Mercurial > projects > ddmd
annotate dmd/backend/iasm.d @ 5:63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
author | dkoroskin <> |
---|---|
date | Tue, 08 Dec 2009 21:39:17 +0300 |
parents | d706d958e4e8 |
children | 2cc604139636 |
rev | line source |
---|---|
0 | 1 module dmd.backend.iasm; |
2 | |
3 import dmd.Dsymbol; | |
4 import dmd.LabelDsymbol; | |
5 import dmd.AsmStatement; | |
6 import dmd.Type; | |
7 import dmd.Scope; | |
8 import dmd.Loc; | |
9 import dmd.Token; | |
10 import dmd.TOK; | |
11 import dmd.Identifier; | |
12 import dmd.Declaration; | |
13 import dmd.VarDeclaration; | |
14 import dmd.EnumMember; | |
15 import dmd.ExpInitializer; | |
16 import dmd.Expression; | |
17 import dmd.IdentifierExp; | |
18 import dmd.StringExp; | |
19 import dmd.Global; | |
20 import dmd.WANT; | |
21 import dmd.STC; | |
22 import dmd.TY; | |
23 import dmd.EnumUtils; | |
24 import dmd.TupleDeclaration; | |
25 import dmd.VarExp; | |
26 import dmd.Id; | |
27 import dmd.FuncExp; | |
28 import dmd.DotIdExp; | |
29 | |
30 import dmd.backend.code; | |
31 import dmd.backend.Srcpos; | |
32 import dmd.backend.FL; | |
33 import dmd.backend.Util; | |
34 import dmd.backend.regm_t; | |
35 import dmd.backend.Config; | |
36 import dmd.backend.targ_types; | |
37 import dmd.backend.elem; | |
38 import dmd.Util; | |
39 | |
40 import std.stdio : writef, writefln; | |
41 import std.string : toStringz; | |
42 import std.algorithm : min; | |
43 | |
4 | 44 import core.memory; |
45 | |
46 import core.stdc.stdio : printf; | |
0 | 47 import core.stdc.string : strlen; |
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
48 import core.stdc.stdlib : realloc; |
0 | 49 import core.stdc.limits; |
50 | |
51 import std.bitmanip; | |
52 | |
53 alias int[10] jmp_buf; | |
54 | |
55 extern (C) extern | |
56 { | |
57 int setjmp(jmp_buf env); | |
58 void longjmp(jmp_buf env, int value); | |
59 | |
60 void cod3_set386(); | |
61 code* genlinnum(code*, Srcpos); | |
62 code *code_calloc(); | |
63 | |
64 __gshared int BPRM; | |
65 } | |
66 | |
67 const(char)*[ASMTK.ASMTKmax] apszAsmtk = [ | |
68 "__LOCAL_SIZE", | |
69 "dword".ptr, | |
70 "even".ptr, | |
71 "far".ptr, | |
72 "naked".ptr, | |
73 "near".ptr, | |
74 "ptr".ptr, | |
75 "qword".ptr, | |
76 "seg".ptr, | |
77 "word".ptr, | |
78 ]; | |
79 | |
80 extern (Pascal) extern { | |
81 code* cat(code* c1 , code* c2 ); | |
82 } | |
83 | |
84 extern (C++) extern | |
85 { | |
86 void init_optab(); | |
87 OP* asm_op_lookup(const(char)* s); | |
88 const(char)* asm_opstr(OP* pop); | |
89 int binary(const(char)* p , const(char)** tab, int high); | |
90 } | |
91 | |
92 static ubyte asm_TKlbra_seen = false; | |
93 | |
94 struct REG | |
95 { | |
96 char regstr[6]; | |
97 ubyte val; | |
98 opflag_t ty; | |
99 } | |
100 | |
101 OP* asm_op_lookup(string s) | |
102 { | |
103 return asm_op_lookup(toStringz(s)); | |
104 } | |
105 | |
106 // For amod (3 bits) | |
107 enum ASM_MODIFIERS : ubyte | |
108 { | |
109 _normal, // Normal register value | |
110 _rseg, // Segment registers | |
111 _rspecial, // Special registers | |
112 _addr16, // 16 bit address | |
113 _addr32, // 32 bit address | |
114 _fn16, // 16 bit function call | |
115 _fn32, // 32 bit function call | |
116 _flbl // Label | |
117 } | |
118 | |
119 mixin(BringToCurrentScope!(ASM_MODIFIERS)); | |
120 | |
121 // For aopty (3 bits) | |
122 enum ASM_OPERAND_TYPE : ubyte | |
123 { | |
124 _reg, // _r8, _r16, _r32 | |
125 _m, // _m8, _m16, _m32, _m48 | |
126 _imm, // _imm8, _imm16, _imm32 | |
127 _rel, // _rel8, _rel16, _rel32 | |
128 _mnoi, // _m1616, _m1632 | |
129 _p, // _p1616, _p1632 | |
130 _rm, // _rm8, _rm16, _rm32 | |
131 _float // Floating point operand, look at cRegmask for the | |
132 // actual size | |
133 } | |
134 | |
135 mixin(BringToCurrentScope!(ASM_OPERAND_TYPE)); | |
136 | |
137 /* Register definitions */ | |
138 | |
139 enum AX = 0; | |
140 enum CX = 1; | |
141 enum DX = 2; | |
142 enum BX = 3; | |
143 enum SP = 4; | |
144 enum BP = 5; | |
145 enum SI = 6; | |
146 enum DI = 7; | |
147 | |
148 enum ES = 9; | |
149 enum PSW = 10; | |
150 enum STACK = 11; // top of stack | |
151 enum MEM = 12; // memory | |
152 enum OTHER = 13; // other things | |
153 enum ST0 = 14; // 8087 top of stack register | |
154 enum ST01 = 15; // top two 8087 registers; for complex types | |
155 | |
156 enum NOREG = 100; // no register | |
157 | |
158 enum AL = 0; | |
159 enum CL = 1; | |
160 enum DL = 2; | |
161 enum BL = 3; | |
162 enum AH = 4; | |
163 enum CH = 5; | |
164 enum DH = 6; | |
165 enum BH = 7; | |
166 | |
167 enum mAX = 1; | |
168 enum mCX = 2; | |
169 enum mDX = 4; | |
170 enum mBX = 8; | |
171 enum mSP = 0x10; | |
172 enum mBP = 0x20; | |
173 enum mSI = 0x40; | |
174 enum mDI = 0x80; | |
175 enum mES = (1 << ES); // 0x200 | |
176 enum mPSW = (1 << PSW); // 0x400 | |
177 | |
178 enum mSTACK = (1 << STACK); // 0x800 | |
179 enum mMEM = (1 << MEM); // 0x1000 | |
180 enum mOTHER = (1 << OTHER); // 0x2000 | |
181 | |
182 enum mST0 = (1 << ST0); // 0x4000 | |
183 enum mST01 = (1 << ST01); // 0x8000 | |
184 | |
185 version (XXX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS | |
186 // To support positional independent code, | |
187 // must be able to remove BX from available registers | |
188 ///extern regm_t ALLREGS; | |
189 ///#define ALLREGS_INIT (mAX|mBX|mCX|mDX|mSI|mDI) | |
190 ///#define ALLREGS_INIT_PIC (mAX|mCX|mDX|mSI|mDI) | |
191 ///extern regm_t BYTEREGS; | |
192 ///#define BYTEREGS_INIT (mAX|mBX|mCX|mDX) | |
193 ///#define BYTEREGS_INIT_PIC (mAX|mCX|mDX) | |
194 } else { | |
195 enum ALLREGS = (mAX|mBX|mCX|mDX|mSI|mDI); | |
196 ///#define ALLREGS_INIT ALLREGS | |
197 ///#undef BYTEREGS | |
198 ///#define BYTEREGS (mAX|mBX|mCX|mDX) | |
199 } | |
200 | |
201 //#define NPTRSIZE tysize[TYnptr] | |
202 enum NPTRSIZE = 4; | |
203 | |
204 uint ADDFWAIT() { return 0; } | |
205 | |
206 enum I16 = 0; // no 16 bit code for D | |
207 enum I32 = (NPTRSIZE == 4); | |
208 enum I64 = (NPTRSIZE == 8); // true if generating 64 bit code | |
209 | |
210 // For uRegmask (6 bits) | |
211 | |
212 // uRegmask flags when aopty == _float | |
213 enum _rst = 0x1; | |
214 enum _rsti = 0x2; | |
215 enum _64 = 0x4; | |
216 enum _80 = 0x8; | |
217 enum _128 = 0x40; | |
218 enum _112 = 0x10; | |
219 enum _224 = 0x20; | |
220 | |
221 ushort CONSTRUCT_FLAGS(ushort uSizemask, ubyte aopty, ubyte amod, ushort uRegmask ) { | |
222 return cast(ushort)( (uSizemask) | (aopty) << 4 | (amod) << 7 | (uRegmask) << 10); | |
223 } | |
224 | |
225 // _seg register values (amod == _rseg) | |
226 // | |
227 enum _ds = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x01 ); | |
228 enum _es = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x02 ); | |
229 enum _ss = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x04 ); | |
230 enum _fs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x08 ); | |
231 enum _gs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x10 ); | |
232 enum _cs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x20 ); | |
233 | |
234 // | |
235 // _special register values | |
236 // | |
237 enum _crn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x01 ); // CRn register (0,2,3) | |
238 enum _drn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x02 ); // DRn register (0-3,6-7) | |
239 enum _trn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x04 ); // TRn register (3-7) | |
240 enum _mm = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x08 ); // MMn register (0-7) | |
241 enum _xmm = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x10 ); // XMMn register (0-7) | |
242 | |
243 // | |
244 // Default register values | |
245 // | |
246 enum _al = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x01 ); // AL register | |
247 enum _ax = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x02 ); // AX register | |
248 enum _eax = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x04 ); // EAX register | |
249 enum _dx = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x08 ); // DX register | |
250 enum _cl = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x10 ); // CL register | |
251 | |
252 enum _rplus_r = 0x20; | |
253 //#define _plus_r CONSTRUCT_FLAGS( 0, 0, 0, _rplus_r ) | |
254 // Add the register to the opcode (no mod r/m) | |
255 | |
256 ubyte ASM_GET_uSizemask(uint us) { | |
257 return ((us) & 0x0F); | |
258 } | |
259 | |
260 ASM_OPERAND_TYPE ASM_GET_aopty(uint us) { | |
261 return cast(ASM_OPERAND_TYPE)(((us) & 0x70) >> 4); | |
262 } | |
263 | |
264 ASM_MODIFIERS ASM_GET_amod(uint us) { | |
265 return (cast(ASM_MODIFIERS)(((us) & 0x380) >> 7)); | |
266 } | |
267 | |
268 ubyte ASM_GET_uRegmask(uint us) { | |
269 return (((us) & 0xFC00) >> 10); | |
270 } | |
271 | |
272 enum _st = CONSTRUCT_FLAGS( 0, _float, 0, _rst ); // stack register 0 | |
273 enum _m112 = CONSTRUCT_FLAGS( 0, _m, 0, _112 ); | |
274 enum _m224 = CONSTRUCT_FLAGS( 0, _m, 0, _224 ); | |
275 enum _m512 = _m224; | |
276 enum _sti = CONSTRUCT_FLAGS( 0, _float, 0, _rsti ); | |
277 | |
278 REG regFp = { "ST", 0, _st }; | |
279 | |
280 REG[8] aregFp = [ | |
281 { "ST(0)", 0, _sti }, | |
282 { "ST(1)", 1, _sti }, | |
283 { "ST(2)", 2, _sti }, | |
284 { "ST(3)", 3, _sti }, | |
285 { "ST(4)", 4, _sti }, | |
286 { "ST(5)", 5, _sti }, | |
287 { "ST(6)", 6, _sti }, | |
288 { "ST(7)", 7, _sti } | |
289 ]; | |
290 | |
291 // For uSizemask (4 bits) | |
292 enum _8 = 0x1; | |
293 enum _16 = 0x2; | |
294 enum _32 = 0x4; | |
295 enum _48 = 0x8; | |
296 enum _anysize = (_8 | _16 | _32 | _48 ); | |
297 | |
298 enum _modrm = 0x10; | |
299 | |
300 //// This is for when the reg field of modregrm specifies which instruction it is | |
301 enum NUM_MASK = 0x7; | |
302 //#define _0 (0x0 | _modrm) // insure that some _modrm bit is set | |
303 //#define _1 0x1 // with _0 | |
304 //#define _2 0x2 | |
305 //#define _3 0x3 | |
306 //#define _4 0x4 | |
307 //#define _5 0x5 | |
308 //#define _6 0x6 | |
309 //#define _7 0x7 | |
310 // | |
311 //#define _modrm 0x10 | |
312 // | |
313 //#define _r _modrm | |
314 //#define _cb _modrm | |
315 //#define _cw _modrm | |
316 //#define _cd _modrm | |
317 //#define _cp _modrm | |
318 //#define _ib 0 | |
319 //#define _iw 0 | |
320 //#define _id 0 | |
321 //#define _rb 0 | |
322 //#define _rw 0 | |
323 //#define _rd 0 | |
324 enum _16_bit = 0x20; | |
325 enum _32_bit = 0x40; | |
326 enum _I386 = 0x80; // opcode is only for 386 and later | |
327 enum _16_bit_addr = 0x100; | |
328 enum _32_bit_addr = 0x200; | |
329 enum _fwait = 0x400; // Add an FWAIT prior to the instruction opcode | |
330 enum _nfwait = 0x800; // Do not add an FWAIT prior to the instruction | |
331 | |
332 enum MOD_MASK = 0xF000; // Mod mask | |
333 enum _modsi = 0x1000; // Instruction modifies SI | |
334 enum _moddx = 0x2000; // Instruction modifies DX | |
335 enum _mod2 = 0x3000; // Instruction modifies second operand | |
336 enum _modax = 0x4000; // Instruction modifies AX | |
337 enum _modnot1 = 0x5000; // Instruction does not modify first operand | |
338 enum _modaxdx = 0x6000; // instruction modifies AX and DX | |
339 enum _moddi = 0x7000; // Instruction modifies DI | |
340 enum _modsidi = 0x8000; // Instruction modifies SI and DI | |
341 enum _modcx = 0x9000; // Instruction modifies CX | |
342 enum _modes = 0xa000; // Instruction modifies ES | |
343 enum _modall = 0xb000; // Instruction modifies all register values | |
344 enum _modsiax = 0xc000; // Instruction modifies AX and SI | |
345 enum _modsinot1 = 0xd000; // Instruction modifies SI and not first param | |
346 | |
347 ///////////////////////////////////////////////// | |
348 // Operand flags - usOp1, usOp2, usOp3 | |
349 // | |
350 | |
351 alias ushort opflag_t; | |
352 | |
353 // Operand flags for normal opcodes | |
354 | |
355 enum _r8 = CONSTRUCT_FLAGS( _8, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
356 enum _r16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
357 enum _r32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
358 enum _m8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
359 enum _m16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
360 enum _m32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
361 enum _m48 = CONSTRUCT_FLAGS( _48, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
362 enum _m64 = CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
363 enum _m128 = CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
364 enum _rm8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0 ); | |
365 enum _rm16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0 ); | |
366 enum _rm32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0); | |
367 enum _r32m16 = CONSTRUCT_FLAGS(_32|_16, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0); | |
368 enum _imm8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0 ); | |
369 enum _imm16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
370 enum _imm32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
371 enum _rel8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
372 enum _rel16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
373 enum _rel32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
374 enum _p1616 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._p, ASM_MODIFIERS._normal, 0); | |
375 enum _m1616 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._mnoi, ASM_MODIFIERS._normal, 0); | |
376 enum _p1632 = CONSTRUCT_FLAGS(_48, ASM_OPERAND_TYPE._p, ASM_MODIFIERS._normal, 0 ); | |
377 enum _m1632 = CONSTRUCT_FLAGS(_48, ASM_OPERAND_TYPE._mnoi, ASM_MODIFIERS._normal, 0); | |
378 enum _special = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0 ); | |
379 enum _seg = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rseg, 0 ); | |
380 enum _a16 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._addr16, 0 ); | |
381 enum _a32 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._addr32, 0 ); | |
382 enum _f16 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._fn16, 0); | |
383 // Near function pointer | |
384 enum _f32 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._fn32, 0); | |
385 // Far function pointer | |
386 enum _lbl = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._flbl, 0 ); | |
387 // Label (in current function) | |
388 | |
389 enum _mmm32 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _32); | |
390 enum _mmm64 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _64); | |
391 enum _mmm128 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _128); | |
392 | |
393 enum _xmm_m32 = CONSTRUCT_FLAGS( _32, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
394 enum _xmm_m64 =CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
395 enum _xmm_m128 =CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
396 | |
397 enum _moffs8 = (_rel8); | |
398 enum _moffs16 = (_rel16 ); | |
399 enum _moffs32 = (_rel32 ); | |
400 | |
401 //////////////////////////////////////////////////////////////////// | |
402 // Operand flags for floating point opcodes are all just aliases for | |
403 // normal opcode variants and only asm_determine_operator_flags should | |
404 // need to care. | |
405 // | |
406 enum _fm80 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _80 ); | |
407 enum _fm64 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _64 ); | |
408 enum _fm128 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _128 ); | |
409 enum _fanysize = (_64 | _80 | _112 | _224); | |
410 | |
411 enum _AL =0; | |
412 enum _AH =4; | |
413 enum _AX =0; | |
414 enum _EAX =0; | |
415 enum _BL =3; | |
416 enum _BH =7; | |
417 enum _BX =3; | |
418 enum _EBX =3; | |
419 enum _CL =1; | |
420 enum _CH =5; | |
421 enum _CX =1; | |
422 enum _ECX =1; | |
423 enum _DL =2; | |
424 enum _DH =6; | |
425 enum _DX =2; | |
426 enum _EDX =2; | |
427 enum _BP =5; | |
428 enum _EBP =5; | |
429 enum _SP =4; | |
430 enum _ESP =4; | |
431 enum _DI =7; | |
432 enum _EDI =7; | |
433 enum _SI =6; | |
434 enum _ESI =6; | |
435 enum _ES =0; | |
436 enum _CS =1; | |
437 enum _SS =2; | |
438 enum _DS =3; | |
439 enum _GS =5; | |
440 enum _FS =4; | |
441 | |
442 enum ASM = 0x36; // string of asm bytes, actually an SS: opcode | |
443 enum ASM_END = 0xffff; // special opcode meaning end of table | |
444 | |
445 struct PTRNTAB0 | |
446 { | |
447 uint usOpcode; | |
448 // #define ASM_END 0xffff // special opcode meaning end of table | |
449 ushort usFlags; | |
450 } | |
451 | |
452 struct PTRNTAB1 | |
453 { | |
454 uint usOpcode; | |
455 ushort usFlags; | |
456 opflag_t usOp1; | |
457 } | |
458 | |
459 struct PTRNTAB2 | |
460 { | |
461 uint usOpcode; | |
462 ushort usFlags; | |
463 opflag_t usOp1; | |
464 opflag_t usOp2; | |
465 } | |
466 | |
467 struct PTRNTAB3 | |
468 { | |
469 uint usOpcode; | |
470 ushort usFlags; | |
471 opflag_t usOp1; | |
472 opflag_t usOp2; | |
473 opflag_t usOp3; | |
474 } | |
475 | |
476 union PTRNTAB | |
477 { | |
478 PTRNTAB0 *pptb0; | |
479 PTRNTAB1 *pptb1; | |
480 PTRNTAB2 *pptb2; | |
481 PTRNTAB3 *pptb3; | |
482 } | |
483 | |
484 struct OP | |
485 { | |
486 ubyte usNumops; | |
487 PTRNTAB ptb; | |
488 } | |
489 | |
490 enum ASM_JUMPTYPE | |
491 { | |
492 ASM_JUMPTYPE_UNSPECIFIED, | |
493 ASM_JUMPTYPE_SHORT, | |
494 ASM_JUMPTYPE_NEAR, | |
495 ASM_JUMPTYPE_FAR | |
496 } // ajt | |
497 | |
498 mixin(BringToCurrentScope!(ASM_JUMPTYPE)); | |
499 | |
500 struct OPND | |
501 { | |
502 REG* base; // if plain register | |
503 REG* pregDisp1; // if [register1] | |
504 REG* pregDisp2; | |
505 REG* segreg; // if segment override | |
506 char indirect = 0; // if had a '*' or '.' | |
507 char bOffset = 0; // if 'offset' keyword | |
508 char bSeg = 0; // if 'segment' keyword | |
509 char bPtr = 0; // if 'ptr' keyword | |
510 uint uchMultiplier; // register multiplier; valid values are 0,1,2,4,8 | |
511 opflag_t usFlags; | |
512 Dsymbol s; | |
513 int disp; | |
514 real real_ = 0; | |
515 Type ptype; | |
516 ASM_JUMPTYPE ajt; | |
517 } | |
518 | |
519 struct ASM_STATE | |
520 { | |
521 ubyte ucItype; // Instruction type | |
522 Loc loc; | |
523 ubyte bInit; | |
524 LabelDsymbol psDollar; | |
525 Dsymbol psLocalsize; | |
526 jmp_buf env; | |
527 ubyte bReturnax; | |
528 AsmStatement statement; | |
529 Scope sc; | |
530 } | |
531 | |
532 enum IT | |
533 { | |
534 ITprefix = 0x10, // special prefix | |
535 ITjump = 0x20, // jump instructions CALL, Jxx and LOOPxx | |
536 ITimmed = 0x30, // value of an immediate operand controls | |
537 // code generation | |
538 ITopt = 0x40, // not all operands are required | |
539 ITshift = 0x50, // rotate and shift instructions | |
540 ITfloat = 0x60, // floating point coprocessor instructions | |
541 ITdata = 0x70, // DB, DW, DD, DQ, DT pseudo-ops | |
542 ITaddr = 0x80, // DA (define addresss) pseudo-op | |
543 ITMASK = 0xF0, | |
544 ITSIZE = 0x0F, // mask for size | |
545 } | |
546 | |
547 alias IT.ITprefix ITprefix; | |
548 alias IT.ITjump ITjump; | |
549 alias IT.ITimmed ITimmed; | |
550 alias IT.ITopt ITopt; | |
551 alias IT.ITshift ITshift; | |
552 alias IT.ITfloat ITfloat; | |
553 alias IT.ITdata ITdata; | |
554 alias IT.ITaddr ITaddr; | |
555 alias IT.ITMASK ITMASK; | |
556 alias IT.ITSIZE ITSIZE; | |
557 | |
558 __gshared ASM_STATE asmstate; | |
559 __gshared Token* asmtok; | |
560 __gshared TOK tok_value; | |
561 | |
562 // Additional tokens for the inline assembler | |
563 enum ASMTK | |
564 { | |
565 ASMTKlocalsize = TOKMAX + 1, | |
566 ASMTKdword, | |
567 ASMTKeven, | |
568 ASMTKfar, | |
569 ASMTKnaked, | |
570 ASMTKnear, | |
571 ASMTKptr, | |
572 ASMTKqword, | |
573 ASMTKseg, | |
574 ASMTKword, | |
575 ASMTKmax = ASMTKword - (TOK.TOKMAX + 1) + 1 | |
576 } | |
577 | |
578 mixin(BringToCurrentScope!(ASMTK)); | |
579 | |
580 enum OP_DB | |
581 { | |
582 ///version (SCPP) { | |
583 /// // These are the number of bytes | |
584 /// OPdb = 1, | |
585 /// OPdw = 2, | |
586 /// OPdd = 4, | |
587 /// OPdq = 8, | |
588 /// OPdt = 10, | |
589 /// OPdf = 4, | |
590 /// OPde = 10, | |
591 /// OPds = 2, | |
592 /// OPdi = 4, | |
593 /// OPdl = 8, | |
594 ///} | |
595 ///version (MARS) { | |
596 // Integral types | |
597 OPdb, | |
598 OPds, | |
599 OPdi, | |
600 OPdl, | |
601 | |
602 // Float types | |
603 OPdf, | |
604 OPdd, | |
605 OPde, | |
606 | |
607 // Deprecated | |
608 OPdw = OPds, | |
609 OPdq = OPdl, | |
610 OPdt = OPde, | |
611 ///} | |
612 } | |
613 | |
614 OPND* opnd_calloc() | |
615 { | |
616 return new OPND(); | |
617 } | |
618 | |
619 void opnd_free(OPND* o) | |
620 { | |
621 delete o; | |
622 } | |
623 | |
624 /****************************** | |
625 * Convert assembly instruction into a code, and append | |
626 * it to the code generated for this block. | |
627 */ | |
628 | |
629 code* asm_emit(Loc loc, uint usNumops, PTRNTAB ptb, OP* pop, OPND* popnd1, OPND* popnd2, OPND* popnd3) | |
630 { | |
631 debug { | |
632 ubyte auchOpcode[16]; | |
633 uint usIdx = 0; | |
634 void emit(ubyte op) { | |
635 auchOpcode[usIdx++] = op; | |
636 } | |
637 } else { | |
638 void emit(ubyte op) {} | |
639 } | |
640 Identifier id; | |
641 // ushort us; | |
642 ubyte* puc; | |
643 uint usDefaultseg; | |
644 code* pc = null; | |
645 OPND* popndTmp; | |
646 ASM_OPERAND_TYPE aoptyTmp; | |
647 ushort uSizemaskTmp; | |
648 REG* pregSegment; | |
649 code* pcPrefix = null; | |
650 | |
651 uint uSizemask1 = 0; | |
652 uint uSizemask2 = 0; | |
653 uint uSizemask3 = 0; | |
654 | |
655 //ASM_OPERAND_TYPE aopty1 = ASM_OPERAND_TYPE._reg , aopty2 = 0, aopty3 = 0; | |
656 ASM_MODIFIERS amod1 = ASM_MODIFIERS._normal; | |
657 ASM_MODIFIERS amod2 = ASM_MODIFIERS._normal; | |
658 ASM_MODIFIERS amod3 = ASM_MODIFIERS._normal; | |
659 | |
660 uint uRegmask1 = 0; | |
661 uint uRegmask2 = 0; | |
662 uint uRegmask3 = 0; | |
663 | |
664 uint uSizemaskTable1 = 0; | |
665 uint uSizemaskTable2 = 0; | |
666 uint uSizemaskTable3 = 0; | |
667 | |
668 ASM_OPERAND_TYPE aoptyTable1 = ASM_OPERAND_TYPE._reg; | |
669 ASM_OPERAND_TYPE aoptyTable2 = ASM_OPERAND_TYPE._reg; | |
670 ASM_OPERAND_TYPE aoptyTable3 = ASM_OPERAND_TYPE._reg; | |
671 | |
672 ASM_MODIFIERS amodTable1 = ASM_MODIFIERS._normal; | |
673 ASM_MODIFIERS amodTable2 = ASM_MODIFIERS._normal; | |
674 ASM_MODIFIERS amodTable3 = ASM_MODIFIERS._normal; | |
675 | |
676 uint uRegmaskTable1 = 0; | |
677 uint uRegmaskTable2 = 0; | |
678 uint uRegmaskTable3 = 0; | |
679 | |
680 pc = code_calloc(); | |
681 pc.Iflags |= CF.CFpsw; // assume we want to keep the flags | |
682 | |
683 if (popnd1) | |
684 { | |
685 uSizemask1 = ASM_GET_uSizemask(popnd1.usFlags); | |
686 //aopty1 = ASM_GET_aopty(popnd1.usFlags); | |
687 amod1 = ASM_GET_amod(popnd1.usFlags); | |
688 uRegmask1 = ASM_GET_uRegmask(popnd1.usFlags); | |
689 | |
690 uSizemaskTable1 = ASM_GET_uSizemask(ptb.pptb1.usOp1); | |
691 aoptyTable1 = ASM_GET_aopty(ptb.pptb1.usOp1); | |
692 amodTable1 = ASM_GET_amod(ptb.pptb1.usOp1); | |
693 uRegmaskTable1 = ASM_GET_uRegmask(ptb.pptb1.usOp1); | |
694 | |
695 } | |
696 | |
697 if (popnd2) | |
698 { | |
699 static if (false) { | |
700 printf("\nasm_emit:\nop: "); | |
701 asm_output_flags(popnd2.usFlags); | |
702 printf("\ntb: "); | |
703 asm_output_flags(ptb.pptb2.usOp2); | |
704 printf("\n"); | |
705 } | |
706 uSizemask2 = ASM_GET_uSizemask(popnd2.usFlags); | |
707 //aopty2 = ASM_GET_aopty(popnd2.usFlags); | |
708 amod2 = ASM_GET_amod(popnd2.usFlags); | |
709 uRegmask2 = ASM_GET_uRegmask(popnd2.usFlags); | |
710 | |
711 uSizemaskTable2 = ASM_GET_uSizemask(ptb.pptb2.usOp2); | |
712 aoptyTable2 = ASM_GET_aopty(ptb.pptb2.usOp2); | |
713 amodTable2 = ASM_GET_amod(ptb.pptb2.usOp2); | |
714 uRegmaskTable2 = ASM_GET_uRegmask(ptb.pptb2.usOp2); | |
715 } | |
716 if (popnd3) | |
717 { | |
718 uSizemask3 = ASM_GET_uSizemask(popnd3.usFlags); | |
719 //aopty3 = ASM_GET_aopty(popnd3.usFlags); | |
720 amod3 = ASM_GET_amod(popnd3.usFlags); | |
721 uRegmask3 = ASM_GET_uRegmask(popnd3.usFlags); | |
722 | |
723 uSizemaskTable3 = ASM_GET_uSizemask(ptb.pptb3.usOp3); | |
724 aoptyTable3 = ASM_GET_aopty(ptb.pptb3.usOp3); | |
725 amodTable3 = ASM_GET_amod(ptb.pptb3.usOp3); | |
726 uRegmaskTable3 = ASM_GET_uRegmask(ptb.pptb3.usOp3); | |
727 } | |
728 | |
729 asmstate.statement.regs |= asm_modify_regs(ptb, popnd1, popnd2); | |
730 | |
731 if (!I32 && ptb.pptb0.usFlags & _I386) | |
732 { | |
733 switch (usNumops) | |
734 { | |
735 case 0: | |
736 break; | |
737 | |
738 case 1: | |
739 if (popnd1 && popnd1.s) | |
740 { | |
741 L386_WARNING: | |
742 id = popnd1.s.ident; | |
743 L386_WARNING2: | |
744 if (config.target_cpu < TARGET.TARGET_80386) | |
745 { | |
746 // Reference to %s caused a 386 instruction to be generated | |
747 //warerr(WM_386_op, id.toChars()); | |
748 } | |
749 } | |
750 break; | |
751 | |
752 case 2: | |
753 case 3: // The third operand is always an ASM_OPERAND_TYPE._imm | |
754 if (popnd1 && popnd1.s) | |
755 goto L386_WARNING; | |
756 if (popnd2 && popnd2.s) | |
757 { | |
758 id = popnd2.s.ident; | |
759 goto L386_WARNING2; | |
760 } | |
761 break; | |
762 } | |
763 } | |
764 | |
765 switch (usNumops) | |
766 { | |
767 case 0: | |
768 if ((I32 && (ptb.pptb0.usFlags & _16_bit)) || (!I32 && (ptb.pptb0.usFlags & _32_bit))) | |
769 { | |
770 emit(0x66); | |
771 pc.Iflags |= CF.CFopsize; | |
772 } | |
773 break; | |
774 | |
775 // 3 and 2 are the same because the third operand is always | |
776 // an immediate and does not affect operation size | |
777 case 3: | |
778 case 2: | |
779 if ((I32 && | |
780 (amod2 == ASM_MODIFIERS._addr16 || | |
781 (uSizemaskTable2 & _16 && aoptyTable2 == ASM_OPERAND_TYPE._rel) || | |
782 (uSizemaskTable2 & _32 && aoptyTable2 == ASM_OPERAND_TYPE._mnoi) || | |
783 (ptb.pptb2.usFlags & _16_bit_addr) | |
784 ) | |
785 ) || | |
786 (!I32 && | |
787 (amod2 == ASM_MODIFIERS._addr32 || | |
788 (uSizemaskTable2 & _32 && aoptyTable2 == ASM_OPERAND_TYPE._rel) || | |
789 (uSizemaskTable2 & _48 && aoptyTable2 == ASM_OPERAND_TYPE._mnoi) || | |
790 (ptb.pptb2.usFlags & _32_bit_addr))) | |
791 ) | |
792 { | |
793 emit(0x67); | |
794 pc.Iflags |= CF.CFaddrsize; | |
795 | |
796 if (I32) | |
797 amod2 = ASM_MODIFIERS._addr16; | |
798 else | |
799 amod2 = ASM_MODIFIERS._addr32; | |
800 | |
801 popnd2.usFlags &= ~CONSTRUCT_FLAGS(0,0,7,0); | |
802 popnd2.usFlags |= CONSTRUCT_FLAGS(0,0,amod2,0); | |
803 } | |
804 | |
805 | |
806 /* Fall through, operand 1 controls the opsize, but the | |
807 address size can be in either operand 1 or operand 2, | |
808 hence the extra checking the flags tested for SHOULD | |
809 be mutex on operand 1 and operand 2 because there is | |
810 only one MOD R/M byte | |
811 */ | |
812 | |
813 case 1: | |
814 if ((I32 && | |
815 (amod1 == ASM_MODIFIERS._addr16 || | |
816 (uSizemaskTable1 & _16 && aoptyTable1 == ASM_OPERAND_TYPE._rel) || | |
817 (uSizemaskTable1 & _32 && aoptyTable1 == ASM_OPERAND_TYPE._mnoi) || | |
818 (ptb.pptb1.usFlags & _16_bit_addr))) || | |
819 (!I32 && | |
820 (amod1 == ASM_MODIFIERS._addr32 || | |
821 (uSizemaskTable1 & _32 && aoptyTable1 == ASM_OPERAND_TYPE._rel) || | |
822 (uSizemaskTable1 & _48 && aoptyTable1 == ASM_OPERAND_TYPE._mnoi) || | |
823 (ptb.pptb1.usFlags & _32_bit_addr)))) | |
824 { | |
825 emit(0x67); // address size prefix | |
826 pc.Iflags |= CF.CFaddrsize; | |
827 if (I32) | |
828 amod1 = ASM_MODIFIERS._addr16; | |
829 else | |
830 amod1 = ASM_MODIFIERS._addr32; | |
831 popnd1.usFlags &= ~CONSTRUCT_FLAGS(0,0,7,0); | |
832 popnd1.usFlags |= CONSTRUCT_FLAGS(0,0,amod1,0); | |
833 } | |
834 | |
835 // If the size of the operand is unknown, assume that it is | |
836 // the default size | |
837 if ((I32 && (ptb.pptb0.usFlags & _16_bit)) || | |
838 (!I32 && (ptb.pptb0.usFlags & _32_bit))) | |
839 { | |
840 //if (asmstate.ucItype != ITjump) | |
841 { emit(0x66); | |
842 pc.Iflags |= CF.CFopsize; | |
843 } | |
844 } | |
845 if (((pregSegment = (popndTmp = popnd1).segreg) != null) || | |
846 ((popndTmp = popnd2) != null && | |
847 (pregSegment = popndTmp.segreg) != null) | |
848 ) | |
849 { | |
850 if ((popndTmp.pregDisp1 && | |
851 popndTmp.pregDisp1.val == _BP) || | |
852 popndTmp.pregDisp2 && | |
853 popndTmp.pregDisp2.val == _BP) | |
854 usDefaultseg = _SS; | |
855 else | |
856 usDefaultseg = _DS; | |
857 if (pregSegment.val != usDefaultseg) | |
858 switch (pregSegment.val) { | |
859 case _CS: | |
860 emit(0x2e); | |
861 pc.Iflags |= CF.CFcs; | |
862 break; | |
863 case _SS: | |
864 emit(0x36); | |
865 pc.Iflags |= CF.CFss; | |
866 break; | |
867 case _DS: | |
868 emit(0x3e); | |
869 pc.Iflags |= CF.CFds; | |
870 break; | |
871 case _ES: | |
872 emit(0x26); | |
873 pc.Iflags |= CF.CFes; | |
874 break; | |
875 case _FS: | |
876 emit(0x64); | |
877 pc.Iflags |= CF.CFfs; | |
878 break; | |
879 case _GS: | |
880 emit(0x65); | |
881 pc.Iflags |= CF.CFgs; | |
882 break; | |
883 default: | |
884 assert(0); | |
885 } | |
886 } | |
887 break; | |
888 } | |
889 uint usOpcode = ptb.pptb0.usOpcode; | |
890 | |
891 if ((usOpcode & 0xFFFFFF00) == 0x660F3A00 || // SSE4 | |
892 (usOpcode & 0xFFFFFF00) == 0x660F3800) // SSE4 | |
893 { | |
894 pc.Iflags |= CF.CFopsize; | |
895 pc.Iop = 0x0F; | |
896 pc.Iop2 = (usOpcode >> 8) & 0xFF; | |
897 pc.Iop3 = usOpcode & 0xFF; | |
898 goto L3; | |
899 } | |
900 switch (usOpcode & 0xFF0000) | |
901 { | |
902 case 0: | |
903 break; | |
904 | |
905 case 0x660000: | |
906 pc.Iflags |= CF.CFopsize; | |
907 usOpcode &= 0xFFFF; | |
908 break; | |
909 | |
910 case 0xF20000: // REPNE | |
911 case 0xF30000: // REP/REPE | |
912 // BUG: What if there's an address size prefix or segment | |
913 // override prefix? Must the REP be adjacent to the rest | |
914 // of the opcode? | |
915 pcPrefix = code_calloc(); | |
916 pcPrefix.Iop = cast(ubyte)(usOpcode >> 16); | |
917 usOpcode &= 0xFFFF; | |
918 break; | |
919 | |
920 case 0x0F0000: // an AMD instruction | |
921 puc = (cast(ubyte*) &usOpcode); | |
922 if (puc[1] != 0x0F) // if not AMD instruction 0x0F0F | |
923 goto L4; | |
924 emit(puc[2]); | |
925 emit(puc[1]); | |
926 emit(puc[0]); | |
927 pc.Iop = puc[2]; | |
928 pc.Iop2 = puc[1]; | |
929 pc.IEVint2() = puc[0]; | |
930 pc.IFL2 = FL.FLconst; | |
931 goto L3; | |
932 | |
933 default: | |
934 puc = (cast(ubyte*) &usOpcode); | |
935 L4: | |
936 emit(puc[2]); | |
937 emit(puc[1]); | |
938 emit(puc[0]); | |
939 pc.Iop = puc[2]; | |
940 pc.Iop2 = puc[1]; | |
941 pc.Irm = puc[0]; | |
942 goto L3; | |
943 } | |
944 if (usOpcode & 0xff00) | |
945 { | |
946 puc = (cast(ubyte*) &(usOpcode)); | |
947 emit(puc[1]); | |
948 emit(puc[0]); | |
949 pc.Iop = puc[1]; | |
950 if (pc.Iop == 0x0f) | |
951 pc.Iop2 = puc[0]; | |
952 else | |
953 { | |
954 if (usOpcode == 0xDFE0) // FSTSW AX | |
955 { pc.Irm = puc[0]; | |
956 goto L2; | |
957 } | |
958 if (asmstate.ucItype == IT.ITfloat) | |
959 pc.Irm = puc[0]; | |
960 else | |
961 { | |
962 pc.IEVint2() = puc[0]; | |
963 pc.IFL2 = FL.FLconst; | |
964 } | |
965 } | |
966 } | |
967 else | |
968 { | |
969 emit(cast(ubyte)usOpcode); | |
970 pc.Iop = cast(ubyte)usOpcode; | |
971 } | |
972 L3: ; | |
973 | |
974 // If CALL, Jxx or LOOPx to a symbolic location | |
975 if (/*asmstate.ucItype == ITjump &&*/ | |
976 popnd1 && popnd1.s && popnd1.s.isLabel()) | |
977 { | |
978 Dsymbol s = popnd1.s; | |
979 if (s == asmstate.psDollar) | |
980 { | |
981 pc.IFL2 = FL.FLconst; | |
982 if (uSizemaskTable1 & (_8 | _16)) | |
983 pc.IEVint2() = popnd1.disp; | |
984 else if (uSizemaskTable1 & _32) | |
985 pc.IEVpointer2() = cast(targ_size_t) popnd1.disp; | |
986 } | |
987 else | |
988 { | |
989 LabelDsymbol label = s.isLabel(); | |
990 if (label) | |
991 { | |
992 if ((pc.Iop & 0xF0) == 0x70) | |
993 pc.Iflags |= CF.CFjmp16; | |
994 if (usNumops == 1) | |
995 { | |
996 pc.IFL2 = FL.FLblock; | |
997 pc.IEVlsym2() = label; | |
998 } | |
999 else | |
1000 { | |
1001 pc.IFL1 = FL.FLblock; | |
1002 pc.IEVlsym1() = label; | |
1003 } | |
1004 } | |
1005 } | |
1006 } | |
1007 | |
1008 switch (usNumops) | |
1009 { | |
1010 case 0: | |
1011 break; | |
1012 | |
1013 case 1: | |
1014 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
1015 amodTable1 == ASM_MODIFIERS._normal && (uRegmaskTable1 & _rplus_r))) | |
1016 { | |
1017 if (asmstate.ucItype == IT.ITfloat) | |
1018 pc.Irm += popnd1.base.val; | |
1019 else if (pc.Iop == 0x0f) | |
1020 pc.Iop2 += popnd1.base.val; | |
1021 else | |
1022 pc.Iop += popnd1.base.val; | |
1023 debug { | |
1024 auchOpcode[usIdx-1] += popnd1.base.val; | |
1025 } | |
1026 } | |
1027 else | |
1028 { | |
1029 asm_make_modrm_byte( | |
1030 ///debug { | |
1031 auchOpcode, &usIdx, | |
1032 ///} | |
1033 pc, | |
1034 ptb.pptb1.usFlags, | |
1035 popnd1, null); | |
1036 } | |
1037 | |
1038 popndTmp = popnd1; | |
1039 aoptyTmp = aoptyTable1; | |
1040 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
1041 L1: | |
1042 if (aoptyTmp == ASM_OPERAND_TYPE._imm) | |
1043 { | |
1044 Declaration d = popndTmp.s ? popndTmp.s.isDeclaration() : null; | |
1045 if (popndTmp.bSeg) | |
1046 { | |
1047 if (!(d && d.isDataseg())) | |
1048 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
1049 } | |
1050 switch (uSizemaskTmp) | |
1051 { | |
1052 case _8: | |
1053 case _16: | |
1054 case _32: | |
1055 if (popndTmp.s is asmstate.psLocalsize) | |
1056 { | |
1057 pc.IFL2 = FL.FLlocalsize; | |
1058 pc.IEVdsym2() = null; | |
1059 pc.Iflags |= CF.CFoff; | |
1060 pc.IEVoffset2() = popndTmp.disp; | |
1061 } | |
1062 else if (d) | |
1063 { | |
1064 static if (false) { | |
1065 if ((pc.IFL2 = d.Sfl) == 0) | |
1066 pc.IFL2 = FL.FLdsymbol; | |
1067 } else { | |
1068 pc.IFL2 = FL.FLdsymbol; | |
1069 } | |
1070 pc.Iflags &= ~(CF.CFseg | CF.CFoff); | |
1071 if (popndTmp.bSeg) | |
1072 pc.Iflags |= CF.CFseg; | |
1073 else | |
1074 pc.Iflags |= CF.CFoff; | |
1075 | |
1076 pc.IEVoffset2() = popndTmp.disp; | |
1077 pc.IEVdsym2() = d; | |
1078 } | |
1079 else | |
1080 { | |
1081 pc.IEVint2() = popndTmp.disp; | |
1082 pc.IFL2 = FL.FLconst; | |
1083 } | |
1084 break; | |
1085 } | |
1086 } | |
1087 | |
1088 break; | |
1089 case 2: | |
1090 // | |
1091 // If there are two immediate operands then | |
1092 // | |
1093 if (aoptyTable1 == ASM_OPERAND_TYPE._imm && aoptyTable2 == ASM_OPERAND_TYPE._imm) | |
1094 { | |
1095 pc.IEVint1() = popnd1.disp; | |
1096 pc.IFL1 = FL.FLconst; | |
1097 pc.IEVint2() = popnd2.disp; | |
1098 pc.IFL2 = FL.FLconst; | |
1099 break; | |
1100 } | |
1101 if (aoptyTable2 == ASM_OPERAND_TYPE._m || | |
1102 aoptyTable2 == ASM_OPERAND_TYPE._rel || | |
1103 // If not MMX register (_mm) or XMM register (_xmm) | |
1104 (amodTable1 == ASM_MODIFIERS._rspecial && !(uRegmaskTable1 & (0x08 | 0x10)) && !uSizemaskTable1) || | |
1105 aoptyTable2 == ASM_OPERAND_TYPE._rm || | |
1106 (popnd1.usFlags == _r32 && popnd2.usFlags == _xmm) || | |
1107 (popnd1.usFlags == _r32 && popnd2.usFlags == _mm)) | |
1108 { | |
1109 static if (false) { | |
1110 printf("test4 %d,%d,%d,%d\n", | |
1111 (aoptyTable2 == ASM_OPERAND_TYPE._m), | |
1112 (aoptyTable2 == ASM_OPERAND_TYPE._rel), | |
1113 (amodTable1 == ASM_MODIFIERS._rspecial && !(uRegmaskTable1 & (0x08 | 0x10))), | |
1114 (aoptyTable2 == ASM_OPERAND_TYPE._rm) | |
1115 ); | |
1116 printf("usOpcode = %x\n", usOpcode); | |
1117 } | |
1118 if (ptb.pptb0.usOpcode == 0x0F7E || // MOVD _rm32,_mm | |
1119 ptb.pptb0.usOpcode == 0x660F7E // MOVD _rm32,_xmm | |
1120 ) | |
1121 { | |
1122 asm_make_modrm_byte( | |
1123 ///debug { | |
1124 auchOpcode, &usIdx, | |
1125 ///} | |
1126 pc, | |
1127 ptb.pptb1.usFlags, | |
1128 popnd1, popnd2); | |
1129 } | |
1130 else | |
1131 { | |
1132 asm_make_modrm_byte( | |
1133 ///debug { | |
1134 auchOpcode, &usIdx, | |
1135 ///} | |
1136 pc, | |
1137 ptb.pptb1.usFlags, | |
1138 popnd2, popnd1); | |
1139 } | |
1140 popndTmp = popnd1; | |
1141 aoptyTmp = aoptyTable1; | |
1142 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
1143 } | |
1144 else | |
1145 { | |
1146 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
1147 amodTable1 == ASM_MODIFIERS._normal && | |
1148 (uRegmaskTable1 & _rplus_r))) | |
1149 { | |
1150 if (asmstate.ucItype == IT.ITfloat) | |
1151 pc.Irm += popnd1.base.val; | |
1152 else if (pc.Iop == 0x0f) | |
1153 pc.Iop2 += popnd1.base.val; | |
1154 else | |
1155 pc.Iop += popnd1.base.val; | |
1156 debug { | |
1157 auchOpcode[usIdx-1] += popnd1.base.val; | |
1158 } | |
1159 } | |
1160 else if (((aoptyTable2 == ASM_OPERAND_TYPE._reg || aoptyTable2 == ASM_OPERAND_TYPE._float) && | |
1161 amodTable2 == ASM_MODIFIERS._normal && | |
1162 (uRegmaskTable2 & _rplus_r))) | |
1163 { | |
1164 if (asmstate.ucItype == IT.ITfloat) | |
1165 pc.Irm += popnd2.base.val; | |
1166 else if (pc.Iop == 0x0f) | |
1167 pc.Iop2 += popnd2.base.val; | |
1168 else | |
1169 pc.Iop += popnd2.base.val; | |
1170 debug { | |
1171 auchOpcode[usIdx-1] += popnd2.base.val; | |
1172 } | |
1173 } | |
1174 else if (ptb.pptb0.usOpcode == 0xF30FD6 || | |
1175 ptb.pptb0.usOpcode == 0x0F12 || | |
1176 ptb.pptb0.usOpcode == 0x0F16 || | |
1177 ptb.pptb0.usOpcode == 0x660F50 || | |
1178 ptb.pptb0.usOpcode == 0x0F50 || | |
1179 ptb.pptb0.usOpcode == 0x660FD7 || | |
1180 ptb.pptb0.usOpcode == 0x0FD7) | |
1181 { | |
1182 asm_make_modrm_byte( | |
1183 ///debug { | |
1184 auchOpcode, &usIdx, | |
1185 ///} | |
1186 pc, | |
1187 ptb.pptb1.usFlags, | |
1188 popnd2, popnd1); | |
1189 } | |
1190 else | |
1191 { | |
1192 asm_make_modrm_byte( | |
1193 ///debug { | |
1194 auchOpcode, &usIdx, | |
1195 ///} | |
1196 pc, | |
1197 ptb.pptb1.usFlags, | |
1198 popnd1, popnd2); | |
1199 | |
1200 } | |
1201 if (aoptyTable1 == ASM_OPERAND_TYPE._imm) | |
1202 { | |
1203 popndTmp = popnd1; | |
1204 aoptyTmp = aoptyTable1; | |
1205 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
1206 } | |
1207 else | |
1208 { | |
1209 popndTmp = popnd2; | |
1210 aoptyTmp = aoptyTable2; | |
1211 uSizemaskTmp = cast(ushort)uSizemaskTable2; | |
1212 } | |
1213 } | |
1214 goto L1; | |
1215 | |
1216 case 3: | |
1217 if (aoptyTable2 == ASM_OPERAND_TYPE._m || aoptyTable2 == ASM_OPERAND_TYPE._rm || | |
1218 usOpcode == 0x0FC5) // PEXTRW | |
1219 { | |
1220 asm_make_modrm_byte( | |
1221 ///debug { | |
1222 auchOpcode, &usIdx, | |
1223 ///} | |
1224 pc, | |
1225 ptb.pptb1.usFlags, | |
1226 popnd2, popnd1); | |
1227 popndTmp = popnd3; | |
1228 aoptyTmp = aoptyTable3; | |
1229 uSizemaskTmp = cast(ushort)uSizemaskTable3; | |
1230 } else { | |
1231 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
1232 amodTable1 == ASM_MODIFIERS._normal && | |
1233 (uRegmaskTable1 &_rplus_r))) | |
1234 { | |
1235 if (asmstate.ucItype == IT.ITfloat) | |
1236 pc.Irm += popnd1.base.val; | |
1237 else if (pc.Iop == 0x0f) | |
1238 pc.Iop2 += popnd1.base.val; | |
1239 else | |
1240 pc.Iop += popnd1.base.val; | |
1241 debug { | |
1242 auchOpcode[usIdx-1] += popnd1.base.val; | |
1243 } | |
1244 } | |
1245 else if (((aoptyTable2 == ASM_OPERAND_TYPE._reg || aoptyTable2 == ASM_OPERAND_TYPE._float) && | |
1246 amodTable2 == ASM_MODIFIERS._normal && | |
1247 (uRegmaskTable2 &_rplus_r))) | |
1248 { | |
1249 if (asmstate.ucItype == IT.ITfloat) | |
1250 pc.Irm += popnd1.base.val; | |
1251 else if (pc.Iop == 0x0f) | |
1252 pc.Iop2 += popnd1.base.val; | |
1253 else | |
1254 pc.Iop += popnd2.base.val; | |
1255 debug { | |
1256 auchOpcode[usIdx-1] += popnd2.base.val; | |
1257 } | |
1258 } | |
1259 else | |
1260 asm_make_modrm_byte( | |
1261 ///debug { | |
1262 auchOpcode, &usIdx, | |
1263 ///} | |
1264 pc, | |
1265 ptb.pptb1.usFlags, | |
1266 popnd1, popnd2); | |
1267 | |
1268 popndTmp = popnd3; | |
1269 aoptyTmp = aoptyTable3; | |
1270 uSizemaskTmp = cast(ushort)uSizemaskTable3; | |
1271 } | |
1272 goto L1; | |
1273 } | |
1274 L2: | |
1275 | |
1276 if ((pc.Iop & 0xF8) == 0xD8 && | |
1277 ADDFWAIT() && | |
1278 !(ptb.pptb0.usFlags & _nfwait)) | |
1279 pc.Iflags |= CF.CFwait; | |
1280 else if ((ptb.pptb0.usFlags & _fwait) && | |
1281 config.target_cpu >= TARGET.TARGET_80386) | |
1282 pc.Iflags |= CF.CFwait; | |
1283 | |
1284 debug { | |
1285 if (debuga) | |
1286 { | |
1287 uint u; | |
1288 | |
1289 for (u = 0; u < usIdx; u++) | |
1290 printf(" %02X", auchOpcode[u]); | |
1291 | |
1292 printf("\t%s\t", asm_opstr(pop)); | |
1293 if (popnd1) | |
1294 asm_output_popnd(popnd1); | |
1295 if (popnd2) { | |
1296 printf(","); | |
1297 asm_output_popnd(popnd2); | |
1298 } | |
1299 if (popnd3) { | |
1300 printf(","); | |
1301 asm_output_popnd(popnd3); | |
1302 } | |
1303 printf("\n"); | |
1304 } | |
1305 } | |
1306 | |
1307 pc = cat(pcPrefix, pc); | |
1308 pc = asm_genloc(loc, pc); | |
1309 return pc; | |
1310 } | |
1311 | |
1312 void asm_token_trans(Token* tok) | |
1313 { | |
1314 tok_value = TOK.TOKeof; | |
1315 | |
1316 if (tok) | |
1317 { | |
1318 tok_value = tok.value; | |
1319 if (tok_value == TOK.TOKidentifier) | |
1320 { | |
1321 string id = tok.ident.toChars(); | |
1322 size_t len = id.length; | |
1323 if (len < 20) | |
1324 { | |
1325 ASMTK asmtk = cast(ASMTK) binary(toStringz(id), apszAsmtk.ptr, ASMTK.ASMTKmax); | |
1326 if (cast(int)asmtk >= 0) | |
1327 tok_value = cast(TOK)(asmtk + TOK.TOKMAX + 1); | |
1328 } | |
1329 } | |
1330 } | |
1331 } | |
1332 | |
1333 void asm_token() | |
1334 { | |
1335 if (asmtok) | |
1336 asmtok = asmtok.next; | |
1337 | |
1338 asm_token_trans(asmtok); | |
1339 } | |
1340 | |
1341 | |
1342 /********************** | |
1343 * If c is a power of 2, return that power else -1. | |
1344 */ | |
1345 | |
1346 int ispow2(ulong c) | |
1347 { | |
1348 int i; | |
1349 | |
1350 if (c == 0 || (c & (c - 1))) | |
1351 i = -1; | |
1352 else | |
1353 for (i = 0; c >>= 1; i++) { | |
1354 ; | |
1355 } | |
1356 | |
1357 return i; | |
1358 } | |
1359 | |
1360 // Error numbers | |
1361 enum ASMERRMSGS | |
1362 { | |
1363 EM_bad_float_op, | |
1364 EM_bad_addr_mode, | |
1365 EM_align, | |
1366 EM_opcode_exp, | |
1367 EM_prefix, | |
1368 EM_eol, | |
1369 EM_bad_operand, | |
1370 EM_bad_integral_operand, | |
1371 EM_ident_exp, | |
1372 EM_not_struct, | |
1373 EM_nops_expected, | |
1374 EM_bad_op, | |
1375 EM_const_init, | |
1376 EM_undefined, | |
1377 EM_pointer, | |
1378 EM_colon, | |
1379 EM_rbra, | |
1380 EM_rpar, | |
1381 EM_ptr_exp, | |
1382 EM_num, | |
1383 EM_float, | |
1384 EM_char, | |
1385 EM_label_expected, | |
1386 EM_uplevel, | |
1387 EM_type_as_operand, | |
1388 } | |
1389 | |
1390 mixin(BringToCurrentScope!(ASMERRMSGS)); | |
1391 | |
1392 string[] asmerrmsgs = | |
1393 [ | |
1394 "unknown operand for floating point instruction", | |
1395 "bad addr mode", | |
1396 "align %d must be a power of 2", | |
1397 "opcode expected, not %s", | |
1398 "prefix", | |
1399 "end of instruction", | |
1400 "bad operand", | |
1401 "bad integral operand", | |
1402 "identifier expected", | |
1403 "not struct", | |
1404 "nops expected", | |
1405 "bad type/size of operands '%s'", | |
1406 "constant initializer expected", | |
1407 "undefined identifier '%s'", | |
1408 "pointer", | |
1409 "colon", | |
1410 "] expected instead of '%s'", | |
1411 ") expected instead of '%s'", | |
1412 "ptr expected", | |
1413 "integer expected", | |
1414 "floating point expected", | |
1415 "character is truncated", | |
1416 "label expected", | |
1417 "uplevel nested reference to variable %s", | |
1418 "cannot use type %s as an operand" | |
1419 ]; | |
1420 | |
1421 void asmerr(T...)(int errnum, T t) | |
1422 { | |
1423 string format = asmerrmsgs[errnum]; | |
1424 asmerr(format, t); | |
1425 } | |
1426 | |
1427 void asmerr(T...)(string format, T t) | |
1428 { | |
1429 string p = asmstate.loc.toChars(); | |
1430 if (p.length != 0) | |
1431 writef("%s: ", p); | |
1432 | |
1433 writefln(format, t); | |
1434 | |
1435 longjmp(asmstate.env,1); | |
1436 } | |
1437 | |
1438 PTRNTAB asm_classify(OP* pop, OPND* popnd1, OPND* popnd2, OPND* popnd3, uint* pusNumops) | |
1439 { | |
1440 uint usNumops; | |
1441 uint usActual; | |
1442 PTRNTAB ptbRet = { null }; | |
1443 opflag_t usFlags1 = 0 ; | |
1444 opflag_t usFlags2 = 0; | |
1445 opflag_t usFlags3 = 0; | |
1446 | |
1447 PTRNTAB1 *pptb1; | |
1448 PTRNTAB2 *pptb2; | |
1449 PTRNTAB3 *pptb3; | |
1450 | |
1451 char bFake = false; | |
1452 | |
1453 ubyte bMatch1, bMatch2, bMatch3, bRetry = false; | |
1454 | |
1455 // How many arguments are there? the parser is strictly left to right | |
1456 // so this should work. | |
1457 | |
1458 if (!popnd1) | |
1459 usNumops = 0; | |
1460 else | |
1461 { | |
1462 popnd1.usFlags = usFlags1 = asm_determine_operand_flags(popnd1); | |
1463 if (!popnd2) | |
1464 usNumops = 1; | |
1465 else | |
1466 { | |
1467 popnd2.usFlags = usFlags2 = asm_determine_operand_flags(popnd2); | |
1468 if (!popnd3) | |
1469 usNumops = 2; | |
1470 else | |
1471 { | |
1472 popnd3.usFlags = usFlags3 = asm_determine_operand_flags(popnd3); | |
1473 usNumops = 3; | |
1474 } | |
1475 } | |
1476 } | |
1477 | |
1478 // Now check to insure that the number of operands is correct | |
1479 usActual = (pop.usNumops & IT.ITSIZE); | |
1480 if (usActual != usNumops && asmstate.ucItype != IT.ITopt && | |
1481 asmstate.ucItype != IT.ITfloat) | |
1482 { | |
1483 PARAM_ERROR: | |
1484 asmerr(ASMERRMSGS.EM_nops_expected, usActual, asm_opstr(pop), usNumops); | |
1485 } | |
1486 *pusNumops = usNumops; | |
1487 // | |
1488 // The number of arguments matches, now check to find the opcode | |
1489 // in the associated opcode table | |
1490 // | |
1491 RETRY: | |
1492 //printf("usActual = %d\n", usActual); | |
1493 switch (usActual) | |
1494 { | |
1495 case 0: | |
1496 ptbRet = pop.ptb ; | |
1497 goto RETURN_IT; | |
1498 | |
1499 case 1: | |
1500 //printf("usFlags1 = "); asm_output_flags(usFlags1); printf("\n"); | |
1501 for (pptb1 = pop.ptb.pptb1; pptb1.usOpcode != ASM_END; | |
1502 pptb1++) | |
1503 { | |
1504 //printf("table = "); asm_output_flags(pptb1.usOp1); printf("\n"); | |
1505 bMatch1 = asm_match_flags(usFlags1, pptb1.usOp1); | |
1506 if (bMatch1) | |
1507 { if (pptb1.usOpcode == 0x68 && | |
1508 I32 && | |
1509 pptb1.usOp1 == _imm16 | |
1510 ) | |
1511 // Don't match PUSH imm16 in 32 bit code | |
1512 continue; | |
1513 break; | |
1514 } | |
1515 if ((asmstate.ucItype == IT.ITimmed) && | |
1516 asm_match_flags(usFlags1, | |
1517 CONSTRUCT_FLAGS(_8 | _16 | _32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, | |
1518 0)) && | |
1519 popnd1.disp == pptb1.usFlags) | |
1520 break; | |
1521 if ((asmstate.ucItype == IT.ITopt || | |
1522 asmstate.ucItype == IT.ITfloat) && | |
1523 !usNumops && | |
1524 !pptb1.usOp1) | |
1525 { | |
1526 if (usNumops > 1) | |
1527 goto PARAM_ERROR; | |
1528 break; | |
1529 } | |
1530 } | |
1531 if (pptb1.usOpcode == ASM_END) | |
1532 { | |
1533 debug { | |
1534 if (debuga) | |
1535 { | |
1536 printf("\t%s\t", asm_opstr(pop)); | |
1537 if (popnd1) | |
1538 asm_output_popnd(popnd1); | |
1539 if (popnd2) { | |
1540 printf(","); | |
1541 asm_output_popnd(popnd2); | |
1542 } | |
1543 if (popnd3) { | |
1544 printf(","); | |
1545 asm_output_popnd(popnd3); | |
1546 } | |
1547 printf("\n"); | |
1548 | |
1549 printf("OPCODE mism = "); | |
1550 if (popnd1) | |
1551 asm_output_flags(popnd1.usFlags); | |
1552 else | |
1553 printf("NONE"); | |
1554 printf("\n"); | |
1555 } | |
1556 } | |
1557 TYPE_SIZE_ERROR: | |
1558 if (popnd1 && ASM_GET_aopty(popnd1.usFlags) != ASM_OPERAND_TYPE._reg) | |
1559 { | |
1560 usFlags1 = popnd1.usFlags |= _anysize; | |
1561 if (asmstate.ucItype == IT.ITjump) | |
1562 { | |
1563 if (bRetry && popnd1.s && !popnd1.s.isLabel()) | |
1564 { | |
1565 asmerr(ASMERRMSGS.EM_label_expected, popnd1.s.toChars()); | |
1566 } | |
1567 | |
1568 popnd1.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, _fanysize); | |
1569 } | |
1570 } | |
1571 if (popnd2 && ASM_GET_aopty(popnd2.usFlags) != ASM_OPERAND_TYPE._reg) { | |
1572 usFlags2 = popnd2.usFlags |= (_anysize); | |
1573 if (asmstate.ucItype == IT.ITjump) | |
1574 popnd2.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, | |
1575 _fanysize); | |
1576 } | |
1577 if (popnd3 && ASM_GET_aopty(popnd3.usFlags) != ASM_OPERAND_TYPE._reg) { | |
1578 usFlags3 = popnd3.usFlags |= (_anysize); | |
1579 if (asmstate.ucItype == IT.ITjump) | |
1580 popnd3.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, | |
1581 _fanysize); | |
1582 } | |
1583 if (bRetry) | |
1584 { | |
1585 asmerr(ASMERRMSGS.EM_bad_op, fromStringz(asm_opstr(pop))); // illegal type/size of operands | |
1586 } | |
1587 bRetry = true; | |
1588 goto RETRY; | |
1589 } | |
1590 ptbRet.pptb1 = pptb1; | |
1591 goto RETURN_IT; | |
1592 | |
1593 case 2: | |
1594 //printf("usFlags1 = "); asm_output_flags(usFlags1); printf(" "); | |
1595 //printf("usFlags2 = "); asm_output_flags(usFlags2); printf("\n"); | |
1596 for (pptb2 = pop.ptb.pptb2; | |
1597 pptb2.usOpcode != ASM_END; | |
1598 pptb2++) | |
1599 { | |
1600 //printf("table1 = "); asm_output_flags(pptb2.usOp1); printf(" "); | |
1601 //printf("table2 = "); asm_output_flags(pptb2.usOp2); printf("\n"); | |
1602 bMatch1 = asm_match_flags(usFlags1, pptb2.usOp1); | |
1603 bMatch2 = asm_match_flags(usFlags2, pptb2.usOp2); | |
1604 //printf("match1 = %d, match2 = %d\n",bMatch1,bMatch2); | |
1605 if (bMatch1 && bMatch2) { | |
1606 | |
1607 //printf("match\n"); | |
1608 | |
1609 // OK, if they both match and the first op in the table is not AL | |
1610 // or size of 8 and the second is immediate 8, | |
1611 // then check to see if the constant | |
1612 // is a signed 8 bit constant. If so, then do not match, otherwise match | |
1613 // | |
1614 if (!bRetry && | |
1615 !((ASM_GET_uSizemask(pptb2.usOp1) & _8) || | |
1616 (ASM_GET_uRegmask(pptb2.usOp1) & _al)) && | |
1617 (ASM_GET_aopty(pptb2.usOp2) == ASM_OPERAND_TYPE._imm) && | |
1618 (ASM_GET_uSizemask(pptb2.usOp2) & _8)) | |
1619 { | |
1620 if (popnd2.disp <= char.max) | |
1621 break; | |
1622 else | |
1623 bFake = true; | |
1624 } | |
1625 else | |
1626 break; | |
1627 } | |
1628 if (asmstate.ucItype == IT.ITopt || asmstate.ucItype == IT.ITfloat) | |
1629 { | |
1630 switch (usNumops) | |
1631 { | |
1632 case 0: | |
1633 if (!pptb2.usOp1) | |
1634 goto Lfound2; | |
1635 break; | |
1636 case 1: | |
1637 if (bMatch1 && !pptb2.usOp2) | |
1638 goto Lfound2; | |
1639 break; | |
1640 case 2: | |
1641 break; | |
1642 default: | |
1643 goto PARAM_ERROR; | |
1644 } | |
1645 } | |
1646 static if (false) { | |
1647 if (asmstate.ucItype == IT.ITshift && | |
1648 !pptb2.usOp2 && | |
1649 bMatch1 && popnd2.disp == 1 && | |
1650 asm_match_flags(usFlags2, | |
1651 CONSTRUCT_FLAGS(_8|_16|_32, ASM_OPERAND_TYPE._imm,ASM_MODIFIERS._normal,0)) | |
1652 ) | |
1653 { | |
1654 break; | |
1655 } | |
1656 } | |
1657 } | |
1658 Lfound2: | |
1659 if (pptb2.usOpcode == ASM_END) | |
1660 { | |
1661 debug { | |
1662 if (debuga) | |
1663 { | |
1664 printf("\t%s\t", asm_opstr(pop)); | |
1665 if (popnd1) | |
1666 asm_output_popnd(popnd1); | |
1667 if (popnd2) { | |
1668 printf(","); | |
1669 asm_output_popnd(popnd2); | |
1670 } | |
1671 if (popnd3) { | |
1672 printf(","); | |
1673 asm_output_popnd(popnd3); | |
1674 } | |
1675 printf("\n"); | |
1676 | |
1677 printf("OPCODE mismatch = "); | |
1678 if (popnd1) | |
1679 asm_output_flags(popnd1.usFlags); | |
1680 else | |
1681 printf("NONE"); | |
1682 printf( " Op2 = "); | |
1683 if (popnd2) | |
1684 asm_output_flags(popnd2.usFlags); | |
1685 else | |
1686 printf("NONE"); | |
1687 printf("\n"); | |
1688 } | |
1689 } | |
1690 goto TYPE_SIZE_ERROR; | |
1691 } | |
1692 ptbRet.pptb2 = pptb2; | |
1693 goto RETURN_IT; | |
1694 | |
1695 case 3: | |
1696 for (pptb3 = pop.ptb.pptb3; | |
1697 pptb3.usOpcode != ASM_END; | |
1698 pptb3++) | |
1699 { | |
1700 bMatch1 = asm_match_flags(usFlags1, pptb3.usOp1); | |
1701 bMatch2 = asm_match_flags(usFlags2, pptb3.usOp2); | |
1702 bMatch3 = asm_match_flags(usFlags3, pptb3.usOp3); | |
1703 if (bMatch1 && bMatch2 && bMatch3) | |
1704 goto Lfound3; | |
1705 | |
1706 if (asmstate.ucItype == IT.ITopt) | |
1707 { | |
1708 switch (usNumops) | |
1709 { | |
1710 case 0: | |
1711 if (!pptb3.usOp1) | |
1712 goto Lfound3; | |
1713 break; | |
1714 case 1: | |
1715 if (bMatch1 && !pptb3.usOp2) | |
1716 goto Lfound3; | |
1717 break; | |
1718 case 2: | |
1719 if (bMatch1 && bMatch2 && !pptb3.usOp3) | |
1720 goto Lfound3; | |
1721 break; | |
1722 case 3: | |
1723 break; | |
1724 default: | |
1725 goto PARAM_ERROR; | |
1726 } | |
1727 } | |
1728 } | |
1729 Lfound3: | |
1730 if (pptb3.usOpcode == ASM_END) | |
1731 { | |
1732 debug { | |
1733 if (debuga) | |
1734 { | |
1735 printf("\t%s\t", asm_opstr(pop)); | |
1736 if (popnd1) | |
1737 asm_output_popnd(popnd1); | |
1738 if (popnd2) { | |
1739 printf(","); | |
1740 asm_output_popnd(popnd2); | |
1741 } | |
1742 if (popnd3) { | |
1743 printf(","); | |
1744 asm_output_popnd(popnd3); | |
1745 } | |
1746 printf("\n"); | |
1747 | |
1748 printf("OPCODE mismatch = "); | |
1749 if (popnd1) | |
1750 asm_output_flags(popnd1.usFlags); | |
1751 else | |
1752 printf("NONE"); | |
1753 printf( " Op2 = "); | |
1754 if (popnd2) | |
1755 asm_output_flags(popnd2.usFlags); | |
1756 else | |
1757 printf("NONE"); | |
1758 if (popnd3) | |
1759 asm_output_flags(popnd3.usFlags); | |
1760 printf("\n"); | |
1761 } | |
1762 } | |
1763 goto TYPE_SIZE_ERROR; | |
1764 } | |
1765 | |
1766 ptbRet.pptb3 = pptb3; | |
1767 goto RETURN_IT; | |
1768 } | |
1769 | |
1770 RETURN_IT: | |
1771 if (bRetry && !bFake) | |
1772 { | |
1773 asmerr(ASMERRMSGS.EM_bad_op, fromStringz(asm_opstr(pop))); | |
1774 } | |
1775 return ptbRet; | |
1776 } | |
1777 | |
1778 /******************************* | |
1779 * start of inline assemblers expression parser | |
1780 * NOTE: functions in call order instead of alphabetical | |
1781 */ | |
1782 | |
1783 /******************************************* | |
1784 * Parse DA expression | |
1785 * | |
1786 * Very limited define address to place a code | |
1787 * address in the assembly | |
1788 * Problems: | |
1789 * o Should use dw offset and dd offset instead, | |
1790 * for near/far support. | |
1791 * o Should be able to add an offset to the label address. | |
1792 * o Blocks addressed by DA should get their Bpred set correctly | |
1793 * for optimizer. | |
1794 */ | |
1795 | |
1796 code* asm_da_parse(OP* pop) | |
1797 { | |
1798 code* clst = null; | |
1799 elem* e; | |
1800 | |
1801 while (1) | |
1802 { | |
1803 code* c; | |
1804 | |
1805 if (tok_value == TOK.TOKidentifier) | |
1806 { | |
1807 LabelDsymbol label = asmstate.sc.func.searchLabel(asmtok.ident); | |
1808 if (!label) | |
1809 error(asmstate.loc, "label '%s' not found\n", asmtok.ident.toChars()); | |
1810 | |
1811 c = code_calloc(); | |
1812 c.Iop = ASM; | |
1813 c.Iflags = CF.CFaddrsize; | |
1814 c.IFL1 = FL.FLblockoff; | |
1815 c.IEVlsym1() = label; | |
1816 c = asm_genloc(asmstate.loc, c); | |
1817 clst = cat(clst,c); | |
1818 } | |
1819 else | |
1820 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
1821 | |
1822 asm_token(); | |
1823 if (tok_value != TOK.TOKcomma) | |
1824 break; | |
1825 | |
1826 asm_token(); | |
1827 } | |
1828 | |
1829 asmstate.statement.regs |= mES | ALLREGS; | |
1830 asmstate.bReturnax = true; | |
1831 | |
1832 return clst; | |
1833 } | |
1834 | |
1835 /******************************************* | |
1836 * Parse DB, DW, DD, DQ and DT expressions. | |
1837 */ | |
1838 | |
1839 code* asm_db_parse(OP* pop) | |
1840 { | |
1841 uint usSize; | |
1842 uint usMaxbytes; | |
1843 uint usBytes; | |
1844 | |
1845 union DT | |
1846 { | |
1847 targ_ullong ul; | |
1848 targ_float f; | |
1849 targ_double d; | |
1850 targ_ldouble ld; | |
1851 char value[10]; | |
1852 } | |
1853 | |
1854 DT dt; | |
1855 | |
1856 code* c; | |
1857 uint op; | |
1858 static ubyte[7] opsize = [ 1,2,4,8,4,8,10 ]; | |
1859 | |
1860 op = pop.usNumops & IT.ITSIZE; | |
1861 usSize = opsize[op]; | |
1862 | |
1863 usBytes = 0; | |
1864 usMaxbytes = 0; | |
1865 c = code_calloc(); | |
1866 c.Iop = ASM; | |
1867 | |
1868 while (1) | |
1869 { | |
1870 size_t len; | |
1871 ubyte* q; | |
1872 | |
1873 if (usBytes+usSize > usMaxbytes) | |
1874 { | |
1875 usMaxbytes = usBytes + usSize + 10; | |
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
1876 c.IEV1.as.bytes = cast(char*)realloc(c.IEV1.as.bytes,usMaxbytes); |
0 | 1877 } |
1878 switch (tok_value) | |
1879 { | |
1880 case TOK.TOKint32v: | |
1881 dt.ul = asmtok.int32value; | |
1882 goto L1; | |
1883 case TOK.TOKuns32v: | |
1884 dt.ul = asmtok.uns32value; | |
1885 goto L1; | |
1886 case TOK.TOKint64v: | |
1887 dt.ul = asmtok.int64value; | |
1888 goto L1; | |
1889 case TOK.TOKuns64v: | |
1890 dt.ul = asmtok.uns64value; | |
1891 goto L1; | |
1892 L1: | |
1893 switch (op) | |
1894 { | |
1895 case OP_DB.OPdb: | |
1896 case OP_DB.OPds: | |
1897 case OP_DB.OPdi: | |
1898 case OP_DB.OPdl: | |
1899 break; | |
1900 default: | |
1901 asmerr(ASMERRMSGS.EM_float); | |
1902 } | |
1903 goto L2; | |
1904 | |
1905 case TOK.TOKfloat32v: | |
1906 case TOK.TOKfloat64v: | |
1907 case TOK.TOKfloat80v: | |
1908 switch (op) | |
1909 { | |
1910 case OP_DB.OPdf: | |
1911 dt.f = asmtok.float80value; | |
1912 break; | |
1913 case OP_DB.OPdd: | |
1914 dt.d = asmtok.float80value; | |
1915 break; | |
1916 case OP_DB.OPde: | |
1917 dt.ld = asmtok.float80value; | |
1918 break; | |
1919 default: | |
1920 asmerr(ASMERRMSGS.EM_num); | |
1921 } | |
1922 goto L2; | |
1923 | |
1924 L2: | |
1925 memcpy(c.IEV1.as.bytes + usBytes,&dt,usSize); | |
1926 usBytes += usSize; | |
1927 break; | |
1928 | |
1929 case TOK.TOKstring: | |
1930 len = asmtok.len; | |
1931 q = cast(ubyte*)asmtok.ustring; | |
1932 L3: | |
1933 if (len) | |
1934 { | |
1935 usMaxbytes += len * usSize; | |
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
1936 c.IEV1.as.bytes = cast(char*)realloc(c.IEV1.as.bytes,usMaxbytes); |
0 | 1937 memcpy(c.IEV1.as.bytes + usBytes,asmtok.ustring,len); |
1938 | |
1939 char* p = c.IEV1.as.bytes + usBytes; | |
1940 for (size_t i = 0; i < len; i++) | |
1941 { | |
1942 // Be careful that this works | |
1943 memset(p, 0, usSize); | |
1944 switch (op) | |
1945 { | |
1946 case OP_DB.OPdb: | |
1947 *p = cast(ubyte)*q; | |
1948 if (*p != *q) | |
1949 asmerr(ASMERRMSGS.EM_char); | |
1950 break; | |
1951 | |
1952 case OP_DB.OPds: | |
1953 *cast(short*)p = *cast(ubyte*)q; | |
1954 if (*cast(short*)p != *q) | |
1955 asmerr(ASMERRMSGS.EM_char); | |
1956 break; | |
1957 | |
1958 case OP_DB.OPdi: | |
1959 case OP_DB.OPdl: | |
1960 *cast(int*)p = *q; | |
1961 break; | |
1962 | |
1963 default: | |
1964 asmerr(ASMERRMSGS.EM_float); | |
1965 } | |
1966 q++; | |
1967 p += usSize; | |
1968 } | |
1969 | |
1970 usBytes += len * usSize; | |
1971 } | |
1972 break; | |
1973 | |
1974 case TOK.TOKidentifier: | |
1975 { | |
1976 Expression e = new IdentifierExp(asmstate.loc, asmtok.ident); | |
1977 e = e.semantic(asmstate.sc); | |
1978 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
1979 if (e.op == TOK.TOKint64) | |
1980 { | |
1981 dt.ul = e.toInteger(); | |
1982 goto L2; | |
1983 } | |
1984 else if (e.op == TOK.TOKfloat64) | |
1985 { | |
1986 switch (op) | |
1987 { | |
1988 case OP_DB.OPdf: | |
1989 dt.f = e.toReal(); | |
1990 break; | |
1991 case OP_DB.OPdd: | |
1992 dt.d = e.toReal(); | |
1993 break; | |
1994 case OP_DB.OPde: | |
1995 dt.ld = e.toReal(); | |
1996 break; | |
1997 default: | |
1998 asmerr(ASMERRMSGS.EM_num); | |
1999 } | |
2000 goto L2; | |
2001 } | |
2002 else if (e.op == TOK.TOKstring) | |
2003 { | |
2004 StringExp se = cast(StringExp)e; | |
2005 q = cast(ubyte*)se.string_; | |
2006 len = se.len; | |
2007 goto L3; | |
2008 } | |
2009 goto Ldefault; | |
2010 } | |
2011 | |
2012 default: | |
2013 Ldefault: | |
2014 asmerr(ASMERRMSGS.EM_const_init); // constant initializer | |
2015 break; | |
2016 } | |
2017 c.IEV1.as.len = usBytes; | |
2018 | |
2019 asm_token(); | |
2020 if (tok_value != TOK.TOKcomma) | |
2021 break; | |
2022 | |
2023 asm_token(); | |
2024 } | |
2025 | |
2026 c = asm_genloc(asmstate.loc, c); | |
2027 | |
2028 asmstate.statement.regs |= /* mES| */ ALLREGS; | |
2029 asmstate.bReturnax = true; | |
2030 | |
2031 return c; | |
2032 } | |
2033 | |
2034 /********************************** | |
2035 * Parse and get integer expression. | |
2036 */ | |
2037 | |
2038 int asm_getnum() | |
2039 { | |
2040 int v; | |
2041 long i; | |
2042 | |
2043 switch (tok_value) | |
2044 { | |
2045 case TOK.TOKint32v: | |
2046 v = asmtok.int32value; | |
2047 break; | |
2048 | |
2049 case TOK.TOKuns32v: | |
2050 v = asmtok.uns32value; | |
2051 break; | |
2052 | |
2053 case TOK.TOKidentifier: | |
2054 Expression e = new IdentifierExp(asmstate.loc, asmtok.ident); | |
2055 e = e.semantic(asmstate.sc); | |
2056 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
2057 i = e.toInteger(); | |
2058 v = cast(int) i; | |
2059 if (v != i) | |
2060 asmerr(ASMERRMSGS.EM_num); | |
2061 break; | |
2062 | |
2063 default: | |
2064 asmerr(ASMERRMSGS.EM_num); | |
2065 break; | |
2066 } | |
2067 | |
2068 asm_token(); | |
2069 | |
2070 return v; | |
2071 } | |
2072 | |
2073 | |
2074 /******************************* | |
2075 */ | |
2076 | |
2077 OPND* asm_cond_exp() | |
2078 { | |
2079 OPND* o1; | |
2080 OPND* o2; | |
2081 OPND* o3; | |
2082 | |
2083 //printf("asm_cond_exp()\n"); | |
2084 o1 = asm_log_or_exp(); | |
2085 if (tok_value == TOK.TOKquestion) | |
2086 { | |
2087 asm_token(); | |
2088 o2 = asm_cond_exp(); | |
2089 asm_token(); | |
2090 asm_chktok(TOK.TOKcolon, ASMERRMSGS.EM_colon); | |
2091 o3 = asm_cond_exp(); | |
2092 o1 = (o1.disp) ? o2 : o3; | |
2093 } | |
2094 | |
2095 return o1; | |
2096 } | |
2097 | |
2098 regm_t asm_modify_regs(PTRNTAB ptb, OPND* popnd1, OPND* popnd2) | |
2099 { | |
2100 regm_t usRet = 0; | |
2101 | |
2102 switch (ptb.pptb0.usFlags & MOD_MASK) { | |
2103 case _modsi: | |
2104 usRet |= mSI; | |
2105 break; | |
2106 case _moddx: | |
2107 usRet |= mDX; | |
2108 break; | |
2109 case _mod2: | |
2110 if (popnd2) | |
2111 usRet |= asm_modify_regs(ptb, popnd2, null); | |
2112 break; | |
2113 case _modax: | |
2114 usRet |= mAX; | |
2115 break; | |
2116 case _modnot1: | |
2117 popnd1 = null; | |
2118 break; | |
2119 case _modaxdx: | |
2120 usRet |= (mAX | mDX); | |
2121 break; | |
2122 case _moddi: | |
2123 usRet |= mDI; | |
2124 break; | |
2125 case _modsidi: | |
2126 usRet |= (mSI | mDI); | |
2127 break; | |
2128 case _modcx: | |
2129 usRet |= mCX; | |
2130 break; | |
2131 case _modes: | |
2132 /*usRet |= mES;*/ | |
2133 break; | |
2134 case _modall: | |
2135 asmstate.bReturnax = true; | |
2136 return /*mES |*/ ALLREGS; | |
2137 case _modsiax: | |
2138 usRet |= (mSI | mAX); | |
2139 break; | |
2140 case _modsinot1: | |
2141 usRet |= mSI; | |
2142 popnd1 = null; | |
2143 break; | |
2144 default: | |
2145 break; /// | |
2146 } | |
2147 if (popnd1 && ASM_GET_aopty(popnd1.usFlags) == ASM_OPERAND_TYPE._reg) { | |
2148 switch (ASM_GET_amod(popnd1.usFlags)) { | |
2149 default: | |
2150 if (ASM_GET_uSizemask(popnd1.usFlags) == _8) { | |
2151 switch(popnd1.base.val) { | |
2152 case _AL: | |
2153 case _AH: | |
2154 usRet |= mAX; | |
2155 break; | |
2156 case _BL: | |
2157 case _BH: | |
2158 usRet |= mBX; | |
2159 break; | |
2160 case _CL: | |
2161 case _CH: | |
2162 usRet |= mCX; | |
2163 break; | |
2164 case _DL: | |
2165 case _DH: | |
2166 usRet |= mDX; | |
2167 break; | |
2168 } | |
2169 } | |
2170 else { | |
2171 switch (popnd1.base.val) { | |
2172 case _AX: | |
2173 usRet |= mAX; | |
2174 break; | |
2175 case _BX: | |
2176 usRet |= mBX; | |
2177 break; | |
2178 case _CX: | |
2179 usRet |= mCX; | |
2180 break; | |
2181 case _DX: | |
2182 usRet |= mDX; | |
2183 break; | |
2184 case _SI: | |
2185 usRet |= mSI; | |
2186 break; | |
2187 case _DI: | |
2188 usRet |= mDI; | |
2189 break; | |
2190 default: | |
2191 break; /// | |
2192 } | |
2193 } | |
2194 break; | |
2195 | |
2196 case ASM_MODIFIERS._rseg: | |
2197 //if (popnd1.base.val == _ES) | |
2198 //usRet |= mES; | |
2199 break; | |
2200 | |
2201 case ASM_MODIFIERS._rspecial: | |
2202 break; | |
2203 } | |
2204 } | |
2205 if (usRet & mAX) | |
2206 asmstate.bReturnax = true; | |
2207 | |
2208 return usRet; | |
2209 } | |
2210 | |
2211 | |
2212 /**************************** | |
2213 * Fill in the modregrm and sib bytes of code. | |
2214 */ | |
2215 | |
2216 uint X(ubyte r1, ubyte r2) { | |
2217 return (((r1) * 16) + (r2)); | |
2218 } | |
2219 | |
2220 uint Y(ubyte r1) { | |
2221 return X(r1, 9); | |
2222 } | |
2223 | |
2224 void asm_make_modrm_byte( | |
2225 ///debug { | |
2226 ubyte[] puchOpcode, uint* pusIdx, | |
2227 ///} | |
2228 code *pc, | |
2229 ushort usFlags, | |
2230 OPND *popnd, OPND *popnd2) | |
2231 { | |
2232 /// #undef modregrm | |
2233 | |
2234 union MODRM_BYTE // mrmb | |
2235 { | |
2236 struct MODRM | |
2237 { | |
2238 mixin(bitfields!( | |
2239 uint, "rm", 3, | |
2240 uint, "reg", 3, | |
2241 uint, "mod", 2)); | |
2242 } | |
2243 | |
2244 ubyte uchOpcode; | |
2245 MODRM modregrm; | |
2246 } | |
2247 | |
2248 union SIB_BYTE | |
2249 { | |
2250 struct SIB | |
2251 { | |
2252 | |
2253 mixin(bitfields!( | |
2254 uint, "base", 3, | |
2255 uint, "index", 3, | |
2256 uint, "ss", 2)); | |
2257 } | |
2258 | |
2259 ubyte uchOpcode; | |
2260 SIB sib; | |
2261 } | |
2262 | |
2263 | |
2264 MODRM_BYTE mrmb; | |
2265 SIB_BYTE sib; | |
2266 char bSib = false; | |
2267 char bDisp = false; | |
2268 char b32bit = false; | |
2269 ubyte* puc; | |
2270 char bModset = false; | |
2271 Dsymbol s; | |
2272 | |
2273 uint uSizemask = 0; | |
2274 ASM_OPERAND_TYPE aopty; | |
2275 ASM_MODIFIERS amod; | |
2276 ushort uRegmask; | |
2277 ubyte bOffsetsym = false; | |
2278 | |
2279 static if (false) { | |
2280 printf("asm_make_modrm_byte(usFlags = x%x)\n", usFlags); | |
2281 printf("op1: "); | |
2282 asm_output_flags(popnd.usFlags); | |
2283 if (popnd2) | |
2284 { | |
2285 printf(" op2: "); | |
2286 asm_output_flags(popnd2.usFlags); | |
2287 } | |
2288 printf("\n"); | |
2289 } | |
2290 | |
2291 uSizemask = ASM_GET_uSizemask(popnd.usFlags); | |
2292 aopty = ASM_GET_aopty(popnd.usFlags); | |
2293 amod = ASM_GET_amod(popnd.usFlags); | |
2294 uRegmask = ASM_GET_uRegmask(popnd.usFlags); | |
2295 s = popnd.s; | |
2296 if (s) | |
2297 { | |
2298 Declaration d = s.isDeclaration(); | |
2299 | |
2300 if (amod == ASM_MODIFIERS._fn16 && aopty == ASM_OPERAND_TYPE._rel && popnd2) | |
2301 { | |
2302 aopty = ASM_OPERAND_TYPE._m; | |
2303 goto L1; | |
2304 } | |
2305 | |
2306 if (amod == ASM_MODIFIERS._fn16 || amod == ASM_MODIFIERS._fn32) | |
2307 { | |
2308 pc.Iflags |= CF.CFoff; | |
2309 debug { | |
2310 puchOpcode[(*pusIdx)++] = 0; | |
2311 puchOpcode[(*pusIdx)++] = 0; | |
2312 } | |
2313 if (aopty == ASM_OPERAND_TYPE._m || aopty == ASM_OPERAND_TYPE._mnoi) | |
2314 { | |
2315 pc.IFL1 = FL.FLdata; | |
2316 pc.IEVdsym1() = d; | |
2317 pc.IEVoffset1() = 0; | |
2318 } | |
2319 else | |
2320 { | |
2321 if (aopty == ASM_OPERAND_TYPE._p) | |
2322 pc.Iflags |= CF.CFseg; | |
2323 | |
2324 debug if (aopty == ASM_OPERAND_TYPE._p || aopty == ASM_OPERAND_TYPE._rel) | |
2325 { | |
2326 puchOpcode[(*pusIdx)++] = 0; | |
2327 puchOpcode[(*pusIdx)++] = 0; | |
2328 } | |
2329 | |
2330 pc.IFL2 = FL.FLfunc; | |
2331 pc.IEVdsym2() = d; | |
2332 pc.IEVoffset2() = 0; | |
2333 //return; | |
2334 } | |
2335 } | |
2336 else | |
2337 { | |
2338 L1: | |
2339 LabelDsymbol label = s.isLabel(); | |
2340 if (label) | |
2341 { | |
2342 if (s == asmstate.psDollar) | |
2343 { | |
2344 pc.IFL1 = FL.FLconst; | |
2345 if (uSizemask & (_8 | _16)) | |
2346 pc.IEVint1() = popnd.disp; | |
2347 else if (uSizemask & _32) | |
2348 pc.IEVpointer1() = cast(targ_size_t) popnd.disp; | |
2349 } | |
2350 else | |
2351 { | |
2352 pc.IFL1 = FL.FLblockoff; | |
2353 pc.IEVlsym1() = label; | |
2354 } | |
2355 } | |
2356 else if (s == asmstate.psLocalsize) | |
2357 { | |
2358 pc.IFL1 = FL.FLlocalsize; | |
2359 pc.IEVdsym1() = null; | |
2360 pc.Iflags |= CF.CFoff; | |
2361 pc.IEVoffset1() = popnd.disp; | |
2362 } | |
2363 else if (s.isFuncDeclaration()) | |
2364 { | |
2365 pc.IFL1 = FL.FLfunc; | |
2366 pc.IEVdsym1() = d; | |
2367 pc.IEVoffset1() = popnd.disp; | |
2368 } | |
2369 else | |
2370 { | |
2371 debug if (debuga) | |
2372 printf("Setting up symbol %s\n", d.ident.toChars()); | |
2373 | |
2374 pc.IFL1 = FL.FLdsymbol; | |
2375 pc.IEVdsym1() = d; | |
2376 pc.Iflags |= CF.CFoff; | |
2377 pc.IEVoffset1() = popnd.disp; | |
2378 } | |
2379 } | |
2380 } | |
2381 | |
2382 mrmb.modregrm.reg = usFlags & NUM_MASK; | |
2383 | |
2384 if (s && (aopty == ASM_OPERAND_TYPE._m || aopty == ASM_OPERAND_TYPE._mnoi) && !s.isLabel()) | |
2385 { | |
2386 if (s == asmstate.psLocalsize) | |
2387 { | |
2388 DATA_REF: | |
2389 mrmb.modregrm.rm = BPRM; | |
2390 if (amod == ASM_MODIFIERS._addr16 || amod == ASM_MODIFIERS._addr32) | |
2391 mrmb.modregrm.mod = 0x2; | |
2392 else | |
2393 mrmb.modregrm.mod = 0x0; | |
2394 } | |
2395 else | |
2396 { | |
2397 Declaration d = s.isDeclaration(); | |
2398 assert(d); | |
2399 if (d.isDataseg() || d.isCodeseg()) | |
2400 { | |
2401 if (( I32 && amod == ASM_MODIFIERS._addr16) || | |
2402 (!I32 && amod == ASM_MODIFIERS._addr32)) | |
2403 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2404 goto DATA_REF; | |
2405 } | |
2406 mrmb.modregrm.rm = BPRM; | |
2407 mrmb.modregrm.mod = 0x2; | |
2408 } | |
2409 } | |
2410 | |
2411 if (aopty == ASM_OPERAND_TYPE._reg || amod == ASM_MODIFIERS._rspecial) { | |
2412 mrmb.modregrm.mod = 0x3; | |
2413 mrmb.modregrm.rm = mrmb.modregrm.rm | popnd.base.val; | |
2414 } | |
2415 else if (amod == ASM_MODIFIERS._addr16 || (amod == ASM_MODIFIERS._flbl && !I32)) | |
2416 { | |
2417 uint rm; | |
2418 | |
2419 debug if (debuga) | |
2420 printf("This is an ADDR16\n"); | |
2421 | |
2422 if (!popnd.pregDisp1) | |
2423 { rm = 0x6; | |
2424 if (!s) | |
2425 bDisp = true; | |
2426 } | |
2427 else | |
2428 { | |
2429 uint r1r2; | |
2430 | |
2431 if (popnd.pregDisp2) | |
2432 r1r2 = X(popnd.pregDisp1.val,popnd.pregDisp2.val); | |
2433 else | |
2434 r1r2 = Y(popnd.pregDisp1.val); | |
2435 | |
2436 switch (r1r2) | |
2437 { | |
2438 case X(_BX,_SI): rm = 0; break; | |
2439 case X(_BX,_DI): rm = 1; break; | |
2440 case Y(_BX): rm = 7; break; | |
2441 | |
2442 case X(_BP,_SI): rm = 2; break; | |
2443 case X(_BP,_DI): rm = 3; break; | |
2444 case Y(_BP): rm = 6; bDisp = true; break; | |
2445 | |
2446 case X(_SI,_BX): rm = 0; break; | |
2447 case X(_SI,_BP): rm = 2; break; | |
2448 case Y(_SI): rm = 4; break; | |
2449 | |
2450 case X(_DI,_BX): rm = 1; break; | |
2451 case X(_DI,_BP): rm = 3; break; | |
2452 case Y(_DI): rm = 5; break; | |
2453 | |
2454 default: | |
2455 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2456 } | |
2457 } | |
2458 mrmb.modregrm.rm = rm; | |
2459 | |
2460 debug if (debuga) | |
2461 printf("This is an mod = %d, popnd.s =%ld, popnd.disp = %ld\n", | |
2462 mrmb.modregrm.mod, s, popnd.disp); | |
2463 | |
2464 if (!s || (!mrmb.modregrm.mod && popnd.disp)) | |
2465 { | |
2466 if ((!popnd.disp && !bDisp) || !popnd.pregDisp1) | |
2467 mrmb.modregrm.mod = 0x0; | |
2468 else if (popnd.disp >= CHAR_MIN && popnd.disp <= SCHAR_MAX) | |
2469 mrmb.modregrm.mod = 0x1; | |
2470 else | |
2471 mrmb.modregrm.mod = 0X2; | |
2472 } | |
2473 else | |
2474 bOffsetsym = true; | |
2475 | |
2476 } | |
2477 else if (amod == ASM_MODIFIERS._addr32 || (amod == ASM_MODIFIERS._flbl && I32)) | |
2478 { | |
2479 debug if (debuga) | |
2480 printf("This is an ADDR32\n"); | |
2481 | |
2482 if (!popnd.pregDisp1) | |
2483 mrmb.modregrm.rm = 0x5; | |
2484 else if (popnd.pregDisp2 || | |
2485 popnd.uchMultiplier || | |
2486 popnd.pregDisp1.val == _ESP) | |
2487 { | |
2488 if (popnd.pregDisp2) | |
2489 { | |
2490 if (popnd.pregDisp2.val == _ESP) | |
2491 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2492 } | |
2493 else | |
2494 { | |
2495 if (popnd.uchMultiplier && popnd.pregDisp1.val ==_ESP) | |
2496 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2497 bDisp = true; | |
2498 } | |
2499 | |
2500 mrmb.modregrm.rm = 0x4; | |
2501 bSib = true; | |
2502 if (bDisp) | |
2503 { | |
2504 if (!popnd.uchMultiplier && | |
2505 popnd.pregDisp1.val==_ESP) | |
2506 { | |
2507 sib.sib.base = popnd.pregDisp1.val; | |
2508 sib.sib.index = 0x4; | |
2509 } | |
2510 else | |
2511 { | |
2512 debug if (debuga) | |
2513 printf("Resetting the mod to 0\n"); | |
2514 | |
2515 if (popnd.pregDisp2) | |
2516 { | |
2517 if (popnd.pregDisp2.val != _EBP) | |
2518 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2519 } | |
2520 else | |
2521 { | |
2522 mrmb.modregrm.mod = 0x0; | |
2523 bModset = true; | |
2524 } | |
2525 | |
2526 sib.sib.base = 0x5; | |
2527 sib.sib.index = popnd.pregDisp1.val; | |
2528 } | |
2529 } | |
2530 else | |
2531 { | |
2532 sib.sib.base = popnd.pregDisp1.val; | |
2533 // | |
2534 // This is to handle the special case | |
2535 // of using the EBP register and no | |
2536 // displacement. You must put in an | |
2537 // 8 byte displacement in order to | |
2538 // get the correct opcodes. | |
2539 // | |
2540 if (popnd.pregDisp1.val == _EBP && (!popnd.disp && !s)) | |
2541 { | |
2542 debug if (debuga) | |
2543 printf("Setting the mod to 1 in the _EBP case\n"); | |
2544 | |
2545 mrmb.modregrm.mod = 0x1; | |
2546 bDisp = true; // Need a | |
2547 // displacement | |
2548 bModset = true; | |
2549 } | |
2550 | |
2551 sib.sib.index = popnd.pregDisp2.val; | |
2552 } | |
2553 switch (popnd.uchMultiplier) | |
2554 { | |
2555 case 0: sib.sib.ss = 0; break; | |
2556 case 1: sib.sib.ss = 0; break; | |
2557 case 2: sib.sib.ss = 1; break; | |
2558 case 4: sib.sib.ss = 2; break; | |
2559 case 8: sib.sib.ss = 3; break; | |
2560 | |
2561 default: | |
2562 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2563 break; | |
2564 } | |
2565 if (bDisp && sib.sib.base == 0x5) | |
2566 b32bit = true; | |
2567 } | |
2568 else | |
2569 { | |
2570 uint rm; | |
2571 | |
2572 if (popnd.uchMultiplier) | |
2573 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2574 switch (popnd.pregDisp1.val) | |
2575 { | |
2576 case _EAX: rm = 0; break; | |
2577 case _ECX: rm = 1; break; | |
2578 case _EDX: rm = 2; break; | |
2579 case _EBX: rm = 3; break; | |
2580 case _ESI: rm = 6; break; | |
2581 case _EDI: rm = 7; break; | |
2582 | |
2583 case _EBP: | |
2584 if (!popnd.disp && !s) | |
2585 { | |
2586 mrmb.modregrm.mod = 0x1; | |
2587 bDisp = true; // Need a displacement | |
2588 bModset = true; | |
2589 } | |
2590 rm = 5; | |
2591 break; | |
2592 | |
2593 default: | |
2594 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2595 break; | |
2596 } | |
2597 mrmb.modregrm.rm = rm; | |
2598 } | |
2599 if (!bModset && (!s || (!mrmb.modregrm.mod && popnd.disp))) | |
2600 { | |
2601 if ((!popnd.disp && !mrmb.modregrm.mod) || | |
2602 (!popnd.pregDisp1 && !popnd.pregDisp2)) | |
2603 { | |
2604 mrmb.modregrm.mod = 0x0; | |
2605 bDisp = true; | |
2606 } | |
2607 else if (popnd.disp >= CHAR_MIN && popnd.disp <= SCHAR_MAX) | |
2608 mrmb.modregrm.mod = 0x1; | |
2609 else | |
2610 mrmb.modregrm.mod = 0x2; | |
2611 } | |
2612 else | |
2613 bOffsetsym = true; | |
2614 } | |
2615 if (popnd2 && !mrmb.modregrm.reg && | |
2616 asmstate.ucItype != IT.ITshift && | |
2617 (ASM_GET_aopty(popnd2.usFlags) == ASM_OPERAND_TYPE._reg || | |
2618 ASM_GET_amod(popnd2.usFlags) == ASM_MODIFIERS._rseg || | |
2619 ASM_GET_amod(popnd2.usFlags) == ASM_MODIFIERS._rspecial)) | |
2620 { | |
2621 mrmb.modregrm.reg = popnd2.base.val; | |
2622 } | |
2623 debug puchOpcode[ (*pusIdx)++ ] = mrmb.uchOpcode; | |
2624 | |
2625 pc.Irm = mrmb.uchOpcode; | |
2626 //printf("Irm = %02x\n", pc.Irm); | |
2627 if (bSib) | |
2628 { | |
2629 debug puchOpcode[ (*pusIdx)++ ] = sib.uchOpcode; | |
2630 pc.Isib= sib.uchOpcode; | |
2631 } | |
2632 if ((!s || (popnd.pregDisp1 && !bOffsetsym)) && | |
2633 aopty != ASM_OPERAND_TYPE._imm && | |
2634 (popnd.disp || bDisp)) | |
2635 { | |
2636 if (popnd.usFlags & _a16) | |
2637 { | |
2638 debug { | |
2639 puc = (cast(ubyte*) &(popnd.disp)); | |
2640 puchOpcode[(*pusIdx)++] = puc[1]; | |
2641 puchOpcode[(*pusIdx)++] = puc[0]; | |
2642 } | |
2643 if (usFlags & (_modrm | NUM_MASK)) { | |
2644 debug if (debuga) | |
2645 printf("Setting up value %ld\n", popnd.disp); | |
2646 | |
2647 pc.IEVint1() = popnd.disp; | |
2648 pc.IFL1 = FL.FLconst; | |
2649 } | |
2650 else { | |
2651 pc.IEVint2() = popnd.disp; | |
2652 pc.IFL2 = FL.FLconst; | |
2653 } | |
2654 | |
2655 } | |
2656 else | |
2657 { | |
2658 debug { | |
2659 puc = (cast(ubyte*) &(popnd.disp)); | |
2660 puchOpcode[(*pusIdx)++] = puc[3]; | |
2661 puchOpcode[(*pusIdx)++] = puc[2]; | |
2662 puchOpcode[(*pusIdx)++] = puc[1]; | |
2663 puchOpcode[(*pusIdx)++] = puc[0]; | |
2664 } | |
2665 if (usFlags & (_modrm | NUM_MASK)) { | |
2666 debug if (debuga) | |
2667 printf("Setting up value %ld\n", popnd.disp); | |
2668 | |
2669 pc.IEVpointer1() = cast(targ_size_t) popnd.disp; | |
2670 pc.IFL1 = FL.FLconst; | |
2671 } else { | |
2672 pc.IEVpointer2() = cast(targ_size_t) popnd.disp; | |
2673 pc.IFL2 = FL.FLconst; | |
2674 } | |
2675 } | |
2676 } | |
2677 } | |
2678 | |
2679 void asm_output_popnd(OPND* popnd) | |
2680 { | |
2681 if (popnd.segreg) | |
2682 printf("%s:", popnd.segreg.regstr); | |
2683 | |
2684 if (popnd.s) | |
2685 writef("%s", popnd.s.ident.toChars()); | |
2686 | |
2687 if (popnd.base) | |
2688 printf("%s", popnd.base.regstr); | |
2689 | |
2690 if (popnd.pregDisp1) { | |
2691 if (popnd.pregDisp2) { | |
2692 if (popnd.usFlags & _a32) | |
2693 if (popnd.uchMultiplier) | |
2694 printf("[%s][%s*%d]", | |
2695 popnd.pregDisp1.regstr, | |
2696 popnd.pregDisp2.regstr, | |
2697 popnd.uchMultiplier); | |
2698 else | |
2699 printf("[%s][%s]", | |
2700 popnd.pregDisp1.regstr, | |
2701 popnd.pregDisp2.regstr); | |
2702 else | |
2703 printf("[%s+%s]", | |
2704 popnd.pregDisp1.regstr, | |
2705 popnd.pregDisp2.regstr); | |
2706 } | |
2707 else { | |
2708 if (popnd.uchMultiplier) | |
2709 printf("[%s*%d]", | |
2710 popnd.pregDisp1.regstr, | |
2711 popnd.uchMultiplier); | |
2712 else | |
2713 printf("[%s]", | |
2714 popnd.pregDisp1.regstr); | |
2715 } | |
2716 } | |
2717 if (ASM_GET_aopty(popnd.usFlags) == ASM_OPERAND_TYPE._imm) | |
2718 printf("%lxh", popnd.disp); | |
2719 else if (popnd.disp) | |
2720 printf("+%lxh", popnd.disp); | |
2721 } | |
2722 | |
2723 /******************************* | |
2724 * Prepend line number to c. | |
2725 */ | |
2726 | |
2727 code* asm_genloc(Loc loc, code* c) | |
2728 { | |
2729 if (global.params.symdebug) | |
2730 { | |
2731 code* pcLin; | |
2732 Srcpos srcpos; | |
2733 | |
2734 srcpos.Slinnum = loc.linnum; | |
2735 srcpos.Sfilename = cast(char*)toStringz(loc.filename); | |
2736 pcLin = genlinnum(null, srcpos); | |
2737 | |
2738 c = cat(pcLin, c); | |
2739 } | |
2740 | |
2741 return c; | |
2742 } | |
2743 | |
2744 opflag_t asm_determine_operand_flags(OPND* popnd) | |
2745 { | |
2746 Dsymbol ps; | |
2747 int ty; | |
2748 opflag_t us; | |
2749 opflag_t sz; | |
2750 ASM_OPERAND_TYPE opty; | |
2751 ASM_MODIFIERS amod; | |
2752 | |
2753 // If specified 'offset' or 'segment' but no symbol | |
2754 if ((popnd.bOffset || popnd.bSeg) && !popnd.s) | |
2755 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
2756 | |
2757 if (asmstate.ucItype == IT.ITfloat) | |
2758 return asm_determine_float_flags(popnd); | |
2759 | |
2760 // If just a register | |
2761 if (popnd.base && !popnd.s && !popnd.disp && !popnd.real_) | |
2762 return popnd.base.ty; | |
2763 | |
2764 debug if (debuga) | |
2765 printf("popnd.base = %s\n, popnd.pregDisp1 = %ld\n", popnd.base ? popnd.base.regstr : "NONE", popnd.pregDisp1); | |
2766 | |
2767 ps = popnd.s; | |
2768 Declaration ds = ps ? ps.isDeclaration() : null; | |
2769 if (ds && ds.storage_class & STC.STClazy) | |
2770 sz = _anysize; | |
2771 else | |
2772 sz = cast(ushort)asm_type_size((ds && ds.storage_class & (STC.STCout | STC.STCref)) ? popnd.ptype.pointerTo() : popnd.ptype); | |
2773 if (popnd.pregDisp1 && !popnd.base) | |
2774 { | |
2775 if (ps && ps.isLabel() && sz == _anysize) | |
2776 sz = I32 ? _32 : _16; | |
2777 return (popnd.pregDisp1.ty & _r32) | |
2778 ? CONSTRUCT_FLAGS(sz, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._addr32, 0) | |
2779 : CONSTRUCT_FLAGS(sz, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._addr16, 0); | |
2780 } | |
2781 else if (ps) | |
2782 { | |
2783 if (popnd.bOffset || popnd.bSeg || ps == asmstate.psLocalsize) | |
2784 return I32 | |
2785 ? CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0) | |
2786 : CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
2787 | |
2788 if (ps.isLabel()) | |
2789 { | |
2790 switch (popnd.ajt) | |
2791 { | |
2792 case ASM_JUMPTYPE.ASM_JUMPTYPE_UNSPECIFIED: | |
2793 if (ps == asmstate.psDollar) | |
2794 { | |
2795 if (popnd.disp >= CHAR_MIN && | |
2796 popnd.disp <= CHAR_MAX) | |
2797 us = CONSTRUCT_FLAGS(_8, _rel, ASM_MODIFIERS._flbl,0); | |
2798 else | |
2799 if (popnd.disp >= SHRT_MIN && | |
2800 popnd.disp <= SHRT_MIN) | |
2801 us = CONSTRUCT_FLAGS(_16, _rel, ASM_MODIFIERS._flbl,0); | |
2802 else | |
2803 us = CONSTRUCT_FLAGS(_32, _rel, ASM_MODIFIERS._flbl,0); | |
2804 } | |
2805 else if (asmstate.ucItype != ITjump) | |
2806 { | |
2807 if (sz == _8) | |
2808 { us = CONSTRUCT_FLAGS(_8,ASM_OPERAND_TYPE._rel,ASM_MODIFIERS._flbl,0); | |
2809 break; | |
2810 } | |
2811 goto case_near; | |
2812 } | |
2813 else | |
2814 us = I32 | |
2815 ? CONSTRUCT_FLAGS(_8|_32, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._flbl, 0) | |
2816 : CONSTRUCT_FLAGS(_8|_16, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._flbl, 0); | |
2817 break; | |
2818 | |
2819 case ASM_JUMPTYPE.ASM_JUMPTYPE_NEAR: | |
2820 case_near: | |
2821 us = I32 | |
2822 ? CONSTRUCT_FLAGS(_32, _rel, _flbl, 0) | |
2823 : CONSTRUCT_FLAGS(_16, _rel, _flbl, 0); | |
2824 break; | |
2825 case ASM_JUMPTYPE.ASM_JUMPTYPE_SHORT: | |
2826 us = CONSTRUCT_FLAGS(_8, _rel, _flbl, 0); | |
2827 break; | |
2828 case ASM_JUMPTYPE.ASM_JUMPTYPE_FAR: | |
2829 us = I32 | |
2830 ? CONSTRUCT_FLAGS(_48, _rel, _flbl, 0) | |
2831 : CONSTRUCT_FLAGS(_32, _rel, _flbl, 0); | |
2832 break; | |
2833 default: | |
2834 assert(0); | |
2835 } | |
2836 return us; | |
2837 } | |
2838 if (!popnd.ptype) | |
2839 return CONSTRUCT_FLAGS(sz, _m, _normal, 0); | |
2840 ty = popnd.ptype.ty; | |
2841 if (ty == Tpointer && popnd.ptype.nextOf().ty == Tfunction && | |
2842 !ps.isVarDeclaration()) | |
2843 { | |
2844 static if (true) { | |
2845 return CONSTRUCT_FLAGS(_32, _m, _fn16, 0); | |
2846 } else { | |
2847 ty = popnd.ptype.Tnext.Tty; | |
2848 if (tyfarfunc(tybasic(ty))) { | |
2849 return I32 | |
2850 ? CONSTRUCT_FLAGS(_48, _mnoi, _fn32, 0) | |
2851 : CONSTRUCT_FLAGS(_32, _mnoi, _fn32, 0); | |
2852 } | |
2853 else { | |
2854 return I32 | |
2855 ? CONSTRUCT_FLAGS(_32, _m, _fn16, 0) | |
2856 : CONSTRUCT_FLAGS(_16, _m, _fn16, 0); | |
2857 } | |
2858 } | |
2859 } | |
2860 else if (ty == TY.Tfunction) | |
2861 { | |
2862 static if (true) { | |
2863 return CONSTRUCT_FLAGS(_32, _rel, _fn16, 0); | |
2864 } else { | |
2865 if (tyfarfunc(tybasic(ty))) | |
2866 return I32 | |
2867 ? CONSTRUCT_FLAGS(_48, _p, _fn32, 0) | |
2868 : CONSTRUCT_FLAGS(_32, _p, _fn32, 0); | |
2869 else | |
2870 return I32 | |
2871 ? CONSTRUCT_FLAGS(_32, _rel, _fn16, 0) | |
2872 : CONSTRUCT_FLAGS(_16, _rel, _fn16, 0); | |
2873 } | |
2874 } | |
2875 else if (asmstate.ucItype == IT.ITjump) | |
2876 { | |
2877 amod = _normal; | |
2878 goto L1; | |
2879 } | |
2880 else | |
2881 return CONSTRUCT_FLAGS(sz, _m, _normal, 0); | |
2882 } | |
2883 if (popnd.segreg /*|| popnd.bPtr*/) | |
2884 { | |
2885 amod = I32 ? _addr32 : _addr16; | |
2886 if (asmstate.ucItype == ITjump) | |
2887 { | |
2888 L1: | |
2889 opty = _m; | |
2890 if (I32) | |
2891 { if (sz == _48) | |
2892 opty = _mnoi; | |
2893 } | |
2894 else | |
2895 { | |
2896 if (sz == _32) | |
2897 opty = _mnoi; | |
2898 } | |
2899 us = CONSTRUCT_FLAGS(sz,opty,amod,0); | |
2900 } | |
2901 else | |
2902 us = CONSTRUCT_FLAGS(sz, | |
2903 // _rel, amod, 0); | |
2904 _m, amod, 0); | |
2905 } | |
2906 | |
2907 else if (popnd.ptype) | |
2908 us = CONSTRUCT_FLAGS(sz, _imm, _normal, 0); | |
2909 | |
2910 else if (popnd.disp >= CHAR_MIN && popnd.disp <= UCHAR_MAX) | |
2911 us = CONSTRUCT_FLAGS(_8 | _16 | _32, _imm, _normal, 0); | |
2912 else if (popnd.disp >= SHRT_MIN && popnd.disp <= USHRT_MAX) | |
2913 us = CONSTRUCT_FLAGS(_16 | _32, _imm, _normal, 0); | |
2914 else | |
2915 us = CONSTRUCT_FLAGS(_32, _imm, _normal, 0); | |
2916 return us; | |
2917 } | |
2918 | |
2919 /******************************* | |
2920 * Match flags in operand against flags in opcode table. | |
2921 * Returns: | |
2922 * !=0 if match | |
2923 */ | |
2924 | |
2925 ubyte asm_match_flags(opflag_t usOp, opflag_t usTable) | |
2926 { | |
2927 ASM_OPERAND_TYPE aoptyTable; | |
2928 ASM_OPERAND_TYPE aoptyOp; | |
2929 ASM_MODIFIERS amodTable; | |
2930 ASM_MODIFIERS amodOp; | |
2931 uint uRegmaskTable; | |
2932 uint uRegmaskOp; | |
2933 ubyte bRegmatch; | |
2934 ubyte bRetval = false; | |
2935 uint uSizemaskOp; | |
2936 uint uSizemaskTable; | |
2937 ubyte bSizematch; | |
2938 | |
2939 //printf("asm_match_flags(usOp = x%x, usTable = x%x)\n", usOp, usTable); | |
2940 if (asmstate.ucItype == IT.ITfloat) | |
2941 { | |
2942 bRetval = asm_match_float_flags(usOp, usTable); | |
2943 goto EXIT; | |
2944 } | |
2945 | |
2946 uSizemaskOp = ASM_GET_uSizemask(usOp); | |
2947 uSizemaskTable = ASM_GET_uSizemask(usTable); | |
2948 | |
2949 // Check #1, if the sizes do not match, NO match | |
2950 bSizematch = (uSizemaskOp & uSizemaskTable) != 0; | |
2951 | |
2952 amodOp = ASM_GET_amod(usOp); | |
2953 | |
2954 aoptyTable = ASM_GET_aopty(usTable); | |
2955 aoptyOp = ASM_GET_aopty(usOp); | |
2956 | |
2957 // _mmm64 matches with a 64 bit mem or an MMX register | |
2958 if (usTable == _mmm64) | |
2959 { | |
2960 if (usOp == _mm) | |
2961 goto Lmatch; | |
2962 if (aoptyOp == _m && (bSizematch || uSizemaskOp == _anysize)) | |
2963 goto Lmatch; | |
2964 goto EXIT; | |
2965 } | |
2966 | |
2967 // _xmm_m32, _xmm_m64, _xmm_m128 match with XMM register or memory | |
2968 if (usTable == _xmm_m32 || | |
2969 usTable == _xmm_m64 || | |
2970 usTable == _xmm_m128) | |
2971 { | |
2972 if (usOp == _xmm) | |
2973 goto Lmatch; | |
2974 if (aoptyOp == _m && (bSizematch || uSizemaskOp == _anysize)) | |
2975 goto Lmatch; | |
2976 } | |
2977 | |
2978 if (!bSizematch && uSizemaskTable) | |
2979 { | |
2980 //printf("no size match\n"); | |
2981 goto EXIT; | |
2982 } | |
2983 | |
2984 | |
2985 // | |
2986 // The operand types must match, otherwise return false. | |
2987 // There is one exception for the _rm which is a table entry which matches | |
2988 // _reg or _m | |
2989 // | |
2990 if (aoptyTable != aoptyOp) | |
2991 { | |
2992 if (aoptyTable == _rm && (aoptyOp == _reg || | |
2993 aoptyOp == _m || | |
2994 aoptyOp == _rel)) | |
2995 goto Lok; | |
2996 | |
2997 if (aoptyTable == _mnoi && aoptyOp == _m && | |
2998 (uSizemaskOp == _32 && amodOp == _addr16 || | |
2999 uSizemaskOp == _48 && amodOp == _addr32 || | |
3000 uSizemaskOp == _48 && amodOp == _normal) | |
3001 ) | |
3002 goto Lok; | |
3003 goto EXIT; | |
3004 } | |
3005 Lok: | |
3006 | |
3007 // | |
3008 // Looks like a match so far, check to see if anything special is going on | |
3009 // | |
3010 amodTable = ASM_GET_amod(usTable); | |
3011 uRegmaskOp = ASM_GET_uRegmask(usOp); | |
3012 uRegmaskTable = ASM_GET_uRegmask(usTable); | |
3013 bRegmatch = ((!uRegmaskTable && !uRegmaskOp) || | |
3014 (uRegmaskTable & uRegmaskOp)); | |
3015 | |
3016 switch (amodTable) | |
3017 { | |
3018 case _normal: // Normal's match with normals | |
3019 switch(amodOp) { | |
3020 case _normal: | |
3021 case _addr16: | |
3022 case _addr32: | |
3023 case _fn16: | |
3024 case _fn32: | |
3025 case _flbl: | |
3026 bRetval = (bSizematch || bRegmatch); | |
3027 goto EXIT; | |
3028 default: | |
3029 goto EXIT; | |
3030 } | |
3031 case _rseg: | |
3032 case _rspecial: | |
3033 bRetval = (amodOp == amodTable && bRegmatch); | |
3034 goto EXIT; | |
3035 } | |
3036 EXIT: | |
3037 static if (false) { | |
3038 printf("OP : "); | |
3039 asm_output_flags(usOp); | |
3040 printf("\nTBL: "); | |
3041 asm_output_flags(usTable); | |
3042 writef(": %s\n", bRetval ? "MATCH" : "NOMATCH"); | |
3043 } | |
3044 return bRetval; | |
3045 | |
3046 Lmatch: | |
3047 //printf("match\n"); | |
3048 return 1; | |
3049 } | |
3050 | |
3051 void asm_output_flags(opflag_t usFlags) | |
3052 { | |
3053 ASM_OPERAND_TYPE aopty = ASM_GET_aopty(usFlags); | |
3054 ASM_MODIFIERS amod = ASM_GET_amod(usFlags); | |
3055 uint uRegmask = ASM_GET_uRegmask(usFlags); | |
3056 uint uSizemask = ASM_GET_uSizemask(usFlags); | |
3057 | |
3058 if (uSizemask == _anysize) | |
3059 printf("_anysize "); | |
3060 else if (uSizemask == 0) | |
3061 printf("0 "); | |
3062 else | |
3063 { | |
3064 if (uSizemask & _8) | |
3065 printf("_8 "); | |
3066 if (uSizemask & _16) | |
3067 printf("_16 "); | |
3068 if (uSizemask & _32) | |
3069 printf("_32 "); | |
3070 if (uSizemask & _48) | |
3071 printf("_48 "); | |
3072 } | |
3073 | |
3074 printf("_"); | |
3075 switch (aopty) { | |
3076 case ASM_OPERAND_TYPE._reg: | |
3077 printf("reg "); | |
3078 break; | |
3079 case ASM_OPERAND_TYPE._m: | |
3080 printf("m "); | |
3081 break; | |
3082 case ASM_OPERAND_TYPE._imm: | |
3083 printf("imm "); | |
3084 break; | |
3085 case ASM_OPERAND_TYPE._rel: | |
3086 printf("rel "); | |
3087 break; | |
3088 case ASM_OPERAND_TYPE._mnoi: | |
3089 printf("mnoi "); | |
3090 break; | |
3091 case ASM_OPERAND_TYPE._p: | |
3092 printf("p "); | |
3093 break; | |
3094 case ASM_OPERAND_TYPE._rm: | |
3095 printf("rm "); | |
3096 break; | |
3097 case ASM_OPERAND_TYPE._float: | |
3098 printf("float "); | |
3099 break; | |
3100 default: | |
3101 printf(" UNKNOWN "); | |
3102 } | |
3103 | |
3104 printf("_"); | |
3105 switch (amod) { | |
3106 case ASM_MODIFIERS._normal: | |
3107 printf("normal "); | |
3108 if (uRegmask & 1) printf("_al "); | |
3109 if (uRegmask & 2) printf("_ax "); | |
3110 if (uRegmask & 4) printf("_eax "); | |
3111 if (uRegmask & 8) printf("_dx "); | |
3112 if (uRegmask & 0x10) printf("_cl "); | |
3113 return; | |
3114 case ASM_MODIFIERS._rseg: | |
3115 printf("rseg "); | |
3116 break; | |
3117 case ASM_MODIFIERS._rspecial: | |
3118 printf("rspecial "); | |
3119 break; | |
3120 case ASM_MODIFIERS._addr16: | |
3121 printf("addr16 "); | |
3122 break; | |
3123 case ASM_MODIFIERS._addr32: | |
3124 printf("addr32 "); | |
3125 break; | |
3126 case ASM_MODIFIERS._fn16: | |
3127 printf("fn16 "); | |
3128 break; | |
3129 case ASM_MODIFIERS._fn32: | |
3130 printf("fn32 "); | |
3131 break; | |
3132 case ASM_MODIFIERS._flbl: | |
3133 printf("flbl "); | |
3134 break; | |
3135 default: | |
3136 printf("UNKNOWN "); | |
3137 break; | |
3138 } | |
3139 | |
3140 printf("uRegmask=x%02x", uRegmask); | |
3141 } | |
3142 | |
3143 OPND* asm_log_or_exp() | |
3144 { | |
3145 OPND* o1 = asm_log_and_exp(); | |
3146 OPND* o2; | |
3147 | |
3148 while (tok_value == TOK.TOKoror) | |
3149 { | |
3150 asm_token(); | |
3151 o2 = asm_log_and_exp(); | |
3152 if (asm_isint(o1) && asm_isint(o2)) | |
3153 o1.disp = o1.disp || o2.disp; | |
3154 else | |
3155 asmerr(ASMERRMSGS.EM_bad_integral_operand); // illegal operand | |
3156 o2.disp = 0; | |
3157 o1 = asm_merge_opnds(o1, o2); | |
3158 } | |
3159 return o1; | |
3160 } | |
3161 | |
3162 void asm_chktok(TOK toknum, uint errnum) | |
3163 { | |
3164 if (tok_value == toknum) | |
3165 asm_token(); // scan past token | |
3166 else | |
3167 /* When we run out of tokens, asmtok is null. | |
3168 * But when this happens when a ';' was hit. | |
3169 */ | |
3170 asmerr(errnum, asmtok ? asmtok.toChars() : ";"); | |
3171 } | |
3172 | |
3173 opflag_t asm_determine_float_flags(OPND* popnd) | |
3174 { | |
3175 //printf("asm_determine_float_flags()\n"); | |
3176 | |
3177 opflag_t us; | |
3178 opflag_t usFloat; | |
3179 | |
3180 // Insure that if it is a register, that it is not a normal processor | |
3181 // register. | |
3182 | |
3183 if (popnd.base && | |
3184 !popnd.s && !popnd.disp && !popnd.real_ | |
3185 && !(popnd.base.ty & (_r8 | _r16 | _r32))) | |
3186 { | |
3187 return popnd.base.ty; | |
3188 } | |
3189 if (popnd.pregDisp1 && !popnd.base) | |
3190 { | |
3191 us = asm_float_type_size(popnd.ptype, &usFloat); | |
3192 //printf("us = x%x, usFloat = x%x\n", us, usFloat); | |
3193 if (popnd.pregDisp1.ty & _r32) | |
3194 return(CONSTRUCT_FLAGS(us, _m, _addr32, usFloat)); | |
3195 else if (popnd.pregDisp1.ty & _r16) | |
3196 return(CONSTRUCT_FLAGS(us, _m, _addr16, usFloat)); | |
3197 } | |
3198 else if (popnd.s !is null) | |
3199 { | |
3200 us = asm_float_type_size(popnd.ptype, &usFloat); | |
3201 return CONSTRUCT_FLAGS(us, _m, _normal, usFloat); | |
3202 } | |
3203 | |
3204 if (popnd.segreg) | |
3205 { | |
3206 us = asm_float_type_size(popnd.ptype, &usFloat); | |
3207 if (I32) | |
3208 return(CONSTRUCT_FLAGS(us, _m, _addr32, usFloat)); | |
3209 else | |
3210 return(CONSTRUCT_FLAGS(us, _m, _addr16, usFloat)); | |
3211 } | |
3212 | |
3213 static if (false) { | |
3214 if (popnd.real_) | |
3215 { | |
3216 switch (popnd.ptype.ty) | |
3217 { | |
3218 case TY.Tfloat32: | |
3219 popnd.s = fconst(popnd.real_); | |
3220 return(CONSTRUCT_FLAGS(_32, _m, _normal, 0)); | |
3221 | |
3222 case TY.Tfloat64: | |
3223 popnd.s = dconst(popnd.real_); | |
3224 return(CONSTRUCT_FLAGS(0, _m, _normal, _64)); | |
3225 | |
3226 case TY.Tfloat80: | |
3227 popnd.s = ldconst(popnd.real_); | |
3228 return(CONSTRUCT_FLAGS(0, _m, _normal, _80)); | |
3229 } | |
3230 } | |
3231 } | |
3232 | |
3233 asmerr(ASMERRMSGS.EM_bad_float_op); // unknown operand for floating point instruction | |
3234 return 0; | |
3235 } | |
3236 | |
3237 uint asm_type_size(Type ptype) | |
3238 { | |
3239 //if (ptype) printf("asm_type_size('%s') = %d\n", ptype.toChars(), (int)ptype.size()); | |
3240 uint u = _anysize; | |
3241 if (ptype && ptype.ty != TY.Tfunction /*&& ptype.isscalar()*/) | |
3242 { | |
3243 switch (cast(int)ptype.size()) | |
3244 { | |
3245 case 0: asmerr(ASMERRMSGS.EM_bad_op, "0 size"); break; | |
3246 case 1: u = _8; break; | |
3247 case 2: u = _16; break; | |
3248 case 4: u = _32; break; | |
3249 case 6: u = _48; break; | |
3250 default: | |
3251 break; /// | |
3252 } | |
3253 } | |
3254 return u; | |
3255 } | |
3256 | |
3257 bool asm_match_float_flags(opflag_t usOp, opflag_t usTable) | |
3258 { | |
3259 ASM_OPERAND_TYPE aoptyTable; | |
3260 ASM_OPERAND_TYPE aoptyOp; | |
3261 ASM_MODIFIERS amodTable; | |
3262 ASM_MODIFIERS amodOp; | |
3263 uint uRegmaskTable; | |
3264 uint uRegmaskOp; | |
3265 ubyte bRegmatch; | |
3266 | |
3267 | |
3268 // | |
3269 // Check #1, if the sizes do not match, NO match | |
3270 // | |
3271 uRegmaskOp = ASM_GET_uRegmask(usOp); | |
3272 uRegmaskTable = ASM_GET_uRegmask(usTable); | |
3273 bRegmatch = (uRegmaskTable & uRegmaskOp) != 0; | |
3274 | |
3275 if (!(ASM_GET_uSizemask(usTable) & ASM_GET_uSizemask(usOp) || bRegmatch)) | |
3276 return false; | |
3277 | |
3278 aoptyTable = ASM_GET_aopty(usTable); | |
3279 aoptyOp = ASM_GET_aopty(usOp); | |
3280 // | |
3281 // The operand types must match, otherwise return false. | |
3282 // There is one exception for the _rm which is a table entry which matches | |
3283 // _reg or _m | |
3284 // | |
3285 if (aoptyTable != aoptyOp) | |
3286 { | |
3287 if (aoptyOp != _float) | |
3288 return false; | |
3289 } | |
3290 | |
3291 // | |
3292 // Looks like a match so far, check to see if anything special is going on | |
3293 // | |
3294 amodOp = ASM_GET_amod(usOp); | |
3295 amodTable = ASM_GET_amod(usTable); | |
3296 switch (amodTable) | |
3297 { | |
3298 // Normal's match with normals | |
3299 case _normal: | |
3300 switch(amodOp) | |
3301 { | |
3302 case _normal: | |
3303 case _addr16: | |
3304 case _addr32: | |
3305 case _fn16: | |
3306 case _fn32: | |
3307 case _flbl: | |
3308 return true; | |
3309 | |
3310 default: | |
3311 return false; | |
3312 } | |
3313 | |
3314 case _rseg: | |
3315 case _rspecial: | |
3316 return false; | |
3317 default: | |
3318 assert(0); | |
3319 } | |
3320 } | |
3321 | |
3322 OPND* asm_log_and_exp() | |
3323 { | |
3324 OPND* o1 = asm_inc_or_exp(); | |
3325 OPND* o2; | |
3326 | |
3327 while (tok_value == TOKandand) | |
3328 { | |
3329 asm_token(); | |
3330 o2 = asm_inc_or_exp(); | |
3331 if (asm_isint(o1) && asm_isint(o2)) | |
3332 o1.disp = o1.disp && o2.disp; | |
3333 else { | |
3334 asmerr(EM_bad_integral_operand); // illegal operand | |
3335 } | |
3336 o2.disp = 0; | |
3337 o1 = asm_merge_opnds(o1, o2); | |
3338 } | |
3339 return o1; | |
3340 } | |
3341 | |
3342 bool asm_isint(OPND *o) | |
3343 { | |
3344 if (!o || o.base || o.s) | |
3345 return false; | |
3346 | |
3347 //return o.disp != 0; | |
3348 return true; | |
3349 } | |
3350 | |
3351 /******************************* | |
3352 * Merge operands o1 and o2 into a single operand. | |
3353 */ | |
3354 | |
3355 OPND* asm_merge_opnds(OPND* o1, OPND* o2) | |
3356 { | |
3357 debug immutable(char)* psz; | |
3358 debug if (debuga) | |
3359 { | |
3360 printf("asm_merge_opnds(o1 = "); | |
3361 if (o1) asm_output_popnd(o1); | |
3362 printf(", o2 = "); | |
3363 if (o2) asm_output_popnd(o2); | |
3364 printf(")\n"); | |
3365 } | |
3366 | |
3367 if (!o1) | |
3368 return o2; | |
3369 if (!o2) | |
3370 return o1; | |
3371 version (EXTRA_DEBUG) { | |
3372 printf("Combining Operands: mult1 = %d, mult2 = %d", | |
3373 o1.uchMultiplier, o2.uchMultiplier); | |
3374 } | |
3375 /* combine the OPND's disp field */ | |
3376 if (o2.segreg) { | |
3377 if (o1.segreg) { | |
3378 debug psz = "o1.segment && o2.segreg".ptr; | |
3379 goto ILLEGAL_ADDRESS_ERROR; | |
3380 } | |
3381 else | |
3382 o1.segreg = o2.segreg; | |
3383 } | |
3384 | |
3385 // combine the OPND's symbol field | |
3386 if (o1.s && o2.s) | |
3387 { | |
3388 debug psz = "o1.s && os.s"; | |
3389 ILLEGAL_ADDRESS_ERROR: | |
3390 debug printf("Invalid addr because /%s/\n", psz); | |
3391 | |
3392 asmerr(EM_bad_addr_mode); // illegal addressing mode | |
3393 } | |
3394 else if (o2.s) | |
3395 o1.s = o2.s; | |
3396 else if (o1.s && o1.s.isTupleDeclaration()) | |
3397 { | |
3398 TupleDeclaration tup = o1.s.isTupleDeclaration(); | |
3399 | |
3400 size_t index = o2.disp; | |
3401 if (index >= tup.objects.dim) | |
3402 error(asmstate.loc, "tuple index %u exceeds %u", index, tup.objects.dim); | |
3403 else | |
3404 { | |
3405 Object o = cast(Object)tup.objects.data[index]; | |
3406 if (auto d = cast(Dsymbol)o) | |
3407 { | |
3408 o1.s = d; | |
3409 return o1; | |
3410 } | |
3411 else if (auto e = cast(Expression)o) | |
3412 { | |
3413 if (e.op == TOKvar) | |
3414 { | |
3415 o1.s = (cast(VarExp)e).var; | |
3416 return o1; | |
3417 } | |
3418 else if (e.op == TOKfunction) | |
3419 { | |
3420 o1.s = (cast(FuncExp)e).fd; | |
3421 return o1; | |
3422 } | |
3423 } | |
3424 error(asmstate.loc, "invalid asm operand %s", o1.s.toChars()); | |
3425 } | |
3426 } | |
3427 | |
3428 if (o1.disp && o2.disp) | |
3429 o1.disp += o2.disp; | |
3430 else if (o2.disp) | |
3431 o1.disp = o2.disp; | |
3432 | |
3433 /* combine the OPND's base field */ | |
3434 if (o1.base !is null && o2.base !is null) { | |
3435 debug psz = "o1.base != null && o2.base != null".ptr; | |
3436 goto ILLEGAL_ADDRESS_ERROR; | |
3437 } | |
3438 else if (o2.base) | |
3439 o1.base = o2.base; | |
3440 | |
3441 /* Combine the displacement register fields */ | |
3442 if (o2.pregDisp1) | |
3443 { | |
3444 if (o1.pregDisp2) | |
3445 { | |
3446 debug psz = "o2.pregDisp1 && o1.pregDisp2"; | |
3447 goto ILLEGAL_ADDRESS_ERROR; | |
3448 } | |
3449 else if (o1.pregDisp1) | |
3450 { | |
3451 if (o1.uchMultiplier || | |
3452 (o2.pregDisp1.val == _ESP && | |
3453 (o2.pregDisp1.ty & _r32) && | |
3454 !o2.uchMultiplier)) | |
3455 { | |
3456 o1.pregDisp2 = o1.pregDisp1; | |
3457 o1.pregDisp1 = o2.pregDisp1; | |
3458 } | |
3459 else | |
3460 o1.pregDisp2 = o2.pregDisp1; | |
3461 } | |
3462 else | |
3463 o1.pregDisp1 = o2.pregDisp1; | |
3464 } | |
3465 if (o2.pregDisp2) { | |
3466 if (o1.pregDisp2) { | |
3467 debug psz = "o1.pregDisp2 && o2.pregDisp2"; | |
3468 goto ILLEGAL_ADDRESS_ERROR; | |
3469 } | |
3470 else | |
3471 o1.pregDisp2 = o2.pregDisp2; | |
3472 } | |
3473 if (o2.uchMultiplier) | |
3474 { | |
3475 if (o1.uchMultiplier) | |
3476 { | |
3477 debug psz = "o1.uchMultiplier && o2.uchMultiplier"; | |
3478 goto ILLEGAL_ADDRESS_ERROR; | |
3479 } | |
3480 else | |
3481 o1.uchMultiplier = o2.uchMultiplier; | |
3482 } | |
3483 if (o2.ptype && !o1.ptype) | |
3484 o1.ptype = o2.ptype; | |
3485 if (o2.bOffset) | |
3486 o1.bOffset = o2.bOffset; | |
3487 if (o2.bSeg) | |
3488 o1.bSeg = o2.bSeg; | |
3489 | |
3490 if (o2.ajt && !o1.ajt) | |
3491 o1.ajt = o2.ajt; | |
3492 | |
3493 opnd_free(o2); | |
3494 version (EXTRA_DEBUG) { | |
3495 printf("Result = %d\n", o1.uchMultiplier); | |
3496 } | |
3497 debug if (debuga) | |
3498 { printf("Merged result = /"); | |
3499 asm_output_popnd(o1); | |
3500 printf("/\n"); | |
3501 } | |
3502 | |
3503 return o1; | |
3504 } | |
3505 | |
3506 opflag_t asm_float_type_size(Type ptype, opflag_t* pusFloat) | |
3507 { | |
3508 *pusFloat = 0; | |
3509 | |
3510 //printf("asm_float_type_size('%s')\n", ptype.toChars()); | |
3511 if (ptype && ptype.isscalar()) | |
3512 { | |
3513 int sz = cast(int)ptype.size(); | |
3514 if (sz == REALSIZE) | |
3515 { | |
3516 *pusFloat = _80; | |
3517 return 0; | |
3518 } | |
3519 switch (sz) | |
3520 { | |
3521 case 2: | |
3522 return _16; | |
3523 case 4: | |
3524 return _32; | |
3525 case 8: | |
3526 *pusFloat = _64; | |
3527 return 0; | |
3528 default: | |
3529 break; | |
3530 } | |
3531 } | |
3532 | |
3533 *pusFloat = _fanysize; | |
3534 return _anysize; | |
3535 } | |
3536 | |
3537 OPND* asm_inc_or_exp() | |
3538 { | |
3539 OPND* o1 = asm_xor_exp(); | |
3540 OPND* o2; | |
3541 | |
3542 while (tok_value == TOKor) | |
3543 { | |
3544 asm_token(); | |
3545 o2 = asm_xor_exp(); | |
3546 if (asm_isint(o1) && asm_isint(o2)) | |
3547 o1.disp |= o2.disp; | |
3548 else { | |
3549 asmerr(EM_bad_integral_operand); // illegal operand | |
3550 } | |
3551 o2.disp = 0; | |
3552 o1 = asm_merge_opnds(o1, o2); | |
3553 } | |
3554 return o1; | |
3555 } | |
3556 | |
3557 OPND* asm_xor_exp() | |
3558 { | |
3559 OPND* o1 = asm_and_exp(); | |
3560 OPND* o2; | |
3561 | |
3562 while (tok_value == TOKxor) | |
3563 { | |
3564 asm_token(); | |
3565 o2 = asm_and_exp(); | |
3566 if (asm_isint(o1) && asm_isint(o2)) | |
3567 o1.disp ^= o2.disp; | |
3568 else { | |
3569 asmerr(EM_bad_integral_operand); // illegal operand | |
3570 } | |
3571 o2.disp = 0; | |
3572 o1 = asm_merge_opnds(o1, o2); | |
3573 } | |
3574 return o1; | |
3575 } | |
3576 | |
3577 OPND* asm_and_exp() | |
3578 { | |
3579 OPND* o1 = asm_equal_exp(); | |
3580 OPND* o2; | |
3581 | |
3582 while (tok_value == TOKand) | |
3583 { | |
3584 asm_token(); | |
3585 o2 = asm_equal_exp(); | |
3586 if (asm_isint(o1) && asm_isint(o2)) | |
3587 o1.disp &= o2.disp; | |
3588 else { | |
3589 asmerr(EM_bad_integral_operand); // illegal operand | |
3590 } | |
3591 o2.disp = 0; | |
3592 o1 = asm_merge_opnds(o1, o2); | |
3593 } | |
3594 return o1; | |
3595 } | |
3596 | |
3597 OPND* asm_equal_exp() | |
3598 { | |
3599 OPND* o1 = asm_rel_exp(); | |
3600 OPND* o2; | |
3601 | |
3602 while (1) | |
3603 { | |
3604 switch (tok_value) | |
3605 { | |
3606 case TOKequal: | |
3607 asm_token(); | |
3608 o2 = asm_rel_exp(); | |
3609 if (asm_isint(o1) && asm_isint(o2)) | |
3610 o1.disp = o1.disp == o2.disp; | |
3611 else { | |
3612 asmerr(EM_bad_integral_operand); // illegal operand | |
3613 } | |
3614 o2.disp = 0; | |
3615 o1 = asm_merge_opnds(o1, o2); | |
3616 break; | |
3617 | |
3618 case TOKnotequal: | |
3619 asm_token(); | |
3620 o2 = asm_rel_exp(); | |
3621 if (asm_isint(o1) && asm_isint(o2)) | |
3622 o1.disp = o1.disp != o2.disp; | |
3623 else { | |
3624 asmerr(EM_bad_integral_operand); | |
3625 } | |
3626 o2.disp = 0; | |
3627 o1 = asm_merge_opnds(o1, o2); | |
3628 break; | |
3629 | |
3630 default: | |
3631 return o1; | |
3632 } | |
3633 } | |
3634 | |
3635 assert(false); | |
3636 } | |
3637 | |
3638 OPND* asm_rel_exp() | |
3639 { | |
3640 OPND* o1 = asm_shift_exp(); | |
3641 OPND* o2; | |
3642 | |
3643 TOK tok_save; | |
3644 | |
3645 while (1) | |
3646 { | |
3647 switch (tok_value) | |
3648 { | |
3649 case TOKgt: | |
3650 case TOKge: | |
3651 case TOKlt: | |
3652 case TOKle: | |
3653 tok_save = tok_value; | |
3654 asm_token(); | |
3655 o2 = asm_shift_exp(); | |
3656 if (asm_isint(o1) && asm_isint(o2)) | |
3657 { | |
3658 switch (tok_save) | |
3659 { | |
3660 case TOKgt: | |
3661 o1.disp = o1.disp > o2.disp; | |
3662 break; | |
3663 case TOKge: | |
3664 o1.disp = o1.disp >= o2.disp; | |
3665 break; | |
3666 case TOKlt: | |
3667 o1.disp = o1.disp < o2.disp; | |
3668 break; | |
3669 case TOKle: | |
3670 o1.disp = o1.disp <= o2.disp; | |
3671 break; | |
3672 } | |
3673 } | |
3674 else | |
3675 asmerr(EM_bad_integral_operand); | |
3676 o2.disp = 0; | |
3677 o1 = asm_merge_opnds(o1, o2); | |
3678 break; | |
3679 | |
3680 default: | |
3681 return o1; | |
3682 } | |
3683 } | |
3684 | |
3685 assert(false); | |
3686 } | |
3687 | |
3688 OPND* asm_shift_exp() | |
3689 { | |
3690 OPND* o1 = asm_add_exp(); | |
3691 OPND* o2; | |
3692 | |
3693 int op; | |
3694 TOK tk; | |
3695 | |
3696 while (tok_value == TOKshl || tok_value == TOKshr || tok_value == TOKushr) | |
3697 { | |
3698 tk = tok_value; | |
3699 asm_token(); | |
3700 o2 = asm_add_exp(); | |
3701 if (asm_isint(o1) && asm_isint(o2)) | |
3702 { if (tk == TOKshl) | |
3703 o1.disp <<= o2.disp; | |
3704 else if (tk == TOKushr) | |
3705 o1.disp = cast(uint)o1.disp >> o2.disp; | |
3706 else | |
3707 o1.disp >>= o2.disp; | |
3708 } | |
3709 else | |
3710 asmerr(EM_bad_integral_operand); | |
3711 o2.disp = 0; | |
3712 o1 = asm_merge_opnds(o1, o2); | |
3713 } | |
3714 return o1; | |
3715 } | |
3716 | |
3717 /******************************* | |
3718 */ | |
3719 | |
3720 OPND* asm_add_exp() | |
3721 { | |
3722 OPND* o1 = asm_mul_exp(); | |
3723 OPND* o2; | |
3724 | |
3725 while (1) | |
3726 { | |
3727 switch (tok_value) | |
3728 { | |
3729 case TOKadd: | |
3730 asm_token(); | |
3731 o2 = asm_mul_exp(); | |
3732 o1 = asm_merge_opnds(o1, o2); | |
3733 break; | |
3734 | |
3735 case TOKmin: | |
3736 asm_token(); | |
3737 o2 = asm_mul_exp(); | |
3738 if (asm_isint(o1) && asm_isint(o2)) | |
3739 { | |
3740 o1.disp -= o2.disp; | |
3741 o2.disp = 0; | |
3742 } | |
3743 else | |
3744 o2.disp = - o2.disp; | |
3745 o1 = asm_merge_opnds(o1, o2); | |
3746 break; | |
3747 | |
3748 default: | |
3749 return o1; | |
3750 } | |
3751 } | |
3752 | |
3753 assert(false); | |
3754 } | |
3755 | |
3756 /******************************* | |
3757 */ | |
3758 | |
3759 OPND* asm_mul_exp() | |
3760 { | |
3761 OPND* o1; | |
3762 OPND* o2; | |
3763 OPND* popndTmp; | |
3764 | |
3765 //printf("+asm_mul_exp()\n"); | |
3766 o1 = asm_br_exp(); | |
3767 while (1) | |
3768 { | |
3769 switch (tok_value) | |
3770 { | |
3771 case TOKmul: | |
3772 asm_token(); | |
3773 o2 = asm_br_exp(); | |
3774 version (EXTRA_DEBUG) { | |
3775 printf("Star o1.isint=%d, o2.isint=%d, lbra_seen=%d\n", | |
3776 asm_isint(o1), asm_isint(o2), asm_TKlbra_seen ); | |
3777 } | |
3778 if (asm_isNonZeroInt(o1) && asm_isNonZeroInt(o2)) | |
3779 o1.disp *= o2.disp; | |
3780 else if (asm_TKlbra_seen && o1.pregDisp1 && asm_isNonZeroInt(o2)) | |
3781 { | |
3782 o1.uchMultiplier = o2.disp; | |
3783 version (EXTRA_DEBUG) { | |
3784 printf("Multiplier: %d\n", o1.uchMultiplier); | |
3785 } | |
3786 } | |
3787 else if (asm_TKlbra_seen && o2.pregDisp1 && asm_isNonZeroInt(o1)) | |
3788 { | |
3789 popndTmp = o2; | |
3790 o2 = o1; | |
3791 o1 = popndTmp; | |
3792 o1.uchMultiplier = o2.disp; | |
3793 version (EXTRA_DEBUG) { | |
3794 printf("Multiplier: %d\n", | |
3795 o1.uchMultiplier); | |
3796 } | |
3797 } | |
3798 else if (asm_isint(o1) && asm_isint(o2)) | |
3799 o1.disp *= o2.disp; | |
3800 else | |
3801 asmerr(EM_bad_operand); | |
3802 o2.disp = 0; | |
3803 o1 = asm_merge_opnds(o1, o2); | |
3804 break; | |
3805 | |
3806 case TOKdiv: | |
3807 asm_token(); | |
3808 o2 = asm_br_exp(); | |
3809 if (asm_isint(o1) && asm_isint(o2)) | |
3810 o1.disp /= o2.disp; | |
3811 else | |
3812 asmerr(EM_bad_integral_operand); | |
3813 o2.disp = 0; | |
3814 o1 = asm_merge_opnds(o1, o2); | |
3815 break; | |
3816 | |
3817 case TOKmod: | |
3818 asm_token(); | |
3819 o2 = asm_br_exp(); | |
3820 if (asm_isint(o1) && asm_isint(o2)) | |
3821 o1.disp %= o2.disp; | |
3822 else | |
3823 asmerr(EM_bad_integral_operand); | |
3824 o2.disp = 0; | |
3825 o1 = asm_merge_opnds(o1, o2); | |
3826 break; | |
3827 | |
3828 default: | |
3829 return o1; | |
3830 } | |
3831 } | |
3832 | |
3833 return o1; | |
3834 } | |
3835 | |
3836 OPND* asm_br_exp() | |
3837 { | |
3838 //printf("asm_br_exp()\n"); | |
3839 | |
3840 OPND* o1 = asm_una_exp(); | |
3841 OPND* o2; | |
3842 Declaration s; | |
3843 | |
3844 while (1) | |
3845 { | |
3846 switch (tok_value) | |
3847 { | |
3848 case TOKlbracket: | |
3849 { | |
3850 version (EXTRA_DEBUG) { | |
3851 printf("Saw a left bracket\n"); | |
3852 } | |
3853 asm_token(); | |
3854 asm_TKlbra_seen++; | |
3855 o2 = asm_cond_exp(); | |
3856 asm_TKlbra_seen--; | |
3857 asm_chktok(TOKrbracket,EM_rbra); | |
3858 version (EXTRA_DEBUG) { | |
3859 printf("Saw a right bracket\n"); | |
3860 } | |
3861 o1 = asm_merge_opnds(o1, o2); | |
3862 if (tok_value == TOKidentifier) | |
3863 { o2 = asm_una_exp(); | |
3864 o1 = asm_merge_opnds(o1, o2); | |
3865 } | |
3866 break; | |
3867 } | |
3868 default: | |
3869 return o1; | |
3870 } | |
3871 } | |
3872 | |
3873 assert(false); | |
3874 } | |
3875 | |
3876 /******************************* | |
3877 */ | |
3878 | |
3879 OPND* asm_una_exp() | |
3880 { | |
3881 OPND* o1; | |
3882 int op; | |
3883 Type ptype; | |
3884 Type ptypeSpec; | |
3885 ASM_JUMPTYPE ajt = ASM_JUMPTYPE_UNSPECIFIED; | |
3886 char bPtr = 0; | |
3887 | |
3888 switch (cast(int)tok_value) | |
3889 { | |
3890 static if (false) { | |
3891 case TOKand: | |
3892 asm_token(); | |
3893 o1 = asm_una_exp(); | |
3894 break; | |
3895 | |
3896 case TOKmul: | |
3897 asm_token(); | |
3898 o1 = asm_una_exp(); | |
3899 ++o1.indirect; | |
3900 break; | |
3901 } | |
3902 case TOKadd: | |
3903 asm_token(); | |
3904 o1 = asm_una_exp(); | |
3905 break; | |
3906 | |
3907 case TOKmin: | |
3908 asm_token(); | |
3909 o1 = asm_una_exp(); | |
3910 if (asm_isint(o1)) | |
3911 o1.disp = -o1.disp; | |
3912 break; | |
3913 | |
3914 case TOKnot: | |
3915 asm_token(); | |
3916 o1 = asm_una_exp(); | |
3917 if (asm_isint(o1)) | |
3918 o1.disp = !o1.disp; | |
3919 break; | |
3920 | |
3921 case TOKtilde: | |
3922 asm_token(); | |
3923 o1 = asm_una_exp(); | |
3924 if (asm_isint(o1)) | |
3925 o1.disp = ~o1.disp; | |
3926 break; | |
3927 | |
3928 static if (false) { | |
3929 case TOKlparen: | |
3930 // stoken() is called directly here because we really | |
3931 // want the INT token to be an INT. | |
3932 stoken(); | |
3933 if (type_specifier(&ptypeSpec)) /* if type_name */ | |
3934 { | |
3935 ptype = declar_abstract(ptypeSpec); | |
3936 /* read abstract_declarator */ | |
3937 fixdeclar(ptype);/* fix declarator */ | |
3938 type_free(ptypeSpec);/* the declar() function | |
3939 allocates the typespec again */ | |
3940 chktok(TOKrparen,EM_rpar); | |
3941 ptype.Tcount--; | |
3942 goto CAST_REF; | |
3943 } | |
3944 else | |
3945 { | |
3946 type_free(ptypeSpec); | |
3947 o1 = asm_cond_exp(); | |
3948 chktok(TOKrparen, EM_rpar); | |
3949 } | |
3950 break; | |
3951 } | |
3952 | |
3953 case TOKidentifier: | |
3954 // Check for offset keyword | |
3955 if (asmtok.ident == Id.offset) | |
3956 { | |
3957 if (!global.params.useDeprecated) | |
3958 error(asmstate.loc, "offset deprecated, use offsetof"); | |
3959 goto Loffset; | |
3960 } | |
3961 if (asmtok.ident == Id.offsetof) | |
3962 { | |
3963 Loffset: | |
3964 asm_token(); | |
3965 o1 = asm_cond_exp(); | |
3966 if (!o1) | |
3967 o1 = opnd_calloc(); | |
3968 o1.bOffset= true; | |
3969 } | |
3970 else | |
3971 o1 = asm_primary_exp(); | |
3972 break; | |
3973 | |
3974 case ASMTK.ASMTKseg: | |
3975 asm_token(); | |
3976 o1 = asm_cond_exp(); | |
3977 if (!o1) | |
3978 o1 = opnd_calloc(); | |
3979 o1.bSeg= true; | |
3980 break; | |
3981 | |
3982 case TOKint16: | |
3983 if (asmstate.ucItype != ITjump) | |
3984 { | |
3985 ptype = Type.tint16; | |
3986 goto TYPE_REF; | |
3987 } | |
3988 ajt = ASM_JUMPTYPE_SHORT; | |
3989 asm_token(); | |
3990 goto JUMP_REF2; | |
3991 | |
3992 case ASMTKnear: | |
3993 ajt = ASM_JUMPTYPE_NEAR; | |
3994 goto JUMP_REF; | |
3995 | |
3996 case ASMTKfar: | |
3997 ajt = ASM_JUMPTYPE_FAR; | |
3998 JUMP_REF: | |
3999 asm_token(); | |
4000 asm_chktok(cast(TOK) ASMTKptr, EM_ptr_exp); | |
4001 JUMP_REF2: | |
4002 o1 = asm_cond_exp(); | |
4003 if (!o1) | |
4004 o1 = opnd_calloc(); | |
4005 o1.ajt= ajt; | |
4006 break; | |
4007 | |
4008 case TOKint8: | |
4009 ptype = Type.tint8; | |
4010 goto TYPE_REF; | |
4011 case TOKint32: | |
4012 case ASMTKdword: | |
4013 ptype = Type.tint32; | |
4014 goto TYPE_REF; | |
4015 case TOKfloat32: | |
4016 ptype = Type.tfloat32; | |
4017 goto TYPE_REF; | |
4018 case ASMTKqword: | |
4019 case TOKfloat64: | |
4020 ptype = Type.tfloat64; | |
4021 goto TYPE_REF; | |
4022 case TOKfloat80: | |
4023 ptype = Type.tfloat80; | |
4024 goto TYPE_REF; | |
4025 case ASMTKword: | |
4026 ptype = Type.tint16; | |
4027 TYPE_REF: | |
4028 bPtr = 1; | |
4029 asm_token(); | |
4030 asm_chktok(cast(TOK) ASMTKptr, EM_ptr_exp); | |
4031 CAST_REF: | |
4032 o1 = asm_cond_exp(); | |
4033 if (!o1) | |
4034 o1 = opnd_calloc(); | |
4035 o1.ptype = ptype; | |
4036 o1.bPtr = bPtr; | |
4037 break; | |
4038 | |
4039 default: | |
4040 o1 = asm_primary_exp(); | |
4041 break; | |
4042 } | |
4043 return o1; | |
4044 } | |
4045 | |
4046 bool asm_isNonZeroInt(OPND* o) | |
4047 { | |
4048 if (!o || o.base || o.s) | |
4049 return false; | |
4050 | |
4051 return o.disp != 0; | |
4052 } | |
4053 | |
4054 OPND* asm_primary_exp() | |
4055 { | |
4056 OPND* o1 = null; | |
4057 OPND* o2 = null; | |
4058 Type ptype; | |
4059 Dsymbol s; | |
4060 Dsymbol scopesym; | |
4061 | |
4062 TOK tkOld; | |
4063 int global; | |
4064 REG* regp; | |
4065 | |
4066 global = 0; | |
4067 switch (cast(int)tok_value) | |
4068 { | |
4069 case TOKdollar: | |
4070 o1 = opnd_calloc(); | |
4071 o1.s = asmstate.psDollar; | |
4072 asm_token(); | |
4073 break; | |
4074 | |
4075 static if (false) { | |
4076 case TOKthis: | |
4077 strcpy(tok.TKid,cpp_name_this); | |
4078 } | |
4079 case TOKidentifier: | |
4080 case_ident: | |
4081 o1 = opnd_calloc(); | |
4082 regp = asm_reg_lookup(asmtok.ident.toChars()); | |
4083 if (regp !is null) | |
4084 { | |
4085 asm_token(); | |
4086 // see if it is segment override (like SS:) | |
4087 if (!asm_TKlbra_seen && | |
4088 (regp.ty & _seg) && | |
4089 tok_value == TOKcolon) | |
4090 { | |
4091 o1.segreg = regp; | |
4092 asm_token(); | |
4093 o2 = asm_cond_exp(); | |
4094 o1 = asm_merge_opnds(o1, o2); | |
4095 } | |
4096 else if (asm_TKlbra_seen) | |
4097 { // should be a register | |
4098 if (o1.pregDisp1) | |
4099 asmerr(EM_bad_operand); | |
4100 else | |
4101 o1.pregDisp1 = regp; | |
4102 } | |
4103 else | |
4104 { if (o1.base == null) | |
4105 o1.base = regp; | |
4106 else | |
4107 asmerr(EM_bad_operand); | |
4108 } | |
4109 break; | |
4110 } | |
4111 // If floating point instruction and id is a floating register | |
4112 else if (asmstate.ucItype == ITfloat && | |
4113 asm_is_fpreg(asmtok.ident.toChars())) | |
4114 { | |
4115 asm_token(); | |
4116 if (tok_value == TOKlparen) | |
4117 { | |
4118 uint n; | |
4119 | |
4120 asm_token(); | |
4121 asm_chktok(TOKint32v, EM_num); | |
4122 n = cast(uint)asmtok.uns64value; | |
4123 if (n > 7) | |
4124 asmerr(EM_bad_operand); | |
4125 o1.base = &(aregFp[n]); | |
4126 asm_chktok(TOKrparen, EM_rpar); | |
4127 } | |
4128 else | |
4129 o1.base = ®Fp; | |
4130 } | |
4131 else | |
4132 { | |
4133 if (asmstate.ucItype == ITjump) | |
4134 { | |
4135 s = null; | |
4136 if (asmstate.sc.func.labtab) | |
4137 s = asmstate.sc.func.labtab.lookup(asmtok.ident); | |
4138 if (!s) | |
4139 s = asmstate.sc.search(Loc(0), asmtok.ident, &scopesym); | |
4140 if (!s) | |
4141 { // Assume it is a label, and define that label | |
4142 s = asmstate.sc.func.searchLabel(asmtok.ident); | |
4143 } | |
4144 } | |
4145 else | |
4146 s = asmstate.sc.search(Loc(0), asmtok.ident, &scopesym); | |
4147 | |
4148 if (!s) | |
4149 asmerr(EM_undefined, asmtok.toChars()); | |
4150 | |
4151 Identifier id = asmtok.ident; | |
4152 asm_token(); | |
4153 if (tok_value == TOKdot) | |
4154 { | |
4155 Expression e; | |
4156 VarExp v; | |
4157 | |
4158 e = new IdentifierExp(asmstate.loc, id); | |
4159 while (1) | |
4160 { | |
4161 asm_token(); | |
4162 if (tok_value == TOKidentifier) | |
4163 { | |
4164 e = new DotIdExp(asmstate.loc, e, asmtok.ident); | |
4165 asm_token(); | |
4166 if (tok_value != TOKdot) | |
4167 break; | |
4168 } | |
4169 else | |
4170 { | |
4171 asmerr(EM_ident_exp); | |
4172 break; | |
4173 } | |
4174 } | |
4175 e = e.semantic(asmstate.sc); | |
4176 e = e.optimize(WANTvalue | WANTinterpret); | |
4177 if (e.isConst()) | |
4178 { | |
4179 if (e.type.isintegral()) | |
4180 { | |
4181 o1.disp = cast(int)e.toInteger(); | |
4182 goto Lpost; | |
4183 } | |
4184 else if (e.type.isreal()) | |
4185 { | |
4186 o1.real_ = e.toReal(); | |
4187 o1.ptype = e.type; | |
4188 goto Lpost; | |
4189 } | |
4190 else | |
4191 { | |
4192 asmerr(EM_bad_op, e.toChars()); | |
4193 } | |
4194 } | |
4195 else if (e.op == TOKvar) | |
4196 { | |
4197 v = cast(VarExp)e; | |
4198 s = v.var; | |
4199 } | |
4200 else | |
4201 { | |
4202 asmerr(EM_bad_op, e.toChars()); | |
4203 } | |
4204 } | |
4205 | |
4206 asm_merge_symbol(o1,s); | |
4207 | |
4208 /* This attempts to answer the question: is | |
4209 * char[8] foo; | |
4210 * of size 1 or size 8? Presume it is 8 if foo | |
4211 * is the last token of the operand. | |
4212 */ | |
4213 if (o1.ptype && tok_value != TOKcomma && tok_value != TOKeof) | |
4214 { | |
4215 for (; | |
4216 o1.ptype.ty == Tsarray; | |
4217 o1.ptype = o1.ptype.nextOf()) | |
4218 { | |
4219 ; | |
4220 } | |
4221 } | |
4222 | |
4223 Lpost: | |
4224 static if (false) { | |
4225 // for [] | |
4226 if (tok_value == TOKlbracket) | |
4227 o1 = asm_prim_post(o1); | |
4228 } | |
4229 goto Lret; | |
4230 } | |
4231 break; | |
4232 | |
4233 case TOKint32v: | |
4234 case TOKuns32v: | |
4235 o1 = opnd_calloc(); | |
4236 o1.disp = asmtok.int32value; | |
4237 asm_token(); | |
4238 break; | |
4239 | |
4240 case TOKfloat32v: | |
4241 o1 = opnd_calloc(); | |
4242 o1.real_ = asmtok.float80value; | |
4243 o1.ptype = Type.tfloat32; | |
4244 asm_token(); | |
4245 break; | |
4246 | |
4247 case TOKfloat64v: | |
4248 o1 = opnd_calloc(); | |
4249 o1.real_ = asmtok.float80value; | |
4250 o1.ptype = Type.tfloat64; | |
4251 asm_token(); | |
4252 break; | |
4253 | |
4254 case TOKfloat80v: | |
4255 o1 = opnd_calloc(); | |
4256 o1.real_ = asmtok.float80value; | |
4257 o1.ptype = Type.tfloat80; | |
4258 asm_token(); | |
4259 break; | |
4260 | |
4261 case ASMTKlocalsize: | |
4262 o1 = opnd_calloc(); | |
4263 o1.s = asmstate.psLocalsize; | |
4264 o1.ptype = Type.tint32; | |
4265 asm_token(); | |
4266 break; | |
4267 | |
4268 default: | |
4269 break; /// | |
4270 } | |
4271 Lret: | |
4272 return o1; | |
4273 } | |
4274 | |
4275 void asm_merge_symbol(OPND* o1, Dsymbol s) | |
4276 { | |
4277 Type ptype; | |
4278 VarDeclaration v; | |
4279 EnumMember em; | |
4280 | |
4281 //printf("asm_merge_symbol(s = %s %s)\n", s.kind(), s.toChars()); | |
4282 s = s.toAlias(); | |
4283 //printf("s = %s %s\n", s.kind(), s.toChars()); | |
4284 if (s.isLabel()) | |
4285 { | |
4286 o1.s = s; | |
4287 return; | |
4288 } | |
4289 | |
4290 v = s.isVarDeclaration(); | |
4291 if (v) | |
4292 { | |
4293 if (v.isParameter()) | |
4294 asmstate.statement.refparam = true; | |
4295 | |
4296 v.checkNestedReference(asmstate.sc, asmstate.loc); | |
4297 static if (false) { | |
4298 if (!v.isDataseg() && v.parent != asmstate.sc.parent && v.parent) | |
4299 { | |
4300 asmerr(EM_uplevel, v.toChars()); | |
4301 } | |
4302 } | |
4303 if (v.storage_class & STCfield) | |
4304 { | |
4305 o1.disp += v.offset; | |
4306 goto L2; | |
4307 } | |
4308 if ((v.isConst() | |
4309 ///version (DMDV2) { | |
4310 || v.isInvariant() || v.storage_class & STCmanifest | |
4311 ///} | |
4312 ) && !v.type.isfloating() && v.init) | |
4313 { | |
4314 ExpInitializer ei = v.init.isExpInitializer(); | |
4315 | |
4316 if (ei) | |
4317 { | |
4318 o1.disp = cast(int)ei.exp.toInteger(); | |
4319 return; | |
4320 } | |
4321 } | |
4322 } | |
4323 em = s.isEnumMember(); | |
4324 if (em) | |
4325 { | |
4326 o1.disp = cast(int)em.value.toInteger(); | |
4327 return; | |
4328 } | |
4329 o1.s = s; // a C identifier | |
4330 L2: | |
4331 Declaration d = s.isDeclaration(); | |
4332 if (!d) | |
4333 { | |
4334 asmerr("%s %s is not a declaration", s.kind(), s.toChars()); | |
4335 } | |
4336 else if (d.getType()) | |
4337 asmerr(EM_type_as_operand, d.getType().toChars()); | |
4338 else if (d.isTupleDeclaration()) { | |
4339 ; | |
4340 } else | |
4341 o1.ptype = d.type.toBasetype(); | |
4342 } | |
4343 | |
4344 REG[63] regtab = | |
4345 [ | |
4346 {"AL", _AL, _r8 | _al,}, | |
4347 {"AH", _AH, _r8,}, | |
4348 {"AX", _AX, _r16 | _ax,}, | |
4349 {"EAX", _EAX, _r32 | _eax,}, | |
4350 {"BL", _BL, _r8,}, | |
4351 {"BH", _BH, _r8,}, | |
4352 {"BX", _BX, _r16,}, | |
4353 {"EBX", _EBX, _r32,}, | |
4354 {"CL", _CL, _r8 | _cl,}, | |
4355 {"CH", _CH, _r8,}, | |
4356 {"CX", _CX, _r16,}, | |
4357 {"ECX", _ECX, _r32,}, | |
4358 {"DL", _DL, _r8,}, | |
4359 {"DH", _DH, _r8,}, | |
4360 {"DX", _DX, _r16 | _dx,}, | |
4361 {"EDX", _EDX, _r32,}, | |
4362 {"BP", _BP, _r16,}, | |
4363 {"EBP", _EBP, _r32,}, | |
4364 {"SP", _SP, _r16,}, | |
4365 {"ESP", _ESP, _r32,}, | |
4366 {"DI", _DI, _r16,}, | |
4367 {"EDI", _EDI, _r32,}, | |
4368 {"SI", _SI, _r16,}, | |
4369 {"ESI", _ESI, _r32,}, | |
4370 {"ES", _ES, _seg | _es,}, | |
4371 {"CS", _CS, _seg | _cs,}, | |
4372 {"SS", _SS, _seg | _ss,}, | |
4373 {"DS", _DS, _seg | _ds,}, | |
4374 {"GS", _GS, _seg | _gs,}, | |
4375 {"FS", _FS, _seg | _fs,}, | |
4376 {"CR0", 0, _special | _crn,}, | |
4377 {"CR2", 2, _special | _crn,}, | |
4378 {"CR3", 3, _special | _crn,}, | |
4379 {"CR4", 4, _special | _crn,}, | |
4380 {"DR0", 0, _special | _drn,}, | |
4381 {"DR1", 1, _special | _drn,}, | |
4382 {"DR2", 2, _special | _drn,}, | |
4383 {"DR3", 3, _special | _drn,}, | |
4384 {"DR4", 4, _special | _drn,}, | |
4385 {"DR5", 5, _special | _drn,}, | |
4386 {"DR6", 6, _special | _drn,}, | |
4387 {"DR7", 7, _special | _drn,}, | |
4388 {"TR3", 3, _special | _trn,}, | |
4389 {"TR4", 4, _special | _trn,}, | |
4390 {"TR5", 5, _special | _trn,}, | |
4391 {"TR6", 6, _special | _trn,}, | |
4392 {"TR7", 7, _special | _trn,}, | |
4393 {"MM0", 0, _mm,}, | |
4394 {"MM1", 1, _mm,}, | |
4395 {"MM2", 2, _mm,}, | |
4396 {"MM3", 3, _mm,}, | |
4397 {"MM4", 4, _mm,}, | |
4398 {"MM5", 5, _mm,}, | |
4399 {"MM6", 6, _mm,}, | |
4400 {"MM7", 7, _mm,}, | |
4401 {"XMM0", 0, _xmm,}, | |
4402 {"XMM1", 1, _xmm,}, | |
4403 {"XMM2", 2, _xmm,}, | |
4404 {"XMM3", 3, _xmm,}, | |
4405 {"XMM4", 4, _xmm,}, | |
4406 {"XMM5", 5, _xmm,}, | |
4407 {"XMM6", 6, _xmm,}, | |
4408 {"XMM7", 7, _xmm,}, | |
4409 ]; | |
4410 | |
4411 REG* asm_reg_lookup(string s) | |
4412 { | |
4413 //dbg_printf("asm_reg_lookup('%s')\n",s); | |
4414 | |
4415 for (int i = 0; i < regtab.length; i++) | |
4416 { | |
4417 if (regtab[i].regstr[0..min(s.length, $)] == s) | |
4418 { | |
4419 return ®tab[i]; | |
4420 } | |
4421 } | |
4422 | |
4423 return null; | |
4424 } | |
4425 | |
4426 int asm_is_fpreg(string szReg) | |
4427 { | |
4428 static if (true) { | |
4429 return(szReg.length == 2 && szReg[0] == 'S' && | |
4430 szReg[1] == 'T'); | |
4431 } else { | |
4432 return(szReg.length == 2 && (szReg[0] == 's' || szReg[0] == 'S') && | |
4433 (szReg[1] == 't' || szReg[1] == 'T')); | |
4434 } | |
4435 } |