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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 | ||
13761a11 NC |
72 | /* Set linkrelax here to avoid fixups in most sections. */ |
73 | int linkrelax = 1; | |
74 | ||
f5c7edf4 AM |
75 | /* GCC uses the some condition codes which we'll |
76 | implement as new polymorph instructions. | |
13761a11 | 77 | |
f5c7edf4 AM |
78 | COND EXPL SHORT JUMP LONG JUMP |
79 | =============================================== | |
80 | eq == jeq jne +4; br lab | |
81 | ne != jne jeq +4; br lab | |
82 | ||
83 | ltn honours no-overflow flag | |
84 | ltn < jn jn +2; jmp +4; br lab | |
85 | ||
13761a11 | 86 | lt < jl jge +4; br lab |
f5c7edf4 AM |
87 | ltu < jlo lhs +4; br lab |
88 | le <= see below | |
89 | leu <= see below | |
90 | ||
91 | gt > see below | |
92 | gtu > see below | |
93 | ge >= jge jl +4; br lab | |
94 | geu >= jhs jlo +4; br lab | |
95 | =============================================== | |
96 | ||
97 | Therefore, new opcodes are (BranchEQ -> beq; and so on...) | |
98 | beq,bne,blt,bltn,bltu,bge,bgeu | |
13761a11 NC |
99 | 'u' means unsigned compares |
100 | ||
f5c7edf4 AM |
101 | Also, we add 'jump' instruction: |
102 | jump UNCOND -> jmp br lab | |
103 | ||
104 | They will have fmt == 4, and insn_opnumb == number of instruction. */ | |
105 | ||
13761a11 | 106 | struct rcodes_s |
f5c7edf4 | 107 | { |
e0471c16 | 108 | const char * name; |
f5c7edf4 AM |
109 | int index; /* Corresponding insn_opnumb. */ |
110 | int sop; /* Opcode if jump length is short. */ | |
111 | long lpos; /* Label position. */ | |
112 | long lop0; /* Opcode 1 _word_ (16 bits). */ | |
113 | long lop1; /* Opcode second word. */ | |
114 | long lop2; /* Opcode third word. */ | |
115 | }; | |
116 | ||
117 | #define MSP430_RLC(n,i,sop,o1) \ | |
118 | {#n, i, sop, 2, (o1 + 2), 0x4010, 0} | |
119 | ||
13761a11 | 120 | static struct rcodes_s msp430_rcodes[] = |
f5c7edf4 AM |
121 | { |
122 | MSP430_RLC (beq, 0, 0x2400, 0x2000), | |
123 | MSP430_RLC (bne, 1, 0x2000, 0x2400), | |
124 | MSP430_RLC (blt, 2, 0x3800, 0x3400), | |
125 | MSP430_RLC (bltu, 3, 0x2800, 0x2c00), | |
126 | MSP430_RLC (bge, 4, 0x3400, 0x3800), | |
127 | MSP430_RLC (bgeu, 5, 0x2c00, 0x2800), | |
128 | {"bltn", 6, 0x3000, 3, 0x3000 + 1, 0x3c00 + 2,0x4010}, | |
129 | {"jump", 7, 0x3c00, 1, 0x4010, 0, 0}, | |
130 | {0,0,0,0,0,0,0} | |
131 | }; | |
f5c7edf4 | 132 | |
13761a11 NC |
133 | #undef MSP430_RLC |
134 | #define MSP430_RLC(n,i,sop,o1) \ | |
135 | {#n, i, sop, 2, (o1 + 2), 0x0030, 0} | |
136 | ||
137 | static struct rcodes_s msp430x_rcodes[] = | |
138 | { | |
139 | MSP430_RLC (beq, 0, 0x2400, 0x2000), | |
140 | MSP430_RLC (bne, 1, 0x2000, 0x2400), | |
141 | MSP430_RLC (blt, 2, 0x3800, 0x3400), | |
142 | MSP430_RLC (bltu, 3, 0x2800, 0x2c00), | |
143 | MSP430_RLC (bge, 4, 0x3400, 0x3800), | |
144 | MSP430_RLC (bgeu, 5, 0x2c00, 0x2800), | |
145 | {"bltn", 6, 0x3000, 3, 0x0030 + 1, 0x3c00 + 2, 0x3000}, | |
146 | {"jump", 7, 0x3c00, 1, 0x0030, 0, 0}, | |
147 | {0,0,0,0,0,0,0} | |
148 | }; | |
149 | #undef MSP430_RLC | |
f5c7edf4 AM |
150 | |
151 | /* More difficult than above and they have format 5. | |
13761a11 | 152 | |
f5c7edf4 AM |
153 | COND EXPL SHORT LONG |
154 | ================================================================= | |
155 | gt > jeq +2; jge label jeq +6; jl +4; br label | |
156 | gtu > jeq +2; jhs label jeq +6; jlo +4; br label | |
157 | leu <= jeq label; jlo label jeq +2; jhs +4; br label | |
158 | le <= jeq label; jl label jeq +2; jge +4; br label | |
159 | ================================================================= */ | |
160 | ||
13761a11 | 161 | struct hcodes_s |
f5c7edf4 | 162 | { |
e0471c16 | 163 | const char * name; |
f5c7edf4 AM |
164 | int index; /* Corresponding insn_opnumb. */ |
165 | int tlab; /* Number of labels in short mode. */ | |
166 | int op0; /* Opcode for first word of short jump. */ | |
167 | int op1; /* Opcode for second word of short jump. */ | |
168 | int lop0; /* Opcodes for long jump mode. */ | |
169 | int lop1; | |
170 | int lop2; | |
171 | }; | |
172 | ||
13761a11 | 173 | static struct hcodes_s msp430_hcodes[] = |
f5c7edf4 AM |
174 | { |
175 | {"bgt", 0, 1, 0x2401, 0x3400, 0x2403, 0x3802, 0x4010 }, | |
176 | {"bgtu", 1, 1, 0x2401, 0x2c00, 0x2403, 0x2802, 0x4010 }, | |
177 | {"bleu", 2, 2, 0x2400, 0x2800, 0x2401, 0x2c02, 0x4010 }, | |
178 | {"ble", 3, 2, 0x2400, 0x3800, 0x2401, 0x3402, 0x4010 }, | |
179 | {0,0,0,0,0,0,0,0} | |
180 | }; | |
181 | ||
13761a11 NC |
182 | static struct hcodes_s msp430x_hcodes[] = |
183 | { | |
184 | {"bgt", 0, 1, 0x2401, 0x3400, 0x2403, 0x3802, 0x0030 }, | |
185 | {"bgtu", 1, 1, 0x2401, 0x2c00, 0x2403, 0x2802, 0x0030 }, | |
186 | {"bleu", 2, 2, 0x2400, 0x2800, 0x2401, 0x2c02, 0x0030 }, | |
187 | {"ble", 3, 2, 0x2400, 0x3800, 0x2401, 0x3402, 0x0030 }, | |
188 | {0,0,0,0,0,0,0,0} | |
189 | }; | |
190 | ||
2469cfa2 NC |
191 | const char comment_chars[] = ";"; |
192 | const char line_comment_chars[] = "#"; | |
870074dd | 193 | const char line_separator_chars[] = "{"; |
2469cfa2 NC |
194 | const char EXP_CHARS[] = "eE"; |
195 | const char FLT_CHARS[] = "dD"; | |
196 | ||
197 | /* Handle long expressions. */ | |
198 | extern LITTLENUM_TYPE generic_bignum[]; | |
199 | ||
200 | static struct hash_control *msp430_hash; | |
201 | ||
b18c562e NC |
202 | /* Relaxations. */ |
203 | #define STATE_UNCOND_BRANCH 1 /* jump */ | |
204 | #define STATE_NOOV_BRANCH 3 /* bltn */ | |
205 | #define STATE_SIMPLE_BRANCH 2 /* bne, beq, etc... */ | |
206 | #define STATE_EMUL_BRANCH 4 | |
207 | ||
208 | #define CNRL 2 | |
209 | #define CUBL 4 | |
210 | #define CNOL 8 | |
211 | #define CSBL 6 | |
212 | #define CEBL 4 | |
213 | ||
214 | /* Length. */ | |
215 | #define STATE_BITS10 1 /* wild guess. short jump */ | |
216 | #define STATE_WORD 2 /* 2 bytes pc rel. addr. more */ | |
217 | #define STATE_UNDEF 3 /* cannot handle this yet. convert to word mode */ | |
218 | ||
219 | #define ENCODE_RELAX(what,length) (((what) << 2) + (length)) | |
220 | #define RELAX_STATE(s) ((s) & 3) | |
221 | #define RELAX_LEN(s) ((s) >> 2) | |
222 | #define RELAX_NEXT(a,b) ENCODE_RELAX (a, b + 1) | |
223 | ||
224 | relax_typeS md_relax_table[] = | |
225 | { | |
226 | /* Unused. */ | |
227 | {1, 1, 0, 0}, | |
228 | {1, 1, 0, 0}, | |
229 | {1, 1, 0, 0}, | |
230 | {1, 1, 0, 0}, | |
231 | ||
232 | /* Unconditional jump. */ | |
233 | {1, 1, 8, 5}, | |
234 | {1024, -1024, CNRL, RELAX_NEXT (STATE_UNCOND_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
235 | {0, 0, CUBL, RELAX_NEXT (STATE_UNCOND_BRANCH, STATE_WORD)}, /* state word */ | |
236 | {1, 1, CUBL, 0}, /* state undef */ | |
237 | ||
238 | /* Simple branches. */ | |
239 | {0, 0, 8, 9}, | |
240 | {1024, -1024, CNRL, RELAX_NEXT (STATE_SIMPLE_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
241 | {0, 0, CSBL, RELAX_NEXT (STATE_SIMPLE_BRANCH, STATE_WORD)}, /* state word */ | |
242 | {1, 1, CSBL, 0}, | |
243 | ||
244 | /* blt no overflow branch. */ | |
245 | {1, 1, 8, 13}, | |
246 | {1024, -1024, CNRL, RELAX_NEXT (STATE_NOOV_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
247 | {0, 0, CNOL, RELAX_NEXT (STATE_NOOV_BRANCH, STATE_WORD)}, /* state word */ | |
248 | {1, 1, CNOL, 0}, | |
249 | ||
250 | /* Emulated branches. */ | |
251 | {1, 1, 8, 17}, | |
252 | {1020, -1020, CEBL, RELAX_NEXT (STATE_EMUL_BRANCH, STATE_BITS10)}, /* state 10 bits displ */ | |
253 | {0, 0, CNOL, RELAX_NEXT (STATE_EMUL_BRANCH, STATE_WORD)}, /* state word */ | |
254 | {1, 1, CNOL, 0} | |
255 | }; | |
256 | ||
2469cfa2 | 257 | |
837a17b3 | 258 | #define MAX_OP_LEN 4096 |
2469cfa2 | 259 | |
638d3803 NC |
260 | typedef enum msp_isa |
261 | { | |
262 | MSP_ISA_430, | |
263 | MSP_ISA_430X, | |
264 | MSP_ISA_430Xv2 | |
265 | } msp_isa; | |
266 | ||
65d7bab5 | 267 | static enum msp_isa selected_isa = MSP_ISA_430Xv2; |
638d3803 NC |
268 | |
269 | static inline bfd_boolean | |
270 | target_is_430x (void) | |
271 | { | |
65d7bab5 | 272 | return selected_isa >= MSP_ISA_430X; |
638d3803 NC |
273 | } |
274 | ||
275 | static inline bfd_boolean | |
276 | target_is_430xv2 (void) | |
277 | { | |
65d7bab5 | 278 | return selected_isa == MSP_ISA_430Xv2; |
638d3803 | 279 | } |
13761a11 | 280 | |
00b32ff2 NC |
281 | /* Generate an absolute 16-bit relocation. |
282 | For the 430X we generate a relocation without linker range checking | |
283 | if the value is being used in an extended (ie 20-bit) instruction, | |
284 | otherwise if have a shifted expression we use a HI reloc. | |
13761a11 | 285 | For the 430 we generate a relocation without assembler range checking |
00b32ff2 NC |
286 | if we are handling an immediate value or a byte-width instruction. */ |
287 | ||
13761a11 | 288 | #undef CHECK_RELOC_MSP430 |
00b32ff2 NC |
289 | #define CHECK_RELOC_MSP430(OP) \ |
290 | (target_is_430x () \ | |
291 | ? (extended_op \ | |
292 | ? BFD_RELOC_16 \ | |
293 | : ((OP).vshift == 1) \ | |
294 | ? BFD_RELOC_MSP430_ABS_HI16 \ | |
295 | : BFD_RELOC_MSP430X_ABS16) \ | |
296 | : ((imm_op || byte_op) \ | |
13761a11 NC |
297 | ? BFD_RELOC_MSP430_16_BYTE : BFD_RELOC_MSP430_16)) |
298 | ||
299 | /* Generate a 16-bit pc-relative relocation. | |
300 | For the 430X we generate a relocation without linkwer range checking. | |
301 | For the 430 we generate a relocation without assembler range checking | |
302 | if we are handling an immediate value or a byte-width instruction. */ | |
303 | #undef CHECK_RELOC_MSP430_PCREL | |
304 | #define CHECK_RELOC_MSP430_PCREL \ | |
638d3803 | 305 | (target_is_430x () \ |
13761a11 NC |
306 | ? BFD_RELOC_MSP430X_PCR16 \ |
307 | : (imm_op || byte_op) \ | |
308 | ? BFD_RELOC_MSP430_16_PCREL_BYTE : BFD_RELOC_MSP430_16_PCREL) | |
2469cfa2 | 309 | |
b18c562e NC |
310 | /* Profiling capability: |
311 | It is a performance hit to use gcc's profiling approach for this tiny target. | |
312 | Even more -- jtag hardware facility does not perform any profiling functions. | |
313 | However we've got gdb's built-in simulator where we can do anything. | |
314 | Therefore my suggestion is: | |
315 | ||
316 | We define new section ".profiler" which holds all profiling information. | |
317 | We define new pseudo operation .profiler which will instruct assembler to | |
318 | add new profile entry to the object file. Profile should take place at the | |
319 | present address. | |
320 | ||
321 | Pseudo-op format: | |
322 | ||
323 | .profiler flags,function_to_profile [, cycle_corrector, extra] | |
324 | ||
325 | where 'flags' is a combination of the following chars: | |
326 | s - function Start | |
327 | x - function eXit | |
328 | i - function is in Init section | |
329 | f - function is in Fini section | |
330 | l - Library call | |
331 | c - libC standard call | |
332 | d - stack value Demand (saved at run-time in simulator) | |
333 | I - Interrupt service routine | |
334 | P - Prologue start | |
335 | p - Prologue end | |
336 | E - Epilogue start | |
337 | e - Epilogue end | |
338 | j - long Jump/ sjlj unwind | |
339 | a - an Arbitrary code fragment | |
340 | t - exTra parameter saved (constant value like frame size) | |
341 | '""' optional: "sil" == sil | |
342 | ||
343 | function_to_profile - function's address | |
344 | cycle_corrector - a value which should be added to the cycle | |
345 | counter, zero if omitted | |
346 | extra - some extra parameter, zero if omitted. | |
347 | ||
348 | For example: | |
349 | ------------------------------ | |
350 | .global fxx | |
351 | .type fxx,@function | |
352 | fxx: | |
353 | .LFrameOffset_fxx=0x08 | |
354 | .profiler "scdP", fxx ; function entry. | |
355 | ; we also demand stack value to be displayed | |
356 | push r11 | |
357 | push r10 | |
358 | push r9 | |
359 | push r8 | |
360 | .profiler "cdp",fxx,0, .LFrameOffset_fxx ; check stack value at this point | |
361 | ; (this is a prologue end) | |
79cf5950 | 362 | ; note, that spare var filled with the frame size |
b18c562e NC |
363 | mov r15,r8 |
364 | .... | |
365 | .profiler cdE,fxx ; check stack | |
366 | pop r8 | |
367 | pop r9 | |
368 | pop r10 | |
369 | pop r11 | |
370 | .profiler xcde,fxx,3 ; exit adds 3 to the cycle counter | |
371 | ret ; cause 'ret' insn takes 3 cycles | |
372 | ------------------------------- | |
373 | ||
374 | This profiling approach does not produce any overhead and | |
375 | absolutely harmless. | |
376 | So, even profiled code can be uploaded to the MCU. */ | |
377 | #define MSP430_PROFILER_FLAG_ENTRY 1 /* s */ | |
378 | #define MSP430_PROFILER_FLAG_EXIT 2 /* x */ | |
379 | #define MSP430_PROFILER_FLAG_INITSECT 4 /* i */ | |
380 | #define MSP430_PROFILER_FLAG_FINISECT 8 /* f */ | |
381 | #define MSP430_PROFILER_FLAG_LIBCALL 0x10 /* l */ | |
382 | #define MSP430_PROFILER_FLAG_STDCALL 0x20 /* c */ | |
383 | #define MSP430_PROFILER_FLAG_STACKDMD 0x40 /* d */ | |
384 | #define MSP430_PROFILER_FLAG_ISR 0x80 /* I */ | |
385 | #define MSP430_PROFILER_FLAG_PROLSTART 0x100 /* P */ | |
386 | #define MSP430_PROFILER_FLAG_PROLEND 0x200 /* p */ | |
387 | #define MSP430_PROFILER_FLAG_EPISTART 0x400 /* E */ | |
388 | #define MSP430_PROFILER_FLAG_EPIEND 0x800 /* e */ | |
389 | #define MSP430_PROFILER_FLAG_JUMP 0x1000 /* j */ | |
390 | #define MSP430_PROFILER_FLAG_FRAGMENT 0x2000 /* a */ | |
391 | #define MSP430_PROFILER_FLAG_EXTRA 0x4000 /* t */ | |
392 | #define MSP430_PROFILER_FLAG_notyet 0x8000 /* ? */ | |
2469cfa2 | 393 | |
b18c562e NC |
394 | static int |
395 | pow2value (int y) | |
2469cfa2 | 396 | { |
b18c562e NC |
397 | int n = 0; |
398 | unsigned int x; | |
2469cfa2 | 399 | |
b18c562e | 400 | x = y; |
2469cfa2 | 401 | |
b18c562e NC |
402 | if (!x) |
403 | return 1; | |
2469cfa2 | 404 | |
b18c562e NC |
405 | for (; x; x = x >> 1) |
406 | if (x & 1) | |
407 | n++; | |
408 | ||
409 | return n == 1; | |
410 | } | |
411 | ||
412 | /* Parse ordinary expression. */ | |
413 | ||
414 | static char * | |
415 | parse_exp (char * s, expressionS * op) | |
2469cfa2 | 416 | { |
b18c562e NC |
417 | input_line_pointer = s; |
418 | expression (op); | |
419 | if (op->X_op == O_absent) | |
420 | as_bad (_("missing operand")); | |
421 | return input_line_pointer; | |
422 | } | |
2469cfa2 | 423 | |
b18c562e NC |
424 | |
425 | /* Delete spaces from s: X ( r 1 2) => X(r12). */ | |
2469cfa2 NC |
426 | |
427 | static void | |
b18c562e | 428 | del_spaces (char * s) |
2469cfa2 | 429 | { |
b18c562e NC |
430 | while (*s) |
431 | { | |
432 | if (ISSPACE (*s)) | |
433 | { | |
434 | char *m = s + 1; | |
2469cfa2 | 435 | |
b18c562e NC |
436 | while (ISSPACE (*m) && *m) |
437 | m++; | |
438 | memmove (s, m, strlen (m) + 1); | |
439 | } | |
440 | else | |
441 | s++; | |
442 | } | |
443 | } | |
2469cfa2 | 444 | |
b18c562e NC |
445 | static inline char * |
446 | skip_space (char * s) | |
447 | { | |
448 | while (ISSPACE (*s)) | |
449 | ++s; | |
450 | return s; | |
451 | } | |
2469cfa2 | 452 | |
708587a4 | 453 | /* Extract one word from FROM and copy it to TO. Delimiters are ",;\n" */ |
b18c562e NC |
454 | |
455 | static char * | |
456 | extract_operand (char * from, char * to, int limit) | |
457 | { | |
458 | int size = 0; | |
459 | ||
460 | /* Drop leading whitespace. */ | |
461 | from = skip_space (from); | |
462 | ||
463 | while (size < limit && *from) | |
464 | { | |
465 | *(to + size) = *from; | |
466 | if (*from == ',' || *from == ';' || *from == '\n') | |
467 | break; | |
468 | from++; | |
469 | size++; | |
470 | } | |
471 | ||
472 | *(to + size) = 0; | |
473 | del_spaces (to); | |
474 | ||
475 | from++; | |
476 | ||
477 | return from; | |
2469cfa2 NC |
478 | } |
479 | ||
b18c562e NC |
480 | static void |
481 | msp430_profiler (int dummy ATTRIBUTE_UNUSED) | |
2469cfa2 | 482 | { |
b18c562e NC |
483 | char buffer[1024]; |
484 | char f[32]; | |
485 | char * str = buffer; | |
486 | char * flags = f; | |
487 | int p_flags = 0; | |
488 | char * halt; | |
489 | int ops = 0; | |
490 | int left; | |
491 | char * s; | |
492 | segT seg; | |
493 | int subseg; | |
494 | char * end = 0; | |
495 | expressionS exp; | |
496 | expressionS exp1; | |
497 | ||
498 | s = input_line_pointer; | |
499 | end = input_line_pointer; | |
500 | ||
501 | while (*end && *end != '\n') | |
502 | end++; | |
503 | ||
504 | while (*s && *s != '\n') | |
505 | { | |
506 | if (*s == ',') | |
507 | ops++; | |
508 | s++; | |
509 | } | |
2469cfa2 | 510 | |
b18c562e NC |
511 | left = 3 - ops; |
512 | ||
513 | if (ops < 1) | |
514 | { | |
515 | as_bad (_(".profiler pseudo requires at least two operands.")); | |
516 | input_line_pointer = end; | |
517 | return; | |
518 | } | |
519 | ||
520 | input_line_pointer = extract_operand (input_line_pointer, flags, 32); | |
521 | ||
522 | while (*flags) | |
523 | { | |
524 | switch (*flags) | |
525 | { | |
526 | case '"': | |
527 | break; | |
528 | case 'a': | |
529 | p_flags |= MSP430_PROFILER_FLAG_FRAGMENT; | |
530 | break; | |
531 | case 'j': | |
532 | p_flags |= MSP430_PROFILER_FLAG_JUMP; | |
533 | break; | |
534 | case 'P': | |
535 | p_flags |= MSP430_PROFILER_FLAG_PROLSTART; | |
536 | break; | |
537 | case 'p': | |
538 | p_flags |= MSP430_PROFILER_FLAG_PROLEND; | |
539 | break; | |
540 | case 'E': | |
541 | p_flags |= MSP430_PROFILER_FLAG_EPISTART; | |
542 | break; | |
543 | case 'e': | |
544 | p_flags |= MSP430_PROFILER_FLAG_EPIEND; | |
545 | break; | |
546 | case 's': | |
547 | p_flags |= MSP430_PROFILER_FLAG_ENTRY; | |
548 | break; | |
549 | case 'x': | |
550 | p_flags |= MSP430_PROFILER_FLAG_EXIT; | |
551 | break; | |
552 | case 'i': | |
553 | p_flags |= MSP430_PROFILER_FLAG_INITSECT; | |
554 | break; | |
555 | case 'f': | |
556 | p_flags |= MSP430_PROFILER_FLAG_FINISECT; | |
557 | break; | |
558 | case 'l': | |
559 | p_flags |= MSP430_PROFILER_FLAG_LIBCALL; | |
560 | break; | |
561 | case 'c': | |
562 | p_flags |= MSP430_PROFILER_FLAG_STDCALL; | |
563 | break; | |
564 | case 'd': | |
565 | p_flags |= MSP430_PROFILER_FLAG_STACKDMD; | |
566 | break; | |
567 | case 'I': | |
568 | p_flags |= MSP430_PROFILER_FLAG_ISR; | |
569 | break; | |
570 | case 't': | |
571 | p_flags |= MSP430_PROFILER_FLAG_EXTRA; | |
572 | break; | |
573 | default: | |
574 | as_warn (_("unknown profiling flag - ignored.")); | |
575 | break; | |
576 | } | |
577 | flags++; | |
578 | } | |
579 | ||
580 | if (p_flags | |
581 | && ( ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_ENTRY | |
582 | | MSP430_PROFILER_FLAG_EXIT)) | |
583 | || ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_PROLSTART | |
584 | | MSP430_PROFILER_FLAG_PROLEND | |
585 | | MSP430_PROFILER_FLAG_EPISTART | |
586 | | MSP430_PROFILER_FLAG_EPIEND)) | |
587 | || ! pow2value (p_flags & ( MSP430_PROFILER_FLAG_INITSECT | |
588 | | MSP430_PROFILER_FLAG_FINISECT)))) | |
589 | { | |
79cf5950 | 590 | as_bad (_("ambiguous flags combination - '.profiler' directive ignored.")); |
b18c562e NC |
591 | input_line_pointer = end; |
592 | return; | |
593 | } | |
594 | ||
595 | /* Generate temp symbol which denotes current location. */ | |
79cf5950 | 596 | if (now_seg == absolute_section) /* Paranoia ? */ |
b18c562e NC |
597 | { |
598 | exp1.X_op = O_constant; | |
599 | exp1.X_add_number = abs_section_offset; | |
79cf5950 | 600 | as_warn (_("profiling in absolute section?")); |
b18c562e NC |
601 | } |
602 | else | |
603 | { | |
604 | exp1.X_op = O_symbol; | |
605 | exp1.X_add_symbol = symbol_temp_new_now (); | |
606 | exp1.X_add_number = 0; | |
607 | } | |
608 | ||
609 | /* Generate a symbol which holds flags value. */ | |
610 | exp.X_op = O_constant; | |
611 | exp.X_add_number = p_flags; | |
612 | ||
613 | /* Save current section. */ | |
614 | seg = now_seg; | |
615 | subseg = now_subseg; | |
616 | ||
617 | /* Now go to .profiler section. */ | |
618 | obj_elf_change_section (".profiler", SHT_PROGBITS, 0, 0, 0, 0, 0); | |
619 | ||
620 | /* Save flags. */ | |
621 | emit_expr (& exp, 2); | |
622 | ||
623 | /* Save label value. */ | |
624 | emit_expr (& exp1, 2); | |
625 | ||
626 | while (ops--) | |
627 | { | |
628 | /* Now get profiling info. */ | |
629 | halt = extract_operand (input_line_pointer, str, 1024); | |
630 | /* Process like ".word xxx" directive. */ | |
631 | parse_exp (str, & exp); | |
632 | emit_expr (& exp, 2); | |
633 | input_line_pointer = halt; | |
634 | } | |
635 | ||
636 | /* Fill the rest with zeros. */ | |
637 | exp.X_op = O_constant; | |
638 | exp.X_add_number = 0; | |
639 | while (left--) | |
640 | emit_expr (& exp, 2); | |
641 | ||
642 | /* Return to current section. */ | |
643 | subseg_set (seg, subseg); | |
2469cfa2 NC |
644 | } |
645 | ||
646 | static char * | |
b18c562e | 647 | extract_word (char * from, char * to, int limit) |
2469cfa2 | 648 | { |
2469cfa2 NC |
649 | char *op_end; |
650 | int size = 0; | |
651 | ||
652 | /* Drop leading whitespace. */ | |
653 | from = skip_space (from); | |
654 | *to = 0; | |
655 | ||
656 | /* Find the op code end. */ | |
87975d2a | 657 | for (op_end = from; *op_end != 0 && is_part_of_name (*op_end);) |
2469cfa2 NC |
658 | { |
659 | to[size++] = *op_end++; | |
660 | if (size + 1 >= limit) | |
661 | break; | |
662 | } | |
663 | ||
664 | to[size] = 0; | |
665 | return op_end; | |
666 | } | |
667 | ||
b18c562e | 668 | #define OPTION_MMCU 'm' |
77592908 DD |
669 | #define OPTION_RELAX 'Q' |
670 | #define OPTION_POLYMORPHS 'P' | |
13761a11 NC |
671 | #define OPTION_LARGE 'l' |
672 | static bfd_boolean large_model = FALSE; | |
673 | #define OPTION_NO_INTR_NOPS 'N' | |
65d7bab5 | 674 | #define OPTION_INTR_NOPS 'n' |
a75555d1 | 675 | static bfd_boolean gen_interrupt_nops = FALSE; |
69227609 NC |
676 | #define OPTION_WARN_INTR_NOPS 'y' |
677 | #define OPTION_NO_WARN_INTR_NOPS 'Y' | |
65d7bab5 | 678 | static bfd_boolean warn_interrupt_nops = TRUE; |
638d3803 | 679 | #define OPTION_MCPU 'c' |
ab905915 NC |
680 | #define OPTION_MOVE_DATA 'd' |
681 | static bfd_boolean move_data = FALSE; | |
b18c562e | 682 | |
2213f746 NC |
683 | enum |
684 | { | |
685 | OPTION_SILICON_ERRATA = OPTION_MD_BASE, | |
686 | OPTION_SILICON_ERRATA_WARN, | |
687 | } option_numbers; | |
688 | ||
689 | static unsigned int silicon_errata_fix = 0; | |
690 | static unsigned int silicon_errata_warn = 0; | |
691 | #define SILICON_ERRATA_CPU4 (1 << 0) | |
692 | #define SILICON_ERRATA_CPU8 (1 << 1) | |
693 | #define SILICON_ERRATA_CPU11 (1 << 2) | |
694 | #define SILICON_ERRATA_CPU12 (1 << 3) | |
695 | #define SILICON_ERRATA_CPU13 (1 << 4) | |
696 | #define SILICON_ERRATA_CPU19 (1 << 5) | |
2213f746 | 697 | |
2469cfa2 | 698 | static void |
638d3803 | 699 | msp430_set_arch (int option) |
2469cfa2 | 700 | { |
e1fa0163 | 701 | char str[32]; /* 32 for good measure. */ |
2469cfa2 NC |
702 | |
703 | input_line_pointer = extract_word (input_line_pointer, str, 32); | |
704 | ||
638d3803 NC |
705 | md_parse_option (option, str); |
706 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, | |
707 | target_is_430x () ? bfd_mach_msp430x : bfd_mach_msp11); | |
2469cfa2 NC |
708 | } |
709 | ||
ede77e69 NC |
710 | /* This is a copy of the same data structure found in gcc/config/msp430/msp430.c |
711 | Keep these two structures in sync. | |
712 | The data in this structure has been extracted from the devices.csv file | |
b27c40ec | 713 | released by TI, updated as of March 2016. */ |
ede77e69 NC |
714 | |
715 | struct msp430_mcu_data | |
65d7bab5 | 716 | { |
ede77e69 NC |
717 | const char * name; |
718 | unsigned int revision; /* 0=> MSP430, 1=>MSP430X, 2=> MSP430Xv2. */ | |
719 | unsigned int hwmpy; /* 0=>none, 1=>16-bit, 2=>16-bit w/sign extend, 4=>32-bit, 8=> 32-bit (5xx). */ | |
720 | } | |
721 | msp430_mcu_data [] = | |
722 | { | |
723 | { "cc430f5123",2,8 }, | |
724 | { "cc430f5125",2,8 }, | |
725 | { "cc430f5133",2,8 }, | |
726 | { "cc430f5135",2,8 }, | |
727 | { "cc430f5137",2,8 }, | |
728 | { "cc430f5143",2,8 }, | |
729 | { "cc430f5145",2,8 }, | |
730 | { "cc430f5147",2,8 }, | |
731 | { "cc430f6125",2,8 }, | |
732 | { "cc430f6126",2,8 }, | |
733 | { "cc430f6127",2,8 }, | |
734 | { "cc430f6135",2,8 }, | |
735 | { "cc430f6137",2,8 }, | |
736 | { "cc430f6143",2,8 }, | |
737 | { "cc430f6145",2,8 }, | |
738 | { "cc430f6147",2,8 }, | |
739 | { "msp430afe221",0,2 }, | |
740 | { "msp430afe222",0,2 }, | |
741 | { "msp430afe223",0,2 }, | |
742 | { "msp430afe231",0,2 }, | |
743 | { "msp430afe232",0,2 }, | |
744 | { "msp430afe233",0,2 }, | |
745 | { "msp430afe251",0,2 }, | |
746 | { "msp430afe252",0,2 }, | |
747 | { "msp430afe253",0,2 }, | |
748 | { "msp430bt5190",2,8 }, | |
749 | { "msp430c091",0,0 }, | |
750 | { "msp430c092",0,0 }, | |
751 | { "msp430c111",0,0 }, | |
752 | { "msp430c1111",0,0 }, | |
753 | { "msp430c112",0,0 }, | |
754 | { "msp430c1121",0,0 }, | |
755 | { "msp430c1331",0,0 }, | |
756 | { "msp430c1351",0,0 }, | |
757 | { "msp430c311s",0,0 }, | |
758 | { "msp430c312",0,0 }, | |
759 | { "msp430c313",0,0 }, | |
760 | { "msp430c314",0,0 }, | |
761 | { "msp430c315",0,0 }, | |
762 | { "msp430c323",0,0 }, | |
763 | { "msp430c325",0,0 }, | |
764 | { "msp430c336",0,1 }, | |
765 | { "msp430c337",0,1 }, | |
766 | { "msp430c412",0,0 }, | |
767 | { "msp430c413",0,0 }, | |
768 | { "msp430cg4616",1,1 }, | |
769 | { "msp430cg4617",1,1 }, | |
770 | { "msp430cg4618",1,1 }, | |
771 | { "msp430cg4619",1,1 }, | |
772 | { "msp430e112",0,0 }, | |
773 | { "msp430e313",0,0 }, | |
774 | { "msp430e315",0,0 }, | |
775 | { "msp430e325",0,0 }, | |
776 | { "msp430e337",0,1 }, | |
777 | { "msp430f110",0,0 }, | |
778 | { "msp430f1101",0,0 }, | |
779 | { "msp430f1101a",0,0 }, | |
780 | { "msp430f1111",0,0 }, | |
781 | { "msp430f1111a",0,0 }, | |
782 | { "msp430f112",0,0 }, | |
783 | { "msp430f1121",0,0 }, | |
784 | { "msp430f1121a",0,0 }, | |
785 | { "msp430f1122",0,0 }, | |
786 | { "msp430f1132",0,0 }, | |
787 | { "msp430f122",0,0 }, | |
788 | { "msp430f1222",0,0 }, | |
789 | { "msp430f123",0,0 }, | |
790 | { "msp430f1232",0,0 }, | |
791 | { "msp430f133",0,0 }, | |
792 | { "msp430f135",0,0 }, | |
793 | { "msp430f147",0,1 }, | |
794 | { "msp430f1471",0,1 }, | |
795 | { "msp430f148",0,1 }, | |
796 | { "msp430f1481",0,1 }, | |
797 | { "msp430f149",0,1 }, | |
798 | { "msp430f1491",0,1 }, | |
799 | { "msp430f155",0,0 }, | |
800 | { "msp430f156",0,0 }, | |
801 | { "msp430f157",0,0 }, | |
802 | { "msp430f1610",0,1 }, | |
803 | { "msp430f1611",0,1 }, | |
804 | { "msp430f1612",0,1 }, | |
805 | { "msp430f167",0,1 }, | |
806 | { "msp430f168",0,1 }, | |
807 | { "msp430f169",0,1 }, | |
808 | { "msp430f2001",0,0 }, | |
809 | { "msp430f2002",0,0 }, | |
810 | { "msp430f2003",0,0 }, | |
811 | { "msp430f2011",0,0 }, | |
812 | { "msp430f2012",0,0 }, | |
813 | { "msp430f2013",0,0 }, | |
814 | { "msp430f2101",0,0 }, | |
815 | { "msp430f2111",0,0 }, | |
816 | { "msp430f2112",0,0 }, | |
817 | { "msp430f2121",0,0 }, | |
818 | { "msp430f2122",0,0 }, | |
819 | { "msp430f2131",0,0 }, | |
820 | { "msp430f2132",0,0 }, | |
821 | { "msp430f2232",0,0 }, | |
822 | { "msp430f2234",0,0 }, | |
823 | { "msp430f2252",0,0 }, | |
824 | { "msp430f2254",0,0 }, | |
825 | { "msp430f2272",0,0 }, | |
826 | { "msp430f2274",0,0 }, | |
827 | { "msp430f233",0,2 }, | |
828 | { "msp430f2330",0,2 }, | |
829 | { "msp430f235",0,2 }, | |
830 | { "msp430f2350",0,2 }, | |
831 | { "msp430f2370",0,2 }, | |
832 | { "msp430f2410",0,2 }, | |
833 | { "msp430f2416",1,2 }, | |
834 | { "msp430f2417",1,2 }, | |
835 | { "msp430f2418",1,2 }, | |
836 | { "msp430f2419",1,2 }, | |
837 | { "msp430f247",0,2 }, | |
838 | { "msp430f2471",0,2 }, | |
839 | { "msp430f248",0,2 }, | |
840 | { "msp430f2481",0,2 }, | |
841 | { "msp430f249",0,2 }, | |
842 | { "msp430f2491",0,2 }, | |
843 | { "msp430f2616",1,2 }, | |
844 | { "msp430f2617",1,2 }, | |
845 | { "msp430f2618",1,2 }, | |
846 | { "msp430f2619",1,2 }, | |
847 | { "msp430f412",0,0 }, | |
848 | { "msp430f413",0,0 }, | |
849 | { "msp430f4132",0,0 }, | |
850 | { "msp430f415",0,0 }, | |
851 | { "msp430f4152",0,0 }, | |
852 | { "msp430f417",0,0 }, | |
853 | { "msp430f423",0,1 }, | |
854 | { "msp430f423a",0,1 }, | |
855 | { "msp430f425",0,1 }, | |
856 | { "msp430f4250",0,0 }, | |
857 | { "msp430f425a",0,1 }, | |
858 | { "msp430f4260",0,0 }, | |
859 | { "msp430f427",0,1 }, | |
860 | { "msp430f4270",0,0 }, | |
861 | { "msp430f427a",0,1 }, | |
862 | { "msp430f435",0,0 }, | |
863 | { "msp430f4351",0,0 }, | |
864 | { "msp430f436",0,0 }, | |
865 | { "msp430f4361",0,0 }, | |
866 | { "msp430f437",0,0 }, | |
867 | { "msp430f4371",0,0 }, | |
868 | { "msp430f438",0,0 }, | |
869 | { "msp430f439",0,0 }, | |
870 | { "msp430f447",0,1 }, | |
871 | { "msp430f448",0,1 }, | |
872 | { "msp430f4481",0,1 }, | |
873 | { "msp430f449",0,1 }, | |
874 | { "msp430f4491",0,1 }, | |
875 | { "msp430f4616",1,1 }, | |
876 | { "msp430f46161",1,1 }, | |
877 | { "msp430f4617",1,1 }, | |
878 | { "msp430f46171",1,1 }, | |
879 | { "msp430f4618",1,1 }, | |
880 | { "msp430f46181",1,1 }, | |
881 | { "msp430f4619",1,1 }, | |
882 | { "msp430f46191",1,1 }, | |
883 | { "msp430f47126",1,4 }, | |
884 | { "msp430f47127",1,4 }, | |
885 | { "msp430f47163",1,4 }, | |
886 | { "msp430f47166",1,4 }, | |
887 | { "msp430f47167",1,4 }, | |
888 | { "msp430f47173",1,4 }, | |
889 | { "msp430f47176",1,4 }, | |
890 | { "msp430f47177",1,4 }, | |
891 | { "msp430f47183",1,4 }, | |
892 | { "msp430f47186",1,4 }, | |
893 | { "msp430f47187",1,4 }, | |
894 | { "msp430f47193",1,4 }, | |
895 | { "msp430f47196",1,4 }, | |
896 | { "msp430f47197",1,4 }, | |
897 | { "msp430f477",0,0 }, | |
898 | { "msp430f478",0,0 }, | |
899 | { "msp430f4783",0,4 }, | |
900 | { "msp430f4784",0,4 }, | |
901 | { "msp430f479",0,0 }, | |
902 | { "msp430f4793",0,4 }, | |
903 | { "msp430f4794",0,4 }, | |
904 | { "msp430f5131",2,8 }, | |
905 | { "msp430f5132",2,8 }, | |
906 | { "msp430f5151",2,8 }, | |
907 | { "msp430f5152",2,8 }, | |
908 | { "msp430f5171",2,8 }, | |
909 | { "msp430f5172",2,8 }, | |
910 | { "msp430f5212",2,8 }, | |
911 | { "msp430f5213",2,8 }, | |
912 | { "msp430f5214",2,8 }, | |
913 | { "msp430f5217",2,8 }, | |
914 | { "msp430f5218",2,8 }, | |
915 | { "msp430f5219",2,8 }, | |
916 | { "msp430f5222",2,8 }, | |
917 | { "msp430f5223",2,8 }, | |
918 | { "msp430f5224",2,8 }, | |
919 | { "msp430f5227",2,8 }, | |
920 | { "msp430f5228",2,8 }, | |
921 | { "msp430f5229",2,8 }, | |
922 | { "msp430f5232",2,8 }, | |
923 | { "msp430f5234",2,8 }, | |
924 | { "msp430f5237",2,8 }, | |
925 | { "msp430f5239",2,8 }, | |
926 | { "msp430f5242",2,8 }, | |
927 | { "msp430f5244",2,8 }, | |
928 | { "msp430f5247",2,8 }, | |
929 | { "msp430f5249",2,8 }, | |
930 | { "msp430f5252",2,8 }, | |
931 | { "msp430f5253",2,8 }, | |
932 | { "msp430f5254",2,8 }, | |
933 | { "msp430f5255",2,8 }, | |
934 | { "msp430f5256",2,8 }, | |
935 | { "msp430f5257",2,8 }, | |
936 | { "msp430f5258",2,8 }, | |
937 | { "msp430f5259",2,8 }, | |
938 | { "msp430f5304",2,8 }, | |
939 | { "msp430f5308",2,8 }, | |
940 | { "msp430f5309",2,8 }, | |
941 | { "msp430f5310",2,8 }, | |
942 | { "msp430f5324",2,8 }, | |
943 | { "msp430f5325",2,8 }, | |
944 | { "msp430f5326",2,8 }, | |
945 | { "msp430f5327",2,8 }, | |
946 | { "msp430f5328",2,8 }, | |
947 | { "msp430f5329",2,8 }, | |
948 | { "msp430f5333",2,8 }, | |
949 | { "msp430f5335",2,8 }, | |
950 | { "msp430f5336",2,8 }, | |
951 | { "msp430f5338",2,8 }, | |
952 | { "msp430f5340",2,8 }, | |
953 | { "msp430f5341",2,8 }, | |
954 | { "msp430f5342",2,8 }, | |
955 | { "msp430f5358",2,8 }, | |
956 | { "msp430f5359",2,8 }, | |
957 | { "msp430f5418",2,8 }, | |
958 | { "msp430f5418a",2,8 }, | |
959 | { "msp430f5419",2,8 }, | |
960 | { "msp430f5419a",2,8 }, | |
961 | { "msp430f5435",2,8 }, | |
962 | { "msp430f5435a",2,8 }, | |
963 | { "msp430f5436",2,8 }, | |
964 | { "msp430f5436a",2,8 }, | |
965 | { "msp430f5437",2,8 }, | |
966 | { "msp430f5437a",2,8 }, | |
967 | { "msp430f5438",2,8 }, | |
968 | { "msp430f5438a",2,8 }, | |
969 | { "msp430f5500",2,8 }, | |
970 | { "msp430f5501",2,8 }, | |
971 | { "msp430f5502",2,8 }, | |
972 | { "msp430f5503",2,8 }, | |
973 | { "msp430f5504",2,8 }, | |
974 | { "msp430f5505",2,8 }, | |
975 | { "msp430f5506",2,8 }, | |
976 | { "msp430f5507",2,8 }, | |
977 | { "msp430f5508",2,8 }, | |
978 | { "msp430f5509",2,8 }, | |
979 | { "msp430f5510",2,8 }, | |
980 | { "msp430f5513",2,8 }, | |
981 | { "msp430f5514",2,8 }, | |
982 | { "msp430f5515",2,8 }, | |
983 | { "msp430f5517",2,8 }, | |
984 | { "msp430f5519",2,8 }, | |
985 | { "msp430f5521",2,8 }, | |
986 | { "msp430f5522",2,8 }, | |
987 | { "msp430f5524",2,8 }, | |
988 | { "msp430f5525",2,8 }, | |
989 | { "msp430f5526",2,8 }, | |
990 | { "msp430f5527",2,8 }, | |
991 | { "msp430f5528",2,8 }, | |
992 | { "msp430f5529",2,8 }, | |
993 | { "msp430f5630",2,8 }, | |
994 | { "msp430f5631",2,8 }, | |
995 | { "msp430f5632",2,8 }, | |
996 | { "msp430f5633",2,8 }, | |
997 | { "msp430f5634",2,8 }, | |
998 | { "msp430f5635",2,8 }, | |
999 | { "msp430f5636",2,8 }, | |
1000 | { "msp430f5637",2,8 }, | |
1001 | { "msp430f5638",2,8 }, | |
1002 | { "msp430f5658",2,8 }, | |
1003 | { "msp430f5659",2,8 }, | |
1004 | { "msp430f5xx_6xxgeneric",2,8 }, | |
1005 | { "msp430f6433",2,8 }, | |
1006 | { "msp430f6435",2,8 }, | |
1007 | { "msp430f6436",2,8 }, | |
1008 | { "msp430f6438",2,8 }, | |
1009 | { "msp430f6458",2,8 }, | |
1010 | { "msp430f6459",2,8 }, | |
1011 | { "msp430f6630",2,8 }, | |
1012 | { "msp430f6631",2,8 }, | |
1013 | { "msp430f6632",2,8 }, | |
1014 | { "msp430f6633",2,8 }, | |
1015 | { "msp430f6634",2,8 }, | |
1016 | { "msp430f6635",2,8 }, | |
1017 | { "msp430f6636",2,8 }, | |
1018 | { "msp430f6637",2,8 }, | |
1019 | { "msp430f6638",2,8 }, | |
1020 | { "msp430f6658",2,8 }, | |
1021 | { "msp430f6659",2,8 }, | |
1022 | { "msp430f6720",2,8 }, | |
1023 | { "msp430f6720a",2,8 }, | |
1024 | { "msp430f6721",2,8 }, | |
1025 | { "msp430f6721a",2,8 }, | |
1026 | { "msp430f6723",2,8 }, | |
1027 | { "msp430f6723a",2,8 }, | |
1028 | { "msp430f6724",2,8 }, | |
1029 | { "msp430f6724a",2,8 }, | |
1030 | { "msp430f6725",2,8 }, | |
1031 | { "msp430f6725a",2,8 }, | |
1032 | { "msp430f6726",2,8 }, | |
1033 | { "msp430f6726a",2,8 }, | |
1034 | { "msp430f6730",2,8 }, | |
1035 | { "msp430f6730a",2,8 }, | |
1036 | { "msp430f6731",2,8 }, | |
1037 | { "msp430f6731a",2,8 }, | |
1038 | { "msp430f6733",2,8 }, | |
1039 | { "msp430f6733a",2,8 }, | |
1040 | { "msp430f6734",2,8 }, | |
1041 | { "msp430f6734a",2,8 }, | |
1042 | { "msp430f6735",2,8 }, | |
1043 | { "msp430f6735a",2,8 }, | |
1044 | { "msp430f6736",2,8 }, | |
1045 | { "msp430f6736a",2,8 }, | |
1046 | { "msp430f6745",2,8 }, | |
1047 | { "msp430f67451",2,8 }, | |
1048 | { "msp430f67451a",2,8 }, | |
1049 | { "msp430f6745a",2,8 }, | |
1050 | { "msp430f6746",2,8 }, | |
1051 | { "msp430f67461",2,8 }, | |
1052 | { "msp430f67461a",2,8 }, | |
1053 | { "msp430f6746a",2,8 }, | |
1054 | { "msp430f6747",2,8 }, | |
1055 | { "msp430f67471",2,8 }, | |
1056 | { "msp430f67471a",2,8 }, | |
1057 | { "msp430f6747a",2,8 }, | |
1058 | { "msp430f6748",2,8 }, | |
1059 | { "msp430f67481",2,8 }, | |
1060 | { "msp430f67481a",2,8 }, | |
1061 | { "msp430f6748a",2,8 }, | |
1062 | { "msp430f6749",2,8 }, | |
1063 | { "msp430f67491",2,8 }, | |
1064 | { "msp430f67491a",2,8 }, | |
1065 | { "msp430f6749a",2,8 }, | |
1066 | { "msp430f67621",2,8 }, | |
1067 | { "msp430f67621a",2,8 }, | |
1068 | { "msp430f67641",2,8 }, | |
1069 | { "msp430f67641a",2,8 }, | |
1070 | { "msp430f6765",2,8 }, | |
1071 | { "msp430f67651",2,8 }, | |
1072 | { "msp430f67651a",2,8 }, | |
1073 | { "msp430f6765a",2,8 }, | |
1074 | { "msp430f6766",2,8 }, | |
1075 | { "msp430f67661",2,8 }, | |
1076 | { "msp430f67661a",2,8 }, | |
1077 | { "msp430f6766a",2,8 }, | |
1078 | { "msp430f6767",2,8 }, | |
1079 | { "msp430f67671",2,8 }, | |
1080 | { "msp430f67671a",2,8 }, | |
1081 | { "msp430f6767a",2,8 }, | |
1082 | { "msp430f6768",2,8 }, | |
1083 | { "msp430f67681",2,8 }, | |
1084 | { "msp430f67681a",2,8 }, | |
1085 | { "msp430f6768a",2,8 }, | |
1086 | { "msp430f6769",2,8 }, | |
1087 | { "msp430f67691",2,8 }, | |
1088 | { "msp430f67691a",2,8 }, | |
1089 | { "msp430f6769a",2,8 }, | |
1090 | { "msp430f6775",2,8 }, | |
1091 | { "msp430f67751",2,8 }, | |
1092 | { "msp430f67751a",2,8 }, | |
1093 | { "msp430f6775a",2,8 }, | |
1094 | { "msp430f6776",2,8 }, | |
1095 | { "msp430f67761",2,8 }, | |
1096 | { "msp430f67761a",2,8 }, | |
1097 | { "msp430f6776a",2,8 }, | |
1098 | { "msp430f6777",2,8 }, | |
1099 | { "msp430f67771",2,8 }, | |
1100 | { "msp430f67771a",2,8 }, | |
1101 | { "msp430f6777a",2,8 }, | |
1102 | { "msp430f6778",2,8 }, | |
1103 | { "msp430f67781",2,8 }, | |
1104 | { "msp430f67781a",2,8 }, | |
1105 | { "msp430f6778a",2,8 }, | |
1106 | { "msp430f6779",2,8 }, | |
1107 | { "msp430f67791",2,8 }, | |
1108 | { "msp430f67791a",2,8 }, | |
1109 | { "msp430f6779a",2,8 }, | |
1110 | { "msp430fe423",0,0 }, | |
1111 | { "msp430fe4232",0,0 }, | |
1112 | { "msp430fe423a",0,0 }, | |
1113 | { "msp430fe4242",0,0 }, | |
1114 | { "msp430fe425",0,0 }, | |
1115 | { "msp430fe4252",0,0 }, | |
1116 | { "msp430fe425a",0,0 }, | |
1117 | { "msp430fe427",0,0 }, | |
1118 | { "msp430fe4272",0,0 }, | |
1119 | { "msp430fe427a",0,0 }, | |
1120 | { "msp430fg4250",0,0 }, | |
1121 | { "msp430fg4260",0,0 }, | |
1122 | { "msp430fg4270",0,0 }, | |
1123 | { "msp430fg437",0,0 }, | |
1124 | { "msp430fg438",0,0 }, | |
1125 | { "msp430fg439",0,0 }, | |
1126 | { "msp430fg4616",1,1 }, | |
1127 | { "msp430fg4617",1,1 }, | |
1128 | { "msp430fg4618",1,1 }, | |
1129 | { "msp430fg4619",1,1 }, | |
1130 | { "msp430fg477",0,0 }, | |
1131 | { "msp430fg478",0,0 }, | |
1132 | { "msp430fg479",0,0 }, | |
1133 | { "msp430fg6425",2,8 }, | |
1134 | { "msp430fg6426",2,8 }, | |
1135 | { "msp430fg6625",2,8 }, | |
1136 | { "msp430fg6626",2,8 }, | |
1137 | { "msp430fr2032",2,0 }, | |
1138 | { "msp430fr2033",2,0 }, | |
b27c40ec NC |
1139 | { "msp430fr2310",2,0 }, |
1140 | { "msp430fr2311",2,0 }, | |
ede77e69 | 1141 | { "msp430fr2433",2,8 }, |
b27c40ec NC |
1142 | { "msp430fr2532",2,8 }, |
1143 | { "msp430fr2533",2,8 }, | |
1144 | { "msp430fr2632",2,8 }, | |
1145 | { "msp430fr2633",2,8 }, | |
ede77e69 NC |
1146 | { "msp430fr2xx_4xxgeneric",2,8 }, |
1147 | { "msp430fr4131",2,0 }, | |
1148 | { "msp430fr4132",2,0 }, | |
1149 | { "msp430fr4133",2,0 }, | |
1150 | { "msp430fr5720",2,8 }, | |
1151 | { "msp430fr5721",2,8 }, | |
1152 | { "msp430fr5722",2,8 }, | |
1153 | { "msp430fr5723",2,8 }, | |
1154 | { "msp430fr5724",2,8 }, | |
1155 | { "msp430fr5725",2,8 }, | |
1156 | { "msp430fr5726",2,8 }, | |
1157 | { "msp430fr5727",2,8 }, | |
1158 | { "msp430fr5728",2,8 }, | |
1159 | { "msp430fr5729",2,8 }, | |
1160 | { "msp430fr5730",2,8 }, | |
1161 | { "msp430fr5731",2,8 }, | |
1162 | { "msp430fr5732",2,8 }, | |
1163 | { "msp430fr5733",2,8 }, | |
1164 | { "msp430fr5734",2,8 }, | |
1165 | { "msp430fr5735",2,8 }, | |
1166 | { "msp430fr5736",2,8 }, | |
1167 | { "msp430fr5737",2,8 }, | |
1168 | { "msp430fr5738",2,8 }, | |
1169 | { "msp430fr5739",2,8 }, | |
1170 | { "msp430fr57xxgeneric",2,8 }, | |
1171 | { "msp430fr5847",2,8 }, | |
1172 | { "msp430fr58471",2,8 }, | |
1173 | { "msp430fr5848",2,8 }, | |
1174 | { "msp430fr5849",2,8 }, | |
1175 | { "msp430fr5857",2,8 }, | |
1176 | { "msp430fr5858",2,8 }, | |
1177 | { "msp430fr5859",2,8 }, | |
1178 | { "msp430fr5867",2,8 }, | |
b27c40ec NC |
1179 | { "msp430fr5862",2,8 }, |
1180 | { "msp430fr5864",2,8 }, | |
ede77e69 NC |
1181 | { "msp430fr58671",2,8 }, |
1182 | { "msp430fr5868",2,8 }, | |
1183 | { "msp430fr5869",2,8 }, | |
1184 | { "msp430fr5870",2,8 }, | |
1185 | { "msp430fr5872",2,8 }, | |
1186 | { "msp430fr58721",2,8 }, | |
1187 | { "msp430fr5887",2,8 }, | |
1188 | { "msp430fr5888",2,8 }, | |
1189 | { "msp430fr5889",2,8 }, | |
1190 | { "msp430fr58891",2,8 }, | |
b27c40ec NC |
1191 | { "msp430fr5892",2,8 }, |
1192 | { "msp430fr5894",2,8 }, | |
ede77e69 NC |
1193 | { "msp430fr5922",2,8 }, |
1194 | { "msp430fr59221",2,8 }, | |
1195 | { "msp430fr5947",2,8 }, | |
1196 | { "msp430fr59471",2,8 }, | |
1197 | { "msp430fr5948",2,8 }, | |
1198 | { "msp430fr5949",2,8 }, | |
1199 | { "msp430fr5957",2,8 }, | |
1200 | { "msp430fr5958",2,8 }, | |
1201 | { "msp430fr5959",2,8 }, | |
b27c40ec NC |
1202 | { "msp430fr5962",2,8 }, |
1203 | { "msp430fr5964",2,8 }, | |
ede77e69 NC |
1204 | { "msp430fr5967",2,8 }, |
1205 | { "msp430fr5968",2,8 }, | |
1206 | { "msp430fr5969",2,8 }, | |
1207 | { "msp430fr59691",2,8 }, | |
1208 | { "msp430fr5970",2,8 }, | |
1209 | { "msp430fr5972",2,8 }, | |
1210 | { "msp430fr59721",2,8 }, | |
1211 | { "msp430fr5986",2,8 }, | |
1212 | { "msp430fr5987",2,8 }, | |
1213 | { "msp430fr5988",2,8 }, | |
1214 | { "msp430fr5989",2,8 }, | |
1215 | { "msp430fr59891",2,8 }, | |
b27c40ec NC |
1216 | { "msp430fr5992",2,8 }, |
1217 | { "msp430fr5994",2,8 }, | |
ede77e69 NC |
1218 | { "msp430fr5xx_6xxgeneric",2,8 }, |
1219 | { "msp430fr6820",2,8 }, | |
1220 | { "msp430fr6822",2,8 }, | |
1221 | { "msp430fr68221",2,8 }, | |
1222 | { "msp430fr6870",2,8 }, | |
1223 | { "msp430fr6872",2,8 }, | |
1224 | { "msp430fr68721",2,8 }, | |
1225 | { "msp430fr6877",2,8 }, | |
1226 | { "msp430fr6879",2,8 }, | |
1227 | { "msp430fr68791",2,8 }, | |
1228 | { "msp430fr6887",2,8 }, | |
1229 | { "msp430fr6888",2,8 }, | |
1230 | { "msp430fr6889",2,8 }, | |
1231 | { "msp430fr68891",2,8 }, | |
1232 | { "msp430fr6920",2,8 }, | |
1233 | { "msp430fr6922",2,8 }, | |
1234 | { "msp430fr69221",2,8 }, | |
1235 | { "msp430fr6927",2,8 }, | |
1236 | { "msp430fr69271",2,8 }, | |
1237 | { "msp430fr6928",2,8 }, | |
1238 | { "msp430fr6970",2,8 }, | |
1239 | { "msp430fr6972",2,8 }, | |
1240 | { "msp430fr69721",2,8 }, | |
1241 | { "msp430fr6977",2,8 }, | |
1242 | { "msp430fr6979",2,8 }, | |
1243 | { "msp430fr69791",2,8 }, | |
1244 | { "msp430fr6987",2,8 }, | |
1245 | { "msp430fr6988",2,8 }, | |
1246 | { "msp430fr6989",2,8 }, | |
1247 | { "msp430fr69891",2,8 }, | |
1248 | { "msp430fw423",0,0 }, | |
1249 | { "msp430fw425",0,0 }, | |
1250 | { "msp430fw427",0,0 }, | |
1251 | { "msp430fw428",0,0 }, | |
1252 | { "msp430fw429",0,0 }, | |
1253 | { "msp430g2001",0,0 }, | |
1254 | { "msp430g2101",0,0 }, | |
1255 | { "msp430g2102",0,0 }, | |
1256 | { "msp430g2111",0,0 }, | |
1257 | { "msp430g2112",0,0 }, | |
1258 | { "msp430g2113",0,0 }, | |
1259 | { "msp430g2121",0,0 }, | |
1260 | { "msp430g2131",0,0 }, | |
1261 | { "msp430g2132",0,0 }, | |
1262 | { "msp430g2152",0,0 }, | |
1263 | { "msp430g2153",0,0 }, | |
1264 | { "msp430g2201",0,0 }, | |
1265 | { "msp430g2202",0,0 }, | |
1266 | { "msp430g2203",0,0 }, | |
1267 | { "msp430g2210",0,0 }, | |
1268 | { "msp430g2211",0,0 }, | |
1269 | { "msp430g2212",0,0 }, | |
1270 | { "msp430g2213",0,0 }, | |
1271 | { "msp430g2221",0,0 }, | |
1272 | { "msp430g2230",0,0 }, | |
1273 | { "msp430g2231",0,0 }, | |
1274 | { "msp430g2232",0,0 }, | |
1275 | { "msp430g2233",0,0 }, | |
1276 | { "msp430g2252",0,0 }, | |
1277 | { "msp430g2253",0,0 }, | |
1278 | { "msp430g2302",0,0 }, | |
1279 | { "msp430g2303",0,0 }, | |
1280 | { "msp430g2312",0,0 }, | |
1281 | { "msp430g2313",0,0 }, | |
1282 | { "msp430g2332",0,0 }, | |
1283 | { "msp430g2333",0,0 }, | |
1284 | { "msp430g2352",0,0 }, | |
1285 | { "msp430g2353",0,0 }, | |
1286 | { "msp430g2402",0,0 }, | |
1287 | { "msp430g2403",0,0 }, | |
1288 | { "msp430g2412",0,0 }, | |
1289 | { "msp430g2413",0,0 }, | |
1290 | { "msp430g2432",0,0 }, | |
1291 | { "msp430g2433",0,0 }, | |
1292 | { "msp430g2444",0,0 }, | |
1293 | { "msp430g2452",0,0 }, | |
1294 | { "msp430g2453",0,0 }, | |
1295 | { "msp430g2513",0,0 }, | |
1296 | { "msp430g2533",0,0 }, | |
1297 | { "msp430g2544",0,0 }, | |
1298 | { "msp430g2553",0,0 }, | |
1299 | { "msp430g2744",0,0 }, | |
1300 | { "msp430g2755",0,0 }, | |
1301 | { "msp430g2855",0,0 }, | |
1302 | { "msp430g2955",0,0 }, | |
1303 | { "msp430i2020",0,2 }, | |
1304 | { "msp430i2021",0,2 }, | |
1305 | { "msp430i2030",0,2 }, | |
1306 | { "msp430i2031",0,2 }, | |
1307 | { "msp430i2040",0,2 }, | |
1308 | { "msp430i2041",0,2 }, | |
1309 | { "msp430i2xxgeneric",0,2 }, | |
1310 | { "msp430l092",0,0 }, | |
1311 | { "msp430p112",0,0 }, | |
1312 | { "msp430p313",0,0 }, | |
1313 | { "msp430p315",0,0 }, | |
1314 | { "msp430p315s",0,0 }, | |
1315 | { "msp430p325",0,0 }, | |
1316 | { "msp430p337",0,1 }, | |
1317 | { "msp430sl5438a",2,8 }, | |
1318 | { "msp430tch5e",0,0 }, | |
1319 | { "msp430xgeneric",2,8 }, | |
1320 | { "rf430f5144",2,8 }, | |
1321 | { "rf430f5155",2,8 }, | |
1322 | { "rf430f5175",2,8 }, | |
1323 | { "rf430frl152h",0,0 }, | |
1324 | { "rf430frl152h_rom",0,0 }, | |
1325 | { "rf430frl153h",0,0 }, | |
1326 | { "rf430frl153h_rom",0,0 }, | |
1327 | { "rf430frl154h",0,0 }, | |
1328 | { "rf430frl154h_rom",0,0 } | |
1329 | }; | |
65d7bab5 | 1330 | |
2469cfa2 | 1331 | int |
17b9d67d | 1332 | md_parse_option (int c, const char * arg) |
2469cfa2 | 1333 | { |
2469cfa2 NC |
1334 | switch (c) |
1335 | { | |
2213f746 NC |
1336 | case OPTION_SILICON_ERRATA: |
1337 | case OPTION_SILICON_ERRATA_WARN: | |
1338 | { | |
1339 | signed int i; | |
1340 | const struct | |
1341 | { | |
e0471c16 | 1342 | const char * name; |
2213f746 NC |
1343 | unsigned int length; |
1344 | unsigned int bitfield; | |
1345 | } erratas[] = | |
1346 | { | |
1347 | { STRING_COMMA_LEN ("cpu4"), SILICON_ERRATA_CPU4 }, | |
1348 | { STRING_COMMA_LEN ("cpu8"), SILICON_ERRATA_CPU8 }, | |
1349 | { STRING_COMMA_LEN ("cpu11"), SILICON_ERRATA_CPU11 }, | |
1350 | { STRING_COMMA_LEN ("cpu12"), SILICON_ERRATA_CPU12 }, | |
1351 | { STRING_COMMA_LEN ("cpu13"), SILICON_ERRATA_CPU13 }, | |
1352 | { STRING_COMMA_LEN ("cpu19"), SILICON_ERRATA_CPU19 }, | |
2213f746 NC |
1353 | }; |
1354 | ||
1355 | do | |
1356 | { | |
1357 | for (i = ARRAY_SIZE (erratas); i--;) | |
1358 | if (strncasecmp (arg, erratas[i].name, erratas[i].length) == 0) | |
1359 | { | |
1360 | if (c == OPTION_SILICON_ERRATA) | |
1361 | silicon_errata_fix |= erratas[i].bitfield; | |
1362 | else | |
1363 | silicon_errata_warn |= erratas[i].bitfield; | |
1364 | arg += erratas[i].length; | |
1365 | break; | |
1366 | } | |
1367 | if (i < 0) | |
1368 | { | |
1369 | as_warn (_("Unrecognised CPU errata name starting here: %s"), arg); | |
1370 | break; | |
1371 | } | |
1372 | if (*arg == 0) | |
1373 | break; | |
1374 | if (*arg != ',') | |
1375 | as_warn (_("Expecting comma after CPU errata name, not: %s"), arg); | |
1376 | else | |
1377 | arg ++; | |
1378 | } | |
1379 | while (*arg != 0); | |
1380 | } | |
1381 | return 1; | |
1382 | ||
2469cfa2 | 1383 | case OPTION_MMCU: |
638d3803 NC |
1384 | if (arg == NULL) |
1385 | as_fatal (_("MCU option requires a name\n")); | |
1386 | ||
65d7bab5 NC |
1387 | if (strcasecmp ("msp430", arg) == 0) |
1388 | selected_isa = MSP_ISA_430; | |
1389 | else if (strcasecmp ("msp430xv2", arg) == 0) | |
1390 | selected_isa = MSP_ISA_430Xv2; | |
1391 | else if (strcasecmp ("msp430x", arg) == 0) | |
1392 | selected_isa = MSP_ISA_430X; | |
1393 | else | |
2469cfa2 | 1394 | { |
65d7bab5 NC |
1395 | int i; |
1396 | ||
ede77e69 NC |
1397 | for (i = ARRAY_SIZE (msp430_mcu_data); i--;) |
1398 | if (strcasecmp (msp430_mcu_data[i].name, arg) == 0) | |
65d7bab5 | 1399 | { |
ede77e69 NC |
1400 | switch (msp430_mcu_data[i].revision) |
1401 | { | |
1402 | case 0: selected_isa = MSP_ISA_430; break; | |
1403 | case 1: selected_isa = MSP_ISA_430X; break; | |
1404 | case 2: selected_isa = MSP_ISA_430Xv2; break; | |
1405 | } | |
65d7bab5 NC |
1406 | break; |
1407 | } | |
2469cfa2 | 1408 | } |
8e75a78f | 1409 | /* It is not an error if we do not match the MCU name. */ |
2469cfa2 | 1410 | return 1; |
65d7bab5 | 1411 | |
638d3803 | 1412 | case OPTION_MCPU: |
8e75a78f NC |
1413 | if (strcmp (arg, "430") == 0 |
1414 | || strcasecmp (arg, "msp430") == 0) | |
65d7bab5 | 1415 | selected_isa = MSP_ISA_430; |
8e75a78f NC |
1416 | else if (strcasecmp (arg, "430x") == 0 |
1417 | || strcasecmp (arg, "msp430x") == 0) | |
65d7bab5 | 1418 | selected_isa = MSP_ISA_430X; |
8e75a78f NC |
1419 | else if (strcasecmp (arg, "430xv2") == 0 |
1420 | || strcasecmp (arg, "msp430xv2") == 0) | |
65d7bab5 | 1421 | selected_isa = MSP_ISA_430Xv2; |
638d3803 NC |
1422 | else |
1423 | as_fatal (_("unrecognised argument to -mcpu option '%s'"), arg); | |
638d3803 | 1424 | return 1; |
38d77545 | 1425 | |
77592908 | 1426 | case OPTION_RELAX: |
13761a11 | 1427 | msp430_enable_relax = 1; |
77592908 | 1428 | return 1; |
13761a11 | 1429 | |
77592908 DD |
1430 | case OPTION_POLYMORPHS: |
1431 | msp430_enable_polys = 1; | |
1432 | return 1; | |
13761a11 NC |
1433 | |
1434 | case OPTION_LARGE: | |
1435 | large_model = TRUE; | |
1436 | return 1; | |
1437 | ||
1438 | case OPTION_NO_INTR_NOPS: | |
1439 | gen_interrupt_nops = FALSE; | |
1440 | return 1; | |
a75555d1 NC |
1441 | case OPTION_INTR_NOPS: |
1442 | gen_interrupt_nops = TRUE; | |
1443 | return 1; | |
ab905915 | 1444 | |
65d7bab5 NC |
1445 | case OPTION_WARN_INTR_NOPS: |
1446 | warn_interrupt_nops = TRUE; | |
1447 | return 1; | |
1448 | case OPTION_NO_WARN_INTR_NOPS: | |
1449 | warn_interrupt_nops = FALSE; | |
1450 | return 1; | |
1451 | ||
ab905915 NC |
1452 | case OPTION_MOVE_DATA: |
1453 | move_data = TRUE; | |
1454 | return 1; | |
2469cfa2 NC |
1455 | } |
1456 | ||
1457 | return 0; | |
1458 | } | |
1459 | ||
34b822e3 DD |
1460 | /* The intention here is to have the mere presence of these sections |
1461 | cause the object to have a reference to a well-known symbol. This | |
1462 | reference pulls in the bits of the runtime (crt0) that initialize | |
1463 | these sections. Thus, for example, the startup code to call | |
1464 | memset() to initialize .bss will only be linked in when there is a | |
1465 | non-empty .bss section. Otherwise, the call would exist but have a | |
1466 | zero length parameter, which is a waste of memory and cycles. | |
1467 | ||
1468 | The code which initializes these sections should have a global | |
1469 | label for these symbols, and should be marked with KEEP() in the | |
837a17b3 NC |
1470 | linker script. */ |
1471 | ||
ab905915 | 1472 | static void |
837a17b3 | 1473 | msp430_make_init_symbols (const char * name) |
ab905915 | 1474 | { |
ab905915 NC |
1475 | if (strncmp (name, ".bss", 4) == 0 |
1476 | || strncmp (name, ".gnu.linkonce.b.", 16) == 0) | |
1477 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1478 | ||
34b822e3 DD |
1479 | if (strncmp (name, ".data", 5) == 0 |
1480 | || strncmp (name, ".gnu.linkonce.d.", 16) == 0) | |
ab905915 NC |
1481 | (void) symbol_find_or_make ("__crt0_movedata"); |
1482 | ||
837a17b3 NC |
1483 | /* Note - data assigned to the .either.data section may end up being |
1484 | placed in the .upper.data section if the .lower.data section is | |
1485 | full. Hence the need to define the crt0 symbol. */ | |
1486 | if (strncmp (name, ".either.data", 12) == 0 | |
1487 | || strncmp (name, ".upper.data", 11) == 0) | |
1488 | (void) symbol_find_or_make ("__crt0_move_highdata"); | |
1489 | ||
1490 | /* See note about .either.data above. */ | |
1491 | if (strncmp (name, ".upper.bss", 10) == 0 | |
1492 | || strncmp (name, ".either.bss", 11) == 0) | |
1493 | (void) symbol_find_or_make ("__crt0_init_highbss"); | |
1494 | } | |
1495 | ||
1496 | static void | |
1497 | msp430_section (int arg) | |
1498 | { | |
1499 | char * saved_ilp = input_line_pointer; | |
b9bb4a93 | 1500 | const char * name = obj_elf_section_name (); |
837a17b3 NC |
1501 | |
1502 | msp430_make_init_symbols (name); | |
3739860c | 1503 | |
ab905915 NC |
1504 | input_line_pointer = saved_ilp; |
1505 | obj_elf_section (arg); | |
1506 | } | |
1507 | ||
34b822e3 DD |
1508 | void |
1509 | msp430_frob_section (asection *sec) | |
1510 | { | |
1511 | const char *name = sec->name; | |
1512 | ||
1513 | if (sec->size == 0) | |
1514 | return; | |
1515 | ||
837a17b3 | 1516 | msp430_make_init_symbols (name); |
34b822e3 DD |
1517 | } |
1518 | ||
1519 | static void | |
1520 | msp430_lcomm (int ignore ATTRIBUTE_UNUSED) | |
1521 | { | |
1522 | symbolS *symbolP = s_comm_internal (0, s_lcomm_internal); | |
1523 | ||
1524 | if (symbolP) | |
1525 | symbol_get_bfdsym (symbolP)->flags |= BSF_OBJECT; | |
1526 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1527 | } | |
1528 | ||
1529 | static void | |
1530 | msp430_comm (int needs_align) | |
1531 | { | |
1532 | s_comm_internal (needs_align, elf_common_parse); | |
1533 | (void) symbol_find_or_make ("__crt0_init_bss"); | |
1534 | } | |
1535 | ||
96b96102 DD |
1536 | static void |
1537 | msp430_refsym (int arg ATTRIBUTE_UNUSED) | |
1538 | { | |
1539 | char sym_name[1024]; | |
1540 | input_line_pointer = extract_word (input_line_pointer, sym_name, 1024); | |
1541 | ||
1542 | (void) symbol_find_or_make (sym_name); | |
1543 | } | |
1544 | ||
b18c562e | 1545 | const pseudo_typeS md_pseudo_table[] = |
2469cfa2 | 1546 | { |
638d3803 NC |
1547 | {"arch", msp430_set_arch, OPTION_MMCU}, |
1548 | {"cpu", msp430_set_arch, OPTION_MCPU}, | |
b18c562e | 1549 | {"profiler", msp430_profiler, 0}, |
ab905915 NC |
1550 | {"section", msp430_section, 0}, |
1551 | {"section.s", msp430_section, 0}, | |
1552 | {"sect", msp430_section, 0}, | |
1553 | {"sect.s", msp430_section, 0}, | |
1554 | {"pushsection", msp430_section, 1}, | |
96b96102 | 1555 | {"refsym", msp430_refsym, 0}, |
34b822e3 DD |
1556 | {"comm", msp430_comm, 0}, |
1557 | {"lcomm", msp430_lcomm, 0}, | |
b18c562e NC |
1558 | {NULL, NULL, 0} |
1559 | }; | |
2469cfa2 | 1560 | |
69227609 | 1561 | const char *md_shortopts = "mm:,mP,mQ,ml,mN,mn,my,mY"; |
2469cfa2 | 1562 | |
b18c562e | 1563 | struct option md_longopts[] = |
2469cfa2 | 1564 | { |
2213f746 NC |
1565 | {"msilicon-errata", required_argument, NULL, OPTION_SILICON_ERRATA}, |
1566 | {"msilicon-errata-warn", required_argument, NULL, OPTION_SILICON_ERRATA_WARN}, | |
b18c562e | 1567 | {"mmcu", required_argument, NULL, OPTION_MMCU}, |
638d3803 | 1568 | {"mcpu", required_argument, NULL, OPTION_MCPU}, |
77592908 DD |
1569 | {"mP", no_argument, NULL, OPTION_POLYMORPHS}, |
1570 | {"mQ", no_argument, NULL, OPTION_RELAX}, | |
13761a11 NC |
1571 | {"ml", no_argument, NULL, OPTION_LARGE}, |
1572 | {"mN", no_argument, NULL, OPTION_NO_INTR_NOPS}, | |
a75555d1 | 1573 | {"mn", no_argument, NULL, OPTION_INTR_NOPS}, |
69227609 NC |
1574 | {"mY", no_argument, NULL, OPTION_NO_WARN_INTR_NOPS}, |
1575 | {"my", no_argument, NULL, OPTION_WARN_INTR_NOPS}, | |
ab905915 | 1576 | {"md", no_argument, NULL, OPTION_MOVE_DATA}, |
b18c562e NC |
1577 | {NULL, no_argument, NULL, 0} |
1578 | }; | |
2469cfa2 | 1579 | |
b18c562e | 1580 | size_t md_longopts_size = sizeof (md_longopts); |
2469cfa2 | 1581 | |
b18c562e NC |
1582 | void |
1583 | md_show_usage (FILE * stream) | |
2469cfa2 | 1584 | { |
b18c562e NC |
1585 | fprintf (stream, |
1586 | _("MSP430 options:\n" | |
638d3803 NC |
1587 | " -mmcu=<msp430-name> - select microcontroller type\n" |
1588 | " -mcpu={430|430x|430xv2} - select microcontroller architecture\n")); | |
2213f746 NC |
1589 | fprintf (stream, |
1590 | _(" -msilicon-errata=<name>[,<name>...] - enable fixups for silicon errata\n" | |
1591 | " -msilicon-errata-warn=<name>[,<name>...] - warn when a fixup might be needed\n" | |
ff1fe6fa | 1592 | " supported errata names: cpu4, cpu8, cpu11, cpu12, cpu13, cpu19\n")); |
77592908 DD |
1593 | fprintf (stream, |
1594 | _(" -mQ - enable relaxation at assembly time. DANGEROUS!\n" | |
1595 | " -mP - enable polymorph instructions\n")); | |
13761a11 NC |
1596 | fprintf (stream, |
1597 | _(" -ml - enable large code model\n")); | |
1598 | fprintf (stream, | |
65d7bab5 | 1599 | _(" -mN - do not insert NOPs after changing interrupts (default)\n")); |
a75555d1 | 1600 | fprintf (stream, |
65d7bab5 NC |
1601 | _(" -mn - insert a NOP after changing interrupts\n")); |
1602 | fprintf (stream, | |
69227609 | 1603 | _(" -mY - do not warn about missing NOPs after changing interrupts\n")); |
65d7bab5 | 1604 | fprintf (stream, |
69227609 | 1605 | _(" -my - warn about missing NOPs after changing interrupts (default)\n")); |
ab905915 NC |
1606 | fprintf (stream, |
1607 | _(" -md - Force copying of data from ROM to RAM at startup\n")); | |
b18c562e | 1608 | } |
2469cfa2 | 1609 | |
b18c562e NC |
1610 | symbolS * |
1611 | md_undefined_symbol (char * name ATTRIBUTE_UNUSED) | |
1612 | { | |
13761a11 | 1613 | return NULL; |
2469cfa2 NC |
1614 | } |
1615 | ||
1616 | static char * | |
b18c562e | 1617 | extract_cmd (char * from, char * to, int limit) |
2469cfa2 NC |
1618 | { |
1619 | int size = 0; | |
1620 | ||
1621 | while (*from && ! ISSPACE (*from) && *from != '.' && limit > size) | |
1622 | { | |
1623 | *(to + size) = *from; | |
1624 | from++; | |
1625 | size++; | |
1626 | } | |
1627 | ||
1628 | *(to + size) = 0; | |
1629 | ||
1630 | return from; | |
1631 | } | |
1632 | ||
6d4af3c2 | 1633 | const char * |
b18c562e | 1634 | md_atof (int type, char * litP, int * sizeP) |
2469cfa2 | 1635 | { |
499ac353 | 1636 | return ieee_md_atof (type, litP, sizeP, FALSE); |
2469cfa2 NC |
1637 | } |
1638 | ||
1639 | void | |
b18c562e | 1640 | md_begin (void) |
2469cfa2 | 1641 | { |
b18c562e | 1642 | struct msp430_opcode_s * opcode; |
2469cfa2 NC |
1643 | msp430_hash = hash_new (); |
1644 | ||
1645 | for (opcode = msp430_opcodes; opcode->name; opcode++) | |
1646 | hash_insert (msp430_hash, opcode->name, (char *) opcode); | |
1647 | ||
638d3803 NC |
1648 | bfd_set_arch_mach (stdoutput, TARGET_ARCH, |
1649 | target_is_430x () ? bfd_mach_msp430x : bfd_mach_msp11); | |
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; | |
2474 | bfd_boolean fix_emitted; | |
2469cfa2 | 2475 | |
b18c562e NC |
2476 | /* Opcode is the one from opcodes table |
2477 | line contains something like | |
2478 | [.w] @r2+, 5(R1) | |
2479 | or | |
2480 | .b @r2+, 5(R1). */ | |
2469cfa2 | 2481 | |
00b32ff2 | 2482 | byte_op = FALSE; |
38d77545 NC |
2483 | addr_op = FALSE; |
2484 | if (*line == '.') | |
2469cfa2 | 2485 | { |
38d77545 NC |
2486 | bfd_boolean check = FALSE; |
2487 | ++ line; | |
2488 | ||
2489 | switch (TOLOWER (* line)) | |
2490 | { | |
2491 | case 'b': | |
2492 | /* Byte operation. */ | |
2493 | bin |= BYTE_OPERATION; | |
00b32ff2 | 2494 | byte_op = TRUE; |
38d77545 NC |
2495 | check = TRUE; |
2496 | break; | |
2497 | ||
2498 | case 'a': | |
2499 | /* "Address" ops work on 20-bit values. */ | |
2500 | addr_op = TRUE; | |
2501 | bin |= BYTE_OPERATION; | |
2502 | check = TRUE; | |
2503 | break; | |
2504 | ||
2505 | case 'w': | |
2506 | /* Word operation - this is the default. */ | |
2507 | check = TRUE; | |
2508 | break; | |
2509 | ||
2510 | case 0: | |
2511 | case ' ': | |
2512 | case '\n': | |
2513 | case '\r': | |
2514 | as_warn (_("no size modifier after period, .w assumed")); | |
2515 | break; | |
2516 | ||
2517 | default: | |
2518 | as_bad (_("unrecognised instruction size modifier .%c"), | |
2519 | * line); | |
2520 | return 0; | |
2521 | } | |
2522 | ||
2523 | if (check) | |
2524 | { | |
2525 | ++ line; | |
2526 | ||
2527 | } | |
2469cfa2 NC |
2528 | } |
2529 | ||
38d77545 | 2530 | if (*line && ! ISSPACE (*line)) |
13761a11 | 2531 | { |
38d77545 NC |
2532 | as_bad (_("junk found after instruction: %s.%s"), |
2533 | opcode->name, line); | |
2534 | return 0; | |
13761a11 | 2535 | } |
13761a11 | 2536 | |
38d77545 NC |
2537 | /* Catch the case where the programmer has used a ".a" size modifier on an |
2538 | instruction that does not support it. Look for an alternative extended | |
2539 | instruction that has the same name without the period. Eg: "add.a" | |
2540 | becomes "adda". Although this not an officially supported way of | |
2541 | specifing instruction aliases other MSP430 assemblers allow it. So we | |
2542 | support it for compatibility purposes. */ | |
2543 | if (addr_op && opcode->fmt >= 0) | |
2544 | { | |
f86f5863 | 2545 | const char * old_name = opcode->name; |
38d77545 NC |
2546 | char real_name[32]; |
2547 | ||
2548 | sprintf (real_name, "%sa", old_name); | |
2549 | opcode = hash_find (msp430_hash, real_name); | |
2550 | if (opcode == NULL) | |
2551 | { | |
2552 | as_bad (_("instruction %s.a does not exist"), old_name); | |
2553 | return 0; | |
2554 | } | |
2555 | #if 0 /* Enable for debugging. */ | |
2556 | as_warn ("treating %s.a as %s", old_name, real_name); | |
2557 | #endif | |
2558 | addr_op = FALSE; | |
2559 | bin = opcode->bin_opcode; | |
2560 | } | |
2469cfa2 | 2561 | |
13761a11 NC |
2562 | if (opcode->fmt != -1 |
2563 | && opcode->insn_opnumb | |
2564 | && (!*line || *line == '\n')) | |
2469cfa2 | 2565 | { |
b18c562e NC |
2566 | as_bad (_("instruction %s requires %d operand(s)"), |
2567 | opcode->name, opcode->insn_opnumb); | |
2568 | return 0; | |
2569 | } | |
2469cfa2 | 2570 | |
b18c562e NC |
2571 | memset (l1, 0, sizeof (l1)); |
2572 | memset (l2, 0, sizeof (l2)); | |
2573 | memset (&op1, 0, sizeof (op1)); | |
2574 | memset (&op2, 0, sizeof (op2)); | |
2469cfa2 | 2575 | |
00b32ff2 | 2576 | imm_op = FALSE; |
2469cfa2 | 2577 | |
13761a11 NC |
2578 | if ((fmt = opcode->fmt) < 0) |
2579 | { | |
638d3803 | 2580 | if (! target_is_430x ()) |
13761a11 NC |
2581 | { |
2582 | as_bad (_("instruction %s requires MSP430X mcu"), | |
2583 | opcode->name); | |
2584 | return 0; | |
2585 | } | |
3739860c | 2586 | |
13761a11 NC |
2587 | fmt = (-fmt) - 1; |
2588 | extended_op = TRUE; | |
2589 | } | |
2590 | ||
2591 | if (repeat_count) | |
2592 | { | |
2593 | /* If requested set the extended instruction repeat count. */ | |
2594 | if (extended_op) | |
2595 | { | |
2596 | if (repeat_count > 0) | |
2597 | extended |= (repeat_count - 1); | |
2598 | else | |
2599 | extended |= (1 << 7) | (- repeat_count); | |
2600 | } | |
2601 | else | |
2602 | as_bad (_("unable to repeat %s insn"), opcode->name); | |
2603 | ||
2604 | repeat_count = 0; | |
2605 | } | |
2606 | ||
2213f746 | 2607 | if (check_for_nop) |
b18c562e | 2608 | { |
2213f746 | 2609 | if (! is_opcode ("nop")) |
2469cfa2 | 2610 | { |
2213f746 NC |
2611 | bfd_boolean doit = FALSE; |
2612 | ||
2613 | do | |
65d7bab5 | 2614 | { |
2213f746 | 2615 | switch (check_for_nop & - check_for_nop) |
65d7bab5 | 2616 | { |
2213f746 | 2617 | case NOP_CHECK_INTERRUPT: |
ff1fe6fa | 2618 | if (warn_interrupt_nops) |
65d7bab5 NC |
2619 | { |
2620 | if (gen_interrupt_nops) | |
2621 | as_warn (_("NOP inserted between two instructions that change interrupt state")); | |
2622 | else | |
2623 | as_warn (_("a NOP might be needed here because of successive changes in interrupt state")); | |
2624 | } | |
2625 | ||
ff1fe6fa | 2626 | if (gen_interrupt_nops) |
2213f746 NC |
2627 | /* Emit a NOP between interrupt enable/disable. |
2628 | See 1.3.4.1 of the MSP430x5xx User Guide. */ | |
2629 | doit = TRUE; | |
2630 | break; | |
2631 | ||
2632 | case NOP_CHECK_CPU12: | |
2633 | if (silicon_errata_warn & SILICON_ERRATA_CPU12) | |
2634 | as_warn (_("CPU12: CMP/BIT with PC destinstion ignores next instruction")); | |
2635 | ||
2636 | if (silicon_errata_fix & SILICON_ERRATA_CPU12) | |
2637 | doit = TRUE; | |
2638 | break; | |
2639 | ||
2640 | case NOP_CHECK_CPU19: | |
2641 | if (silicon_errata_warn & SILICON_ERRATA_CPU19) | |
2642 | as_warn (_("CPU19: Instruction setting CPUOFF must be followed by a NOP")); | |
65d7bab5 | 2643 | |
2213f746 NC |
2644 | if (silicon_errata_fix & SILICON_ERRATA_CPU19) |
2645 | doit = TRUE; | |
2646 | break; | |
2647 | ||
2648 | default: | |
2649 | as_bad (_("internal error: unknown nop check state")); | |
2650 | break; | |
2651 | } | |
2652 | check_for_nop &= ~ (check_for_nop & - check_for_nop); | |
2653 | } | |
2654 | while (check_for_nop); | |
2655 | ||
2656 | if (doit) | |
2657 | { | |
2658 | frag = frag_more (2); | |
2659 | bfd_putl16 ((bfd_vma) 0x4303 /* NOP */, frag); | |
2660 | dwarf2_emit_insn (2); | |
65d7bab5 | 2661 | } |
2213f746 NC |
2662 | } |
2663 | ||
2664 | check_for_nop = 0; | |
2665 | } | |
2666 | ||
2667 | switch (fmt) | |
2668 | { | |
2669 | case 0: /* Emulated. */ | |
2670 | switch (opcode->insn_opnumb) | |
2671 | { | |
2672 | case 0: | |
2673 | if (is_opcode ("eint") || is_opcode ("dint")) | |
2674 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
65d7bab5 | 2675 | |
b18c562e | 2676 | /* Set/clear bits instructions. */ |
13761a11 NC |
2677 | if (extended_op) |
2678 | { | |
2679 | if (!addr_op) | |
2680 | extended |= BYTE_OPERATION; | |
2681 | ||
2682 | /* Emit the extension word. */ | |
2683 | insn_length += 2; | |
65d7bab5 | 2684 | frag = frag_more (2); |
13761a11 NC |
2685 | bfd_putl16 (extended, frag); |
2686 | } | |
638d3803 | 2687 | |
13761a11 | 2688 | insn_length += 2; |
65d7bab5 | 2689 | frag = frag_more (2); |
b18c562e | 2690 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 | 2691 | dwarf2_emit_insn (insn_length); |
b18c562e | 2692 | break; |
13761a11 | 2693 | |
b18c562e NC |
2694 | case 1: |
2695 | /* Something which works with destination operand. */ | |
2696 | line = extract_operand (line, l1, sizeof (l1)); | |
13761a11 | 2697 | res = msp430_dstoperand (&op1, l1, opcode->bin_opcode, extended_op, TRUE); |
b18c562e NC |
2698 | if (res) |
2699 | break; | |
2469cfa2 | 2700 | |
65d7bab5 NC |
2701 | bin |= (op1.reg | (op1.am << 7)); |
2702 | ||
2213f746 NC |
2703 | /* If the PC is the destination... */ |
2704 | if (op1.am == 0 && op1.reg == 0 | |
2705 | /* ... and the opcode alters the SR. */ | |
2706 | && !(is_opcode ("bic") || is_opcode ("bis") || is_opcode ("mov") | |
2707 | || is_opcode ("bicx") || is_opcode ("bisx") || is_opcode ("movx"))) | |
65d7bab5 | 2708 | { |
2213f746 NC |
2709 | if (silicon_errata_fix & SILICON_ERRATA_CPU11) |
2710 | as_bad (_("CPU11: PC is destinstion of SR altering instruction")); | |
2711 | else if (silicon_errata_warn & SILICON_ERRATA_CPU11) | |
2712 | as_warn (_("CPU11: PC is destinstion of SR altering instruction")); | |
65d7bab5 | 2713 | } |
2213f746 NC |
2714 | |
2715 | /* If the status register is the destination... */ | |
2716 | if (op1.am == 0 && op1.reg == 2 | |
2717 | /* ... and the opcode alters the SR. */ | |
2718 | && (is_opcode ("adc") || is_opcode ("dec") || is_opcode ("decd") | |
2719 | || is_opcode ("inc") || is_opcode ("incd") || is_opcode ("inv") | |
2720 | || is_opcode ("sbc") || is_opcode ("sxt") | |
2721 | || is_opcode ("adcx") || is_opcode ("decx") || is_opcode ("decdx") | |
2722 | || is_opcode ("incx") || is_opcode ("incdx") || is_opcode ("invx") | |
2723 | || is_opcode ("sbcx") | |
2724 | )) | |
2725 | { | |
2726 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
2727 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
2728 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
2729 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
2730 | } | |
2731 | ||
2732 | if (is_opcode ("clr") && bin == 0x4302 /* CLR R2*/) | |
2733 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
65d7bab5 | 2734 | |
13761a11 | 2735 | /* Compute the entire instruction length, in bytes. */ |
65d7bab5 NC |
2736 | op_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2); |
2737 | insn_length += op_length; | |
2738 | frag = frag_more (op_length); | |
b18c562e | 2739 | where = frag - frag_now->fr_literal; |
38d77545 | 2740 | |
13761a11 | 2741 | if (extended_op) |
2469cfa2 | 2742 | { |
13761a11 NC |
2743 | if (!addr_op) |
2744 | extended |= BYTE_OPERATION; | |
2745 | ||
2746 | if (op1.ol != 0 && ((extended & 0xf) != 0)) | |
2747 | { | |
2748 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
2749 | extended &= ~ 0xf; | |
2750 | } | |
38d77545 | 2751 | |
13761a11 NC |
2752 | if (op1.mode == OP_EXP) |
2753 | { | |
2754 | if (op1.exp.X_op == O_constant) | |
2755 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
2756 | ||
e66c3c25 | 2757 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
2758 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
2759 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
2760 | else | |
2761 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
2762 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
2763 | } | |
38d77545 | 2764 | |
13761a11 NC |
2765 | /* Emit the extension word. */ |
2766 | bfd_putl16 (extended, frag); | |
2767 | frag += 2; | |
2768 | where += 2; | |
2769 | } | |
2770 | ||
13761a11 NC |
2771 | bfd_putl16 ((bfd_vma) bin, frag); |
2772 | frag += 2; | |
2773 | where += 2; | |
2774 | ||
2775 | if (op1.mode == OP_EXP) | |
2776 | { | |
2777 | if (op1.exp.X_op == O_constant) | |
2778 | { | |
2779 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
2780 | } | |
2469cfa2 | 2781 | else |
13761a11 NC |
2782 | { |
2783 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
2784 | ||
2785 | if (!extended_op) | |
2786 | { | |
2787 | if (op1.reg) | |
2788 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 2789 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
2790 | else |
2791 | fix_new_exp (frag_now, where, 2, | |
2792 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2793 | } | |
2794 | } | |
2795 | } | |
2796 | ||
13761a11 | 2797 | dwarf2_emit_insn (insn_length); |
b18c562e | 2798 | break; |
2469cfa2 | 2799 | |
b18c562e | 2800 | case 2: |
13761a11 NC |
2801 | /* Shift instruction. */ |
2802 | line = extract_operand (line, l1, sizeof (l1)); | |
2803 | strncpy (l2, l1, sizeof (l2)); | |
2804 | l2[sizeof (l2) - 1] = '\0'; | |
2805 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, TRUE); | |
2806 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, extended_op, TRUE); | |
2807 | ||
2808 | if (res) | |
2809 | break; /* An error occurred. All warnings were done before. */ | |
2810 | ||
2811 | insn_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2) + (op2.ol * 2); | |
2812 | frag = frag_more (insn_length); | |
2813 | where = frag - frag_now->fr_literal; | |
2814 | ||
d1706f38 NC |
2815 | if (target_is_430xv2 () |
2816 | && op1.mode == OP_REG | |
38d77545 | 2817 | && op1.reg == 0 |
638d3803 NC |
2818 | && (is_opcode ("rlax") |
2819 | || is_opcode ("rlcx") | |
2820 | || is_opcode ("rla") | |
2821 | || is_opcode ("rlc"))) | |
2822 | { | |
2823 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 2824 | break; |
638d3803 | 2825 | } |
38d77545 | 2826 | |
2213f746 NC |
2827 | /* If the status register is the destination... */ |
2828 | if (op1.am == 0 && op1.reg == 2 | |
2829 | /* ... and the opcode alters the SR. */ | |
2830 | && (is_opcode ("rla") || is_opcode ("rlc") | |
2831 | || is_opcode ("rlax") || is_opcode ("rlcx") | |
2832 | )) | |
2833 | { | |
2834 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
2835 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
2836 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
2837 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
2838 | } | |
2839 | ||
13761a11 NC |
2840 | if (extended_op) |
2841 | { | |
2842 | if (!addr_op) | |
2843 | extended |= BYTE_OPERATION; | |
2844 | ||
2845 | if ((op1.ol != 0 || op2.ol != 0) && ((extended & 0xf) != 0)) | |
2846 | { | |
2847 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
2848 | extended &= ~ 0xf; | |
2849 | } | |
38d77545 | 2850 | |
13761a11 NC |
2851 | if (op1.mode == OP_EXP) |
2852 | { | |
2853 | if (op1.exp.X_op == O_constant) | |
2854 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
2855 | ||
e66c3c25 | 2856 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
2857 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
2858 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
2859 | else | |
2860 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
2861 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
2862 | } | |
2863 | ||
2864 | if (op2.mode == OP_EXP) | |
2865 | { | |
2866 | if (op2.exp.X_op == O_constant) | |
2867 | extended |= (op2.exp.X_add_number >> 16) & 0xf; | |
2868 | ||
2869 | else if (op1.mode == OP_EXP) | |
2870 | fix_new_exp (frag_now, where, 8, &(op2.exp), FALSE, | |
2871 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_ODST | |
2872 | : BFD_RELOC_MSP430X_PCR20_EXT_ODST); | |
2873 | else | |
2874 | fix_new_exp (frag_now, where, 6, &(op2.exp), FALSE, | |
2875 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_DST | |
2876 | : BFD_RELOC_MSP430X_PCR20_EXT_DST); | |
2877 | } | |
2878 | ||
2879 | /* Emit the extension word. */ | |
2880 | bfd_putl16 (extended, frag); | |
2881 | frag += 2; | |
2882 | where += 2; | |
2883 | } | |
2884 | ||
2885 | bin |= (op2.reg | (op1.reg << 8) | (op1.am << 4) | (op2.am << 7)); | |
2886 | bfd_putl16 ((bfd_vma) bin, frag); | |
2887 | frag += 2; | |
2888 | where += 2; | |
2889 | ||
2890 | if (op1.mode == OP_EXP) | |
2891 | { | |
2892 | if (op1.exp.X_op == O_constant) | |
2893 | { | |
2894 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
2895 | } | |
2896 | else | |
2897 | { | |
2898 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
2899 | ||
2900 | if (!extended_op) | |
2901 | { | |
e66c3c25 | 2902 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 2903 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 2904 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
2905 | else |
2906 | fix_new_exp (frag_now, where, 2, | |
2907 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2908 | } | |
2909 | } | |
2910 | frag += 2; | |
2911 | where += 2; | |
2912 | } | |
2913 | ||
2914 | if (op2.mode == OP_EXP) | |
2915 | { | |
2916 | if (op2.exp.X_op == O_constant) | |
2917 | { | |
2918 | bfd_putl16 (op2.exp.X_add_number & 0xffff, frag); | |
2919 | } | |
2920 | else | |
2921 | { | |
2922 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
2923 | ||
2924 | if (!extended_op) | |
2925 | { | |
2926 | if (op2.reg) /* Not PC relative. */ | |
2927 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 2928 | &(op2.exp), FALSE, CHECK_RELOC_MSP430 (op2)); |
13761a11 NC |
2929 | else |
2930 | fix_new_exp (frag_now, where, 2, | |
2931 | &(op2.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2932 | } | |
2933 | } | |
2934 | } | |
2935 | ||
2936 | dwarf2_emit_insn (insn_length); | |
2937 | break; | |
2938 | ||
2939 | case 3: | |
2940 | /* Branch instruction => mov dst, r0. */ | |
2941 | if (extended_op) | |
2942 | { | |
2943 | as_bad ("Internal error: state 0/3 not coded for extended instructions"); | |
65d7bab5 | 2944 | break; |
13761a11 NC |
2945 | } |
2946 | ||
2947 | line = extract_operand (line, l1, sizeof (l1)); | |
2948 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, FALSE); | |
2949 | if (res) | |
2950 | break; | |
2951 | ||
00b32ff2 NC |
2952 | byte_op = FALSE; |
2953 | imm_op = FALSE; | |
13761a11 NC |
2954 | bin |= ((op1.reg << 8) | (op1.am << 4)); |
2955 | op_length = 2 + 2 * op1.ol; | |
2956 | frag = frag_more (op_length); | |
2957 | where = frag - frag_now->fr_literal; | |
2958 | bfd_putl16 ((bfd_vma) bin, frag); | |
2959 | ||
2960 | if (op1.mode == OP_EXP) | |
2961 | { | |
2962 | if (op1.exp.X_op == O_constant) | |
2963 | { | |
2964 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag + 2); | |
2965 | } | |
2966 | else | |
2967 | { | |
2968 | where += 2; | |
38d77545 | 2969 | |
13761a11 NC |
2970 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); |
2971 | ||
e66c3c25 | 2972 | if (op1.reg || op1.am == 3) |
13761a11 | 2973 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 2974 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
2975 | else |
2976 | fix_new_exp (frag_now, where, 2, | |
2977 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
2978 | } | |
2979 | } | |
2980 | ||
2981 | dwarf2_emit_insn (insn_length + op_length); | |
2982 | break; | |
2983 | ||
2984 | case 4: | |
2985 | /* CALLA instructions. */ | |
2986 | fix_emitted = FALSE; | |
2987 | ||
2988 | line = extract_operand (line, l1, sizeof (l1)); | |
00b32ff2 | 2989 | imm_op = FALSE; |
13761a11 NC |
2990 | |
2991 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, | |
2992 | extended_op, FALSE); | |
2993 | if (res) | |
2994 | break; | |
2995 | ||
00b32ff2 | 2996 | byte_op = FALSE; |
13761a11 NC |
2997 | |
2998 | op_length = 2 + 2 * op1.ol; | |
2999 | frag = frag_more (op_length); | |
3000 | where = frag - frag_now->fr_literal; | |
3001 | ||
3002 | if (imm_op) | |
3003 | { | |
3004 | if (op1.am == 3) | |
3005 | { | |
3006 | bin |= 0xb0; | |
3007 | ||
3008 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3009 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
3010 | fix_emitted = TRUE; | |
3011 | } | |
3012 | else if (op1.am == 1) | |
3013 | { | |
3014 | if (op1.reg == 0) | |
3015 | { | |
3016 | bin |= 0x90; | |
3017 | ||
3018 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3019 | BFD_RELOC_MSP430X_PCR20_CALL); | |
3020 | fix_emitted = TRUE; | |
3021 | } | |
3022 | else | |
3023 | bin |= 0x50 | op1.reg; | |
3024 | } | |
3025 | else if (op1.am == 0) | |
3026 | bin |= 0x40 | op1.reg; | |
3027 | } | |
3028 | else if (op1.am == 1) | |
3029 | { | |
3030 | bin |= 0x80; | |
3031 | ||
3032 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3033 | BFD_RELOC_MSP430X_ABS20_ADR_DST); | |
3034 | fix_emitted = TRUE; | |
3035 | } | |
3036 | else if (op1.am == 2) | |
3037 | bin |= 0x60 | op1.reg; | |
3038 | else if (op1.am == 3) | |
3039 | bin |= 0x70 | op1.reg; | |
38d77545 | 3040 | |
13761a11 NC |
3041 | bfd_putl16 ((bfd_vma) bin, frag); |
3042 | ||
3043 | if (op1.mode == OP_EXP) | |
3044 | { | |
3045 | if (op1.ol != 1) | |
3046 | { | |
3047 | as_bad ("Internal error: unexpected CALLA instruction length: %d\n", op1.ol); | |
65d7bab5 | 3048 | break; |
13761a11 NC |
3049 | } |
3050 | ||
3051 | bfd_putl16 ((bfd_vma) ZEROS, frag + 2); | |
3052 | ||
3053 | if (! fix_emitted) | |
3054 | fix_new_exp (frag_now, where + 2, 2, | |
3055 | &(op1.exp), FALSE, BFD_RELOC_16); | |
3056 | } | |
3057 | ||
3058 | dwarf2_emit_insn (insn_length + op_length); | |
3059 | break; | |
3060 | ||
3061 | case 5: | |
b18c562e | 3062 | { |
13761a11 NC |
3063 | int n; |
3064 | int reg; | |
3065 | ||
3066 | /* [POP|PUSH]M[.A] #N, Rd */ | |
b18c562e | 3067 | line = extract_operand (line, l1, sizeof (l1)); |
13761a11 | 3068 | line = extract_operand (line, l2, sizeof (l2)); |
2469cfa2 | 3069 | |
13761a11 NC |
3070 | if (*l1 != '#') |
3071 | { | |
638d3803 | 3072 | as_bad (_("expected #n as first argument of %s"), opcode->name); |
65d7bab5 | 3073 | break; |
13761a11 NC |
3074 | } |
3075 | parse_exp (l1 + 1, &(op1.exp)); | |
3076 | if (op1.exp.X_op != O_constant) | |
3077 | { | |
3078 | as_bad (_("expected constant expression for first argument of %s"), | |
3079 | opcode->name); | |
65d7bab5 | 3080 | break; |
13761a11 | 3081 | } |
2469cfa2 | 3082 | |
13761a11 NC |
3083 | if ((reg = check_reg (l2)) == -1) |
3084 | { | |
3085 | as_bad (_("expected register as second argument of %s"), | |
3086 | opcode->name); | |
65d7bab5 | 3087 | break; |
13761a11 | 3088 | } |
2469cfa2 | 3089 | |
13761a11 NC |
3090 | op_length = 2; |
3091 | frag = frag_more (op_length); | |
b18c562e | 3092 | where = frag - frag_now->fr_literal; |
13761a11 NC |
3093 | bin = opcode->bin_opcode; |
3094 | if (! addr_op) | |
3095 | bin |= 0x100; | |
3096 | n = op1.exp.X_add_number; | |
3097 | bin |= (n - 1) << 4; | |
638d3803 | 3098 | if (is_opcode ("pushm")) |
13761a11 NC |
3099 | bin |= reg; |
3100 | else | |
3101 | { | |
3102 | if (reg - n + 1 < 0) | |
3103 | { | |
3104 | as_bad (_("Too many registers popped")); | |
65d7bab5 | 3105 | break; |
13761a11 | 3106 | } |
638d3803 | 3107 | |
65d7bab5 | 3108 | /* CPU21 errata: cannot use POPM to restore the SR register. */ |
d1706f38 | 3109 | if (target_is_430xv2 () |
638d3803 NC |
3110 | && (reg - n + 1 < 3) |
3111 | && reg >= 2 | |
3112 | && is_opcode ("popm")) | |
3113 | { | |
3114 | as_bad (_("Cannot use POPM to restore the SR register")); | |
65d7bab5 | 3115 | break; |
638d3803 NC |
3116 | } |
3117 | ||
13761a11 NC |
3118 | bin |= (reg - n + 1); |
3119 | } | |
3120 | ||
b18c562e | 3121 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3122 | dwarf2_emit_insn (op_length); |
3123 | break; | |
3124 | } | |
3125 | ||
3126 | case 6: | |
3127 | { | |
3128 | int n; | |
3129 | int reg; | |
3130 | ||
3131 | /* Bit rotation instructions. RRCM, RRAM, RRUM, RLAM. */ | |
3132 | if (extended & 0xff) | |
3133 | { | |
3134 | as_bad (_("repeat count cannot be used with %s"), opcode->name); | |
65d7bab5 | 3135 | break; |
13761a11 NC |
3136 | } |
3137 | ||
3138 | line = extract_operand (line, l1, sizeof (l1)); | |
3139 | line = extract_operand (line, l2, sizeof (l2)); | |
3140 | ||
3141 | if (*l1 != '#') | |
3142 | { | |
3143 | as_bad (_("expected #n as first argument of %s"), opcode->name); | |
65d7bab5 | 3144 | break; |
13761a11 NC |
3145 | } |
3146 | parse_exp (l1 + 1, &(op1.exp)); | |
3147 | if (op1.exp.X_op != O_constant) | |
3148 | { | |
3149 | as_bad (_("expected constant expression for first argument of %s"), | |
3150 | opcode->name); | |
65d7bab5 | 3151 | break; |
13761a11 NC |
3152 | } |
3153 | n = op1.exp.X_add_number; | |
3154 | if (n > 4 || n < 1) | |
b18c562e | 3155 | { |
13761a11 NC |
3156 | as_bad (_("expected first argument of %s to be in the range 1-4"), |
3157 | opcode->name); | |
65d7bab5 | 3158 | break; |
13761a11 | 3159 | } |
b18c562e | 3160 | |
13761a11 NC |
3161 | if ((reg = check_reg (l2)) == -1) |
3162 | { | |
3163 | as_bad (_("expected register as second argument of %s"), | |
3164 | opcode->name); | |
65d7bab5 | 3165 | break; |
b18c562e NC |
3166 | } |
3167 | ||
d1706f38 | 3168 | if (target_is_430xv2 () && reg == 0) |
638d3803 NC |
3169 | { |
3170 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 3171 | break; |
638d3803 NC |
3172 | } |
3173 | ||
13761a11 NC |
3174 | op_length = 2; |
3175 | frag = frag_more (op_length); | |
3176 | where = frag - frag_now->fr_literal; | |
3177 | ||
3178 | bin = opcode->bin_opcode; | |
3179 | if (! addr_op) | |
3180 | bin |= 0x10; | |
3181 | bin |= (n - 1) << 10; | |
3182 | bin |= reg; | |
3183 | ||
3184 | bfd_putl16 ((bfd_vma) bin, frag); | |
3185 | dwarf2_emit_insn (op_length); | |
3186 | break; | |
3187 | } | |
3188 | ||
13761a11 NC |
3189 | case 8: |
3190 | { | |
3191 | bfd_boolean need_reloc = FALSE; | |
3192 | int n; | |
3193 | int reg; | |
3194 | ||
3195 | /* ADDA, CMPA and SUBA address instructions. */ | |
3196 | if (extended & 0xff) | |
3197 | { | |
3198 | as_bad (_("repeat count cannot be used with %s"), opcode->name); | |
65d7bab5 | 3199 | break; |
13761a11 NC |
3200 | } |
3201 | ||
3202 | line = extract_operand (line, l1, sizeof (l1)); | |
3203 | line = extract_operand (line, l2, sizeof (l2)); | |
3204 | ||
3205 | bin = opcode->bin_opcode; | |
3206 | ||
3207 | if (*l1 == '#') | |
3208 | { | |
3209 | parse_exp (l1 + 1, &(op1.exp)); | |
3210 | ||
3211 | if (op1.exp.X_op == O_constant) | |
3212 | { | |
3213 | n = op1.exp.X_add_number; | |
3214 | if (n > 0xfffff || n < - (0x7ffff)) | |
3215 | { | |
3216 | as_bad (_("expected value of first argument of %s to fit into 20-bits"), | |
3217 | opcode->name); | |
65d7bab5 | 3218 | break; |
13761a11 NC |
3219 | } |
3220 | ||
3221 | bin |= ((n >> 16) & 0xf) << 8; | |
3222 | } | |
3223 | else | |
3224 | { | |
3225 | n = 0; | |
3226 | need_reloc = TRUE; | |
3227 | } | |
3228 | ||
3229 | op_length = 4; | |
3230 | } | |
3231 | else | |
3232 | { | |
3233 | if ((n = check_reg (l1)) == -1) | |
3234 | { | |
3235 | as_bad (_("expected register name or constant as first argument of %s"), | |
3236 | opcode->name); | |
65d7bab5 | 3237 | break; |
13761a11 NC |
3238 | } |
3239 | ||
3240 | bin |= (n << 8) | (1 << 6); | |
3241 | op_length = 2; | |
3242 | } | |
3243 | ||
3244 | if ((reg = check_reg (l2)) == -1) | |
3245 | { | |
3246 | as_bad (_("expected register as second argument of %s"), | |
3247 | opcode->name); | |
65d7bab5 | 3248 | break; |
13761a11 NC |
3249 | } |
3250 | ||
3251 | frag = frag_more (op_length); | |
3252 | where = frag - frag_now->fr_literal; | |
3253 | bin |= reg; | |
3254 | if (need_reloc) | |
3255 | fix_new_exp (frag_now, where, 4, &(op1.exp), FALSE, | |
3256 | BFD_RELOC_MSP430X_ABS20_ADR_SRC); | |
3257 | ||
3258 | bfd_putl16 ((bfd_vma) bin, frag); | |
3259 | if (op_length == 4) | |
3260 | bfd_putl16 ((bfd_vma) (n & 0xffff), frag + 2); | |
3261 | dwarf2_emit_insn (op_length); | |
b18c562e | 3262 | break; |
13761a11 | 3263 | } |
38d77545 | 3264 | |
13761a11 | 3265 | case 9: /* MOVA, BRA, RETA. */ |
00b32ff2 | 3266 | imm_op = FALSE; |
13761a11 | 3267 | bin = opcode->bin_opcode; |
b18c562e | 3268 | |
638d3803 | 3269 | if (is_opcode ("reta")) |
13761a11 NC |
3270 | { |
3271 | /* The RETA instruction does not take any arguments. | |
3272 | The implicit first argument is @SP+. | |
3273 | The implicit second argument is PC. */ | |
3274 | op1.mode = OP_REG; | |
3275 | op1.am = 3; | |
3276 | op1.reg = 1; | |
3277 | ||
3278 | op2.mode = OP_REG; | |
3279 | op2.reg = 0; | |
3280 | } | |
3281 | else | |
3282 | { | |
3283 | line = extract_operand (line, l1, sizeof (l1)); | |
3284 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, | |
3285 | &imm_op, extended_op, FALSE); | |
b18c562e | 3286 | |
638d3803 | 3287 | if (is_opcode ("bra")) |
13761a11 NC |
3288 | { |
3289 | /* This is the BRA synthetic instruction. | |
3290 | The second argument is always PC. */ | |
3291 | op2.mode = OP_REG; | |
3292 | op2.reg = 0; | |
3293 | } | |
3294 | else | |
3295 | { | |
3296 | line = extract_operand (line, l2, sizeof (l2)); | |
3297 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, | |
3298 | extended_op, TRUE); | |
3299 | } | |
38d77545 | 3300 | |
13761a11 NC |
3301 | if (res) |
3302 | break; /* Error occurred. All warnings were done before. */ | |
3303 | } | |
3304 | ||
3305 | /* Only a restricted subset of the normal MSP430 addressing modes | |
3306 | are supported here, so check for the ones that are allowed. */ | |
3307 | if ((op_length = try_encode_mova (imm_op, bin, & op1, & op2, | |
3308 | & error_message)) == 0) | |
2469cfa2 | 3309 | { |
13761a11 | 3310 | as_bad (error_message, opcode->name); |
65d7bab5 | 3311 | break; |
13761a11 NC |
3312 | } |
3313 | dwarf2_emit_insn (op_length); | |
3314 | break; | |
3315 | ||
3316 | case 10: /* RPT */ | |
3317 | line = extract_operand (line, l1, sizeof l1); | |
3318 | /* The RPT instruction only accepted immediates and registers. */ | |
3319 | if (*l1 == '#') | |
3320 | { | |
3321 | parse_exp (l1 + 1, &(op1.exp)); | |
3322 | if (op1.exp.X_op != O_constant) | |
3323 | { | |
3324 | as_bad (_("expected constant value as argument to RPT")); | |
65d7bab5 | 3325 | break; |
13761a11 NC |
3326 | } |
3327 | if (op1.exp.X_add_number < 1 | |
3328 | || op1.exp.X_add_number > (1 << 4)) | |
3329 | { | |
3330 | as_bad (_("expected constant in the range 2..16")); | |
65d7bab5 | 3331 | break; |
13761a11 NC |
3332 | } |
3333 | ||
3334 | /* We silently accept and ignore a repeat count of 1. */ | |
3335 | if (op1.exp.X_add_number > 1) | |
3336 | repeat_count = op1.exp.X_add_number; | |
3337 | } | |
3338 | else | |
3339 | { | |
3340 | int reg; | |
b18c562e | 3341 | |
13761a11 NC |
3342 | if ((reg = check_reg (l1)) != -1) |
3343 | { | |
3344 | if (reg == 0) | |
3345 | as_warn (_("PC used as an argument to RPT")); | |
3346 | else | |
3347 | repeat_count = - reg; | |
3348 | } | |
2469cfa2 | 3349 | else |
13761a11 NC |
3350 | { |
3351 | as_bad (_("expected constant or register name as argument to RPT insn")); | |
65d7bab5 | 3352 | break; |
13761a11 | 3353 | } |
2469cfa2 | 3354 | } |
b18c562e | 3355 | break; |
13761a11 NC |
3356 | |
3357 | default: | |
3358 | as_bad (_("Illegal emulated instruction ")); | |
3359 | break; | |
2469cfa2 | 3360 | } |
b18c562e | 3361 | break; |
2469cfa2 | 3362 | |
b18c562e NC |
3363 | case 1: /* Format 1, double operand. */ |
3364 | line = extract_operand (line, l1, sizeof (l1)); | |
3365 | line = extract_operand (line, l2, sizeof (l2)); | |
13761a11 NC |
3366 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, &imm_op, extended_op, TRUE); |
3367 | res += msp430_dstoperand (&op2, l2, opcode->bin_opcode, extended_op, TRUE); | |
2469cfa2 | 3368 | |
b18c562e NC |
3369 | if (res) |
3370 | break; /* Error occurred. All warnings were done before. */ | |
2469cfa2 | 3371 | |
13761a11 | 3372 | if (extended_op |
638d3803 | 3373 | && is_opcode ("movx") |
13761a11 NC |
3374 | && addr_op |
3375 | && msp430_enable_relax) | |
3376 | { | |
3377 | /* This is the MOVX.A instruction. See if we can convert | |
3378 | it into the MOVA instruction instead. This saves 2 bytes. */ | |
3379 | if ((op_length = try_encode_mova (imm_op, 0x0000, & op1, & op2, | |
3380 | NULL)) != 0) | |
3381 | { | |
3382 | dwarf2_emit_insn (op_length); | |
3383 | break; | |
3384 | } | |
3385 | } | |
3386 | ||
65d7bab5 NC |
3387 | bin |= (op2.reg | (op1.reg << 8) | (op1.am << 4) | (op2.am << 7)); |
3388 | ||
2213f746 NC |
3389 | /* If the PC is the destination... */ |
3390 | if (op2.am == 0 && op2.reg == 0 | |
3391 | /* ... and the opcode alters the SR. */ | |
3392 | && !(is_opcode ("bic") || is_opcode ("bis") || is_opcode ("mov") | |
3393 | || is_opcode ("bicx") || is_opcode ("bisx") || is_opcode ("movx"))) | |
3394 | { | |
3395 | if (silicon_errata_fix & SILICON_ERRATA_CPU11) | |
3396 | as_bad (_("CPU11: PC is destinstion of SR altering instruction")); | |
3397 | else if (silicon_errata_warn & SILICON_ERRATA_CPU11) | |
3398 | as_warn (_("CPU11: PC is destinstion of SR altering instruction")); | |
3399 | } | |
3400 | ||
3401 | /* If the status register is the destination... */ | |
3402 | if (op2.am == 0 && op2.reg == 2 | |
3403 | /* ... and the opcode alters the SR. */ | |
3404 | && (is_opcode ("add") || is_opcode ("addc") || is_opcode ("and") | |
3405 | || is_opcode ("dadd") || is_opcode ("sub") || is_opcode ("subc") | |
3406 | || is_opcode ("xor") | |
3407 | || is_opcode ("addx") || is_opcode ("addcx") || is_opcode ("andx") | |
3408 | || is_opcode ("daddx") || is_opcode ("subx") || is_opcode ("subcx") | |
3409 | || is_opcode ("xorx") | |
3410 | )) | |
3411 | { | |
3412 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
3413 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
3414 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
3415 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
3416 | } | |
3417 | ||
65d7bab5 NC |
3418 | if ( (is_opcode ("bic") && bin == 0xc232) |
3419 | || (is_opcode ("bis") && bin == 0xd232) | |
3420 | || (is_opcode ("mov") && op2.mode == OP_REG && op2.reg == 2)) | |
3421 | { | |
2213f746 NC |
3422 | /* Avoid false checks when a constant value is being put into the SR. */ |
3423 | if (op1.mode == OP_EXP | |
3424 | && op1.exp.X_op == O_constant | |
3425 | && (op1.exp.X_add_number & 0x8) != 0x8) | |
3426 | ; | |
3427 | else | |
3428 | check_for_nop |= NOP_CHECK_INTERRUPT; | |
65d7bab5 NC |
3429 | } |
3430 | ||
2213f746 NC |
3431 | if (((is_opcode ("bis") && bin == 0xd032) |
3432 | || (is_opcode ("mov") && bin == 0x4032) | |
3433 | || (is_opcode ("xor") && bin == 0xe032)) | |
3434 | && op1.mode == OP_EXP | |
3435 | && op1.exp.X_op == O_constant | |
3436 | && (op1.exp.X_add_number & 0x10) == 0x10) | |
3437 | check_for_nop |= NOP_CHECK_CPU19; | |
3438 | ||
13761a11 | 3439 | /* Compute the entire length of the instruction in bytes. */ |
65d7bab5 | 3440 | op_length = (extended_op ? 2 : 0) /* The extension word. */ |
13761a11 NC |
3441 | + 2 /* The opcode */ |
3442 | + (2 * op1.ol) /* The first operand. */ | |
3443 | + (2 * op2.ol); /* The second operand. */ | |
b18c562e | 3444 | |
65d7bab5 NC |
3445 | insn_length += op_length; |
3446 | frag = frag_more (op_length); | |
b18c562e | 3447 | where = frag - frag_now->fr_literal; |
38d77545 | 3448 | |
13761a11 NC |
3449 | if (extended_op) |
3450 | { | |
3451 | if (!addr_op) | |
3452 | extended |= BYTE_OPERATION; | |
3453 | ||
3454 | if ((op1.ol != 0 || op2.ol != 0) && ((extended & 0xf) != 0)) | |
3455 | { | |
3456 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3457 | extended &= ~ 0xf; | |
3458 | } | |
3459 | ||
3460 | /* If necessary, emit a reloc to update the extension word. */ | |
3461 | if (op1.mode == OP_EXP) | |
3462 | { | |
3463 | if (op1.exp.X_op == O_constant) | |
3464 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
3465 | ||
e66c3c25 | 3466 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3467 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3468 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3469 | else | |
3470 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3471 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3472 | } | |
38d77545 | 3473 | |
13761a11 NC |
3474 | if (op2.mode == OP_EXP) |
3475 | { | |
3476 | if (op2.exp.X_op == O_constant) | |
3477 | extended |= (op2.exp.X_add_number >> 16) & 0xf; | |
3478 | ||
3479 | else if (op1.mode == OP_EXP) | |
3480 | fix_new_exp (frag_now, where, 8, &(op2.exp), FALSE, | |
3481 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_ODST | |
3482 | : BFD_RELOC_MSP430X_PCR20_EXT_ODST); | |
38d77545 | 3483 | |
13761a11 NC |
3484 | else |
3485 | fix_new_exp (frag_now, where, 6, &(op2.exp), FALSE, | |
3486 | op2.reg ? BFD_RELOC_MSP430X_ABS20_EXT_DST | |
3487 | : BFD_RELOC_MSP430X_PCR20_EXT_DST); | |
3488 | } | |
3489 | ||
3490 | /* Emit the extension word. */ | |
3491 | bfd_putl16 (extended, frag); | |
3492 | where += 2; | |
3493 | frag += 2; | |
3494 | } | |
3495 | ||
b18c562e | 3496 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3497 | where += 2; |
3498 | frag += 2; | |
b18c562e NC |
3499 | |
3500 | if (op1.mode == OP_EXP) | |
2469cfa2 | 3501 | { |
13761a11 NC |
3502 | if (op1.exp.X_op == O_constant) |
3503 | { | |
3504 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3505 | } | |
b18c562e | 3506 | else |
13761a11 NC |
3507 | { |
3508 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3509 | ||
3510 | if (!extended_op) | |
3511 | { | |
e66c3c25 | 3512 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 3513 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3514 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3515 | else |
3516 | fix_new_exp (frag_now, where, 2, | |
3517 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3518 | } | |
3519 | } | |
3520 | ||
3521 | where += 2; | |
3522 | frag += 2; | |
2469cfa2 | 3523 | } |
b18c562e NC |
3524 | |
3525 | if (op2.mode == OP_EXP) | |
2469cfa2 | 3526 | { |
13761a11 NC |
3527 | if (op2.exp.X_op == O_constant) |
3528 | { | |
3529 | bfd_putl16 (op2.exp.X_add_number & 0xffff, frag); | |
3530 | } | |
b18c562e | 3531 | else |
13761a11 NC |
3532 | { |
3533 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3534 | ||
3535 | if (!extended_op) | |
3536 | { | |
3537 | if (op2.reg) /* Not PC relative. */ | |
3538 | fix_new_exp (frag_now, where, 2, | |
00b32ff2 | 3539 | &(op2.exp), FALSE, CHECK_RELOC_MSP430 (op2)); |
13761a11 NC |
3540 | else |
3541 | fix_new_exp (frag_now, where, 2, | |
3542 | &(op2.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3543 | } | |
3544 | } | |
3545 | } | |
3546 | ||
13761a11 | 3547 | dwarf2_emit_insn (insn_length); |
2213f746 NC |
3548 | |
3549 | /* If the PC is the destination... */ | |
3550 | if (op2.am == 0 && op2.reg == 0 | |
3551 | /* ... but the opcode does not alter the destination. */ | |
3552 | && (is_opcode ("cmp") || is_opcode ("bit") || is_opcode ("cmpx"))) | |
3553 | check_for_nop |= NOP_CHECK_CPU12; | |
b18c562e NC |
3554 | break; |
3555 | ||
3556 | case 2: /* Single-operand mostly instr. */ | |
3557 | if (opcode->insn_opnumb == 0) | |
2469cfa2 | 3558 | { |
b18c562e | 3559 | /* reti instruction. */ |
13761a11 | 3560 | insn_length += 2; |
b18c562e NC |
3561 | frag = frag_more (2); |
3562 | bfd_putl16 ((bfd_vma) bin, frag); | |
13761a11 | 3563 | dwarf2_emit_insn (insn_length); |
b18c562e | 3564 | break; |
2469cfa2 | 3565 | } |
2469cfa2 | 3566 | |
b18c562e | 3567 | line = extract_operand (line, l1, sizeof (l1)); |
13761a11 NC |
3568 | res = msp430_srcoperand (&op1, l1, opcode->bin_opcode, |
3569 | &imm_op, extended_op, TRUE); | |
b18c562e NC |
3570 | if (res) |
3571 | break; /* Error in operand. */ | |
2469cfa2 | 3572 | |
d1706f38 NC |
3573 | if (target_is_430xv2 () |
3574 | && op1.mode == OP_REG | |
38d77545 | 3575 | && op1.reg == 0 |
638d3803 NC |
3576 | && (is_opcode ("rrax") |
3577 | || is_opcode ("rrcx") | |
3578 | || is_opcode ("rra") | |
3579 | || is_opcode ("rrc"))) | |
3580 | { | |
3581 | as_bad (_("%s: attempt to rotate the PC register"), opcode->name); | |
65d7bab5 | 3582 | break; |
638d3803 | 3583 | } |
38d77545 | 3584 | |
2213f746 NC |
3585 | /* If the status register is the destination... */ |
3586 | if (op1.am == 0 && op1.reg == 2 | |
3587 | /* ... and the opcode alters the SR. */ | |
3588 | && (is_opcode ("rra") || is_opcode ("rrc") || is_opcode ("sxt"))) | |
3589 | { | |
3590 | if (silicon_errata_fix & SILICON_ERRATA_CPU13) | |
3591 | as_bad (_("CPU13: SR is destinstion of SR altering instruction")); | |
3592 | else if (silicon_errata_warn & SILICON_ERRATA_CPU13) | |
3593 | as_warn (_("CPU13: SR is destinstion of SR altering instruction")); | |
3594 | } | |
3595 | ||
13761a11 NC |
3596 | insn_length = (extended_op ? 2 : 0) + 2 + (op1.ol * 2); |
3597 | frag = frag_more (insn_length); | |
b18c562e | 3598 | where = frag - frag_now->fr_literal; |
38d77545 | 3599 | |
13761a11 NC |
3600 | if (extended_op) |
3601 | { | |
638d3803 | 3602 | if (is_opcode ("swpbx") || is_opcode ("sxtx")) |
13761a11 NC |
3603 | { |
3604 | /* These two instructions use a special | |
3605 | encoding of the A/L and B/W bits. */ | |
3606 | bin &= ~ BYTE_OPERATION; | |
3607 | ||
3608 | if (byte_op) | |
3609 | { | |
3610 | as_bad (_("%s instruction does not accept a .b suffix"), | |
3611 | opcode->name); | |
65d7bab5 | 3612 | break; |
13761a11 NC |
3613 | } |
3614 | else if (! addr_op) | |
3615 | extended |= BYTE_OPERATION; | |
3616 | } | |
3617 | else if (! addr_op) | |
3618 | extended |= BYTE_OPERATION; | |
3619 | ||
c1d9289f NC |
3620 | if (is_opcode ("rrux")) |
3621 | extended |= IGNORE_CARRY_BIT; | |
3622 | ||
13761a11 NC |
3623 | if (op1.ol != 0 && ((extended & 0xf) != 0)) |
3624 | { | |
3625 | as_bad (_("repeat instruction used with non-register mode instruction")); | |
3626 | extended &= ~ 0xf; | |
3627 | } | |
3628 | ||
3629 | if (op1.mode == OP_EXP) | |
3630 | { | |
3631 | if (op1.exp.X_op == O_constant) | |
3632 | extended |= ((op1.exp.X_add_number >> 16) & 0xf) << 7; | |
38d77545 | 3633 | |
e66c3c25 | 3634 | else if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 NC |
3635 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, |
3636 | BFD_RELOC_MSP430X_ABS20_EXT_SRC); | |
3637 | else | |
3638 | fix_new_exp (frag_now, where, 6, &(op1.exp), FALSE, | |
3639 | BFD_RELOC_MSP430X_PCR20_EXT_SRC); | |
3640 | } | |
38d77545 | 3641 | |
13761a11 NC |
3642 | /* Emit the extension word. */ |
3643 | bfd_putl16 (extended, frag); | |
3644 | frag += 2; | |
3645 | where += 2; | |
3646 | } | |
3647 | ||
3648 | bin |= op1.reg | (op1.am << 4); | |
b18c562e | 3649 | bfd_putl16 ((bfd_vma) bin, frag); |
13761a11 NC |
3650 | frag += 2; |
3651 | where += 2; | |
b18c562e NC |
3652 | |
3653 | if (op1.mode == OP_EXP) | |
2469cfa2 | 3654 | { |
13761a11 NC |
3655 | if (op1.exp.X_op == O_constant) |
3656 | { | |
3657 | bfd_putl16 (op1.exp.X_add_number & 0xffff, frag); | |
3658 | } | |
b18c562e | 3659 | else |
13761a11 NC |
3660 | { |
3661 | bfd_putl16 ((bfd_vma) ZEROS, frag); | |
3662 | ||
3663 | if (!extended_op) | |
3664 | { | |
e66c3c25 | 3665 | if (op1.reg || op1.am == 3) /* Not PC relative. */ |
13761a11 | 3666 | fix_new_exp (frag_now, where, 2, |
00b32ff2 | 3667 | &(op1.exp), FALSE, CHECK_RELOC_MSP430 (op1)); |
13761a11 NC |
3668 | else |
3669 | fix_new_exp (frag_now, where, 2, | |
3670 | &(op1.exp), TRUE, CHECK_RELOC_MSP430_PCREL); | |
3671 | } | |
3672 | } | |
2469cfa2 | 3673 | } |
13761a11 NC |
3674 | |
3675 | dwarf2_emit_insn (insn_length); | |
b18c562e | 3676 | break; |
2469cfa2 | 3677 | |
b18c562e NC |
3678 | case 3: /* Conditional jumps instructions. */ |
3679 | line = extract_operand (line, l1, sizeof (l1)); | |
3680 | /* l1 is a label. */ | |
3681 | if (l1[0]) | |
2469cfa2 | 3682 | { |
b18c562e NC |
3683 | char *m = l1; |
3684 | expressionS exp; | |
2469cfa2 | 3685 | |
b18c562e NC |
3686 | if (*m == '$') |
3687 | m++; | |
2469cfa2 | 3688 | |
b18c562e | 3689 | parse_exp (m, &exp); |
2469cfa2 | 3690 | |
b18c562e | 3691 | /* In order to handle something like: |
2469cfa2 | 3692 | |
b18c562e NC |
3693 | and #0x8000, r5 |
3694 | tst r5 | |
3695 | jz 4 ; skip next 4 bytes | |
3696 | inv r5 | |
3697 | inc r5 | |
3698 | nop ; will jump here if r5 positive or zero | |
2469cfa2 | 3699 | |
b18c562e | 3700 | jCOND -n ;assumes jump n bytes backward: |
2469cfa2 | 3701 | |
b18c562e NC |
3702 | mov r5,r6 |
3703 | jmp -2 | |
2469cfa2 | 3704 | |
b18c562e NC |
3705 | is equal to: |
3706 | lab: | |
3707 | mov r5,r6 | |
3708 | jmp lab | |
3709 | ||
3710 | jCOND $n ; jump from PC in either direction. */ | |
2469cfa2 | 3711 | |
b18c562e NC |
3712 | if (exp.X_op == O_constant) |
3713 | { | |
3714 | int x = exp.X_add_number; | |
2469cfa2 | 3715 | |
b18c562e NC |
3716 | if (x & 1) |
3717 | { | |
3718 | as_warn (_("Even number required. Rounded to %d"), x + 1); | |
3719 | x++; | |
3720 | } | |
2469cfa2 | 3721 | |
b18c562e NC |
3722 | if ((*l1 == '$' && x > 0) || x < 0) |
3723 | x -= 2; | |
2469cfa2 | 3724 | |
b18c562e NC |
3725 | x >>= 1; |
3726 | ||
3727 | if (x > 512 || x < -511) | |
3728 | { | |
3729 | as_bad (_("Wrong displacement %d"), x << 1); | |
3730 | break; | |
3731 | } | |
3732 | ||
13761a11 NC |
3733 | insn_length += 2; |
3734 | frag = frag_more (2); /* Instr size is 1 word. */ | |
3735 | ||
b18c562e NC |
3736 | bin |= x & 0x3ff; |
3737 | bfd_putl16 ((bfd_vma) bin, frag); | |
3738 | } | |
3739 | else if (exp.X_op == O_symbol && *l1 != '$') | |
2469cfa2 | 3740 | { |
13761a11 NC |
3741 | insn_length += 2; |
3742 | frag = frag_more (2); /* Instr size is 1 word. */ | |
b18c562e NC |
3743 | where = frag - frag_now->fr_literal; |
3744 | fix_new_exp (frag_now, where, 2, | |
3745 | &exp, TRUE, BFD_RELOC_MSP430_10_PCREL); | |
3746 | ||
3747 | bfd_putl16 ((bfd_vma) bin, frag); | |
2469cfa2 | 3748 | } |
b18c562e | 3749 | else if (*l1 == '$') |
2469cfa2 | 3750 | { |
b18c562e | 3751 | as_bad (_("instruction requires label sans '$'")); |
2469cfa2 | 3752 | } |
b18c562e | 3753 | else |
13761a11 NC |
3754 | as_bad (_ |
3755 | ("instruction requires label or value in range -511:512")); | |
3756 | dwarf2_emit_insn (insn_length); | |
2a9a06c1 | 3757 | break; |
2469cfa2 | 3758 | } |
b18c562e NC |
3759 | else |
3760 | { | |
3761 | as_bad (_("instruction requires label")); | |
3762 | break; | |
3763 | } | |
3764 | break; | |
2469cfa2 | 3765 | |
b18c562e | 3766 | case 4: /* Extended jumps. */ |
77592908 DD |
3767 | if (!msp430_enable_polys) |
3768 | { | |
20203fb9 | 3769 | as_bad (_("polymorphs are not enabled. Use -mP option to enable.")); |
77592908 DD |
3770 | break; |
3771 | } | |
3739860c | 3772 | |
b18c562e NC |
3773 | line = extract_operand (line, l1, sizeof (l1)); |
3774 | if (l1[0]) | |
2469cfa2 | 3775 | { |
b18c562e NC |
3776 | char *m = l1; |
3777 | expressionS exp; | |
2469cfa2 | 3778 | |
b18c562e NC |
3779 | /* Ignore absolute addressing. make it PC relative anyway. */ |
3780 | if (*m == '#' || *m == '$') | |
3781 | m++; | |
2469cfa2 | 3782 | |
b18c562e NC |
3783 | parse_exp (m, & exp); |
3784 | if (exp.X_op == O_symbol) | |
2469cfa2 | 3785 | { |
b18c562e NC |
3786 | /* Relaxation required. */ |
3787 | struct rcodes_s rc = msp430_rcodes[opcode->insn_opnumb]; | |
3788 | ||
638d3803 | 3789 | if (target_is_430x ()) |
13761a11 NC |
3790 | rc = msp430x_rcodes[opcode->insn_opnumb]; |
3791 | ||
3792 | /* The parameter to dwarf2_emit_insn is actually the offset to | |
3793 | the start of the insn from the fix piece of instruction that | |
3794 | was emitted. Since next fragments may have variable size we | |
3795 | tie debug info to the beginning of the instruction. */ | |
3796 | insn_length += 8; | |
3e470ab5 | 3797 | frag = frag_more (8); |
2a9a06c1 | 3798 | dwarf2_emit_insn (0); |
3e470ab5 DD |
3799 | bfd_putl16 ((bfd_vma) rc.sop, frag); |
3800 | frag = frag_variant (rs_machine_dependent, 8, 2, | |
13761a11 NC |
3801 | /* Wild guess. */ |
3802 | ENCODE_RELAX (rc.lpos, STATE_BITS10), | |
b18c562e NC |
3803 | exp.X_add_symbol, |
3804 | 0, /* Offset is zero if jump dist less than 1K. */ | |
3805 | (char *) frag); | |
3806 | break; | |
2469cfa2 NC |
3807 | } |
3808 | } | |
b18c562e NC |
3809 | |
3810 | as_bad (_("instruction requires label")); | |
3811 | break; | |
3812 | ||
3813 | case 5: /* Emulated extended branches. */ | |
77592908 DD |
3814 | if (!msp430_enable_polys) |
3815 | { | |
20203fb9 | 3816 | as_bad (_("polymorphs are not enabled. Use -mP option to enable.")); |
77592908 DD |
3817 | break; |
3818 | } | |
b18c562e NC |
3819 | line = extract_operand (line, l1, sizeof (l1)); |
3820 | if (l1[0]) | |
2469cfa2 | 3821 | { |
b18c562e NC |
3822 | char * m = l1; |
3823 | expressionS exp; | |
3824 | ||
3825 | /* Ignore absolute addressing. make it PC relative anyway. */ | |
3826 | if (*m == '#' || *m == '$') | |
3827 | m++; | |
3828 | ||
3829 | parse_exp (m, & exp); | |
3830 | if (exp.X_op == O_symbol) | |
3831 | { | |
3832 | /* Relaxation required. */ | |
3833 | struct hcodes_s hc = msp430_hcodes[opcode->insn_opnumb]; | |
3834 | ||
638d3803 | 3835 | if (target_is_430x ()) |
13761a11 NC |
3836 | hc = msp430x_hcodes[opcode->insn_opnumb]; |
3837 | ||
3838 | insn_length += 8; | |
3e470ab5 | 3839 | frag = frag_more (8); |
2a9a06c1 | 3840 | dwarf2_emit_insn (0); |
3e470ab5 DD |
3841 | bfd_putl16 ((bfd_vma) hc.op0, frag); |
3842 | bfd_putl16 ((bfd_vma) hc.op1, frag+2); | |
3843 | ||
3844 | frag = frag_variant (rs_machine_dependent, 8, 2, | |
b18c562e NC |
3845 | ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_BITS10), /* Wild guess. */ |
3846 | exp.X_add_symbol, | |
3847 | 0, /* Offset is zero if jump dist less than 1K. */ | |
3848 | (char *) frag); | |
3849 | break; | |
3850 | } | |
2469cfa2 NC |
3851 | } |
3852 | ||
b18c562e NC |
3853 | as_bad (_("instruction requires label")); |
3854 | break; | |
2469cfa2 | 3855 | |
b18c562e | 3856 | default: |
79cf5950 | 3857 | as_bad (_("Illegal instruction or not implemented opcode.")); |
b18c562e | 3858 | } |
2469cfa2 | 3859 | |
b18c562e NC |
3860 | input_line_pointer = line; |
3861 | return 0; | |
3862 | } | |
2469cfa2 | 3863 | |
b18c562e NC |
3864 | void |
3865 | md_assemble (char * str) | |
3866 | { | |
3867 | struct msp430_opcode_s * opcode; | |
3868 | char cmd[32]; | |
3869 | unsigned int i = 0; | |
2469cfa2 | 3870 | |
b18c562e | 3871 | str = skip_space (str); /* Skip leading spaces. */ |
64a81db0 | 3872 | str = extract_cmd (str, cmd, sizeof (cmd) - 1); |
2469cfa2 | 3873 | |
64a81db0 | 3874 | while (cmd[i]) |
b18c562e NC |
3875 | { |
3876 | char a = TOLOWER (cmd[i]); | |
3877 | cmd[i] = a; | |
3878 | i++; | |
2469cfa2 | 3879 | } |
2469cfa2 | 3880 | |
b18c562e | 3881 | if (!cmd[0]) |
2469cfa2 | 3882 | { |
b18c562e NC |
3883 | as_bad (_("can't find opcode ")); |
3884 | return; | |
3885 | } | |
2469cfa2 | 3886 | |
b18c562e | 3887 | opcode = (struct msp430_opcode_s *) hash_find (msp430_hash, cmd); |
2469cfa2 | 3888 | |
b18c562e NC |
3889 | if (opcode == NULL) |
3890 | { | |
3891 | as_bad (_("unknown opcode `%s'"), cmd); | |
3892 | return; | |
2469cfa2 | 3893 | } |
2469cfa2 | 3894 | |
b18c562e NC |
3895 | { |
3896 | char *__t = input_line_pointer; | |
2469cfa2 | 3897 | |
b18c562e NC |
3898 | msp430_operands (opcode, str); |
3899 | input_line_pointer = __t; | |
3900 | } | |
3901 | } | |
2469cfa2 NC |
3902 | |
3903 | /* GAS will call this function for each section at the end of the assembly, | |
3904 | to permit the CPU backend to adjust the alignment of a section. */ | |
3905 | ||
3906 | valueT | |
b18c562e | 3907 | md_section_align (asection * seg, valueT addr) |
2469cfa2 NC |
3908 | { |
3909 | int align = bfd_get_section_alignment (stdoutput, seg); | |
3910 | ||
8d3842cd | 3911 | return ((addr + (1 << align) - 1) & -(1 << align)); |
2469cfa2 NC |
3912 | } |
3913 | ||
3914 | /* If you define this macro, it should return the offset between the | |
3915 | address of a PC relative fixup and the position from which the PC | |
3916 | relative adjustment should be made. On many processors, the base | |
3917 | of a PC relative instruction is the next instruction, so this | |
3918 | macro would return the length of an instruction. */ | |
3919 | ||
3920 | long | |
b18c562e | 3921 | md_pcrel_from_section (fixS * fixp, segT sec) |
2469cfa2 NC |
3922 | { |
3923 | if (fixp->fx_addsy != (symbolS *) NULL | |
3924 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
3925 | || (S_GET_SEGMENT (fixp->fx_addsy) != sec))) | |
3926 | return 0; | |
3927 | ||
3928 | return fixp->fx_frag->fr_address + fixp->fx_where; | |
3929 | } | |
3930 | ||
77592908 DD |
3931 | /* Replaces standard TC_FORCE_RELOCATION_LOCAL. |
3932 | Now it handles the situation when relocations | |
13761a11 | 3933 | have to be passed to linker. */ |
77592908 | 3934 | int |
13761a11 | 3935 | msp430_force_relocation_local (fixS *fixp) |
77592908 | 3936 | { |
13761a11 NC |
3937 | if (fixp->fx_r_type == BFD_RELOC_MSP430_10_PCREL) |
3938 | return 1; | |
13761a11 NC |
3939 | if (fixp->fx_pcrel) |
3940 | return 1; | |
77592908 DD |
3941 | if (msp430_enable_polys |
3942 | && !msp430_enable_relax) | |
3943 | return 1; | |
13761a11 NC |
3944 | |
3945 | return (!fixp->fx_pcrel | |
3946 | || generic_force_reloc (fixp)); | |
77592908 DD |
3947 | } |
3948 | ||
3949 | ||
2469cfa2 NC |
3950 | /* GAS will call this for each fixup. It should store the correct |
3951 | value in the object file. */ | |
2469cfa2 | 3952 | void |
55cf6793 | 3953 | md_apply_fix (fixS * fixp, valueT * valuep, segT seg) |
2469cfa2 | 3954 | { |
b18c562e | 3955 | unsigned char * where; |
2469cfa2 NC |
3956 | unsigned long insn; |
3957 | long value; | |
3958 | ||
3959 | if (fixp->fx_addsy == (symbolS *) NULL) | |
3960 | { | |
3961 | value = *valuep; | |
3962 | fixp->fx_done = 1; | |
3963 | } | |
3964 | else if (fixp->fx_pcrel) | |
3965 | { | |
3966 | segT s = S_GET_SEGMENT (fixp->fx_addsy); | |
3967 | ||
3968 | if (fixp->fx_addsy && (s == seg || s == absolute_section)) | |
3969 | { | |
18af0b39 NC |
3970 | /* FIXME: We can appear here only in case if we perform a pc |
3971 | relative jump to the label which is i) global, ii) locally | |
3972 | defined or this is a jump to an absolute symbol. | |
3973 | If this is an absolute symbol -- everything is OK. | |
3974 | If this is a global label, we've got a symbol value defined | |
3975 | twice: | |
3976 | 1. S_GET_VALUE (fixp->fx_addsy) will contain a symbol offset | |
3977 | from this section start | |
3978 | 2. *valuep will contain the real offset from jump insn to the | |
3979 | label | |
3980 | So, the result of S_GET_VALUE (fixp->fx_addsy) + (* valuep); | |
3981 | will be incorrect. Therefore remove s_get_value. */ | |
3982 | value = /* S_GET_VALUE (fixp->fx_addsy) + */ * valuep; | |
2469cfa2 NC |
3983 | fixp->fx_done = 1; |
3984 | } | |
3985 | else | |
3986 | value = *valuep; | |
3987 | } | |
3988 | else | |
3989 | { | |
3990 | value = fixp->fx_offset; | |
3991 | ||
3992 | if (fixp->fx_subsy != (symbolS *) NULL) | |
3993 | { | |
3994 | if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) | |
3995 | { | |
3996 | value -= S_GET_VALUE (fixp->fx_subsy); | |
3997 | fixp->fx_done = 1; | |
3998 | } | |
2469cfa2 NC |
3999 | } |
4000 | } | |
4001 | ||
77592908 DD |
4002 | fixp->fx_no_overflow = 1; |
4003 | ||
38d77545 | 4004 | /* If polymorphs are enabled and relax disabled. |
13761a11 | 4005 | do not kill any relocs and pass them to linker. */ |
38d77545 | 4006 | if (msp430_enable_polys |
77592908 | 4007 | && !msp430_enable_relax) |
2469cfa2 | 4008 | { |
e66c3c25 NC |
4009 | if (!fixp->fx_addsy |
4010 | || S_GET_SEGMENT (fixp->fx_addsy) == absolute_section) | |
79cf5950 | 4011 | fixp->fx_done = 1; /* It is ok to kill 'abs' reloc. */ |
77592908 DD |
4012 | else |
4013 | fixp->fx_done = 0; | |
2469cfa2 NC |
4014 | } |
4015 | ||
4016 | if (fixp->fx_done) | |
4017 | { | |
4018 | /* Fetch the instruction, insert the fully resolved operand | |
8cd5b113 | 4019 | value, and stuff the instruction back again. */ |
2132e3a3 | 4020 | where = (unsigned char *) fixp->fx_frag->fr_literal + fixp->fx_where; |
2469cfa2 NC |
4021 | |
4022 | insn = bfd_getl16 (where); | |
4023 | ||
4024 | switch (fixp->fx_r_type) | |
4025 | { | |
4026 | case BFD_RELOC_MSP430_10_PCREL: | |
4027 | if (value & 1) | |
4028 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4029 | _("odd address operand: %ld"), value); | |
4030 | ||
4031 | /* Jumps are in words. */ | |
4032 | value >>= 1; | |
4033 | --value; /* Correct PC. */ | |
4034 | ||
4035 | if (value < -512 || value > 511) | |
4036 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4037 | _("operand out of range: %ld"), value); | |
4038 | ||
4039 | value &= 0x3ff; /* get rid of extended sign */ | |
4040 | bfd_putl16 ((bfd_vma) (value | insn), where); | |
4041 | break; | |
4042 | ||
13761a11 | 4043 | case BFD_RELOC_MSP430X_PCR16: |
b18c562e | 4044 | case BFD_RELOC_MSP430_RL_PCREL: |
2469cfa2 NC |
4045 | case BFD_RELOC_MSP430_16_PCREL: |
4046 | if (value & 1) | |
4047 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4048 | _("odd address operand: %ld"), value); | |
13761a11 | 4049 | /* Fall through. */ |
2469cfa2 NC |
4050 | |
4051 | case BFD_RELOC_MSP430_16_PCREL_BYTE: | |
4052 | /* Nothing to be corrected here. */ | |
4053 | if (value < -32768 || value > 65536) | |
4054 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4055 | _("operand out of range: %ld"), value); | |
13761a11 | 4056 | /* Fall through. */ |
2469cfa2 | 4057 | |
13761a11 NC |
4058 | case BFD_RELOC_MSP430X_ABS16: |
4059 | case BFD_RELOC_MSP430_16: | |
4060 | case BFD_RELOC_16: | |
4061 | case BFD_RELOC_MSP430_16_BYTE: | |
2469cfa2 NC |
4062 | value &= 0xffff; /* Get rid of extended sign. */ |
4063 | bfd_putl16 ((bfd_vma) value, where); | |
4064 | break; | |
4065 | ||
00b32ff2 NC |
4066 | case BFD_RELOC_MSP430_ABS_HI16: |
4067 | value >>= 16; | |
4068 | value &= 0xffff; /* Get rid of extended sign. */ | |
4069 | bfd_putl16 ((bfd_vma) value, where); | |
4070 | break; | |
3739860c | 4071 | |
2469cfa2 NC |
4072 | case BFD_RELOC_32: |
4073 | bfd_putl16 ((bfd_vma) value, where); | |
4074 | break; | |
4075 | ||
13761a11 NC |
4076 | case BFD_RELOC_MSP430_ABS8: |
4077 | case BFD_RELOC_8: | |
4078 | bfd_put_8 (NULL, (bfd_vma) value, where); | |
4079 | break; | |
4080 | ||
4081 | case BFD_RELOC_MSP430X_ABS20_EXT_SRC: | |
4082 | case BFD_RELOC_MSP430X_PCR20_EXT_SRC: | |
4083 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 4); | |
38d77545 | 4084 | value >>= 16; |
13761a11 NC |
4085 | bfd_putl16 ((bfd_vma) (((value & 0xf) << 7) | insn), where); |
4086 | break; | |
4087 | ||
4088 | case BFD_RELOC_MSP430X_ABS20_ADR_SRC: | |
4089 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
38d77545 | 4090 | value >>= 16; |
13761a11 NC |
4091 | bfd_putl16 ((bfd_vma) (((value & 0xf) << 8) | insn), where); |
4092 | break; | |
4093 | ||
4094 | case BFD_RELOC_MSP430X_ABS20_EXT_ODST: | |
4095 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 6); | |
4096 | value >>= 16; | |
4097 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4098 | break; | |
4099 | ||
4100 | case BFD_RELOC_MSP430X_PCR20_CALL: | |
4101 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
4102 | value >>= 16; | |
4103 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4104 | break; | |
4105 | ||
4106 | case BFD_RELOC_MSP430X_ABS20_EXT_DST: | |
4107 | case BFD_RELOC_MSP430X_PCR20_EXT_DST: | |
4108 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 4); | |
4109 | value >>= 16; | |
4110 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4111 | break; | |
4112 | ||
4113 | case BFD_RELOC_MSP430X_PCR20_EXT_ODST: | |
4114 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 6); | |
4115 | value >>= 16; | |
4116 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
4117 | break; | |
4118 | ||
4119 | case BFD_RELOC_MSP430X_ABS20_ADR_DST: | |
4120 | bfd_putl16 ((bfd_vma) (value & 0xffff), where + 2); | |
4121 | value >>= 16; | |
4122 | bfd_putl16 ((bfd_vma) ((value & 0xf) | insn), where); | |
2469cfa2 | 4123 | break; |
38d77545 | 4124 | |
2469cfa2 NC |
4125 | default: |
4126 | as_fatal (_("line %d: unknown relocation type: 0x%x"), | |
4127 | fixp->fx_line, fixp->fx_r_type); | |
4128 | break; | |
4129 | } | |
4130 | } | |
4131 | else | |
4132 | { | |
4133 | fixp->fx_addnumber = value; | |
4134 | } | |
2469cfa2 NC |
4135 | } |
4136 | ||
13761a11 NC |
4137 | static bfd_boolean |
4138 | S_IS_GAS_LOCAL (symbolS * s) | |
4139 | { | |
4140 | const char * name; | |
4141 | unsigned int len; | |
4142 | ||
4143 | if (s == NULL) | |
4144 | return FALSE; | |
4145 | name = S_GET_NAME (s); | |
4146 | len = strlen (name) - 1; | |
38d77545 | 4147 | |
13761a11 NC |
4148 | return name[len] == 1 || name[len] == 2; |
4149 | } | |
4150 | ||
7be1c489 AM |
4151 | /* GAS will call this to generate a reloc, passing the resulting reloc |
4152 | to `bfd_install_relocation'. This currently works poorly, as | |
4153 | `bfd_install_relocation' often does the wrong thing, and instances of | |
4154 | `tc_gen_reloc' have been written to work around the problems, which | |
4155 | in turns makes it difficult to fix `bfd_install_relocation'. */ | |
2469cfa2 NC |
4156 | |
4157 | /* If while processing a fixup, a reloc really needs to be created | |
4158 | then it is done here. */ | |
4159 | ||
13761a11 | 4160 | arelent ** |
b18c562e | 4161 | tc_gen_reloc (asection * seg ATTRIBUTE_UNUSED, fixS * fixp) |
2469cfa2 | 4162 | { |
13761a11 NC |
4163 | static arelent * no_relocs = NULL; |
4164 | static arelent * relocs[MAX_RELOC_EXPANSION + 1]; | |
4165 | arelent *reloc; | |
2469cfa2 | 4166 | |
b18c562e | 4167 | reloc = xmalloc (sizeof (arelent)); |
2469cfa2 NC |
4168 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; |
4169 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
13761a11 | 4170 | |
2469cfa2 NC |
4171 | if (reloc->howto == (reloc_howto_type *) NULL) |
4172 | { | |
4173 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
4174 | _("reloc %d not supported by object file format"), | |
4175 | (int) fixp->fx_r_type); | |
13761a11 NC |
4176 | free (reloc); |
4177 | return & no_relocs; | |
4178 | } | |
4179 | ||
4180 | relocs[0] = reloc; | |
4181 | relocs[1] = NULL; | |
4182 | ||
4183 | if (fixp->fx_subsy | |
4184 | && S_GET_SEGMENT (fixp->fx_subsy) == absolute_section) | |
4185 | { | |
4186 | fixp->fx_offset -= S_GET_VALUE (fixp->fx_subsy); | |
4187 | fixp->fx_subsy = NULL; | |
2469cfa2 NC |
4188 | } |
4189 | ||
13761a11 NC |
4190 | if (fixp->fx_addsy && fixp->fx_subsy) |
4191 | { | |
4192 | asection *asec, *ssec; | |
4193 | ||
4194 | asec = S_GET_SEGMENT (fixp->fx_addsy); | |
4195 | ssec = S_GET_SEGMENT (fixp->fx_subsy); | |
4196 | ||
4197 | /* If we have a difference between two different, non-absolute symbols | |
4198 | we must generate two relocs (one for each symbol) and allow the | |
4199 | linker to resolve them - relaxation may change the distances between | |
4200 | symbols, even local symbols defined in the same section. | |
4201 | ||
4202 | Unfortunately we cannot do this with assembler generated local labels | |
4203 | because there can be multiple incarnations of the same label, with | |
4204 | exactly the same name, in any given section and the linker will have | |
4205 | no way to identify the correct one. Instead we just have to hope | |
4206 | that no relaxtion will occur between the local label and the other | |
4207 | symbol in the expression. | |
4208 | ||
4209 | Similarly we have to compute differences between symbols in the .eh_frame | |
4210 | section as the linker is not smart enough to apply relocations there | |
4211 | before attempting to process it. */ | |
4212 | if ((ssec != absolute_section || asec != absolute_section) | |
4213 | && (fixp->fx_addsy != fixp->fx_subsy) | |
4214 | && strcmp (ssec->name, ".eh_frame") != 0 | |
4215 | && ! S_IS_GAS_LOCAL (fixp->fx_addsy) | |
4216 | && ! S_IS_GAS_LOCAL (fixp->fx_subsy)) | |
4217 | { | |
4218 | arelent * reloc2 = xmalloc (sizeof * reloc); | |
2469cfa2 | 4219 | |
13761a11 NC |
4220 | relocs[0] = reloc2; |
4221 | relocs[1] = reloc; | |
2469cfa2 | 4222 | |
13761a11 NC |
4223 | reloc2->address = reloc->address; |
4224 | reloc2->howto = bfd_reloc_type_lookup (stdoutput, | |
4225 | BFD_RELOC_MSP430_SYM_DIFF); | |
4226 | reloc2->addend = - S_GET_VALUE (fixp->fx_subsy); | |
4227 | ||
4228 | if (ssec == absolute_section) | |
4229 | reloc2->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4230 | else | |
4231 | { | |
4232 | reloc2->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); | |
4233 | *reloc2->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_subsy); | |
4234 | } | |
4235 | ||
38d77545 | 4236 | reloc->addend = fixp->fx_offset; |
13761a11 NC |
4237 | if (asec == absolute_section) |
4238 | { | |
4239 | reloc->addend += S_GET_VALUE (fixp->fx_addsy); | |
4240 | reloc->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; | |
4241 | } | |
4242 | else | |
4243 | { | |
4244 | reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); | |
4245 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
4246 | } | |
4247 | ||
4248 | fixp->fx_pcrel = 0; | |
4249 | fixp->fx_done = 1; | |
4250 | return relocs; | |
4251 | } | |
4252 | else | |
4253 | { | |
4254 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
4255 | ||
4256 | reloc->addend = (S_GET_VALUE (fixp->fx_addsy) | |
4257 | - S_GET_VALUE (fixp->fx_subsy) + fixp->fx_offset); | |
4258 | ||
4259 | switch (fixp->fx_r_type) | |
4260 | { | |
4261 | case BFD_RELOC_8: | |
4262 | md_number_to_chars (fixpos, reloc->addend, 1); | |
4263 | break; | |
4264 | ||
4265 | case BFD_RELOC_16: | |
4266 | md_number_to_chars (fixpos, reloc->addend, 2); | |
4267 | break; | |
4268 | ||
4269 | case BFD_RELOC_24: | |
4270 | md_number_to_chars (fixpos, reloc->addend, 3); | |
4271 | break; | |
4272 | ||
4273 | case BFD_RELOC_32: | |
4274 | md_number_to_chars (fixpos, reloc->addend, 4); | |
4275 | break; | |
4276 | ||
4277 | default: | |
4278 | reloc->sym_ptr_ptr | |
4279 | = (asymbol **) bfd_abs_section_ptr->symbol_ptr_ptr; | |
4280 | return relocs; | |
4281 | } | |
4282 | ||
4283 | free (reloc); | |
4284 | return & no_relocs; | |
4285 | } | |
4286 | } | |
4287 | else | |
4288 | { | |
4289 | #if 0 | |
4290 | if (fixp->fx_r_type == BFD_RELOC_MSP430X_ABS16 | |
4291 | && S_GET_SEGMENT (fixp->fx_addsy) == absolute_section) | |
4292 | { | |
4293 | bfd_vma amount = S_GET_VALUE (fixp->fx_addsy); | |
4294 | char *fixpos = fixp->fx_where + fixp->fx_frag->fr_literal; | |
4295 | ||
4296 | md_number_to_chars (fixpos, amount, 2); | |
4297 | free (reloc); | |
4298 | return & no_relocs; | |
4299 | } | |
4300 | #endif | |
4301 | reloc->sym_ptr_ptr = xmalloc (sizeof (asymbol *)); | |
4302 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); | |
4303 | reloc->addend = fixp->fx_offset; | |
4304 | ||
4305 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
4306 | || fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
4307 | reloc->address = fixp->fx_offset; | |
4308 | } | |
4309 | ||
4310 | return relocs; | |
2469cfa2 NC |
4311 | } |
4312 | ||
b18c562e NC |
4313 | int |
4314 | md_estimate_size_before_relax (fragS * fragP ATTRIBUTE_UNUSED, | |
4315 | asection * segment_type ATTRIBUTE_UNUSED) | |
4316 | { | |
4317 | if (fragP->fr_symbol && S_GET_SEGMENT (fragP->fr_symbol) == segment_type) | |
4318 | { | |
4319 | /* This is a jump -> pcrel mode. Nothing to do much here. | |
4320 | Return value == 2. */ | |
4321 | fragP->fr_subtype = | |
4322 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_BITS10); | |
4323 | } | |
4324 | else if (fragP->fr_symbol) | |
4325 | { | |
4326 | /* Its got a segment, but its not ours. Even if fr_symbol is in | |
79cf5950 | 4327 | an absolute segment, we don't know a displacement until we link |
b18c562e NC |
4328 | object files. So it will always be long. This also applies to |
4329 | labels in a subsegment of current. Liker may relax it to short | |
4330 | jump later. Return value == 8. */ | |
4331 | fragP->fr_subtype = | |
4332 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_WORD); | |
4333 | } | |
4334 | else | |
4335 | { | |
4336 | /* We know the abs value. may be it is a jump to fixed address. | |
79cf5950 | 4337 | Impossible in our case, cause all constants already handled. */ |
b18c562e NC |
4338 | fragP->fr_subtype = |
4339 | ENCODE_RELAX (RELAX_LEN (fragP->fr_subtype), STATE_UNDEF); | |
4340 | } | |
2469cfa2 | 4341 | |
b18c562e NC |
4342 | return md_relax_table[fragP->fr_subtype].rlx_length; |
4343 | } | |
4344 | ||
4345 | void | |
4346 | md_convert_frag (bfd * abfd ATTRIBUTE_UNUSED, | |
4347 | asection * sec ATTRIBUTE_UNUSED, | |
4348 | fragS * fragP) | |
2469cfa2 | 4349 | { |
b18c562e NC |
4350 | char * where = 0; |
4351 | int rela = -1; | |
4352 | int i; | |
4353 | struct rcodes_s * cc = NULL; | |
4354 | struct hcodes_s * hc = NULL; | |
4355 | ||
4356 | switch (fragP->fr_subtype) | |
4357 | { | |
4358 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_BITS10): | |
4359 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_BITS10): | |
4360 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_BITS10): | |
4361 | /* We do not have to convert anything here. | |
4362 | Just apply a fix. */ | |
4363 | rela = BFD_RELOC_MSP430_10_PCREL; | |
4364 | break; | |
4365 | ||
4366 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_WORD): | |
4367 | case ENCODE_RELAX (STATE_UNCOND_BRANCH, STATE_UNDEF): | |
4368 | /* Convert uncond branch jmp lab -> br lab. */ | |
638d3803 | 4369 | if (target_is_430x ()) |
13761a11 | 4370 | cc = msp430x_rcodes + 7; |
638d3803 NC |
4371 | else |
4372 | cc = msp430_rcodes + 7; | |
b18c562e NC |
4373 | where = fragP->fr_literal + fragP->fr_fix; |
4374 | bfd_putl16 (cc->lop0, where); | |
4375 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4376 | fragP->fr_fix += 2; | |
4377 | break; | |
4378 | ||
4379 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_WORD): | |
4380 | case ENCODE_RELAX (STATE_SIMPLE_BRANCH, STATE_UNDEF): | |
4381 | { | |
4382 | /* Other simple branches. */ | |
4383 | int insn = bfd_getl16 (fragP->fr_opcode); | |
4384 | ||
4385 | insn &= 0xffff; | |
4386 | /* Find actual instruction. */ | |
638d3803 | 4387 | if (target_is_430x ()) |
13761a11 NC |
4388 | { |
4389 | for (i = 0; i < 7 && !cc; i++) | |
4390 | if (msp430x_rcodes[i].sop == insn) | |
4391 | cc = msp430x_rcodes + i; | |
4392 | } | |
4393 | else | |
4394 | { | |
4395 | for (i = 0; i < 7 && !cc; i++) | |
4396 | if (msp430_rcodes[i].sop == insn) | |
4397 | cc = & msp430_rcodes[i]; | |
4398 | } | |
4399 | ||
b18c562e NC |
4400 | if (!cc || !cc->name) |
4401 | as_fatal (_("internal inconsistency problem in %s: insn %04lx"), | |
4402 | __FUNCTION__, (long) insn); | |
4403 | where = fragP->fr_literal + fragP->fr_fix; | |
4404 | bfd_putl16 (cc->lop0, where); | |
4405 | bfd_putl16 (cc->lop1, where + 2); | |
4406 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4407 | fragP->fr_fix += 4; | |
4408 | } | |
4409 | break; | |
4410 | ||
4411 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_WORD): | |
4412 | case ENCODE_RELAX (STATE_NOOV_BRANCH, STATE_UNDEF): | |
638d3803 | 4413 | if (target_is_430x ()) |
13761a11 | 4414 | cc = msp430x_rcodes + 6; |
638d3803 NC |
4415 | else |
4416 | cc = msp430_rcodes + 6; | |
b18c562e NC |
4417 | where = fragP->fr_literal + fragP->fr_fix; |
4418 | bfd_putl16 (cc->lop0, where); | |
4419 | bfd_putl16 (cc->lop1, where + 2); | |
4420 | bfd_putl16 (cc->lop2, where + 4); | |
4421 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4422 | fragP->fr_fix += 6; | |
4423 | break; | |
4424 | ||
4425 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_BITS10): | |
4426 | { | |
4427 | int insn = bfd_getl16 (fragP->fr_opcode + 2); | |
4428 | ||
4429 | insn &= 0xffff; | |
638d3803 | 4430 | if (target_is_430x ()) |
13761a11 NC |
4431 | { |
4432 | for (i = 0; i < 4 && !hc; i++) | |
4433 | if (msp430x_hcodes[i].op1 == insn) | |
4434 | hc = msp430x_hcodes + i; | |
4435 | } | |
4436 | else | |
4437 | { | |
4438 | for (i = 0; i < 4 && !hc; i++) | |
4439 | if (msp430_hcodes[i].op1 == insn) | |
4440 | hc = &msp430_hcodes[i]; | |
4441 | } | |
b18c562e NC |
4442 | if (!hc || !hc->name) |
4443 | as_fatal (_("internal inconsistency problem in %s: ext. insn %04lx"), | |
4444 | __FUNCTION__, (long) insn); | |
4445 | rela = BFD_RELOC_MSP430_10_PCREL; | |
4446 | /* Apply a fix for a first label if necessary. | |
4447 | another fix will be applied to the next word of insn anyway. */ | |
4448 | if (hc->tlab == 2) | |
4449 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, | |
13761a11 | 4450 | fragP->fr_offset, TRUE, rela); |
b18c562e NC |
4451 | fragP->fr_fix += 2; |
4452 | } | |
4453 | ||
4454 | break; | |
4455 | ||
4456 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_WORD): | |
4457 | case ENCODE_RELAX (STATE_EMUL_BRANCH, STATE_UNDEF): | |
4458 | { | |
4459 | int insn = bfd_getl16 (fragP->fr_opcode + 2); | |
4460 | ||
4461 | insn &= 0xffff; | |
638d3803 | 4462 | if (target_is_430x ()) |
13761a11 NC |
4463 | { |
4464 | for (i = 0; i < 4 && !hc; i++) | |
4465 | if (msp430x_hcodes[i].op1 == insn) | |
4466 | hc = msp430x_hcodes + i; | |
4467 | } | |
4468 | else | |
4469 | { | |
4470 | for (i = 0; i < 4 && !hc; i++) | |
4471 | if (msp430_hcodes[i].op1 == insn) | |
4472 | hc = & msp430_hcodes[i]; | |
4473 | } | |
b18c562e NC |
4474 | if (!hc || !hc->name) |
4475 | as_fatal (_("internal inconsistency problem in %s: ext. insn %04lx"), | |
4476 | __FUNCTION__, (long) insn); | |
4477 | rela = BFD_RELOC_MSP430_RL_PCREL; | |
4478 | where = fragP->fr_literal + fragP->fr_fix; | |
4479 | bfd_putl16 (hc->lop0, where); | |
4480 | bfd_putl16 (hc->lop1, where + 2); | |
4481 | bfd_putl16 (hc->lop2, where + 4); | |
4482 | fragP->fr_fix += 6; | |
4483 | } | |
4484 | break; | |
4485 | ||
4486 | default: | |
4487 | as_fatal (_("internal inconsistency problem in %s: %lx"), | |
4488 | __FUNCTION__, (long) fragP->fr_subtype); | |
4489 | break; | |
4490 | } | |
4491 | ||
4492 | /* Now apply fix. */ | |
4493 | fix_new (fragP, fragP->fr_fix, 2, fragP->fr_symbol, | |
4494 | fragP->fr_offset, TRUE, rela); | |
4495 | /* Just fixed 2 bytes. */ | |
4496 | fragP->fr_fix += 2; | |
2469cfa2 NC |
4497 | } |
4498 | ||
b18c562e NC |
4499 | /* Relax fragment. Mostly stolen from hc11 and mcore |
4500 | which arches I think I know. */ | |
2469cfa2 | 4501 | |
b18c562e NC |
4502 | long |
4503 | msp430_relax_frag (segT seg ATTRIBUTE_UNUSED, fragS * fragP, | |
4504 | long stretch ATTRIBUTE_UNUSED) | |
2469cfa2 | 4505 | { |
b18c562e NC |
4506 | long growth; |
4507 | offsetT aim = 0; | |
4508 | symbolS *symbolP; | |
4509 | const relax_typeS *this_type; | |
4510 | const relax_typeS *start_type; | |
4511 | relax_substateT next_state; | |
4512 | relax_substateT this_state; | |
4513 | const relax_typeS *table = md_relax_table; | |
4514 | ||
4515 | /* Nothing to be done if the frag has already max size. */ | |
4516 | if (RELAX_STATE (fragP->fr_subtype) == STATE_UNDEF | |
4517 | || RELAX_STATE (fragP->fr_subtype) == STATE_WORD) | |
4518 | return 0; | |
4519 | ||
4520 | if (RELAX_STATE (fragP->fr_subtype) == STATE_BITS10) | |
4521 | { | |
4522 | symbolP = fragP->fr_symbol; | |
4523 | if (symbol_resolved_p (symbolP)) | |
4524 | as_fatal (_("internal inconsistency problem in %s: resolved symbol"), | |
4525 | __FUNCTION__); | |
4526 | /* We know the offset. calculate a distance. */ | |
4527 | aim = S_GET_VALUE (symbolP) - fragP->fr_address - fragP->fr_fix; | |
4528 | } | |
4529 | ||
77592908 DD |
4530 | if (!msp430_enable_relax) |
4531 | { | |
4532 | /* Relaxation is not enabled. So, make all jump as long ones | |
13761a11 | 4533 | by setting 'aim' to quite high value. */ |
77592908 DD |
4534 | aim = 0x7fff; |
4535 | } | |
38d77545 | 4536 | |
b18c562e NC |
4537 | this_state = fragP->fr_subtype; |
4538 | start_type = this_type = table + this_state; | |
4539 | ||
4540 | if (aim < 0) | |
4541 | { | |
4542 | /* Look backwards. */ | |
4543 | for (next_state = this_type->rlx_more; next_state;) | |
3e470ab5 | 4544 | if (aim >= this_type->rlx_backward || !this_type->rlx_backward) |
b18c562e NC |
4545 | next_state = 0; |
4546 | else | |
4547 | { | |
4548 | /* Grow to next state. */ | |
4549 | this_state = next_state; | |
4550 | this_type = table + this_state; | |
4551 | next_state = this_type->rlx_more; | |
4552 | } | |
4553 | } | |
4554 | else | |
4555 | { | |
4556 | /* Look forwards. */ | |
4557 | for (next_state = this_type->rlx_more; next_state;) | |
3e470ab5 | 4558 | if (aim <= this_type->rlx_forward || !this_type->rlx_forward) |
b18c562e NC |
4559 | next_state = 0; |
4560 | else | |
4561 | { | |
4562 | /* Grow to next state. */ | |
4563 | this_state = next_state; | |
4564 | this_type = table + this_state; | |
4565 | next_state = this_type->rlx_more; | |
4566 | } | |
4567 | } | |
4568 | ||
4569 | growth = this_type->rlx_length - start_type->rlx_length; | |
4570 | if (growth != 0) | |
4571 | fragP->fr_subtype = this_state; | |
4572 | return growth; | |
2469cfa2 | 4573 | } |
13761a11 NC |
4574 | |
4575 | /* Return FALSE if the fixup in fixp should be left alone and not | |
4576 | adjusted. We return FALSE here so that linker relaxation will | |
4577 | work. */ | |
4578 | ||
4579 | bfd_boolean | |
4580 | msp430_fix_adjustable (struct fix *fixp ATTRIBUTE_UNUSED) | |
4581 | { | |
4582 | /* If the symbol is in a non-code section then it should be OK. */ | |
4583 | if (fixp->fx_addsy | |
4584 | && ((S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_CODE) == 0)) | |
4585 | return TRUE; | |
38d77545 | 4586 | |
13761a11 NC |
4587 | return FALSE; |
4588 | } | |
4589 | ||
4590 | /* Set the contents of the .MSP430.attributes section. */ | |
4591 | ||
4592 | void | |
4593 | msp430_md_end (void) | |
4594 | { | |
2213f746 NC |
4595 | if (check_for_nop) |
4596 | as_warn ("assembly finished without a possibly needed NOP instruction"); | |
65d7bab5 | 4597 | |
13761a11 | 4598 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_ISA, |
638d3803 | 4599 | target_is_430x () ? 2 : 1); |
13761a11 NC |
4600 | |
4601 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_Code_Model, | |
4602 | large_model ? 2 : 1); | |
4603 | ||
4604 | bfd_elf_add_proc_attr_int (stdoutput, OFBA_MSPABI_Tag_Data_Model, | |
4605 | large_model ? 2 : 1); | |
4606 | } | |
4607 | ||
4608 | /* Returns FALSE if there is a msp430 specific reason why the | |
4609 | subtraction of two same-section symbols cannot be computed by | |
4610 | the assembler. */ | |
4611 | ||
4612 | bfd_boolean | |
4613 | msp430_allow_local_subtract (expressionS * left, | |
4614 | expressionS * right, | |
4615 | segT section) | |
4616 | { | |
4617 | /* If the symbols are not in a code section then they are OK. */ | |
4618 | if ((section->flags & SEC_CODE) == 0) | |
4619 | return TRUE; | |
4620 | ||
4621 | if (S_IS_GAS_LOCAL (left->X_add_symbol) || S_IS_GAS_LOCAL (right->X_add_symbol)) | |
4622 | return TRUE; | |
4623 | ||
4624 | if (left->X_add_symbol == right->X_add_symbol) | |
4625 | return TRUE; | |
4626 | ||
4627 | /* We have to assume that there may be instructions between the | |
4628 | two symbols and that relaxation may increase the distance between | |
4629 | them. */ | |
4630 | return FALSE; | |
4631 | } |