn (insn_length); | |
b18c562e | 3694 | break; |
2469cfa2 | 3695 | |
b18c562e NC |
3696 | case 3: /* Conditional jumps instructions. */ |
3697 | line = extract_operand (line, l1, sizeof (l1)); | |
3698 | /* l1 is a label. */ | |
3699 | if (l1[0]) | |
2469cfa2 | 3700 | { |
b18c562e NC |
3701 | char *m = l1; |
3702 | expressionS exp; | |
2469cfa2 | 3703 | |
b18c562e NC |
3704 | if (*m == '$') |
3705 | m++; | |
2469cfa2 | 3706 | |
b18c562e | 3707 | parse_exp (m, &exp); |
2469cfa2 | 3708 | |
b18c562e | 3709 | /* In order to handle something like: |
2469cfa2 | 3710 | |
b18c562e NC |
3711 | and #0x8000, r5 |
3712 | tst r5 | |
3713 | jz 4 ; skip next 4 bytes | |
3714 | inv r5 | |
3715 | inc r5 | |
3716 | nop ; will jump here if r5 positive or zero | |
2469cfa2 | 3717 | |
b18c562e | 3718 | jCOND -n ;assumes jump n bytes backward: |
2469cfa2 | 3719 | |
b18c562e NC |
3720 | mov r5,r6 |
3721 | jmp -2 | |
2469cfa2 | 3722 | |
b18c562e NC |
3723 | is equal to: |
3724 | lab: | |
3725 | mov r5,r6 | |
3726 | jmp lab | |
3727 | ||
3728 | jCOND $n ; jump from PC in either direction. */ | |
2469cfa2 | 3729 | |
b18c562e NC |
3730 | if (exp.X_op == O_constant) |
3731 | { | |
3732 | int x = exp.X_add_number; | |
2469cfa2 | 3733 | |
b18c562e NC |
3734 | if (x & 1) |
3735 | { | |
3736 | as_warn (_("Even number required. Rounded to %d"), x + 1); | |
3737 | x++; | |
3738 | } | |
2469cfa2 | 3739 | |
b18c562e NC |
3740 | if ((*l1 == '$' && x > 0) || x < 0) |
3741 | x -= 2; | |
2469cfa2 | 3742 | |
b18c562e NC |
3743 | x >>= 1; |
3744 | ||
3745 | if (x > 512 || x < -511) | |
3746 | { | |
3747 | as_bad (_("Wrong displacement %d"), x << 1); | |
3748 | break; | |
3749 | } | |
3750 | ||
13761a11 NC |
3751 | insn_length += 2; |
3752 | frag = frag_more (2); /* Instr size is 1 word. */ | |
3753 | ||
b18c562e NC |
3754 | bin |= x & 0x3ff; |
3755 | bfd_putl16 ((bfd_vma) bin, frag); | |
3756 | } | |
3757 | else if (exp.X_op == O_symbol && *l1 != '$') | |
2469cfa2 | 3758 | { |
13761a11 NC |
3759 | insn_length += 2; |
3760 | frag = frag_more (2); /* Instr size is 1 word. */ | |
b18c562e NC |
3761 | where = frag - frag_now->fr_literal; |
3762 | fix_new_exp (frag_now, where, 2, | |
3763 | &exp, TRUE, BFD_RELOC_MSP430_10_PCREL); | |
3764 | ||
3765 | bfd_putl16 ((bfd_vma) bin, frag); | |
2469cfa2 | 3766 | } |
b18c562e | 3767 | else if (*l1 == '$') |
2469cfa2 | 3768 | { |
b18c562e | 3769 | as_bad (_("instruction requires label sans '$'")); |
2469cfa2 | 3770 | } |
b18c562e | 3771 | else |
13761a11 NC |
3772 | as_bad (_ |
3773 | ("instruction requires label or value in range -511:512")); | |
3774 | dwarf2_emit_insn (insn_length); | |
2a9a06c1 | 3775 | break; |
2469cfa2 | 3776 | } |
b18c562e NC |
3777 | else |
3778 | { | |
3779 | as_bad (_("instruction requires label")); | |
3780 | break; | |
3781 | } | |
3782 | break; | |
2469cfa2 | 3783 | |
b18c562e | 3784 | case 4: /* Extended jumps. */ |
77592908 DD |
3785 | if (!msp430_enable_polys) |
3786 | { | |
20203fb9 | 3787 | as_bad (_("polymorphs are not enabled. Use -mP option to enable.")); |
77592908 DD |
3788 | break; |
3789 | } | |
3739860c | 3790 | |
b18c562e NC |
3791 | line = extract_operand (line, l1, sizeof (l1)); |
3792 | if (l1[0]) | |
2469cfa2 | 3793 | { |
b18c562e NC |
3794 | char *m = l1; |
3795 | expressionS exp; | |
2469cfa2 | 3796 | |
b18c562e NC |
3797 | /* Ignore absolute addressing. make it PC relative anyway. */ |
3798 | if (*m == '#' || *m == '$') | |
3799 | m++; | |
2469cfa2 | 3800 | |
b18c562e NC |
3801 | parse_exp (m, & exp); |
3802 | if (exp.X_op == O_symbol) | |
2469cfa2 | 3803 | { |
b18c562e NC |
3804 | /* Relaxation required. */ |
3805 | struct rcodes_s rc = msp430_rcodes[opcode->insn_opnumb]; | |
3806 | ||
638d3803 | 3807 | if (target_is_430x ()) |
13761a11 NC |
3808 | rc = msp430x_rcodes[opcode->insn_opnumb]; |
3809 | ||
3810 | /* The parameter to dwarf2_emit_insn is actually the offset to | |
3811 | the start of the insn from the fix piece of instruction that | |
3812 | was emitted. Since next fragments may have variable size we | |
3813 | tie debug info to the beginning of the instruction. */ | |
3814 | insn_length += 8; | |
3e470ab5 | 3815 | frag = frag_more (8); |
2a9a06c1 | 3816 | dwarf2_emit_insn (0); |
3e470ab5 DD |
3817 | bfd_putl16 ((bfd_vma) rc.sop, frag); |
3818 | frag = frag_variant (rs_machine_dependent, 8, 2, | |
13761a11 NC |
3819 | /* Wild guess. */ |
3820 | ENCODE_RELAX (rc.lpos, STATE_BITS10), | |
b18c562e NC |
3821 | exp.X_add_symbol, |
3822 | 0, /* Offset is zero if jump dist less than 1K. */ | |
3823 | (char *) frag); | |
3824 | break; | |
2469cfa2 NC |
3825 | } |
3826 | } | |
b18c562e NC |
3827 | |
3828 | as_bad (_("instruction requires label")); | |
3829 | break; | |
3830 | ||
3831 | case 5: /* Emulated extended branches. */ | |
77592908 DD |
3832 | if (!msp430_enable_polys) |
3833 | { | |
20203fb9 | 3834 | as_bad (_("polymorphs are not enabled. Use -mP option to enable.")); |
77592908 DD |
3835 | break; |
3836 | } | |
b18c562e NC |
3837 | line = extract_operand (line, l1, sizeof (l1)); |
3838 | if (l1[0]) | |
2469cfa2 | 3839 | { |
b18c562e NC |
3840 | char * m = l1; |
3841 | expressionS exp; | |
3842 | ||
3843 | /* Ignore absolute addressing. make it PC relative anyway. */ | |
3844 | if (*m == '#' || *m == '$') | |
3845 | m++; | |
3846 | ||
3847 | parse_exp (m, & exp); | |
3848 | if (exp.X_op == O_symbol) | |
3849 | { | |
3850 | /* Relaxation required. */ | |
3851 | struct hcodes_s hc = msp430_hcodes[opcode->insn_opnumb]; | |
3852 | ||
638d3803 | 3853 | if (target_is_430x ()) |
13761a11 NC |
3854 | hc = msp430x_hcodes[opcode->insn_opnumb]; |
3855 | ||
3856 | insn_length += 8; | |
3e470ab5 | 3857 | frag = frag_more (8); |
2a9a06c1 | 3858 | dwarf2_emit_insn (0); |
3e470ab5 DD |
3859 | bfd_putl16 ((bfd_vma) hc.op0, frag); |
3860 | bfd_putl16 ((bfd_vma) hc.op1, frag+2); | |
3861 | ||
3862 | frag = frag_variant (rs_machine_dependent, 8, 2, | |
b18c562e NC |
3863 | ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_BITS10), /* Wild guess. */ |
3864 | exp.X_add_symbol, | |
3865 | 0, /* Offset is zero if jump dist less than 1K. */ | |
3866 | (char *) frag); | |
3867 | break; | |
3868 | } | |
2469cfa2 NC |
3869 | } |
3870 | ||
b18c562e NC |
3871 | as_bad (_("instruction requires label")); |
3872 | break; | |
2469cfa2 | 3873 | |
b18c562e | 3874 | default: |
79cf5950 | 3875 | as_bad (_("Illegal instruction or not implemented opcode.")); |
b18c562e | 3876 | } |
2469cfa2 | 3877 | |
927f2d25 NC |
3878 | if (is_opcode ("nop")) |
3879 | prev_insn_is_nop = TRUE; | |
3880 | else | |
3881 | prev_insn_is_nop = FALSE; | |
3882 | ||
b18c562e NC |
3883 | input_line_pointer = line; |
3884 | return 0; | |
3885 | } | |
2469cfa2 | 3886 | |
b18c562e NC |
3887 | void |
3888 | md_assemble (char * str) | |
3889 | { | |
3890 | struct msp430_opcode_s * opcode; | |
3891 | char cmd[32]; | |
3892 | unsigned int i = 0; | |
2469cfa2 | 3893 | |
b18c562e | 3894 | str = skip_space (str); /* Skip leading spaces. */ |
64a81db0 | 3895 | str = extract_cmd (str, cmd, sizeof (cmd) - 1); |
2469cfa2 | 3896 | |
64a81db0 | 3897 | while (cmd[i]) |
b18c562e NC |
3898 | { |
3899 | char a = TOLOWER (cmd[i]); | |
3900 | cmd[i] = a; | |
3901 | i++; | |
2469cfa2 | 3902 | } |
2469cfa2 | 3903 | |
b18c562e | 3904 | if (!cmd[0]) |
2469cfa2 | 3905 | { |
b18c562e NC |
3906 | as_bad (_("can't find opcode ")); |
3907 | return; | |
3908 | } | |
2469cfa2 | 3909 | |
b18c562e | 3910 | opcode = (struct msp430_opcode_s *) hash_find (msp430_hash, cmd); |
2469cfa2 | 3911 | |
b18c562e NC |
3912 | if (opcode == NULL) |
3913 | { | |
3914 | as_bad (_("unknown opcode `%s'"), cmd); | |
3915 | return; | |
2469cfa2 | 3916 | } |
2469cfa2 | 3917 | |
b18c562e NC |
3918 | { |
3919 | char *__t = input_line_pointer; | |
2469cfa2 | 3920 | |
b18c562e NC |
3921 | msp430_operands (opcode, str); |
3922 | input_line_pointer = __t; | |
3923 | } | |
3924 | } | |
2469cfa2 NC |
3925 | |
3926 | /* GAS will call this function for each section at the end of the assembly, | |
3927 | to permit the CPU backend to adjust the alignment of a section. */ | |
3928 | ||
3929 | valueT | |
b18c562e | 3930 | md_section_align (asection * seg, valueT addr) |
2469cfa2 NC |
3931 | { |
3932 | int align = bfd_get_section_alignment (stdoutput, seg); | |
3933 | ||
8d3842cd | 3934 | return ((addr + (1 << align) - 1) & -(1 << align)); |
2469cfa2 NC |
3935 | } |
3936 | ||
3937 | /* If you define this macro, it should return the offset between the | |
3938 | address of a PC relative fixup and the position from which the PC | |
3939 | relative adjustment should be made. On many processors, the base | |
3940 | of a PC relative instruction is the next instruction, so this | |
3941 | macro would return the length of an instruction. */ | |
3942 | ||
3943 | long | |
b18c562e | 3944 | md_pcrel_from_section (fixS * fixp, segT sec) |
2469cfa2 NC |
3945 | { |
3946 | if (fixp->fx_addsy != (symbolS *) NULL | |
3947 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
3948 | || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) | |
3949 | return 0; | |
3950 | ||
3951 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
3952 | } | |
3953 | ||
77592908 DD |
3954 | /* Replaces standard TC_FORCE_RELOCATION_LOCAL. |
3955 | Now it handles the situation when relocations | |
13761a11 | 3956 | have to be passed to linker. */ |
77592908 | 3957 | int |
13761a11 | 3958 | msp430_force_relocation_local (fixS *fixp) |
77592908 | 3959 | { |
13761a11 NC |
3960 | if (fixp->fx_r_type == BFD_RELOC_MSP430_10_PCREL) |
3961 | return 1; | |
13761a11 NC |
3962 | if (fixp->fx_pcrel) |
3963 | return 1; | |
77592908 DD |
3964 | if (msp430_enable_polys |
3965 | && !msp430_enable_relax) | |
3966 | return 1; | |
13761a11 NC |
3967 | |
3968 | return (!fixp->fx_pcrel | |
3969 | || generic_force_reloc (fixp)); | |
77592908 DD |
3970 | } |
3971 | ||
3972 | ||
2469cfa2 NC |
3973 | /* GAS will call this for each fixup. It should store the correct |
3974 | value in the object file. */ | |
2469cfa2 | 3975 | void |
55cf6793 | 3976 | md_apply_fix (fixS * fixp, valueT * valuep, segT seg) |
2469cfa2 | 3977 | { |
b18c562e | 3978 | unsigned char * where; |
2469cfa2 NC |
3979 | unsigned long insn; |
3980 | long value; | |
3981 | ||
3982 | if (fixp->fx_addsy == (symbolS *) NULL) | |
3983 | { | |
3984 | value = *valuep; | |
3985 | fixp->fx_done = 1; | |
3986 | } | |
3987 | else if (fixp->fx_pcrel) | |
3988 | { | |
3989 | segT s = S_GET_SEGMENT (fixp->fx_addsy); | |
3990 | ||
3991 | if (fixp->fx_addsy && (s == seg || s == absolute_section)) | |
3992 | { | |
18af0b39 NC |
3993 | /* FIXME: We can appear here only in case if we perform a pc |
3994 | relative jump to the label which is i) global, ii) locally | |
3995 | defined or this is a jump to an absolute symbol. | |
3996 | If this is an absolute symbol -- everything is OK. | |
3997 | If this is a global label, we've got a symbol value defined | |
3998 | twice: | |
3999 | 1. S_GET_VALUE (fixp->fx_addsy) will contain a symbol offset | |
4000 | from this section start | |
4001 | 2. *valuep will contain the real offset from jump insn to the | |
4002 | label | |
4003 | So, the result of S_GET_VALUE (fixp->fx_addsy) + (* valuep); | |
4004 | will be incorrect. Therefore remove s_get_value. */ | |
4005 | value = /* S_GET_VALUE (fixp->fx_addsy) + */ * valuep; | |
2469cfa2 NC |
4006 | fixp->fx_done = 1; |
4007 | } | |
4008 | else | |
4009 | value = *valuep; | |
4010 | } | |
4011 | else | |
4012 | { | |
4013 | value = fixp->fx_offset; | |
4014 | ||
4015 | if (fixp->fx_subsy != (symbolS *) NULL) | |
4016 | { | |
4017 | if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) | |
4018 | { | |
4019 | value -= S_GET_VALUE (fixp->fx_subsy); | |
4020 | fixp->fx_done = 1; | |
4021 | } | |
2469cfa2 NC |
4022 | } |
4023 | } | |
4024 | ||
77592908 DD |
4025 | fixp->fx_no_overflow = 1; |
4026 | ||
38d77545 | 4027 | /* If polymorphs are enabled and relax disabled. |
13761a11 | 4028 | do not kill any relocs and pass them to linker. */ |
38d77545 | 4029 | if (msp430_enable_polys |
77592908 | 4030 | && !msp430_enable_relax) |
2469cfa2 | 4031 | { |
e66c3c25 NC |
4032 | if (!fixp->fx_addsy |
4033 | || S_GET_SEGMENT (fixp->fx_addsy) == absolute_section) | |
79cf5950 | 4034 | fixp->fx_done = 1; /* It is ok to kill 'abs' reloc. */ |
77592908 DD |
4035 | else |
4036 | fixp->fx_done = 0; | |
2469cfa2 NC |
4037 | } |
4038 | ||
4039 | if (fixp->fx_done) | |
4040 | { | |
4041 | /* Fetch the instruction, insert the fully resolved operand | |
8cd5b113 | 4042 | value, and stuff the instruction back again. */ |
2132e3a3 | 4043 | where = (unsigned char *) fixp->fx_frag->fr_literal + fixp->fx_where; |
2469cfa2 NC |
4044 | |
4045 | insn = bfd_getl16 (where); | |
4046 | ||
4047 | switch (fixp->fx_r_type) | |
4048 | { | |
4049 | case BFD_RELOC_MSP430_10_PCREL: | |
4050 | if (value & 1) | |
4051 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4052 | _("odd address operand: %ld"), value); | |
4053 | ||
4054 | /* Jumps are in words. */ | |
4055 | value >>= 1; | |
4056 | --value; /* Correct PC. */ | |
4057 | ||
4058 | if (value < -512 || value > 511) | |
4059 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4060 | _("operand out of range: %ld"), value); | |
4061 | ||
4062 | value &= 0x3ff; /* get rid of extended sign */ | |
4063 | bfd_putl16 ((bfd_vma) (value | insn), where); | |
4064 | break; | |
4065 | ||
13761a11 | 4066 | case BFD_RELOC_MSP430X_PCR16: |
b18c562e | 4067 | case BFD_RELOC_MSP430_RL_PCREL: |
2469cfa2 NC |
4068 | case BFD_RELOC_MSP430_16_PCREL: |
4069 | if (value & 1) | |
4070 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4071 | _("odd address operand: %ld"), value); | |
13761a11 | 4072 | /* Fall through. */ |
2469cfa2 NC |
4073 | |
4074 | case BFD_RELOC_MSP430_16_PCREL_BYTE: | |
4075 | /* Nothing to be corrected here. */ | |
4076 | if (value < -32768 || value > 65536) | |
4077 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4078 | _("operand out of range: %ld"), value); | |
13761a11 | 4079 | /* Fall through. */ |
2469cfa2 | 4080 | |
13761a11 NC |
4081 | case BFD_RELOC_MSP430X_ABS16: |
4082 | case BFD_RELOC_MSP430_16: | |
4083 | case BFD_RELOC_16: | |
4084 | case BFD_RELOC_MSP430_16_BYTE: | |
2469cfa2 NC |
4085 | value &= 0xffff; /* Get rid of extended sign. */ |
4086 | bfd_putl16 ((bfd_vma) value, where); | |
4087 | break; | |
4088 | ||
00b32ff2 NC |
4089 | case BFD_RELOC_MSP430_ABS_HI16: |
4090 | value >>= 16; | |
4091 | value &= 0xffff; /* Get rid of extended sign. */ | |
4092 | bfd_putl16 ((bfd_vma) value, where); | |
4093 | break; | |
3739860c | 4094 | |
2469cfa2 NC |
4095 | case BFD_RELOC_32: |
4096 | bfd_putl16 ((bfd_vma) value, where); | |
4097 | break; | |
4098 | ||
13761a11 NC |
4099 | case BFD_RELOC_MSP430_ABS8: |
4100 | case BFD_RELOC_8: | |
4101 | bfd_put_8 (NULL, (bfd_vma) value, where); | |
4102 | break; | |
4103 | ||
4104 | case BFD_RELOC_MSP430X_ABS20_EXT_SRC: | |
4105 | case BFD_RELOC_MSP430X_PCR20_EXT_SRC: | |
4106 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 4); | |
38d77545 | 4107 | value >>= 16; |
13761a11 NC |
4108 | bfd_putl16 ((bfd_vma) (((value & 0xf) << 7) | insn), where); |
4109 | break; | |
4110 | ||
4111 | case BFD_RELOC_MSP430X_ABS20_ADR_SRC: | |
4112 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
38d77545 | 4113 | value >>= 16; |
13761a11 NC |
4114 | bfd_putl16 ((bfd_vma) (((value & 0xf) << 8) | insn), where); |
4115 | break; | |
4116 | ||
4117 | case BFD_RELOC_MSP430X_ABS20_EXT_ODST: | |
4118 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 6); | |
4119 | value >>= 16; | |
4120 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4121 | break; | |
4122 | ||
4123 | case BFD_RELOC_MSP430X_PCR20_CALL: | |
4124 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
4125 | value >>= 16; | |
4126 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4127 | break; | |
4128 | ||
4129 | case BFD_RELOC_MSP430X_ABS20_EXT_DST: | |
4130 | case BFD_RELOC_MSP430X_PCR20_EXT_DST: | |
4131 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 4); | |
4132 | value >>= 16; | |
4133 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4134 | break; | |
4135 | ||
4136 | case BFD_RELOC_MSP430X_PCR20_EXT_ODST: | |
4137 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 6); | |
4138 | value >>= 16; | |
4139 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4140 | break; | |
4141 | ||
4142 | case BFD_RELOC_MSP430X_ABS20_ADR_DST: | |
4143 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
4144 | value >>= 16; | |
4145 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
2469cfa2 | 4146 | break; |
38d77545 | 4147 | |
2469cfa2 NC |
4148 | default: |
4149 | as_fatal (_("line %d: unknown relocation type: 0x%x"), | |
4150 | fixp->fx_line, fixp->fx_r_type); | |
4151 | break; | |
4152 | } | |
4153 | } | |
4154 | else | |
4155 | { | |
4156 | fixp->fx_addnumber = value; | |
4157 | } | |
2469cfa2 NC |
4158 | } |
4159 | ||
13761a11 NC |
4160 | static bfd_boolean |
4161 | S_IS_GAS_LOCAL (symbolS * s) | |
4162 | { | |
4163 | const char * name; | |
4164 | unsigned int len; | |
4165 | ||
4166 | if (s == NULL) | |
4167 | return FALSE; | |
4168 | name = S_GET_NAME (s); | |
4169 | len = strlen (name) - 1; | |
38d77545 | 4170 | |
13761a11 NC |
4171 | return name[len] == 1 || name[len] == 2; |
4172 | } | |
4173 | ||
7be1c489 AM |
4174 | /* GAS will call this to generate a reloc, passing the resulting reloc |
4175 | to `bfd_install_relocation'. This currently works poorly, as | |
4176 | `bfd_install_relocation' often does the wrong thing, and instances of | |
4177 | `tc_gen_reloc' have been written to work around the problems, which | |
4178 | in turns makes it difficult to fix `bfd_install_relocation'. */ | |
2469cfa2 NC |
4179 | |
4180 | /* If while processing a fixup, a reloc really needs to be created | |
4181 | then it is done here. */ | |
4182 | ||
13761a11 | 4183 | arelent ** |
b18c562e | 4184 | tc_gen_reloc (asection * seg ATTRIBUTE_UNUSED, fixS * fixp) |
2469cfa2 | 4185 | { |
13761a11 NC |
4186 | static arelent * no_relocs = NULL; |
4187 | static arelent * relocs[MAX_RELOC_EXPANSION + 1]; | |
4188 | arelent *reloc; | |
2469cfa2 | 4189 | |
325801bd | 4190 | reloc = XNEW (arelent); |
2469cfa2 NC |
4191 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
4192 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
13761a11 | 4193 | |
2469cfa2 NC |
4194 | if (reloc->howto == (reloc_howto_type *) NULL) |
4195 | { | |
4196 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4197 | _("reloc %d not supported by object file format"), | |
4198 | (int) fixp->fx_r_type); | |
13761a11 NC |
4199 | free (reloc); |
4200 | return & no_relocs; | |
4201 | } | |
4202 | ||
4203 | relocs[0] = reloc; | |
4204 | relocs[1] = NULL; | |
4205 | ||
4206 | if (fixp->fx_subsy | |
4207 | && S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) | |
4208 | { | |
4209 | fixp->fx_offset -= S_GET_VALUE (fixp->fx_subsy); | |
4210 | fixp->fx_subsy = NULL; | |
2469cfa2 NC |
4211 | } |
4212 | ||
13761a11 NC |
4213 | if (fixp->fx_addsy && fixp->fx_subsy) |
4214 | { | |
4215 | asection *asec, *ssec; | |
4216 | ||
4217 | asec = S_GET_SEGMENT (fixp->fx_addsy); | |
4218 | ssec = S_GET_SEGMENT (fixp->fx_subsy); | |
4219 | ||
4220 | /* If we have a difference between two different, non-absolute symbols | |
4221 | we must generate two relocs (one for each symbol) and allow the | |
4222 | linker to resolve them - relaxation may change the distances between | |
4223 | symbols, even local symbols defined in the same section. | |
4224 | ||
4225 | Unfortunately we cannot do this with assembler generated local labels | |
4226 | because there can be multiple incarnations of the same label, with | |
4227 | exactly the same name, in any given section and the linker will have | |
4228 | no way to identify the correct one. Instead we just have to hope | |
4229 | that no relaxtion will occur between the local label and the other | |
4230 | symbol in the expression. | |
4231 | ||
4232 | Similarly we have to compute differences between symbols in the .eh_frame | |
4233 | section as the linker is not smart enough to apply relocations there | |
4234 | before attempting to process it. */ | |
4235 | if ((ssec != absolute_section || asec != absolute_section) | |
4236 | && (fixp->fx_addsy != fixp->fx_subsy) | |
4237 | && strcmp (ssec->name, ".eh_frame") != 0 | |
4238 | && ! S_IS_GAS_LOCAL (fixp->fx_addsy) | |
4239 | && ! S_IS_GAS_LOCAL (fixp->fx_subsy)) | |
4240 | { | |
325801bd | 4241 | arelent * reloc2 = XNEW (arelent); |
2469cfa2 | 4242 | |
13761a11 NC |
4243 | relocs[0] = reloc2; |
4244 | relocs[1] = reloc; | |
2469cfa2 | 4245 | |
13761a11 NC |
4246 | reloc2->address = reloc->address; |
4247 | reloc2->howto = bfd_reloc_type_lookup (stdoutput, | |
4248 | BFD_RELOC_MSP430_SYM_DIFF); | |
4249 | reloc2->addend = - S_GET_VALUE (fixp->fx_subsy); | |
4250 | ||
4251 | if (ssec == absolute_section) | |
4252 | reloc2->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4253 | else | |
4254 | { | |
325801bd | 4255 | reloc2->sym_ptr_ptr = XNEW (asymbol *); |
13761a11 NC |
4256 | *reloc2->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy); |
4257 | } | |
4258 | ||
38d77545 | 4259 | reloc->addend = fixp->fx_offset; |
13761a11 NC |
4260 | if (asec == absolute_section) |
4261 | { | |
4262 | reloc->addend += S_GET_VALUE (fixp->fx_addsy); | |
4263 | reloc->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4264 | } | |
4265 | else | |
4266 | { | |
325801bd | 4267 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
13761a11 NC |
4268 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
4269 | } | |
4270 | ||
4271 | fixp->fx_pcrel = 0; | |
4272 | fixp->fx_done = 1; | |
4273 | return relocs; | |
4274 | } | |
4275 | else | |
4276 | { | |
4277 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
4278 | ||
4279 | reloc->addend = (S_GET_VALUE (fixp->fx_addsy) | |
4280 | - S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset); | |
4281 | ||
4282 | switch (fixp->fx_r_type) | |
4283 | { | |
4284 | case BFD_RELOC_8: | |
4285 | md_number_to_chars (fixpos, reloc->addend, 1); | |
4286 | break; | |
4287 | ||
4288 | case BFD_RELOC_16: | |
4289 | md_number_to_chars (fixpos, reloc->addend, 2); | |
4290 | break; | |
4291 | ||
4292 | case BFD_RELOC_24: | |
4293 | md_number_to_chars (fixpos, reloc->addend, 3); | |
4294 | break; | |
4295 | ||
4296 | case BFD_RELOC_32: | |
4297 | md_number_to_chars (fixpos, reloc->addend, 4); | |
4298 | break; | |
4299 | ||
4300 | default: | |
4301 | reloc->sym_ptr_ptr | |
4302 | = (asymbol **) bfd_abs_section_ptr->symbol_ptr_ptr; | |
4303 | return relocs; | |
4304 | } | |
4305 | ||
4306 | free (reloc); | |
4307 | return & no_relocs; | |
4308 | } | |
4309 | } | |
4310 | else | |
4311 | { | |
4312 | #if 0 | |
4313 | if (fixp->fx_r_type == BFD_RELOC_MSP430X_ABS16 | |
4314 | && S_GET_SEGMENT (fixp->fx_addsy) == absolute_section) | |
4315 | { | |
4316 | bfd_vma amount = S_GET_VALUE (fixp->fx_addsy); | |
4317 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
4318 | ||
4319 | md_number_to_chars (fixpos, amount, 2); | |
4320 | free (reloc); | |
4321 | return & no_relocs; | |
4322 | } | |
4323 | #endif | |
325801bd | 4324 | reloc->sym_ptr_ptr = XNEW (asymbol *); |
13761a11 NC |
4325 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
4326 | reloc->addend = fixp->fx_offset; | |
4327 | ||
4328 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4329 | || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4330 | reloc->address = fixp->fx_offset; | |
4331 | } | |
4332 | ||
4333 | return relocs; | |
2469cfa2 NC |
4334 | } |
4335 | ||
b18c562e NC |
4336 | int |
4337 | md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED, | |
4338 | asection * segment_type ATTRIBUTE_UNUSED) | |
4339 | { | |
4340 | if (fragP->fr_symbol && S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
4341 | { | |
4342 | /* This is a jump -> pcrel mode. Nothing to do much here. | |
4343 | Return value == 2. */ | |
4344 | fragP->fr_subtype = | |
4345 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_BITS10); | |
4346 | } | |
4347 | else if (fragP->fr_symbol) | |
4348 | { | |
4349 | /* Its got a segment, but its not ours. Even if fr_symbol is in | |
79cf5950 | 4350 | an absolute segment, we don't know a displacement until we link |
b18c562e NC |
4351 | object files. So it will always be long. This also applies to |
4352 | labels in a subsegment of current. Liker may relax it to short | |
4353 | jump later. Return value == 8. */ | |
4354 | fragP->fr_subtype = | |
4355 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_WORD); | |
4356 | } | |
4357 | else | |
4358 | { | |
4359 | /* We know the abs value. may be it is a jump to fixed address. | |
79cf5950 | 4360 | Impossible in our case, cause all constants already handled. */ |
b18c562e NC |
4361 | fragP->fr_subtype = |
4362 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_UNDEF); | |
4363 | } | |
2469cfa2 | 4364 | |
b18c562e NC |
4365 | return md_relax_table[fragP->fr_subtype].rlx_length; |
4366 | } | |
4367 | ||
4368 | void | |
4369 | md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, | |
4370 | asection * sec ATTRIBUTE_UNUSED, | |
4371 | fragS * fragP) | |
2469cfa2 | 4372 | { |
b18c562e NC |
4373 | char * where = 0; |
4374 | int rela = -1; | |
4375 | int i; | |
4376 | struct rcodes_s * cc = NULL; | |
4377 | struct hcodes_s * hc = NULL; | |
4378 | ||
4379 | switch (fragP->fr_subtype) | |
4380 | { | |
4381 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_BITS10): | |
4382 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_BITS10): | |
4383 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_BITS10): | |
4384 | /* We do not have to convert anything here. | |
4385 | Just apply a fix. */ | |
4386 | rela = BFD_RELOC_MSP430_10_PCREL; | |
4387 | break; | |
4388 | ||
4389 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_WORD): | |
4390 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_UNDEF): | |
4391 | /* Convert uncond branch jmp lab -> br lab. */ | |
638d3803 | 4392 | if (target_is_430x ()) |
13761a11 | 4393 | cc = msp430x_rcodes + 7; |
638d3803 NC |
4394 | else |
4395 | cc = msp430_rcodes + 7; | |
b18c562e NC |
4396 | where = fragP->fr_literal + fragP->fr_fix; |
4397 | bfd_putl16 (cc->lop0, where); | |
4398 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4399 | fragP->fr_fix += 2; | |
4400 | break; | |
4401 | ||
4402 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_WORD): | |
4403 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_UNDEF): | |
4404 | { | |
4405 | /* Other simple branches. */ | |
4406 | int insn = bfd_getl16 (fragP->fr_opcode); | |
4407 | ||
4408 | insn &= 0xffff; | |
4409 | /* Find actual instruction. */ | |
638d3803 | 4410 | if (target_is_430x ()) |
13761a11 NC |
4411 | { |
4412 | for (i = 0; i < 7 && !cc; i++) | |
4413 | if (msp430x_rcodes[i].sop == insn) | |
4414 | cc = msp430x_rcodes + i; | |
4415 | } | |
4416 | else | |
4417 | { | |
4418 | for (i = 0; i < 7 && !cc; i++) | |
4419 | if (msp430_rcodes[i].sop == insn) | |
4420 | cc = & msp430_rcodes[i]; | |
4421 | } | |
4422 | ||
b18c562e NC |
4423 | if (!cc || !cc->name) |
4424 | as_fatal (_("internal inconsistency problem in %s: insn %04lx"), | |
4425 | __FUNCTION__, (long) insn); | |
4426 | where = fragP->fr_literal + fragP->fr_fix; | |
4427 | bfd_putl16 (cc->lop0, where); | |
4428 | bfd_putl16 (cc->lop1, where + 2); | |
4429 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4430 | fragP->fr_fix += 4; | |
4431 | } | |
4432 | break; | |
4433 | ||
4434 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_WORD): | |
4435 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_UNDEF): | |
638d3803 | 4436 | if (target_is_430x ()) |
13761a11 | 4437 | cc = msp430x_rcodes + 6; |
638d3803 NC |
4438 | else |
4439 | cc = msp430_rcodes + 6; | |
b18c562e NC |
4440 | where = fragP->fr_literal + fragP->fr_fix; |
4441 | bfd_putl16 (cc->lop0, where); | |
4442 | bfd_putl16 (cc->lop1, where + 2); | |
4443 | bfd_putl16 (cc->lop2, where + 4); | |
4444 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4445 | fragP->fr_fix += 6; | |
4446 | break; | |
4447 | ||
4448 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_BITS10): | |
4449 | { | |
4450 | int insn = bfd_getl16 (fragP->fr_opcode + 2); | |
4451 | ||
4452 | insn &= 0xffff; | |
638d3803 | 4453 | if (target_is_430x ()) |
13761a11 NC |
4454 | { |
4455 | for (i = 0; i < 4 && !hc; i++) | |
4456 | if (msp430x_hcodes[i].op1 == insn) | |
4457 | hc = msp430x_hcodes + i; | |
4458 | } | |
4459 | else | |
4460 | { | |
4461 | for (i = 0; i < 4 && !hc; i++) | |
4462 | if (msp430_hcodes[i].op1 == insn) | |
4463 | hc = &msp430_hcodes[i]; | |
4464 | } | |
b18c562e NC |
4465 | if (!hc || !hc->name) |
4466 | as_fatal (_("internal inconsistency problem in %s: ext. insn %04lx"), | |
4467 | __FUNCTION__, (long) insn); | |
4468 | rela = BFD_RELOC_MSP430_10_PCREL; | |
4469 | /* Apply a fix for a first label if necessary. | |
4470 | another fix will be applied to the next word of insn anyway. */ | |
4471 | if (hc->tlab == 2) | |
4472 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, | |
13761a11 | 4473 | fragP->fr_offset, TRUE, rela); |
b18c562e NC |
4474 | fragP->fr_fix += 2; |
4475 | } | |
4476 | ||
4477 | break; | |
4478 | ||
4479 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_WORD): | |
4480 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_UNDEF): | |
4481 | { | |
4482 | int insn = bfd_getl16 (fragP->fr_opcode + 2); | |
4483 | ||
4484 | insn &= 0xffff; | |
638d3803 | 4485 | if (target_is_430x ()) |
13761a11 NC |
4486 | { |
4487 | for (i = 0; i < 4 && !hc; i++) | |
4488 | if (msp430x_hcodes[i].op1 == insn) | |
4489 | hc = msp430x_hcodes + i; | |
4490 | } | |
4491 | else | |
4492 | { | |
4493 | for (i = 0; i < 4 && !hc; i++) | |
4494 | if (msp430_hcodes[i].op1 == insn) | |
4495 | hc = & msp430_hcodes[i]; | |
4496 | } | |
b18c562e NC |
4497 | if (!hc || !hc->name) |
4498 | as_fatal (_("internal inconsistency problem in %s: ext. insn %04lx"), | |
4499 | __FUNCTION__, (long) insn); | |
4500 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4501 | where = fragP->fr_literal + fragP->fr_fix; | |
4502 | bfd_putl16 (hc->lop0, where); | |
4503 | bfd_putl16 (hc->lop1, where + 2); | |
4504 | bfd_putl16 (hc->lop2, where + 4); | |
4505 | fragP->fr_fix += 6; | |
4506 | } | |
4507 | break; | |
4508 | ||
4509 | default: | |
4510 | as_fatal (_("internal inconsistency problem in %s: %lx"), | |
4511 | __FUNCTION__, (long) fragP->fr_subtype); | |
4512 | break; | |
4513 | } | |
4514 | ||
4515 | /* Now apply fix. */ | |
4516 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, | |
4517 | fragP->fr_offset, TRUE, rela); | |
4518 | /* Just fixed 2 bytes. */ | |
4519 | fragP->fr_fix += 2; | |
2469cfa2 NC |
4520 | } |
4521 | ||
b18c562e NC |
4522 | /* Relax fragment. Mostly stolen from hc11 and mcore |
4523 | which arches I think I know. */ | |
2469cfa2 | 4524 | |
b18c562e NC |
4525 | long |
4526 | msp430_relax_frag (segT seg ATTRIBUTE_UNUSED, fragS * fragP, | |
4527 | long stretch ATTRIBUTE_UNUSED) | |
2469cfa2 | 4528 | { |
b18c562e NC |
4529 | long growth; |
4530 | offsetT aim = 0; | |
4531 | symbolS *symbolP; | |
4532 | const relax_typeS *this_type; | |
4533 | const relax_typeS *start_type; | |
4534 | relax_substateT next_state; | |
4535 | relax_substateT this_state; | |
4536 | const relax_typeS *table = md_relax_table; | |
4537 | ||
4538 | /* Nothing to be done if the frag has already max size. */ | |
4539 | if (RELAX_STATE (fragP->fr_subtype) == STATE_UNDEF | |
4540 | || RELAX_STATE (fragP->fr_subtype) == STATE_WORD) | |
4541 | return 0; | |
4542 | ||
4543 | if (RELAX_STATE (fragP->fr_subtype) == STATE_BITS10) | |
4544 | { | |
4545 | symbolP = fragP->fr_symbol; | |
4546 | if (symbol_resolved_p (symbolP)) | |
4547 | as_fatal (_("internal inconsistency problem in %s: resolved symbol"), | |
4548 | __FUNCTION__); | |
4549 | /* We know the offset. calculate a distance. */ | |
4550 | aim = S_GET_VALUE (symbolP) - fragP->fr_address - fragP->fr_fix; | |
4551 | } | |
4552 | ||
77592908 DD |
4553 | if (!msp430_enable_relax) |
4554 | { | |
4555 | /* Relaxation is not enabled. So, make all jump as long ones | |
13761a11 | 4556 | by setting 'aim' to quite high value. */ |
77592908 DD |
4557 | aim = 0x7fff; |
4558 | } | |
38d77545 | 4559 | |
b18c562e NC |
4560 | this_state = fragP->fr_subtype; |
4561 | start_type = this_type = table + this_state; | |
4562 | ||
4563 | if (aim < 0) | |
4564 | { | |
4565 | /* Look backwards. */ | |
4566 | for (next_state = this_type->rlx_more; next_state;) | |
3e470ab5 | 4567 | if (aim >= this_type->rlx_backward || !this_type->rlx_backward) |
b18c562e NC |
4568 | next_state = 0; |
4569 | else | |
4570 | { | |
4571 | /* Grow to next state. */ | |
4572 | this_state = next_state; | |
4573 | this_type = table + this_state; | |
4574 | next_state = this_type->rlx_more; | |
4575 | } | |
4576 | } | |
4577 | else | |
4578 | { | |
4579 | /* Look forwards. */ | |
4580 | for (next_state = this_type->rlx_more; next_state;) | |
3e470ab5 | 4581 | if (aim <= this_type->rlx_forward || !this_type->rlx_forward) |
b18c562e NC |
4582 | next_state = 0; |
4583 | else | |
4584 | { | |
4585 | /* Grow to next state. */ | |
4586 | this_state = next_state; | |
4587 | this_type = table + this_state; | |
4588 | next_state = this_type->rlx_more; | |
4589 | } | |
4590 | } | |
4591 | ||
4592 | growth = this_type->rlx_length - start_type->rlx_length; | |
4593 | if (growth != 0) | |
4594 | fragP->fr_subtype = this_state; | |
4595 | return growth; | |
2469cfa2 | 4596 | } |
13761a11 NC |
4597 | |
4598 | /* Return FALSE if the fixup in fixp should be left alone and not | |
4599 | adjusted. We return FALSE here so that linker relaxation will | |
4600 | work. */ | |
4601 | ||
4602 | bfd_boolean | |
4603 | msp430_fix_adjustable (struct fix *fixp ATTRIBUTE_UNUSED) | |
4604 | { | |
4605 | /* If the symbol is in a non-code section then it should be OK. */ | |
4606 | if (fixp->fx_addsy | |
4607 | && ((S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_CODE) == 0)) | |
4608 | return TRUE; | |
38d77545 | 4609 | |
13761a11 NC |
4610 | return FALSE; |
4611 | } | |
4612 | ||
4613 | /* Set the contents of the .MSP430.attributes section. */ | |
4614 | ||
4615 | void | |
4616 | msp430_md_end (void) | |
4617 | { | |
2213f746 NC |
4618 | if (check_for_nop) |
4619 | as_warn ("assembly finished without a possibly needed NOP instruction"); | |
65d7bab5 | 4620 | |
13761a11 | 4621 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_ISA, |
638d3803 | 4622 | target_is_430x () ? 2 : 1); |
13761a11 NC |
4623 | |
4624 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_Code_Model, | |
4625 | large_model ? 2 : 1); | |
4626 | ||
4627 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_Data_Model, | |
4628 | large_model ? 2 : 1); | |
4629 | } | |
4630 | ||
4631 | /* Returns FALSE if there is a msp430 specific reason why the | |
4632 | subtraction of two same-section symbols cannot be computed by | |
4633 | the assembler. */ | |
4634 | ||
4635 | bfd_boolean | |
4636 | msp430_allow_local_subtract (expressionS * left, | |
4637 | expressionS * right, | |
4638 | segT section) | |
4639 | { | |
4640 | /* If the symbols are not in a code section then they are OK. */ | |
4641 | if ((section->flags & SEC_CODE) == 0) | |
4642 | return TRUE; | |
4643 | ||
4644 | if (S_IS_GAS_LOCAL (left->X_add_symbol) || S_IS_GAS_LOCAL (right->X_add_symbol)) | |
4645 | return TRUE; | |
4646 | ||
4647 | if (left->X_add_symbol == right->X_add_symbol) | |
4648 | return TRUE; | |
4649 | ||
4650 | /* We have to assume that there may be instructions between the | |
4651 | two symbols and that relaxation may increase the distance between | |
4652 | them. */ | |
4653 | return FALSE; | |
4654 | } |