Mercurial > projects > ddmd
annotate dmd/backend/iasm.d @ 14:2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
| author | Robert Clipsham <robert@octarineparrot.com> |
|---|---|
| date | Sun, 04 Apr 2010 02:06:32 +0100 |
| parents | 63623152e82a |
| children | 1628b221808d |
| 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
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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 | |
|
14
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
80 extern (C) code * cat(code *c1,code *c2); |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
81 |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
82 version (Bug4059) |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
83 { |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
84 private extern(C) OP* _Z13asm_op_lookupPKc(const(char)* s); |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
85 private extern(C) int _Z6binaryPKcPS0_i(const(char)* p , const(char)** tab, int high); |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
86 OP* asm_op_lookup(const(char)* s) { return _Z13asm_op_lookupPKc(s); } |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
87 int binary(const(char)* p , const(char)** tab, int high) { return _Z6binaryPKcPS0_i(p, tab, high); } |
| 0 | 88 } |
|
14
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
89 else |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
90 { |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
91 OP* asm_op_lookup(const(char)* s); |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
92 int binary(const(char)* p , const(char)** tab, int high); |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
93 } |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
94 |
|
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
95 extern (C++) //extern |
| 0 | 96 { |
| 97 void init_optab(); | |
| 98 const(char)* asm_opstr(OP* pop); | |
| 99 } | |
| 100 | |
| 101 static ubyte asm_TKlbra_seen = false; | |
| 102 | |
| 103 struct REG | |
| 104 { | |
| 105 char regstr[6]; | |
| 106 ubyte val; | |
| 107 opflag_t ty; | |
| 108 } | |
| 109 | |
| 110 OP* asm_op_lookup(string s) | |
| 111 { | |
| 112 return asm_op_lookup(toStringz(s)); | |
| 113 } | |
| 114 | |
| 115 // For amod (3 bits) | |
| 116 enum ASM_MODIFIERS : ubyte | |
| 117 { | |
| 118 _normal, // Normal register value | |
| 119 _rseg, // Segment registers | |
| 120 _rspecial, // Special registers | |
| 121 _addr16, // 16 bit address | |
| 122 _addr32, // 32 bit address | |
| 123 _fn16, // 16 bit function call | |
| 124 _fn32, // 32 bit function call | |
| 125 _flbl // Label | |
| 126 } | |
| 127 | |
| 128 mixin(BringToCurrentScope!(ASM_MODIFIERS)); | |
| 129 | |
| 130 // For aopty (3 bits) | |
| 131 enum ASM_OPERAND_TYPE : ubyte | |
| 132 { | |
| 133 _reg, // _r8, _r16, _r32 | |
| 134 _m, // _m8, _m16, _m32, _m48 | |
| 135 _imm, // _imm8, _imm16, _imm32 | |
| 136 _rel, // _rel8, _rel16, _rel32 | |
| 137 _mnoi, // _m1616, _m1632 | |
| 138 _p, // _p1616, _p1632 | |
| 139 _rm, // _rm8, _rm16, _rm32 | |
| 140 _float // Floating point operand, look at cRegmask for the | |
| 141 // actual size | |
| 142 } | |
| 143 | |
| 144 mixin(BringToCurrentScope!(ASM_OPERAND_TYPE)); | |
| 145 | |
| 146 /* Register definitions */ | |
| 147 | |
| 148 enum AX = 0; | |
| 149 enum CX = 1; | |
| 150 enum DX = 2; | |
| 151 enum BX = 3; | |
| 152 enum SP = 4; | |
| 153 enum BP = 5; | |
| 154 enum SI = 6; | |
| 155 enum DI = 7; | |
| 156 | |
| 157 enum ES = 9; | |
| 158 enum PSW = 10; | |
| 159 enum STACK = 11; // top of stack | |
| 160 enum MEM = 12; // memory | |
| 161 enum OTHER = 13; // other things | |
| 162 enum ST0 = 14; // 8087 top of stack register | |
| 163 enum ST01 = 15; // top two 8087 registers; for complex types | |
| 164 | |
| 165 enum NOREG = 100; // no register | |
| 166 | |
| 167 enum AL = 0; | |
| 168 enum CL = 1; | |
| 169 enum DL = 2; | |
| 170 enum BL = 3; | |
| 171 enum AH = 4; | |
| 172 enum CH = 5; | |
| 173 enum DH = 6; | |
| 174 enum BH = 7; | |
| 175 | |
| 176 enum mAX = 1; | |
| 177 enum mCX = 2; | |
| 178 enum mDX = 4; | |
| 179 enum mBX = 8; | |
| 180 enum mSP = 0x10; | |
| 181 enum mBP = 0x20; | |
| 182 enum mSI = 0x40; | |
| 183 enum mDI = 0x80; | |
| 184 enum mES = (1 << ES); // 0x200 | |
| 185 enum mPSW = (1 << PSW); // 0x400 | |
| 186 | |
| 187 enum mSTACK = (1 << STACK); // 0x800 | |
| 188 enum mMEM = (1 << MEM); // 0x1000 | |
| 189 enum mOTHER = (1 << OTHER); // 0x2000 | |
| 190 | |
| 191 enum mST0 = (1 << ST0); // 0x4000 | |
| 192 enum mST01 = (1 << ST01); // 0x8000 | |
| 193 | |
| 194 version (XXX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS | |
| 195 // To support positional independent code, | |
| 196 // must be able to remove BX from available registers | |
| 197 ///extern regm_t ALLREGS; | |
| 198 ///#define ALLREGS_INIT (mAX|mBX|mCX|mDX|mSI|mDI) | |
| 199 ///#define ALLREGS_INIT_PIC (mAX|mCX|mDX|mSI|mDI) | |
| 200 ///extern regm_t BYTEREGS; | |
| 201 ///#define BYTEREGS_INIT (mAX|mBX|mCX|mDX) | |
| 202 ///#define BYTEREGS_INIT_PIC (mAX|mCX|mDX) | |
| 203 } else { | |
| 204 enum ALLREGS = (mAX|mBX|mCX|mDX|mSI|mDI); | |
| 205 ///#define ALLREGS_INIT ALLREGS | |
| 206 ///#undef BYTEREGS | |
| 207 ///#define BYTEREGS (mAX|mBX|mCX|mDX) | |
| 208 } | |
| 209 | |
| 210 //#define NPTRSIZE tysize[TYnptr] | |
| 211 enum NPTRSIZE = 4; | |
| 212 | |
| 213 uint ADDFWAIT() { return 0; } | |
| 214 | |
| 215 enum I16 = 0; // no 16 bit code for D | |
| 216 enum I32 = (NPTRSIZE == 4); | |
| 217 enum I64 = (NPTRSIZE == 8); // true if generating 64 bit code | |
| 218 | |
| 219 // For uRegmask (6 bits) | |
| 220 | |
| 221 // uRegmask flags when aopty == _float | |
| 222 enum _rst = 0x1; | |
| 223 enum _rsti = 0x2; | |
| 224 enum _64 = 0x4; | |
| 225 enum _80 = 0x8; | |
| 226 enum _128 = 0x40; | |
| 227 enum _112 = 0x10; | |
| 228 enum _224 = 0x20; | |
| 229 | |
| 230 ushort CONSTRUCT_FLAGS(ushort uSizemask, ubyte aopty, ubyte amod, ushort uRegmask ) { | |
| 231 return cast(ushort)( (uSizemask) | (aopty) << 4 | (amod) << 7 | (uRegmask) << 10); | |
| 232 } | |
| 233 | |
| 234 // _seg register values (amod == _rseg) | |
| 235 // | |
| 236 enum _ds = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x01 ); | |
| 237 enum _es = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x02 ); | |
| 238 enum _ss = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x04 ); | |
| 239 enum _fs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x08 ); | |
| 240 enum _gs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x10 ); | |
| 241 enum _cs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x20 ); | |
| 242 | |
| 243 // | |
| 244 // _special register values | |
| 245 // | |
| 246 enum _crn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x01 ); // CRn register (0,2,3) | |
| 247 enum _drn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x02 ); // DRn register (0-3,6-7) | |
| 248 enum _trn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x04 ); // TRn register (3-7) | |
| 249 enum _mm = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x08 ); // MMn register (0-7) | |
| 250 enum _xmm = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x10 ); // XMMn register (0-7) | |
| 251 | |
| 252 // | |
| 253 // Default register values | |
| 254 // | |
| 255 enum _al = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x01 ); // AL register | |
| 256 enum _ax = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x02 ); // AX register | |
| 257 enum _eax = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x04 ); // EAX register | |
| 258 enum _dx = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x08 ); // DX register | |
| 259 enum _cl = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x10 ); // CL register | |
| 260 | |
| 261 enum _rplus_r = 0x20; | |
| 262 //#define _plus_r CONSTRUCT_FLAGS( 0, 0, 0, _rplus_r ) | |
| 263 // Add the register to the opcode (no mod r/m) | |
| 264 | |
| 265 ubyte ASM_GET_uSizemask(uint us) { | |
| 266 return ((us) & 0x0F); | |
| 267 } | |
| 268 | |
| 269 ASM_OPERAND_TYPE ASM_GET_aopty(uint us) { | |
| 270 return cast(ASM_OPERAND_TYPE)(((us) & 0x70) >> 4); | |
| 271 } | |
| 272 | |
| 273 ASM_MODIFIERS ASM_GET_amod(uint us) { | |
| 274 return (cast(ASM_MODIFIERS)(((us) & 0x380) >> 7)); | |
| 275 } | |
| 276 | |
| 277 ubyte ASM_GET_uRegmask(uint us) { | |
| 278 return (((us) & 0xFC00) >> 10); | |
| 279 } | |
| 280 | |
| 281 enum _st = CONSTRUCT_FLAGS( 0, _float, 0, _rst ); // stack register 0 | |
| 282 enum _m112 = CONSTRUCT_FLAGS( 0, _m, 0, _112 ); | |
| 283 enum _m224 = CONSTRUCT_FLAGS( 0, _m, 0, _224 ); | |
| 284 enum _m512 = _m224; | |
| 285 enum _sti = CONSTRUCT_FLAGS( 0, _float, 0, _rsti ); | |
| 286 | |
| 287 REG regFp = { "ST", 0, _st }; | |
| 288 | |
| 289 REG[8] aregFp = [ | |
| 290 { "ST(0)", 0, _sti }, | |
| 291 { "ST(1)", 1, _sti }, | |
| 292 { "ST(2)", 2, _sti }, | |
| 293 { "ST(3)", 3, _sti }, | |
| 294 { "ST(4)", 4, _sti }, | |
| 295 { "ST(5)", 5, _sti }, | |
| 296 { "ST(6)", 6, _sti }, | |
| 297 { "ST(7)", 7, _sti } | |
| 298 ]; | |
| 299 | |
| 300 // For uSizemask (4 bits) | |
| 301 enum _8 = 0x1; | |
| 302 enum _16 = 0x2; | |
| 303 enum _32 = 0x4; | |
| 304 enum _48 = 0x8; | |
| 305 enum _anysize = (_8 | _16 | _32 | _48 ); | |
| 306 | |
| 307 enum _modrm = 0x10; | |
| 308 | |
| 309 //// This is for when the reg field of modregrm specifies which instruction it is | |
| 310 enum NUM_MASK = 0x7; | |
| 311 //#define _0 (0x0 | _modrm) // insure that some _modrm bit is set | |
| 312 //#define _1 0x1 // with _0 | |
| 313 //#define _2 0x2 | |
| 314 //#define _3 0x3 | |
| 315 //#define _4 0x4 | |
| 316 //#define _5 0x5 | |
| 317 //#define _6 0x6 | |
| 318 //#define _7 0x7 | |
| 319 // | |
| 320 //#define _modrm 0x10 | |
| 321 // | |
| 322 //#define _r _modrm | |
| 323 //#define _cb _modrm | |
| 324 //#define _cw _modrm | |
| 325 //#define _cd _modrm | |
| 326 //#define _cp _modrm | |
| 327 //#define _ib 0 | |
| 328 //#define _iw 0 | |
| 329 //#define _id 0 | |
| 330 //#define _rb 0 | |
| 331 //#define _rw 0 | |
| 332 //#define _rd 0 | |
| 333 enum _16_bit = 0x20; | |
| 334 enum _32_bit = 0x40; | |
| 335 enum _I386 = 0x80; // opcode is only for 386 and later | |
| 336 enum _16_bit_addr = 0x100; | |
| 337 enum _32_bit_addr = 0x200; | |
| 338 enum _fwait = 0x400; // Add an FWAIT prior to the instruction opcode | |
| 339 enum _nfwait = 0x800; // Do not add an FWAIT prior to the instruction | |
| 340 | |
| 341 enum MOD_MASK = 0xF000; // Mod mask | |
| 342 enum _modsi = 0x1000; // Instruction modifies SI | |
| 343 enum _moddx = 0x2000; // Instruction modifies DX | |
| 344 enum _mod2 = 0x3000; // Instruction modifies second operand | |
| 345 enum _modax = 0x4000; // Instruction modifies AX | |
| 346 enum _modnot1 = 0x5000; // Instruction does not modify first operand | |
| 347 enum _modaxdx = 0x6000; // instruction modifies AX and DX | |
| 348 enum _moddi = 0x7000; // Instruction modifies DI | |
| 349 enum _modsidi = 0x8000; // Instruction modifies SI and DI | |
| 350 enum _modcx = 0x9000; // Instruction modifies CX | |
| 351 enum _modes = 0xa000; // Instruction modifies ES | |
| 352 enum _modall = 0xb000; // Instruction modifies all register values | |
| 353 enum _modsiax = 0xc000; // Instruction modifies AX and SI | |
| 354 enum _modsinot1 = 0xd000; // Instruction modifies SI and not first param | |
| 355 | |
| 356 ///////////////////////////////////////////////// | |
| 357 // Operand flags - usOp1, usOp2, usOp3 | |
| 358 // | |
| 359 | |
| 360 alias ushort opflag_t; | |
| 361 | |
| 362 // Operand flags for normal opcodes | |
| 363 | |
| 364 enum _r8 = CONSTRUCT_FLAGS( _8, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
| 365 enum _r16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
| 366 enum _r32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
| 367 enum _m8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 368 enum _m16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 369 enum _m32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 370 enum _m48 = CONSTRUCT_FLAGS( _48, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 371 enum _m64 = CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 372 enum _m128 = CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 373 enum _rm8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0 ); | |
| 374 enum _rm16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0 ); | |
| 375 enum _rm32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0); | |
| 376 enum _r32m16 = CONSTRUCT_FLAGS(_32|_16, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0); | |
| 377 enum _imm8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0 ); | |
| 378 enum _imm16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
| 379 enum _imm32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
| 380 enum _rel8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
| 381 enum _rel16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
| 382 enum _rel32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
| 383 enum _p1616 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._p, ASM_MODIFIERS._normal, 0); | |
| 384 enum _m1616 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._mnoi, ASM_MODIFIERS._normal, 0); | |
| 385 enum _p1632 = CONSTRUCT_FLAGS(_48, ASM_OPERAND_TYPE._p, ASM_MODIFIERS._normal, 0 ); | |
| 386 enum _m1632 = CONSTRUCT_FLAGS(_48, ASM_OPERAND_TYPE._mnoi, ASM_MODIFIERS._normal, 0); | |
| 387 enum _special = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0 ); | |
| 388 enum _seg = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rseg, 0 ); | |
| 389 enum _a16 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._addr16, 0 ); | |
| 390 enum _a32 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._addr32, 0 ); | |
| 391 enum _f16 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._fn16, 0); | |
| 392 // Near function pointer | |
| 393 enum _f32 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._fn32, 0); | |
| 394 // Far function pointer | |
| 395 enum _lbl = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._flbl, 0 ); | |
| 396 // Label (in current function) | |
| 397 | |
| 398 enum _mmm32 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _32); | |
| 399 enum _mmm64 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _64); | |
| 400 enum _mmm128 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _128); | |
| 401 | |
| 402 enum _xmm_m32 = CONSTRUCT_FLAGS( _32, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
| 403 enum _xmm_m64 =CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
| 404 enum _xmm_m128 =CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
| 405 | |
| 406 enum _moffs8 = (_rel8); | |
| 407 enum _moffs16 = (_rel16 ); | |
| 408 enum _moffs32 = (_rel32 ); | |
| 409 | |
| 410 //////////////////////////////////////////////////////////////////// | |
| 411 // Operand flags for floating point opcodes are all just aliases for | |
| 412 // normal opcode variants and only asm_determine_operator_flags should | |
| 413 // need to care. | |
| 414 // | |
| 415 enum _fm80 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _80 ); | |
| 416 enum _fm64 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _64 ); | |
| 417 enum _fm128 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _128 ); | |
| 418 enum _fanysize = (_64 | _80 | _112 | _224); | |
| 419 | |
| 420 enum _AL =0; | |
| 421 enum _AH =4; | |
| 422 enum _AX =0; | |
| 423 enum _EAX =0; | |
| 424 enum _BL =3; | |
| 425 enum _BH =7; | |
| 426 enum _BX =3; | |
| 427 enum _EBX =3; | |
| 428 enum _CL =1; | |
| 429 enum _CH =5; | |
| 430 enum _CX =1; | |
| 431 enum _ECX =1; | |
| 432 enum _DL =2; | |
| 433 enum _DH =6; | |
| 434 enum _DX =2; | |
| 435 enum _EDX =2; | |
| 436 enum _BP =5; | |
| 437 enum _EBP =5; | |
| 438 enum _SP =4; | |
| 439 enum _ESP =4; | |
| 440 enum _DI =7; | |
| 441 enum _EDI =7; | |
| 442 enum _SI =6; | |
| 443 enum _ESI =6; | |
| 444 enum _ES =0; | |
| 445 enum _CS =1; | |
| 446 enum _SS =2; | |
| 447 enum _DS =3; | |
| 448 enum _GS =5; | |
| 449 enum _FS =4; | |
| 450 | |
| 451 enum ASM = 0x36; // string of asm bytes, actually an SS: opcode | |
| 452 enum ASM_END = 0xffff; // special opcode meaning end of table | |
| 453 | |
| 454 struct PTRNTAB0 | |
| 455 { | |
| 456 uint usOpcode; | |
| 457 // #define ASM_END 0xffff // special opcode meaning end of table | |
| 458 ushort usFlags; | |
| 459 } | |
| 460 | |
| 461 struct PTRNTAB1 | |
| 462 { | |
| 463 uint usOpcode; | |
| 464 ushort usFlags; | |
| 465 opflag_t usOp1; | |
| 466 } | |
| 467 | |
| 468 struct PTRNTAB2 | |
| 469 { | |
| 470 uint usOpcode; | |
| 471 ushort usFlags; | |
| 472 opflag_t usOp1; | |
| 473 opflag_t usOp2; | |
| 474 } | |
| 475 | |
| 476 struct PTRNTAB3 | |
| 477 { | |
| 478 uint usOpcode; | |
| 479 ushort usFlags; | |
| 480 opflag_t usOp1; | |
| 481 opflag_t usOp2; | |
| 482 opflag_t usOp3; | |
| 483 } | |
| 484 | |
| 485 union PTRNTAB | |
| 486 { | |
| 487 PTRNTAB0 *pptb0; | |
| 488 PTRNTAB1 *pptb1; | |
| 489 PTRNTAB2 *pptb2; | |
| 490 PTRNTAB3 *pptb3; | |
| 491 } | |
| 492 | |
| 493 struct OP | |
| 494 { | |
| 495 ubyte usNumops; | |
| 496 PTRNTAB ptb; | |
| 497 } | |
| 498 | |
| 499 enum ASM_JUMPTYPE | |
| 500 { | |
| 501 ASM_JUMPTYPE_UNSPECIFIED, | |
| 502 ASM_JUMPTYPE_SHORT, | |
| 503 ASM_JUMPTYPE_NEAR, | |
| 504 ASM_JUMPTYPE_FAR | |
| 505 } // ajt | |
| 506 | |
| 507 mixin(BringToCurrentScope!(ASM_JUMPTYPE)); | |
| 508 | |
| 509 struct OPND | |
| 510 { | |
| 511 REG* base; // if plain register | |
| 512 REG* pregDisp1; // if [register1] | |
| 513 REG* pregDisp2; | |
| 514 REG* segreg; // if segment override | |
| 515 char indirect = 0; // if had a '*' or '.' | |
| 516 char bOffset = 0; // if 'offset' keyword | |
| 517 char bSeg = 0; // if 'segment' keyword | |
| 518 char bPtr = 0; // if 'ptr' keyword | |
| 519 uint uchMultiplier; // register multiplier; valid values are 0,1,2,4,8 | |
| 520 opflag_t usFlags; | |
| 521 Dsymbol s; | |
| 522 int disp; | |
| 523 real real_ = 0; | |
| 524 Type ptype; | |
| 525 ASM_JUMPTYPE ajt; | |
| 526 } | |
| 527 | |
| 528 struct ASM_STATE | |
| 529 { | |
| 530 ubyte ucItype; // Instruction type | |
| 531 Loc loc; | |
| 532 ubyte bInit; | |
| 533 LabelDsymbol psDollar; | |
| 534 Dsymbol psLocalsize; | |
| 535 jmp_buf env; | |
| 536 ubyte bReturnax; | |
| 537 AsmStatement statement; | |
| 538 Scope sc; | |
| 539 } | |
| 540 | |
| 541 enum IT | |
| 542 { | |
| 543 ITprefix = 0x10, // special prefix | |
| 544 ITjump = 0x20, // jump instructions CALL, Jxx and LOOPxx | |
| 545 ITimmed = 0x30, // value of an immediate operand controls | |
| 546 // code generation | |
| 547 ITopt = 0x40, // not all operands are required | |
| 548 ITshift = 0x50, // rotate and shift instructions | |
| 549 ITfloat = 0x60, // floating point coprocessor instructions | |
| 550 ITdata = 0x70, // DB, DW, DD, DQ, DT pseudo-ops | |
| 551 ITaddr = 0x80, // DA (define addresss) pseudo-op | |
| 552 ITMASK = 0xF0, | |
| 553 ITSIZE = 0x0F, // mask for size | |
| 554 } | |
| 555 | |
| 556 alias IT.ITprefix ITprefix; | |
| 557 alias IT.ITjump ITjump; | |
| 558 alias IT.ITimmed ITimmed; | |
| 559 alias IT.ITopt ITopt; | |
| 560 alias IT.ITshift ITshift; | |
| 561 alias IT.ITfloat ITfloat; | |
| 562 alias IT.ITdata ITdata; | |
| 563 alias IT.ITaddr ITaddr; | |
| 564 alias IT.ITMASK ITMASK; | |
| 565 alias IT.ITSIZE ITSIZE; | |
| 566 | |
| 567 __gshared ASM_STATE asmstate; | |
| 568 __gshared Token* asmtok; | |
| 569 __gshared TOK tok_value; | |
| 570 | |
| 571 // Additional tokens for the inline assembler | |
| 572 enum ASMTK | |
| 573 { | |
| 574 ASMTKlocalsize = TOKMAX + 1, | |
| 575 ASMTKdword, | |
| 576 ASMTKeven, | |
| 577 ASMTKfar, | |
| 578 ASMTKnaked, | |
| 579 ASMTKnear, | |
| 580 ASMTKptr, | |
| 581 ASMTKqword, | |
| 582 ASMTKseg, | |
| 583 ASMTKword, | |
| 584 ASMTKmax = ASMTKword - (TOK.TOKMAX + 1) + 1 | |
| 585 } | |
| 586 | |
| 587 mixin(BringToCurrentScope!(ASMTK)); | |
| 588 | |
| 589 enum OP_DB | |
| 590 { | |
| 591 ///version (SCPP) { | |
| 592 /// // These are the number of bytes | |
| 593 /// OPdb = 1, | |
| 594 /// OPdw = 2, | |
| 595 /// OPdd = 4, | |
| 596 /// OPdq = 8, | |
| 597 /// OPdt = 10, | |
| 598 /// OPdf = 4, | |
| 599 /// OPde = 10, | |
| 600 /// OPds = 2, | |
| 601 /// OPdi = 4, | |
| 602 /// OPdl = 8, | |
| 603 ///} | |
| 604 ///version (MARS) { | |
| 605 // Integral types | |
| 606 OPdb, | |
| 607 OPds, | |
| 608 OPdi, | |
| 609 OPdl, | |
| 610 | |
| 611 // Float types | |
| 612 OPdf, | |
| 613 OPdd, | |
| 614 OPde, | |
| 615 | |
| 616 // Deprecated | |
| 617 OPdw = OPds, | |
| 618 OPdq = OPdl, | |
| 619 OPdt = OPde, | |
| 620 ///} | |
| 621 } | |
| 622 | |
| 623 OPND* opnd_calloc() | |
| 624 { | |
| 625 return new OPND(); | |
| 626 } | |
| 627 | |
| 628 void opnd_free(OPND* o) | |
| 629 { | |
| 630 delete o; | |
| 631 } | |
| 632 | |
| 633 /****************************** | |
| 634 * Convert assembly instruction into a code, and append | |
| 635 * it to the code generated for this block. | |
| 636 */ | |
| 637 | |
| 638 code* asm_emit(Loc loc, uint usNumops, PTRNTAB ptb, OP* pop, OPND* popnd1, OPND* popnd2, OPND* popnd3) | |
| 639 { | |
| 640 debug { | |
| 641 ubyte auchOpcode[16]; | |
| 642 uint usIdx = 0; | |
| 643 void emit(ubyte op) { | |
| 644 auchOpcode[usIdx++] = op; | |
| 645 } | |
| 646 } else { | |
| 647 void emit(ubyte op) {} | |
| 648 } | |
| 649 Identifier id; | |
| 650 // ushort us; | |
| 651 ubyte* puc; | |
| 652 uint usDefaultseg; | |
| 653 code* pc = null; | |
| 654 OPND* popndTmp; | |
| 655 ASM_OPERAND_TYPE aoptyTmp; | |
| 656 ushort uSizemaskTmp; | |
| 657 REG* pregSegment; | |
| 658 code* pcPrefix = null; | |
| 659 | |
| 660 uint uSizemask1 = 0; | |
| 661 uint uSizemask2 = 0; | |
| 662 uint uSizemask3 = 0; | |
| 663 | |
| 664 //ASM_OPERAND_TYPE aopty1 = ASM_OPERAND_TYPE._reg , aopty2 = 0, aopty3 = 0; | |
| 665 ASM_MODIFIERS amod1 = ASM_MODIFIERS._normal; | |
| 666 ASM_MODIFIERS amod2 = ASM_MODIFIERS._normal; | |
| 667 ASM_MODIFIERS amod3 = ASM_MODIFIERS._normal; | |
| 668 | |
| 669 uint uRegmask1 = 0; | |
| 670 uint uRegmask2 = 0; | |
| 671 uint uRegmask3 = 0; | |
| 672 | |
| 673 uint uSizemaskTable1 = 0; | |
| 674 uint uSizemaskTable2 = 0; | |
| 675 uint uSizemaskTable3 = 0; | |
| 676 | |
| 677 ASM_OPERAND_TYPE aoptyTable1 = ASM_OPERAND_TYPE._reg; | |
| 678 ASM_OPERAND_TYPE aoptyTable2 = ASM_OPERAND_TYPE._reg; | |
| 679 ASM_OPERAND_TYPE aoptyTable3 = ASM_OPERAND_TYPE._reg; | |
| 680 | |
| 681 ASM_MODIFIERS amodTable1 = ASM_MODIFIERS._normal; | |
| 682 ASM_MODIFIERS amodTable2 = ASM_MODIFIERS._normal; | |
| 683 ASM_MODIFIERS amodTable3 = ASM_MODIFIERS._normal; | |
| 684 | |
| 685 uint uRegmaskTable1 = 0; | |
| 686 uint uRegmaskTable2 = 0; | |
| 687 uint uRegmaskTable3 = 0; | |
| 688 | |
| 689 pc = code_calloc(); | |
| 690 pc.Iflags |= CF.CFpsw; // assume we want to keep the flags | |
| 691 | |
| 692 if (popnd1) | |
| 693 { | |
| 694 uSizemask1 = ASM_GET_uSizemask(popnd1.usFlags); | |
| 695 //aopty1 = ASM_GET_aopty(popnd1.usFlags); | |
| 696 amod1 = ASM_GET_amod(popnd1.usFlags); | |
| 697 uRegmask1 = ASM_GET_uRegmask(popnd1.usFlags); | |
| 698 | |
| 699 uSizemaskTable1 = ASM_GET_uSizemask(ptb.pptb1.usOp1); | |
| 700 aoptyTable1 = ASM_GET_aopty(ptb.pptb1.usOp1); | |
| 701 amodTable1 = ASM_GET_amod(ptb.pptb1.usOp1); | |
| 702 uRegmaskTable1 = ASM_GET_uRegmask(ptb.pptb1.usOp1); | |
| 703 | |
| 704 } | |
| 705 | |
| 706 if (popnd2) | |
| 707 { | |
| 708 static if (false) { | |
| 709 printf("\nasm_emit:\nop: "); | |
| 710 asm_output_flags(popnd2.usFlags); | |
| 711 printf("\ntb: "); | |
| 712 asm_output_flags(ptb.pptb2.usOp2); | |
| 713 printf("\n"); | |
| 714 } | |
| 715 uSizemask2 = ASM_GET_uSizemask(popnd2.usFlags); | |
| 716 //aopty2 = ASM_GET_aopty(popnd2.usFlags); | |
| 717 amod2 = ASM_GET_amod(popnd2.usFlags); | |
| 718 uRegmask2 = ASM_GET_uRegmask(popnd2.usFlags); | |
| 719 | |
| 720 uSizemaskTable2 = ASM_GET_uSizemask(ptb.pptb2.usOp2); | |
| 721 aoptyTable2 = ASM_GET_aopty(ptb.pptb2.usOp2); | |
| 722 amodTable2 = ASM_GET_amod(ptb.pptb2.usOp2); | |
| 723 uRegmaskTable2 = ASM_GET_uRegmask(ptb.pptb2.usOp2); | |
| 724 } | |
| 725 if (popnd3) | |
| 726 { | |
| 727 uSizemask3 = ASM_GET_uSizemask(popnd3.usFlags); | |
| 728 //aopty3 = ASM_GET_aopty(popnd3.usFlags); | |
| 729 amod3 = ASM_GET_amod(popnd3.usFlags); | |
| 730 uRegmask3 = ASM_GET_uRegmask(popnd3.usFlags); | |
| 731 | |
| 732 uSizemaskTable3 = ASM_GET_uSizemask(ptb.pptb3.usOp3); | |
| 733 aoptyTable3 = ASM_GET_aopty(ptb.pptb3.usOp3); | |
| 734 amodTable3 = ASM_GET_amod(ptb.pptb3.usOp3); | |
| 735 uRegmaskTable3 = ASM_GET_uRegmask(ptb.pptb3.usOp3); | |
| 736 } | |
| 737 | |
| 738 asmstate.statement.regs |= asm_modify_regs(ptb, popnd1, popnd2); | |
| 739 | |
| 740 if (!I32 && ptb.pptb0.usFlags & _I386) | |
| 741 { | |
| 742 switch (usNumops) | |
| 743 { | |
| 744 case 0: | |
| 745 break; | |
| 746 | |
| 747 case 1: | |
| 748 if (popnd1 && popnd1.s) | |
| 749 { | |
| 750 L386_WARNING: | |
| 751 id = popnd1.s.ident; | |
| 752 L386_WARNING2: | |
| 753 if (config.target_cpu < TARGET.TARGET_80386) | |
| 754 { | |
| 755 // Reference to %s caused a 386 instruction to be generated | |
| 756 //warerr(WM_386_op, id.toChars()); | |
| 757 } | |
| 758 } | |
| 759 break; | |
| 760 | |
| 761 case 2: | |
| 762 case 3: // The third operand is always an ASM_OPERAND_TYPE._imm | |
| 763 if (popnd1 && popnd1.s) | |
| 764 goto L386_WARNING; | |
| 765 if (popnd2 && popnd2.s) | |
| 766 { | |
| 767 id = popnd2.s.ident; | |
| 768 goto L386_WARNING2; | |
| 769 } | |
| 770 break; | |
| 771 } | |
| 772 } | |
| 773 | |
| 774 switch (usNumops) | |
| 775 { | |
| 776 case 0: | |
| 777 if ((I32 && (ptb.pptb0.usFlags & _16_bit)) || (!I32 && (ptb.pptb0.usFlags & _32_bit))) | |
| 778 { | |
| 779 emit(0x66); | |
| 780 pc.Iflags |= CF.CFopsize; | |
| 781 } | |
| 782 break; | |
| 783 | |
| 784 // 3 and 2 are the same because the third operand is always | |
| 785 // an immediate and does not affect operation size | |
| 786 case 3: | |
| 787 case 2: | |
| 788 if ((I32 && | |
| 789 (amod2 == ASM_MODIFIERS._addr16 || | |
| 790 (uSizemaskTable2 & _16 && aoptyTable2 == ASM_OPERAND_TYPE._rel) || | |
| 791 (uSizemaskTable2 & _32 && aoptyTable2 == ASM_OPERAND_TYPE._mnoi) || | |
| 792 (ptb.pptb2.usFlags & _16_bit_addr) | |
| 793 ) | |
| 794 ) || | |
| 795 (!I32 && | |
| 796 (amod2 == ASM_MODIFIERS._addr32 || | |
| 797 (uSizemaskTable2 & _32 && aoptyTable2 == ASM_OPERAND_TYPE._rel) || | |
| 798 (uSizemaskTable2 & _48 && aoptyTable2 == ASM_OPERAND_TYPE._mnoi) || | |
| 799 (ptb.pptb2.usFlags & _32_bit_addr))) | |
| 800 ) | |
| 801 { | |
| 802 emit(0x67); | |
| 803 pc.Iflags |= CF.CFaddrsize; | |
| 804 | |
| 805 if (I32) | |
| 806 amod2 = ASM_MODIFIERS._addr16; | |
| 807 else | |
| 808 amod2 = ASM_MODIFIERS._addr32; | |
| 809 | |
| 810 popnd2.usFlags &= ~CONSTRUCT_FLAGS(0,0,7,0); | |
| 811 popnd2.usFlags |= CONSTRUCT_FLAGS(0,0,amod2,0); | |
| 812 } | |
| 813 | |
| 814 | |
| 815 /* Fall through, operand 1 controls the opsize, but the | |
| 816 address size can be in either operand 1 or operand 2, | |
| 817 hence the extra checking the flags tested for SHOULD | |
| 818 be mutex on operand 1 and operand 2 because there is | |
| 819 only one MOD R/M byte | |
| 820 */ | |
| 821 | |
| 822 case 1: | |
| 823 if ((I32 && | |
| 824 (amod1 == ASM_MODIFIERS._addr16 || | |
| 825 (uSizemaskTable1 & _16 && aoptyTable1 == ASM_OPERAND_TYPE._rel) || | |
| 826 (uSizemaskTable1 & _32 && aoptyTable1 == ASM_OPERAND_TYPE._mnoi) || | |
| 827 (ptb.pptb1.usFlags & _16_bit_addr))) || | |
| 828 (!I32 && | |
| 829 (amod1 == ASM_MODIFIERS._addr32 || | |
| 830 (uSizemaskTable1 & _32 && aoptyTable1 == ASM_OPERAND_TYPE._rel) || | |
| 831 (uSizemaskTable1 & _48 && aoptyTable1 == ASM_OPERAND_TYPE._mnoi) || | |
| 832 (ptb.pptb1.usFlags & _32_bit_addr)))) | |
| 833 { | |
| 834 emit(0x67); // address size prefix | |
| 835 pc.Iflags |= CF.CFaddrsize; | |
| 836 if (I32) | |
| 837 amod1 = ASM_MODIFIERS._addr16; | |
| 838 else | |
| 839 amod1 = ASM_MODIFIERS._addr32; | |
| 840 popnd1.usFlags &= ~CONSTRUCT_FLAGS(0,0,7,0); | |
| 841 popnd1.usFlags |= CONSTRUCT_FLAGS(0,0,amod1,0); | |
| 842 } | |
| 843 | |
| 844 // If the size of the operand is unknown, assume that it is | |
| 845 // the default size | |
| 846 if ((I32 && (ptb.pptb0.usFlags & _16_bit)) || | |
| 847 (!I32 && (ptb.pptb0.usFlags & _32_bit))) | |
| 848 { | |
| 849 //if (asmstate.ucItype != ITjump) | |
| 850 { emit(0x66); | |
| 851 pc.Iflags |= CF.CFopsize; | |
| 852 } | |
| 853 } | |
| 854 if (((pregSegment = (popndTmp = popnd1).segreg) != null) || | |
| 855 ((popndTmp = popnd2) != null && | |
| 856 (pregSegment = popndTmp.segreg) != null) | |
| 857 ) | |
| 858 { | |
| 859 if ((popndTmp.pregDisp1 && | |
| 860 popndTmp.pregDisp1.val == _BP) || | |
| 861 popndTmp.pregDisp2 && | |
| 862 popndTmp.pregDisp2.val == _BP) | |
| 863 usDefaultseg = _SS; | |
| 864 else | |
| 865 usDefaultseg = _DS; | |
| 866 if (pregSegment.val != usDefaultseg) | |
| 867 switch (pregSegment.val) { | |
| 868 case _CS: | |
| 869 emit(0x2e); | |
| 870 pc.Iflags |= CF.CFcs; | |
| 871 break; | |
| 872 case _SS: | |
| 873 emit(0x36); | |
| 874 pc.Iflags |= CF.CFss; | |
| 875 break; | |
| 876 case _DS: | |
| 877 emit(0x3e); | |
| 878 pc.Iflags |= CF.CFds; | |
| 879 break; | |
| 880 case _ES: | |
| 881 emit(0x26); | |
| 882 pc.Iflags |= CF.CFes; | |
| 883 break; | |
| 884 case _FS: | |
| 885 emit(0x64); | |
| 886 pc.Iflags |= CF.CFfs; | |
| 887 break; | |
| 888 case _GS: | |
| 889 emit(0x65); | |
| 890 pc.Iflags |= CF.CFgs; | |
| 891 break; | |
| 892 default: | |
| 893 assert(0); | |
| 894 } | |
| 895 } | |
| 896 break; | |
| 897 } | |
| 898 uint usOpcode = ptb.pptb0.usOpcode; | |
| 899 | |
| 900 if ((usOpcode & 0xFFFFFF00) == 0x660F3A00 || // SSE4 | |
| 901 (usOpcode & 0xFFFFFF00) == 0x660F3800) // SSE4 | |
| 902 { | |
| 903 pc.Iflags |= CF.CFopsize; | |
| 904 pc.Iop = 0x0F; | |
| 905 pc.Iop2 = (usOpcode >> 8) & 0xFF; | |
| 906 pc.Iop3 = usOpcode & 0xFF; | |
| 907 goto L3; | |
| 908 } | |
| 909 switch (usOpcode & 0xFF0000) | |
| 910 { | |
| 911 case 0: | |
| 912 break; | |
| 913 | |
| 914 case 0x660000: | |
| 915 pc.Iflags |= CF.CFopsize; | |
| 916 usOpcode &= 0xFFFF; | |
| 917 break; | |
| 918 | |
| 919 case 0xF20000: // REPNE | |
| 920 case 0xF30000: // REP/REPE | |
| 921 // BUG: What if there's an address size prefix or segment | |
| 922 // override prefix? Must the REP be adjacent to the rest | |
| 923 // of the opcode? | |
| 924 pcPrefix = code_calloc(); | |
| 925 pcPrefix.Iop = cast(ubyte)(usOpcode >> 16); | |
| 926 usOpcode &= 0xFFFF; | |
| 927 break; | |
| 928 | |
| 929 case 0x0F0000: // an AMD instruction | |
| 930 puc = (cast(ubyte*) &usOpcode); | |
| 931 if (puc[1] != 0x0F) // if not AMD instruction 0x0F0F | |
| 932 goto L4; | |
| 933 emit(puc[2]); | |
| 934 emit(puc[1]); | |
| 935 emit(puc[0]); | |
| 936 pc.Iop = puc[2]; | |
| 937 pc.Iop2 = puc[1]; | |
| 938 pc.IEVint2() = puc[0]; | |
| 939 pc.IFL2 = FL.FLconst; | |
| 940 goto L3; | |
| 941 | |
| 942 default: | |
| 943 puc = (cast(ubyte*) &usOpcode); | |
| 944 L4: | |
| 945 emit(puc[2]); | |
| 946 emit(puc[1]); | |
| 947 emit(puc[0]); | |
| 948 pc.Iop = puc[2]; | |
| 949 pc.Iop2 = puc[1]; | |
| 950 pc.Irm = puc[0]; | |
| 951 goto L3; | |
| 952 } | |
| 953 if (usOpcode & 0xff00) | |
| 954 { | |
| 955 puc = (cast(ubyte*) &(usOpcode)); | |
| 956 emit(puc[1]); | |
| 957 emit(puc[0]); | |
| 958 pc.Iop = puc[1]; | |
| 959 if (pc.Iop == 0x0f) | |
| 960 pc.Iop2 = puc[0]; | |
| 961 else | |
| 962 { | |
| 963 if (usOpcode == 0xDFE0) // FSTSW AX | |
| 964 { pc.Irm = puc[0]; | |
| 965 goto L2; | |
| 966 } | |
| 967 if (asmstate.ucItype == IT.ITfloat) | |
| 968 pc.Irm = puc[0]; | |
| 969 else | |
| 970 { | |
| 971 pc.IEVint2() = puc[0]; | |
| 972 pc.IFL2 = FL.FLconst; | |
| 973 } | |
| 974 } | |
| 975 } | |
| 976 else | |
| 977 { | |
| 978 emit(cast(ubyte)usOpcode); | |
| 979 pc.Iop = cast(ubyte)usOpcode; | |
| 980 } | |
| 981 L3: ; | |
| 982 | |
| 983 // If CALL, Jxx or LOOPx to a symbolic location | |
| 984 if (/*asmstate.ucItype == ITjump &&*/ | |
| 985 popnd1 && popnd1.s && popnd1.s.isLabel()) | |
| 986 { | |
| 987 Dsymbol s = popnd1.s; | |
| 988 if (s == asmstate.psDollar) | |
| 989 { | |
| 990 pc.IFL2 = FL.FLconst; | |
| 991 if (uSizemaskTable1 & (_8 | _16)) | |
| 992 pc.IEVint2() = popnd1.disp; | |
| 993 else if (uSizemaskTable1 & _32) | |
| 994 pc.IEVpointer2() = cast(targ_size_t) popnd1.disp; | |
| 995 } | |
| 996 else | |
| 997 { | |
| 998 LabelDsymbol label = s.isLabel(); | |
| 999 if (label) | |
| 1000 { | |
| 1001 if ((pc.Iop & 0xF0) == 0x70) | |
| 1002 pc.Iflags |= CF.CFjmp16; | |
| 1003 if (usNumops == 1) | |
| 1004 { | |
| 1005 pc.IFL2 = FL.FLblock; | |
| 1006 pc.IEVlsym2() = label; | |
| 1007 } | |
| 1008 else | |
| 1009 { | |
| 1010 pc.IFL1 = FL.FLblock; | |
| 1011 pc.IEVlsym1() = label; | |
| 1012 } | |
| 1013 } | |
| 1014 } | |
| 1015 } | |
| 1016 | |
| 1017 switch (usNumops) | |
| 1018 { | |
| 1019 case 0: | |
| 1020 break; | |
| 1021 | |
| 1022 case 1: | |
| 1023 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
| 1024 amodTable1 == ASM_MODIFIERS._normal && (uRegmaskTable1 & _rplus_r))) | |
| 1025 { | |
| 1026 if (asmstate.ucItype == IT.ITfloat) | |
| 1027 pc.Irm += popnd1.base.val; | |
| 1028 else if (pc.Iop == 0x0f) | |
| 1029 pc.Iop2 += popnd1.base.val; | |
| 1030 else | |
| 1031 pc.Iop += popnd1.base.val; | |
| 1032 debug { | |
| 1033 auchOpcode[usIdx-1] += popnd1.base.val; | |
| 1034 } | |
| 1035 } | |
| 1036 else | |
| 1037 { | |
| 1038 asm_make_modrm_byte( | |
| 1039 ///debug { | |
| 1040 auchOpcode, &usIdx, | |
| 1041 ///} | |
| 1042 pc, | |
| 1043 ptb.pptb1.usFlags, | |
| 1044 popnd1, null); | |
| 1045 } | |
| 1046 | |
| 1047 popndTmp = popnd1; | |
| 1048 aoptyTmp = aoptyTable1; | |
| 1049 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
| 1050 L1: | |
| 1051 if (aoptyTmp == ASM_OPERAND_TYPE._imm) | |
| 1052 { | |
| 1053 Declaration d = popndTmp.s ? popndTmp.s.isDeclaration() : null; | |
| 1054 if (popndTmp.bSeg) | |
| 1055 { | |
| 1056 if (!(d && d.isDataseg())) | |
| 1057 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 1058 } | |
| 1059 switch (uSizemaskTmp) | |
| 1060 { | |
| 1061 case _8: | |
| 1062 case _16: | |
| 1063 case _32: | |
| 1064 if (popndTmp.s is asmstate.psLocalsize) | |
| 1065 { | |
| 1066 pc.IFL2 = FL.FLlocalsize; | |
| 1067 pc.IEVdsym2() = null; | |
| 1068 pc.Iflags |= CF.CFoff; | |
| 1069 pc.IEVoffset2() = popndTmp.disp; | |
| 1070 } | |
| 1071 else if (d) | |
| 1072 { | |
| 1073 static if (false) { | |
| 1074 if ((pc.IFL2 = d.Sfl) == 0) | |
| 1075 pc.IFL2 = FL.FLdsymbol; | |
| 1076 } else { | |
| 1077 pc.IFL2 = FL.FLdsymbol; | |
| 1078 } | |
| 1079 pc.Iflags &= ~(CF.CFseg | CF.CFoff); | |
| 1080 if (popndTmp.bSeg) | |
| 1081 pc.Iflags |= CF.CFseg; | |
| 1082 else | |
| 1083 pc.Iflags |= CF.CFoff; | |
| 1084 | |
| 1085 pc.IEVoffset2() = popndTmp.disp; | |
| 1086 pc.IEVdsym2() = d; | |
| 1087 } | |
| 1088 else | |
| 1089 { | |
| 1090 pc.IEVint2() = popndTmp.disp; | |
| 1091 pc.IFL2 = FL.FLconst; | |
| 1092 } | |
| 1093 break; | |
| 1094 } | |
| 1095 } | |
| 1096 | |
| 1097 break; | |
| 1098 case 2: | |
| 1099 // | |
| 1100 // If there are two immediate operands then | |
| 1101 // | |
| 1102 if (aoptyTable1 == ASM_OPERAND_TYPE._imm && aoptyTable2 == ASM_OPERAND_TYPE._imm) | |
| 1103 { | |
| 1104 pc.IEVint1() = popnd1.disp; | |
| 1105 pc.IFL1 = FL.FLconst; | |
| 1106 pc.IEVint2() = popnd2.disp; | |
| 1107 pc.IFL2 = FL.FLconst; | |
| 1108 break; | |
| 1109 } | |
| 1110 if (aoptyTable2 == ASM_OPERAND_TYPE._m || | |
| 1111 aoptyTable2 == ASM_OPERAND_TYPE._rel || | |
| 1112 // If not MMX register (_mm) or XMM register (_xmm) | |
| 1113 (amodTable1 == ASM_MODIFIERS._rspecial && !(uRegmaskTable1 & (0x08 | 0x10)) && !uSizemaskTable1) || | |
| 1114 aoptyTable2 == ASM_OPERAND_TYPE._rm || | |
| 1115 (popnd1.usFlags == _r32 && popnd2.usFlags == _xmm) || | |
| 1116 (popnd1.usFlags == _r32 && popnd2.usFlags == _mm)) | |
| 1117 { | |
| 1118 static if (false) { | |
| 1119 printf("test4 %d,%d,%d,%d\n", | |
| 1120 (aoptyTable2 == ASM_OPERAND_TYPE._m), | |
| 1121 (aoptyTable2 == ASM_OPERAND_TYPE._rel), | |
| 1122 (amodTable1 == ASM_MODIFIERS._rspecial && !(uRegmaskTable1 & (0x08 | 0x10))), | |
| 1123 (aoptyTable2 == ASM_OPERAND_TYPE._rm) | |
| 1124 ); | |
| 1125 printf("usOpcode = %x\n", usOpcode); | |
| 1126 } | |
| 1127 if (ptb.pptb0.usOpcode == 0x0F7E || // MOVD _rm32,_mm | |
| 1128 ptb.pptb0.usOpcode == 0x660F7E // MOVD _rm32,_xmm | |
| 1129 ) | |
| 1130 { | |
| 1131 asm_make_modrm_byte( | |
| 1132 ///debug { | |
| 1133 auchOpcode, &usIdx, | |
| 1134 ///} | |
| 1135 pc, | |
| 1136 ptb.pptb1.usFlags, | |
| 1137 popnd1, popnd2); | |
| 1138 } | |
| 1139 else | |
| 1140 { | |
| 1141 asm_make_modrm_byte( | |
| 1142 ///debug { | |
| 1143 auchOpcode, &usIdx, | |
| 1144 ///} | |
| 1145 pc, | |
| 1146 ptb.pptb1.usFlags, | |
| 1147 popnd2, popnd1); | |
| 1148 } | |
| 1149 popndTmp = popnd1; | |
| 1150 aoptyTmp = aoptyTable1; | |
| 1151 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
| 1152 } | |
| 1153 else | |
| 1154 { | |
| 1155 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
| 1156 amodTable1 == ASM_MODIFIERS._normal && | |
| 1157 (uRegmaskTable1 & _rplus_r))) | |
| 1158 { | |
| 1159 if (asmstate.ucItype == IT.ITfloat) | |
| 1160 pc.Irm += popnd1.base.val; | |
| 1161 else if (pc.Iop == 0x0f) | |
| 1162 pc.Iop2 += popnd1.base.val; | |
| 1163 else | |
| 1164 pc.Iop += popnd1.base.val; | |
| 1165 debug { | |
| 1166 auchOpcode[usIdx-1] += popnd1.base.val; | |
| 1167 } | |
| 1168 } | |
| 1169 else if (((aoptyTable2 == ASM_OPERAND_TYPE._reg || aoptyTable2 == ASM_OPERAND_TYPE._float) && | |
| 1170 amodTable2 == ASM_MODIFIERS._normal && | |
| 1171 (uRegmaskTable2 & _rplus_r))) | |
| 1172 { | |
| 1173 if (asmstate.ucItype == IT.ITfloat) | |
| 1174 pc.Irm += popnd2.base.val; | |
| 1175 else if (pc.Iop == 0x0f) | |
| 1176 pc.Iop2 += popnd2.base.val; | |
| 1177 else | |
| 1178 pc.Iop += popnd2.base.val; | |
| 1179 debug { | |
| 1180 auchOpcode[usIdx-1] += popnd2.base.val; | |
| 1181 } | |
| 1182 } | |
| 1183 else if (ptb.pptb0.usOpcode == 0xF30FD6 || | |
| 1184 ptb.pptb0.usOpcode == 0x0F12 || | |
| 1185 ptb.pptb0.usOpcode == 0x0F16 || | |
| 1186 ptb.pptb0.usOpcode == 0x660F50 || | |
| 1187 ptb.pptb0.usOpcode == 0x0F50 || | |
| 1188 ptb.pptb0.usOpcode == 0x660FD7 || | |
| 1189 ptb.pptb0.usOpcode == 0x0FD7) | |
| 1190 { | |
| 1191 asm_make_modrm_byte( | |
| 1192 ///debug { | |
| 1193 auchOpcode, &usIdx, | |
| 1194 ///} | |
| 1195 pc, | |
| 1196 ptb.pptb1.usFlags, | |
| 1197 popnd2, popnd1); | |
| 1198 } | |
| 1199 else | |
| 1200 { | |
| 1201 asm_make_modrm_byte( | |
| 1202 ///debug { | |
| 1203 auchOpcode, &usIdx, | |
| 1204 ///} | |
| 1205 pc, | |
| 1206 ptb.pptb1.usFlags, | |
| 1207 popnd1, popnd2); | |
| 1208 | |
| 1209 } | |
| 1210 if (aoptyTable1 == ASM_OPERAND_TYPE._imm) | |
| 1211 { | |
| 1212 popndTmp = popnd1; | |
| 1213 aoptyTmp = aoptyTable1; | |
| 1214 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
| 1215 } | |
| 1216 else | |
| 1217 { | |
| 1218 popndTmp = popnd2; | |
| 1219 aoptyTmp = aoptyTable2; | |
| 1220 uSizemaskTmp = cast(ushort)uSizemaskTable2; | |
| 1221 } | |
| 1222 } | |
| 1223 goto L1; | |
| 1224 | |
| 1225 case 3: | |
| 1226 if (aoptyTable2 == ASM_OPERAND_TYPE._m || aoptyTable2 == ASM_OPERAND_TYPE._rm || | |
| 1227 usOpcode == 0x0FC5) // PEXTRW | |
| 1228 { | |
| 1229 asm_make_modrm_byte( | |
| 1230 ///debug { | |
| 1231 auchOpcode, &usIdx, | |
| 1232 ///} | |
| 1233 pc, | |
| 1234 ptb.pptb1.usFlags, | |
| 1235 popnd2, popnd1); | |
| 1236 popndTmp = popnd3; | |
| 1237 aoptyTmp = aoptyTable3; | |
| 1238 uSizemaskTmp = cast(ushort)uSizemaskTable3; | |
| 1239 } else { | |
| 1240 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
| 1241 amodTable1 == ASM_MODIFIERS._normal && | |
| 1242 (uRegmaskTable1 &_rplus_r))) | |
| 1243 { | |
| 1244 if (asmstate.ucItype == IT.ITfloat) | |
| 1245 pc.Irm += popnd1.base.val; | |
| 1246 else if (pc.Iop == 0x0f) | |
| 1247 pc.Iop2 += popnd1.base.val; | |
| 1248 else | |
| 1249 pc.Iop += popnd1.base.val; | |
| 1250 debug { | |
| 1251 auchOpcode[usIdx-1] += popnd1.base.val; | |
| 1252 } | |
| 1253 } | |
| 1254 else if (((aoptyTable2 == ASM_OPERAND_TYPE._reg || aoptyTable2 == ASM_OPERAND_TYPE._float) && | |
| 1255 amodTable2 == ASM_MODIFIERS._normal && | |
| 1256 (uRegmaskTable2 &_rplus_r))) | |
| 1257 { | |
| 1258 if (asmstate.ucItype == IT.ITfloat) | |
| 1259 pc.Irm += popnd1.base.val; | |
| 1260 else if (pc.Iop == 0x0f) | |
| 1261 pc.Iop2 += popnd1.base.val; | |
| 1262 else | |
| 1263 pc.Iop += popnd2.base.val; | |
| 1264 debug { | |
| 1265 auchOpcode[usIdx-1] += popnd2.base.val; | |
| 1266 } | |
| 1267 } | |
| 1268 else | |
| 1269 asm_make_modrm_byte( | |
| 1270 ///debug { | |
| 1271 auchOpcode, &usIdx, | |
| 1272 ///} | |
| 1273 pc, | |
| 1274 ptb.pptb1.usFlags, | |
| 1275 popnd1, popnd2); | |
| 1276 | |
| 1277 popndTmp = popnd3; | |
| 1278 aoptyTmp = aoptyTable3; | |
| 1279 uSizemaskTmp = cast(ushort)uSizemaskTable3; | |
| 1280 } | |
| 1281 goto L1; | |
| 1282 } | |
| 1283 L2: | |
| 1284 | |
| 1285 if ((pc.Iop & 0xF8) == 0xD8 && | |
| 1286 ADDFWAIT() && | |
| 1287 !(ptb.pptb0.usFlags & _nfwait)) | |
| 1288 pc.Iflags |= CF.CFwait; | |
| 1289 else if ((ptb.pptb0.usFlags & _fwait) && | |
| 1290 config.target_cpu >= TARGET.TARGET_80386) | |
| 1291 pc.Iflags |= CF.CFwait; | |
| 1292 | |
| 1293 debug { | |
| 1294 if (debuga) | |
| 1295 { | |
| 1296 uint u; | |
| 1297 | |
| 1298 for (u = 0; u < usIdx; u++) | |
| 1299 printf(" %02X", auchOpcode[u]); | |
| 1300 | |
| 1301 printf("\t%s\t", asm_opstr(pop)); | |
| 1302 if (popnd1) | |
| 1303 asm_output_popnd(popnd1); | |
| 1304 if (popnd2) { | |
| 1305 printf(","); | |
| 1306 asm_output_popnd(popnd2); | |
| 1307 } | |
| 1308 if (popnd3) { | |
| 1309 printf(","); | |
| 1310 asm_output_popnd(popnd3); | |
| 1311 } | |
| 1312 printf("\n"); | |
| 1313 } | |
| 1314 } | |
| 1315 | |
| 1316 pc = cat(pcPrefix, pc); | |
| 1317 pc = asm_genloc(loc, pc); | |
| 1318 return pc; | |
| 1319 } | |
| 1320 | |
| 1321 void asm_token_trans(Token* tok) | |
| 1322 { | |
| 1323 tok_value = TOK.TOKeof; | |
| 1324 | |
| 1325 if (tok) | |
| 1326 { | |
| 1327 tok_value = tok.value; | |
| 1328 if (tok_value == TOK.TOKidentifier) | |
| 1329 { | |
| 1330 string id = tok.ident.toChars(); | |
| 1331 size_t len = id.length; | |
| 1332 if (len < 20) | |
| 1333 { | |
| 1334 ASMTK asmtk = cast(ASMTK) binary(toStringz(id), apszAsmtk.ptr, ASMTK.ASMTKmax); | |
| 1335 if (cast(int)asmtk >= 0) | |
| 1336 tok_value = cast(TOK)(asmtk + TOK.TOKMAX + 1); | |
| 1337 } | |
| 1338 } | |
| 1339 } | |
| 1340 } | |
| 1341 | |
| 1342 void asm_token() | |
| 1343 { | |
| 1344 if (asmtok) | |
| 1345 asmtok = asmtok.next; | |
| 1346 | |
| 1347 asm_token_trans(asmtok); | |
| 1348 } | |
| 1349 | |
| 1350 | |
| 1351 /********************** | |
| 1352 * If c is a power of 2, return that power else -1. | |
| 1353 */ | |
| 1354 | |
| 1355 int ispow2(ulong c) | |
| 1356 { | |
| 1357 int i; | |
| 1358 | |
| 1359 if (c == 0 || (c & (c - 1))) | |
| 1360 i = -1; | |
| 1361 else | |
| 1362 for (i = 0; c >>= 1; i++) { | |
| 1363 ; | |
| 1364 } | |
| 1365 | |
| 1366 return i; | |
| 1367 } | |
| 1368 | |
| 1369 // Error numbers | |
| 1370 enum ASMERRMSGS | |
| 1371 { | |
| 1372 EM_bad_float_op, | |
| 1373 EM_bad_addr_mode, | |
| 1374 EM_align, | |
| 1375 EM_opcode_exp, | |
| 1376 EM_prefix, | |
| 1377 EM_eol, | |
| 1378 EM_bad_operand, | |
| 1379 EM_bad_integral_operand, | |
| 1380 EM_ident_exp, | |
| 1381 EM_not_struct, | |
| 1382 EM_nops_expected, | |
| 1383 EM_bad_op, | |
| 1384 EM_const_init, | |
| 1385 EM_undefined, | |
| 1386 EM_pointer, | |
| 1387 EM_colon, | |
| 1388 EM_rbra, | |
| 1389 EM_rpar, | |
| 1390 EM_ptr_exp, | |
| 1391 EM_num, | |
| 1392 EM_float, | |
| 1393 EM_char, | |
| 1394 EM_label_expected, | |
| 1395 EM_uplevel, | |
| 1396 EM_type_as_operand, | |
| 1397 } | |
| 1398 | |
| 1399 mixin(BringToCurrentScope!(ASMERRMSGS)); | |
| 1400 | |
| 1401 string[] asmerrmsgs = | |
| 1402 [ | |
| 1403 "unknown operand for floating point instruction", | |
| 1404 "bad addr mode", | |
| 1405 "align %d must be a power of 2", | |
| 1406 "opcode expected, not %s", | |
| 1407 "prefix", | |
| 1408 "end of instruction", | |
| 1409 "bad operand", | |
| 1410 "bad integral operand", | |
| 1411 "identifier expected", | |
| 1412 "not struct", | |
| 1413 "nops expected", | |
| 1414 "bad type/size of operands '%s'", | |
| 1415 "constant initializer expected", | |
| 1416 "undefined identifier '%s'", | |
| 1417 "pointer", | |
| 1418 "colon", | |
| 1419 "] expected instead of '%s'", | |
| 1420 ") expected instead of '%s'", | |
| 1421 "ptr expected", | |
| 1422 "integer expected", | |
| 1423 "floating point expected", | |
| 1424 "character is truncated", | |
| 1425 "label expected", | |
| 1426 "uplevel nested reference to variable %s", | |
| 1427 "cannot use type %s as an operand" | |
| 1428 ]; | |
| 1429 | |
| 1430 void asmerr(T...)(int errnum, T t) | |
| 1431 { | |
| 1432 string format = asmerrmsgs[errnum]; | |
| 1433 asmerr(format, t); | |
| 1434 } | |
| 1435 | |
| 1436 void asmerr(T...)(string format, T t) | |
| 1437 { | |
| 1438 string p = asmstate.loc.toChars(); | |
| 1439 if (p.length != 0) | |
| 1440 writef("%s: ", p); | |
| 1441 | |
| 1442 writefln(format, t); | |
| 1443 | |
| 1444 longjmp(asmstate.env,1); | |
| 1445 } | |
| 1446 | |
| 1447 PTRNTAB asm_classify(OP* pop, OPND* popnd1, OPND* popnd2, OPND* popnd3, uint* pusNumops) | |
| 1448 { | |
| 1449 uint usNumops; | |
| 1450 uint usActual; | |
| 1451 PTRNTAB ptbRet = { null }; | |
| 1452 opflag_t usFlags1 = 0 ; | |
| 1453 opflag_t usFlags2 = 0; | |
| 1454 opflag_t usFlags3 = 0; | |
| 1455 | |
| 1456 PTRNTAB1 *pptb1; | |
| 1457 PTRNTAB2 *pptb2; | |
| 1458 PTRNTAB3 *pptb3; | |
| 1459 | |
| 1460 char bFake = false; | |
| 1461 | |
| 1462 ubyte bMatch1, bMatch2, bMatch3, bRetry = false; | |
| 1463 | |
| 1464 // How many arguments are there? the parser is strictly left to right | |
| 1465 // so this should work. | |
| 1466 | |
| 1467 if (!popnd1) | |
| 1468 usNumops = 0; | |
| 1469 else | |
| 1470 { | |
| 1471 popnd1.usFlags = usFlags1 = asm_determine_operand_flags(popnd1); | |
| 1472 if (!popnd2) | |
| 1473 usNumops = 1; | |
| 1474 else | |
| 1475 { | |
| 1476 popnd2.usFlags = usFlags2 = asm_determine_operand_flags(popnd2); | |
| 1477 if (!popnd3) | |
| 1478 usNumops = 2; | |
| 1479 else | |
| 1480 { | |
| 1481 popnd3.usFlags = usFlags3 = asm_determine_operand_flags(popnd3); | |
| 1482 usNumops = 3; | |
| 1483 } | |
| 1484 } | |
| 1485 } | |
| 1486 | |
| 1487 // Now check to insure that the number of operands is correct | |
| 1488 usActual = (pop.usNumops & IT.ITSIZE); | |
| 1489 if (usActual != usNumops && asmstate.ucItype != IT.ITopt && | |
| 1490 asmstate.ucItype != IT.ITfloat) | |
| 1491 { | |
| 1492 PARAM_ERROR: | |
| 1493 asmerr(ASMERRMSGS.EM_nops_expected, usActual, asm_opstr(pop), usNumops); | |
| 1494 } | |
| 1495 *pusNumops = usNumops; | |
| 1496 // | |
| 1497 // The number of arguments matches, now check to find the opcode | |
| 1498 // in the associated opcode table | |
| 1499 // | |
| 1500 RETRY: | |
| 1501 //printf("usActual = %d\n", usActual); | |
| 1502 switch (usActual) | |
| 1503 { | |
| 1504 case 0: | |
| 1505 ptbRet = pop.ptb ; | |
| 1506 goto RETURN_IT; | |
| 1507 | |
| 1508 case 1: | |
| 1509 //printf("usFlags1 = "); asm_output_flags(usFlags1); printf("\n"); | |
| 1510 for (pptb1 = pop.ptb.pptb1; pptb1.usOpcode != ASM_END; | |
| 1511 pptb1++) | |
| 1512 { | |
| 1513 //printf("table = "); asm_output_flags(pptb1.usOp1); printf("\n"); | |
| 1514 bMatch1 = asm_match_flags(usFlags1, pptb1.usOp1); | |
| 1515 if (bMatch1) | |
| 1516 { if (pptb1.usOpcode == 0x68 && | |
| 1517 I32 && | |
| 1518 pptb1.usOp1 == _imm16 | |
| 1519 ) | |
| 1520 // Don't match PUSH imm16 in 32 bit code | |
| 1521 continue; | |
| 1522 break; | |
| 1523 } | |
| 1524 if ((asmstate.ucItype == IT.ITimmed) && | |
| 1525 asm_match_flags(usFlags1, | |
| 1526 CONSTRUCT_FLAGS(_8 | _16 | _32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, | |
| 1527 0)) && | |
| 1528 popnd1.disp == pptb1.usFlags) | |
| 1529 break; | |
| 1530 if ((asmstate.ucItype == IT.ITopt || | |
| 1531 asmstate.ucItype == IT.ITfloat) && | |
| 1532 !usNumops && | |
| 1533 !pptb1.usOp1) | |
| 1534 { | |
| 1535 if (usNumops > 1) | |
| 1536 goto PARAM_ERROR; | |
| 1537 break; | |
| 1538 } | |
| 1539 } | |
| 1540 if (pptb1.usOpcode == ASM_END) | |
| 1541 { | |
| 1542 debug { | |
| 1543 if (debuga) | |
| 1544 { | |
| 1545 printf("\t%s\t", asm_opstr(pop)); | |
| 1546 if (popnd1) | |
| 1547 asm_output_popnd(popnd1); | |
| 1548 if (popnd2) { | |
| 1549 printf(","); | |
| 1550 asm_output_popnd(popnd2); | |
| 1551 } | |
| 1552 if (popnd3) { | |
| 1553 printf(","); | |
| 1554 asm_output_popnd(popnd3); | |
| 1555 } | |
| 1556 printf("\n"); | |
| 1557 | |
| 1558 printf("OPCODE mism = "); | |
| 1559 if (popnd1) | |
| 1560 asm_output_flags(popnd1.usFlags); | |
| 1561 else | |
| 1562 printf("NONE"); | |
| 1563 printf("\n"); | |
| 1564 } | |
| 1565 } | |
| 1566 TYPE_SIZE_ERROR: | |
| 1567 if (popnd1 && ASM_GET_aopty(popnd1.usFlags) != ASM_OPERAND_TYPE._reg) | |
| 1568 { | |
| 1569 usFlags1 = popnd1.usFlags |= _anysize; | |
| 1570 if (asmstate.ucItype == IT.ITjump) | |
| 1571 { | |
| 1572 if (bRetry && popnd1.s && !popnd1.s.isLabel()) | |
| 1573 { | |
| 1574 asmerr(ASMERRMSGS.EM_label_expected, popnd1.s.toChars()); | |
| 1575 } | |
| 1576 | |
| 1577 popnd1.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, _fanysize); | |
| 1578 } | |
| 1579 } | |
| 1580 if (popnd2 && ASM_GET_aopty(popnd2.usFlags) != ASM_OPERAND_TYPE._reg) { | |
| 1581 usFlags2 = popnd2.usFlags |= (_anysize); | |
| 1582 if (asmstate.ucItype == IT.ITjump) | |
| 1583 popnd2.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, | |
| 1584 _fanysize); | |
| 1585 } | |
| 1586 if (popnd3 && ASM_GET_aopty(popnd3.usFlags) != ASM_OPERAND_TYPE._reg) { | |
| 1587 usFlags3 = popnd3.usFlags |= (_anysize); | |
| 1588 if (asmstate.ucItype == IT.ITjump) | |
| 1589 popnd3.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, | |
| 1590 _fanysize); | |
| 1591 } | |
| 1592 if (bRetry) | |
| 1593 { | |
| 1594 asmerr(ASMERRMSGS.EM_bad_op, fromStringz(asm_opstr(pop))); // illegal type/size of operands | |
| 1595 } | |
| 1596 bRetry = true; | |
| 1597 goto RETRY; | |
| 1598 } | |
| 1599 ptbRet.pptb1 = pptb1; | |
| 1600 goto RETURN_IT; | |
| 1601 | |
| 1602 case 2: | |
| 1603 //printf("usFlags1 = "); asm_output_flags(usFlags1); printf(" "); | |
| 1604 //printf("usFlags2 = "); asm_output_flags(usFlags2); printf("\n"); | |
| 1605 for (pptb2 = pop.ptb.pptb2; | |
| 1606 pptb2.usOpcode != ASM_END; | |
| 1607 pptb2++) | |
| 1608 { | |
| 1609 //printf("table1 = "); asm_output_flags(pptb2.usOp1); printf(" "); | |
| 1610 //printf("table2 = "); asm_output_flags(pptb2.usOp2); printf("\n"); | |
| 1611 bMatch1 = asm_match_flags(usFlags1, pptb2.usOp1); | |
| 1612 bMatch2 = asm_match_flags(usFlags2, pptb2.usOp2); | |
| 1613 //printf("match1 = %d, match2 = %d\n",bMatch1,bMatch2); | |
| 1614 if (bMatch1 && bMatch2) { | |
| 1615 | |
| 1616 //printf("match\n"); | |
| 1617 | |
| 1618 // OK, if they both match and the first op in the table is not AL | |
| 1619 // or size of 8 and the second is immediate 8, | |
| 1620 // then check to see if the constant | |
| 1621 // is a signed 8 bit constant. If so, then do not match, otherwise match | |
| 1622 // | |
| 1623 if (!bRetry && | |
| 1624 !((ASM_GET_uSizemask(pptb2.usOp1) & _8) || | |
| 1625 (ASM_GET_uRegmask(pptb2.usOp1) & _al)) && | |
| 1626 (ASM_GET_aopty(pptb2.usOp2) == ASM_OPERAND_TYPE._imm) && | |
| 1627 (ASM_GET_uSizemask(pptb2.usOp2) & _8)) | |
| 1628 { | |
| 1629 if (popnd2.disp <= char.max) | |
| 1630 break; | |
| 1631 else | |
| 1632 bFake = true; | |
| 1633 } | |
| 1634 else | |
| 1635 break; | |
| 1636 } | |
| 1637 if (asmstate.ucItype == IT.ITopt || asmstate.ucItype == IT.ITfloat) | |
| 1638 { | |
| 1639 switch (usNumops) | |
| 1640 { | |
| 1641 case 0: | |
| 1642 if (!pptb2.usOp1) | |
| 1643 goto Lfound2; | |
| 1644 break; | |
| 1645 case 1: | |
| 1646 if (bMatch1 && !pptb2.usOp2) | |
| 1647 goto Lfound2; | |
| 1648 break; | |
| 1649 case 2: | |
| 1650 break; | |
| 1651 default: | |
| 1652 goto PARAM_ERROR; | |
| 1653 } | |
| 1654 } | |
| 1655 static if (false) { | |
| 1656 if (asmstate.ucItype == IT.ITshift && | |
| 1657 !pptb2.usOp2 && | |
| 1658 bMatch1 && popnd2.disp == 1 && | |
| 1659 asm_match_flags(usFlags2, | |
| 1660 CONSTRUCT_FLAGS(_8|_16|_32, ASM_OPERAND_TYPE._imm,ASM_MODIFIERS._normal,0)) | |
| 1661 ) | |
| 1662 { | |
| 1663 break; | |
| 1664 } | |
| 1665 } | |
| 1666 } | |
| 1667 Lfound2: | |
| 1668 if (pptb2.usOpcode == ASM_END) | |
| 1669 { | |
| 1670 debug { | |
| 1671 if (debuga) | |
| 1672 { | |
| 1673 printf("\t%s\t", asm_opstr(pop)); | |
| 1674 if (popnd1) | |
| 1675 asm_output_popnd(popnd1); | |
| 1676 if (popnd2) { | |
| 1677 printf(","); | |
| 1678 asm_output_popnd(popnd2); | |
| 1679 } | |
| 1680 if (popnd3) { | |
| 1681 printf(","); | |
| 1682 asm_output_popnd(popnd3); | |
| 1683 } | |
| 1684 printf("\n"); | |
| 1685 | |
| 1686 printf("OPCODE mismatch = "); | |
| 1687 if (popnd1) | |
| 1688 asm_output_flags(popnd1.usFlags); | |
| 1689 else | |
| 1690 printf("NONE"); | |
| 1691 printf( " Op2 = "); | |
| 1692 if (popnd2) | |
| 1693 asm_output_flags(popnd2.usFlags); | |
| 1694 else | |
| 1695 printf("NONE"); | |
| 1696 printf("\n"); | |
| 1697 } | |
| 1698 } | |
| 1699 goto TYPE_SIZE_ERROR; | |
| 1700 } | |
| 1701 ptbRet.pptb2 = pptb2; | |
| 1702 goto RETURN_IT; | |
| 1703 | |
| 1704 case 3: | |
| 1705 for (pptb3 = pop.ptb.pptb3; | |
| 1706 pptb3.usOpcode != ASM_END; | |
| 1707 pptb3++) | |
| 1708 { | |
| 1709 bMatch1 = asm_match_flags(usFlags1, pptb3.usOp1); | |
| 1710 bMatch2 = asm_match_flags(usFlags2, pptb3.usOp2); | |
| 1711 bMatch3 = asm_match_flags(usFlags3, pptb3.usOp3); | |
| 1712 if (bMatch1 && bMatch2 && bMatch3) | |
| 1713 goto Lfound3; | |
| 1714 | |
| 1715 if (asmstate.ucItype == IT.ITopt) | |
| 1716 { | |
| 1717 switch (usNumops) | |
| 1718 { | |
| 1719 case 0: | |
| 1720 if (!pptb3.usOp1) | |
| 1721 goto Lfound3; | |
| 1722 break; | |
| 1723 case 1: | |
| 1724 if (bMatch1 && !pptb3.usOp2) | |
| 1725 goto Lfound3; | |
| 1726 break; | |
| 1727 case 2: | |
| 1728 if (bMatch1 && bMatch2 && !pptb3.usOp3) | |
| 1729 goto Lfound3; | |
| 1730 break; | |
| 1731 case 3: | |
| 1732 break; | |
| 1733 default: | |
| 1734 goto PARAM_ERROR; | |
| 1735 } | |
| 1736 } | |
| 1737 } | |
| 1738 Lfound3: | |
| 1739 if (pptb3.usOpcode == ASM_END) | |
| 1740 { | |
| 1741 debug { | |
| 1742 if (debuga) | |
| 1743 { | |
| 1744 printf("\t%s\t", asm_opstr(pop)); | |
| 1745 if (popnd1) | |
| 1746 asm_output_popnd(popnd1); | |
| 1747 if (popnd2) { | |
| 1748 printf(","); | |
| 1749 asm_output_popnd(popnd2); | |
| 1750 } | |
| 1751 if (popnd3) { | |
| 1752 printf(","); | |
| 1753 asm_output_popnd(popnd3); | |
| 1754 } | |
| 1755 printf("\n"); | |
| 1756 | |
| 1757 printf("OPCODE mismatch = "); | |
| 1758 if (popnd1) | |
| 1759 asm_output_flags(popnd1.usFlags); | |
| 1760 else | |
| 1761 printf("NONE"); | |
| 1762 printf( " Op2 = "); | |
| 1763 if (popnd2) | |
| 1764 asm_output_flags(popnd2.usFlags); | |
| 1765 else | |
| 1766 printf("NONE"); | |
| 1767 if (popnd3) | |
| 1768 asm_output_flags(popnd3.usFlags); | |
| 1769 printf("\n"); | |
| 1770 } | |
| 1771 } | |
| 1772 goto TYPE_SIZE_ERROR; | |
| 1773 } | |
| 1774 | |
| 1775 ptbRet.pptb3 = pptb3; | |
| 1776 goto RETURN_IT; | |
| 1777 } | |
| 1778 | |
| 1779 RETURN_IT: | |
| 1780 if (bRetry && !bFake) | |
| 1781 { | |
| 1782 asmerr(ASMERRMSGS.EM_bad_op, fromStringz(asm_opstr(pop))); | |
| 1783 } | |
| 1784 return ptbRet; | |
| 1785 } | |
| 1786 | |
| 1787 /******************************* | |
| 1788 * start of inline assemblers expression parser | |
| 1789 * NOTE: functions in call order instead of alphabetical | |
| 1790 */ | |
| 1791 | |
| 1792 /******************************************* | |
| 1793 * Parse DA expression | |
| 1794 * | |
| 1795 * Very limited define address to place a code | |
| 1796 * address in the assembly | |
| 1797 * Problems: | |
| 1798 * o Should use dw offset and dd offset instead, | |
| 1799 * for near/far support. | |
| 1800 * o Should be able to add an offset to the label address. | |
| 1801 * o Blocks addressed by DA should get their Bpred set correctly | |
| 1802 * for optimizer. | |
| 1803 */ | |
| 1804 | |
| 1805 code* asm_da_parse(OP* pop) | |
| 1806 { | |
| 1807 code* clst = null; | |
| 1808 elem* e; | |
| 1809 | |
| 1810 while (1) | |
| 1811 { | |
| 1812 code* c; | |
| 1813 | |
| 1814 if (tok_value == TOK.TOKidentifier) | |
| 1815 { | |
| 1816 LabelDsymbol label = asmstate.sc.func.searchLabel(asmtok.ident); | |
| 1817 if (!label) | |
| 1818 error(asmstate.loc, "label '%s' not found\n", asmtok.ident.toChars()); | |
| 1819 | |
| 1820 c = code_calloc(); | |
| 1821 c.Iop = ASM; | |
| 1822 c.Iflags = CF.CFaddrsize; | |
| 1823 c.IFL1 = FL.FLblockoff; | |
| 1824 c.IEVlsym1() = label; | |
| 1825 c = asm_genloc(asmstate.loc, c); | |
| 1826 clst = cat(clst,c); | |
| 1827 } | |
| 1828 else | |
| 1829 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 1830 | |
| 1831 asm_token(); | |
| 1832 if (tok_value != TOK.TOKcomma) | |
| 1833 break; | |
| 1834 | |
| 1835 asm_token(); | |
| 1836 } | |
| 1837 | |
| 1838 asmstate.statement.regs |= mES | ALLREGS; | |
| 1839 asmstate.bReturnax = true; | |
| 1840 | |
| 1841 return clst; | |
| 1842 } | |
| 1843 | |
| 1844 /******************************************* | |
| 1845 * Parse DB, DW, DD, DQ and DT expressions. | |
| 1846 */ | |
| 1847 | |
| 1848 code* asm_db_parse(OP* pop) | |
| 1849 { | |
| 1850 uint usSize; | |
| 1851 uint usMaxbytes; | |
| 1852 uint usBytes; | |
| 1853 | |
| 1854 union DT | |
| 1855 { | |
| 1856 targ_ullong ul; | |
| 1857 targ_float f; | |
| 1858 targ_double d; | |
| 1859 targ_ldouble ld; | |
| 1860 char value[10]; | |
| 1861 } | |
| 1862 | |
| 1863 DT dt; | |
| 1864 | |
| 1865 code* c; | |
| 1866 uint op; | |
| 1867 static ubyte[7] opsize = [ 1,2,4,8,4,8,10 ]; | |
| 1868 | |
| 1869 op = pop.usNumops & IT.ITSIZE; | |
| 1870 usSize = opsize[op]; | |
| 1871 | |
| 1872 usBytes = 0; | |
| 1873 usMaxbytes = 0; | |
| 1874 c = code_calloc(); | |
| 1875 c.Iop = ASM; | |
| 1876 | |
| 1877 while (1) | |
| 1878 { | |
| 1879 size_t len; | |
| 1880 ubyte* q; | |
| 1881 | |
| 1882 if (usBytes+usSize > usMaxbytes) | |
| 1883 { | |
| 1884 usMaxbytes = usBytes + usSize + 10; | |
|
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
1885 c.IEV1.as.bytes = cast(char*)realloc(c.IEV1.as.bytes,usMaxbytes); |
| 0 | 1886 } |
| 1887 switch (tok_value) | |
| 1888 { | |
| 1889 case TOK.TOKint32v: | |
| 1890 dt.ul = asmtok.int32value; | |
| 1891 goto L1; | |
| 1892 case TOK.TOKuns32v: | |
| 1893 dt.ul = asmtok.uns32value; | |
| 1894 goto L1; | |
| 1895 case TOK.TOKint64v: | |
| 1896 dt.ul = asmtok.int64value; | |
| 1897 goto L1; | |
| 1898 case TOK.TOKuns64v: | |
| 1899 dt.ul = asmtok.uns64value; | |
| 1900 goto L1; | |
| 1901 L1: | |
| 1902 switch (op) | |
| 1903 { | |
| 1904 case OP_DB.OPdb: | |
| 1905 case OP_DB.OPds: | |
| 1906 case OP_DB.OPdi: | |
| 1907 case OP_DB.OPdl: | |
| 1908 break; | |
| 1909 default: | |
| 1910 asmerr(ASMERRMSGS.EM_float); | |
| 1911 } | |
| 1912 goto L2; | |
| 1913 | |
| 1914 case TOK.TOKfloat32v: | |
| 1915 case TOK.TOKfloat64v: | |
| 1916 case TOK.TOKfloat80v: | |
| 1917 switch (op) | |
| 1918 { | |
| 1919 case OP_DB.OPdf: | |
| 1920 dt.f = asmtok.float80value; | |
| 1921 break; | |
| 1922 case OP_DB.OPdd: | |
| 1923 dt.d = asmtok.float80value; | |
| 1924 break; | |
| 1925 case OP_DB.OPde: | |
| 1926 dt.ld = asmtok.float80value; | |
| 1927 break; | |
| 1928 default: | |
| 1929 asmerr(ASMERRMSGS.EM_num); | |
| 1930 } | |
| 1931 goto L2; | |
| 1932 | |
| 1933 L2: | |
| 1934 memcpy(c.IEV1.as.bytes + usBytes,&dt,usSize); | |
| 1935 usBytes += usSize; | |
| 1936 break; | |
| 1937 | |
| 1938 case TOK.TOKstring: | |
| 1939 len = asmtok.len; | |
| 1940 q = cast(ubyte*)asmtok.ustring; | |
| 1941 L3: | |
| 1942 if (len) | |
| 1943 { | |
| 1944 usMaxbytes += len * usSize; | |
|
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
1945 c.IEV1.as.bytes = cast(char*)realloc(c.IEV1.as.bytes,usMaxbytes); |
| 0 | 1946 memcpy(c.IEV1.as.bytes + usBytes,asmtok.ustring,len); |
| 1947 | |
| 1948 char* p = c.IEV1.as.bytes + usBytes; | |
| 1949 for (size_t i = 0; i < len; i++) | |
| 1950 { | |
| 1951 // Be careful that this works | |
| 1952 memset(p, 0, usSize); | |
| 1953 switch (op) | |
| 1954 { | |
| 1955 case OP_DB.OPdb: | |
| 1956 *p = cast(ubyte)*q; | |
| 1957 if (*p != *q) | |
| 1958 asmerr(ASMERRMSGS.EM_char); | |
| 1959 break; | |
| 1960 | |
| 1961 case OP_DB.OPds: | |
| 1962 *cast(short*)p = *cast(ubyte*)q; | |
| 1963 if (*cast(short*)p != *q) | |
| 1964 asmerr(ASMERRMSGS.EM_char); | |
| 1965 break; | |
| 1966 | |
| 1967 case OP_DB.OPdi: | |
| 1968 case OP_DB.OPdl: | |
| 1969 *cast(int*)p = *q; | |
| 1970 break; | |
| 1971 | |
| 1972 default: | |
| 1973 asmerr(ASMERRMSGS.EM_float); | |
| 1974 } | |
| 1975 q++; | |
| 1976 p += usSize; | |
| 1977 } | |
| 1978 | |
| 1979 usBytes += len * usSize; | |
| 1980 } | |
| 1981 break; | |
| 1982 | |
| 1983 case TOK.TOKidentifier: | |
| 1984 { | |
| 1985 Expression e = new IdentifierExp(asmstate.loc, asmtok.ident); | |
| 1986 e = e.semantic(asmstate.sc); | |
| 1987 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 1988 if (e.op == TOK.TOKint64) | |
| 1989 { | |
| 1990 dt.ul = e.toInteger(); | |
| 1991 goto L2; | |
| 1992 } | |
| 1993 else if (e.op == TOK.TOKfloat64) | |
| 1994 { | |
| 1995 switch (op) | |
| 1996 { | |
| 1997 case OP_DB.OPdf: | |
| 1998 dt.f = e.toReal(); | |
| 1999 break; | |
| 2000 case OP_DB.OPdd: | |
| 2001 dt.d = e.toReal(); | |
| 2002 break; | |
| 2003 case OP_DB.OPde: | |
| 2004 dt.ld = e.toReal(); | |
| 2005 break; | |
| 2006 default: | |
| 2007 asmerr(ASMERRMSGS.EM_num); | |
| 2008 } | |
| 2009 goto L2; | |
| 2010 } | |
| 2011 else if (e.op == TOK.TOKstring) | |
| 2012 { | |
| 2013 StringExp se = cast(StringExp)e; | |
| 2014 q = cast(ubyte*)se.string_; | |
| 2015 len = se.len; | |
| 2016 goto L3; | |
| 2017 } | |
| 2018 goto Ldefault; | |
| 2019 } | |
| 2020 | |
| 2021 default: | |
| 2022 Ldefault: | |
| 2023 asmerr(ASMERRMSGS.EM_const_init); // constant initializer | |
| 2024 break; | |
| 2025 } | |
| 2026 c.IEV1.as.len = usBytes; | |
| 2027 | |
| 2028 asm_token(); | |
| 2029 if (tok_value != TOK.TOKcomma) | |
| 2030 break; | |
| 2031 | |
| 2032 asm_token(); | |
| 2033 } | |
| 2034 | |
| 2035 c = asm_genloc(asmstate.loc, c); | |
| 2036 | |
| 2037 asmstate.statement.regs |= /* mES| */ ALLREGS; | |
| 2038 asmstate.bReturnax = true; | |
| 2039 | |
| 2040 return c; | |
| 2041 } | |
| 2042 | |
| 2043 /********************************** | |
| 2044 * Parse and get integer expression. | |
| 2045 */ | |
| 2046 | |
| 2047 int asm_getnum() | |
| 2048 { | |
| 2049 int v; | |
| 2050 long i; | |
| 2051 | |
| 2052 switch (tok_value) | |
| 2053 { | |
| 2054 case TOK.TOKint32v: | |
| 2055 v = asmtok.int32value; | |
| 2056 break; | |
| 2057 | |
| 2058 case TOK.TOKuns32v: | |
| 2059 v = asmtok.uns32value; | |
| 2060 break; | |
| 2061 | |
| 2062 case TOK.TOKidentifier: | |
| 2063 Expression e = new IdentifierExp(asmstate.loc, asmtok.ident); | |
| 2064 e = e.semantic(asmstate.sc); | |
| 2065 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 2066 i = e.toInteger(); | |
| 2067 v = cast(int) i; | |
| 2068 if (v != i) | |
| 2069 asmerr(ASMERRMSGS.EM_num); | |
| 2070 break; | |
| 2071 | |
| 2072 default: | |
| 2073 asmerr(ASMERRMSGS.EM_num); | |
| 2074 break; | |
| 2075 } | |
| 2076 | |
| 2077 asm_token(); | |
| 2078 | |
| 2079 return v; | |
| 2080 } | |
| 2081 | |
| 2082 | |
| 2083 /******************************* | |
| 2084 */ | |
| 2085 | |
| 2086 OPND* asm_cond_exp() | |
| 2087 { | |
| 2088 OPND* o1; | |
| 2089 OPND* o2; | |
| 2090 OPND* o3; | |
| 2091 | |
| 2092 //printf("asm_cond_exp()\n"); | |
| 2093 o1 = asm_log_or_exp(); | |
| 2094 if (tok_value == TOK.TOKquestion) | |
| 2095 { | |
| 2096 asm_token(); | |
| 2097 o2 = asm_cond_exp(); | |
| 2098 asm_token(); | |
| 2099 asm_chktok(TOK.TOKcolon, ASMERRMSGS.EM_colon); | |
| 2100 o3 = asm_cond_exp(); | |
| 2101 o1 = (o1.disp) ? o2 : o3; | |
| 2102 } | |
| 2103 | |
| 2104 return o1; | |
| 2105 } | |
| 2106 | |
| 2107 regm_t asm_modify_regs(PTRNTAB ptb, OPND* popnd1, OPND* popnd2) | |
| 2108 { | |
| 2109 regm_t usRet = 0; | |
| 2110 | |
| 2111 switch (ptb.pptb0.usFlags & MOD_MASK) { | |
| 2112 case _modsi: | |
| 2113 usRet |= mSI; | |
| 2114 break; | |
| 2115 case _moddx: | |
| 2116 usRet |= mDX; | |
| 2117 break; | |
| 2118 case _mod2: | |
| 2119 if (popnd2) | |
| 2120 usRet |= asm_modify_regs(ptb, popnd2, null); | |
| 2121 break; | |
| 2122 case _modax: | |
| 2123 usRet |= mAX; | |
| 2124 break; | |
| 2125 case _modnot1: | |
| 2126 popnd1 = null; | |
| 2127 break; | |
| 2128 case _modaxdx: | |
| 2129 usRet |= (mAX | mDX); | |
| 2130 break; | |
| 2131 case _moddi: | |
| 2132 usRet |= mDI; | |
| 2133 break; | |
| 2134 case _modsidi: | |
| 2135 usRet |= (mSI | mDI); | |
| 2136 break; | |
| 2137 case _modcx: | |
| 2138 usRet |= mCX; | |
| 2139 break; | |
| 2140 case _modes: | |
| 2141 /*usRet |= mES;*/ | |
| 2142 break; | |
| 2143 case _modall: | |
| 2144 asmstate.bReturnax = true; | |
| 2145 return /*mES |*/ ALLREGS; | |
| 2146 case _modsiax: | |
| 2147 usRet |= (mSI | mAX); | |
| 2148 break; | |
| 2149 case _modsinot1: | |
| 2150 usRet |= mSI; | |
| 2151 popnd1 = null; | |
| 2152 break; | |
| 2153 default: | |
| 2154 break; /// | |
| 2155 } | |
| 2156 if (popnd1 && ASM_GET_aopty(popnd1.usFlags) == ASM_OPERAND_TYPE._reg) { | |
| 2157 switch (ASM_GET_amod(popnd1.usFlags)) { | |
| 2158 default: | |
| 2159 if (ASM_GET_uSizemask(popnd1.usFlags) == _8) { | |
| 2160 switch(popnd1.base.val) { | |
| 2161 case _AL: | |
| 2162 case _AH: | |
| 2163 usRet |= mAX; | |
| 2164 break; | |
| 2165 case _BL: | |
| 2166 case _BH: | |
| 2167 usRet |= mBX; | |
| 2168 break; | |
| 2169 case _CL: | |
| 2170 case _CH: | |
| 2171 usRet |= mCX; | |
| 2172 break; | |
| 2173 case _DL: | |
| 2174 case _DH: | |
| 2175 usRet |= mDX; | |
| 2176 break; | |
| 2177 } | |
| 2178 } | |
| 2179 else { | |
| 2180 switch (popnd1.base.val) { | |
| 2181 case _AX: | |
| 2182 usRet |= mAX; | |
| 2183 break; | |
| 2184 case _BX: | |
| 2185 usRet |= mBX; | |
| 2186 break; | |
| 2187 case _CX: | |
| 2188 usRet |= mCX; | |
| 2189 break; | |
| 2190 case _DX: | |
| 2191 usRet |= mDX; | |
| 2192 break; | |
| 2193 case _SI: | |
| 2194 usRet |= mSI; | |
| 2195 break; | |
| 2196 case _DI: | |
| 2197 usRet |= mDI; | |
| 2198 break; | |
| 2199 default: | |
| 2200 break; /// | |
| 2201 } | |
| 2202 } | |
| 2203 break; | |
| 2204 | |
| 2205 case ASM_MODIFIERS._rseg: | |
| 2206 //if (popnd1.base.val == _ES) | |
| 2207 //usRet |= mES; | |
| 2208 break; | |
| 2209 | |
| 2210 case ASM_MODIFIERS._rspecial: | |
| 2211 break; | |
| 2212 } | |
| 2213 } | |
| 2214 if (usRet & mAX) | |
| 2215 asmstate.bReturnax = true; | |
| 2216 | |
| 2217 return usRet; | |
| 2218 } | |
| 2219 | |
| 2220 | |
| 2221 /**************************** | |
| 2222 * Fill in the modregrm and sib bytes of code. | |
| 2223 */ | |
| 2224 | |
| 2225 uint X(ubyte r1, ubyte r2) { | |
| 2226 return (((r1) * 16) + (r2)); | |
| 2227 } | |
| 2228 | |
| 2229 uint Y(ubyte r1) { | |
| 2230 return X(r1, 9); | |
| 2231 } | |
| 2232 | |
| 2233 void asm_make_modrm_byte( | |
| 2234 ///debug { | |
| 2235 ubyte[] puchOpcode, uint* pusIdx, | |
| 2236 ///} | |
| 2237 code *pc, | |
| 2238 ushort usFlags, | |
| 2239 OPND *popnd, OPND *popnd2) | |
| 2240 { | |
| 2241 /// #undef modregrm | |
| 2242 | |
| 2243 union MODRM_BYTE // mrmb | |
| 2244 { | |
| 2245 struct MODRM | |
| 2246 { | |
| 2247 mixin(bitfields!( | |
| 2248 uint, "rm", 3, | |
| 2249 uint, "reg", 3, | |
| 2250 uint, "mod", 2)); | |
| 2251 } | |
| 2252 | |
| 2253 ubyte uchOpcode; | |
| 2254 MODRM modregrm; | |
| 2255 } | |
| 2256 | |
| 2257 union SIB_BYTE | |
| 2258 { | |
| 2259 struct SIB | |
| 2260 { | |
| 2261 | |
| 2262 mixin(bitfields!( | |
| 2263 uint, "base", 3, | |
| 2264 uint, "index", 3, | |
| 2265 uint, "ss", 2)); | |
| 2266 } | |
| 2267 | |
| 2268 ubyte uchOpcode; | |
| 2269 SIB sib; | |
| 2270 } | |
| 2271 | |
| 2272 | |
| 2273 MODRM_BYTE mrmb; | |
| 2274 SIB_BYTE sib; | |
| 2275 char bSib = false; | |
| 2276 char bDisp = false; | |
| 2277 char b32bit = false; | |
| 2278 ubyte* puc; | |
| 2279 char bModset = false; | |
| 2280 Dsymbol s; | |
| 2281 | |
| 2282 uint uSizemask = 0; | |
| 2283 ASM_OPERAND_TYPE aopty; | |
| 2284 ASM_MODIFIERS amod; | |
| 2285 ushort uRegmask; | |
| 2286 ubyte bOffsetsym = false; | |
| 2287 | |
| 2288 static if (false) { | |
| 2289 printf("asm_make_modrm_byte(usFlags = x%x)\n", usFlags); | |
| 2290 printf("op1: "); | |
| 2291 asm_output_flags(popnd.usFlags); | |
| 2292 if (popnd2) | |
| 2293 { | |
| 2294 printf(" op2: "); | |
| 2295 asm_output_flags(popnd2.usFlags); | |
| 2296 } | |
| 2297 printf("\n"); | |
| 2298 } | |
| 2299 | |
| 2300 uSizemask = ASM_GET_uSizemask(popnd.usFlags); | |
| 2301 aopty = ASM_GET_aopty(popnd.usFlags); | |
| 2302 amod = ASM_GET_amod(popnd.usFlags); | |
| 2303 uRegmask = ASM_GET_uRegmask(popnd.usFlags); | |
| 2304 s = popnd.s; | |
| 2305 if (s) | |
| 2306 { | |
| 2307 Declaration d = s.isDeclaration(); | |
| 2308 | |
| 2309 if (amod == ASM_MODIFIERS._fn16 && aopty == ASM_OPERAND_TYPE._rel && popnd2) | |
| 2310 { | |
| 2311 aopty = ASM_OPERAND_TYPE._m; | |
| 2312 goto L1; | |
| 2313 } | |
| 2314 | |
| 2315 if (amod == ASM_MODIFIERS._fn16 || amod == ASM_MODIFIERS._fn32) | |
| 2316 { | |
| 2317 pc.Iflags |= CF.CFoff; | |
| 2318 debug { | |
| 2319 puchOpcode[(*pusIdx)++] = 0; | |
| 2320 puchOpcode[(*pusIdx)++] = 0; | |
| 2321 } | |
| 2322 if (aopty == ASM_OPERAND_TYPE._m || aopty == ASM_OPERAND_TYPE._mnoi) | |
| 2323 { | |
| 2324 pc.IFL1 = FL.FLdata; | |
| 2325 pc.IEVdsym1() = d; | |
| 2326 pc.IEVoffset1() = 0; | |
| 2327 } | |
| 2328 else | |
| 2329 { | |
| 2330 if (aopty == ASM_OPERAND_TYPE._p) | |
| 2331 pc.Iflags |= CF.CFseg; | |
| 2332 | |
| 2333 debug if (aopty == ASM_OPERAND_TYPE._p || aopty == ASM_OPERAND_TYPE._rel) | |
| 2334 { | |
| 2335 puchOpcode[(*pusIdx)++] = 0; | |
| 2336 puchOpcode[(*pusIdx)++] = 0; | |
| 2337 } | |
| 2338 | |
| 2339 pc.IFL2 = FL.FLfunc; | |
| 2340 pc.IEVdsym2() = d; | |
| 2341 pc.IEVoffset2() = 0; | |
| 2342 //return; | |
| 2343 } | |
| 2344 } | |
| 2345 else | |
| 2346 { | |
| 2347 L1: | |
| 2348 LabelDsymbol label = s.isLabel(); | |
| 2349 if (label) | |
| 2350 { | |
| 2351 if (s == asmstate.psDollar) | |
| 2352 { | |
| 2353 pc.IFL1 = FL.FLconst; | |
| 2354 if (uSizemask & (_8 | _16)) | |
| 2355 pc.IEVint1() = popnd.disp; | |
| 2356 else if (uSizemask & _32) | |
| 2357 pc.IEVpointer1() = cast(targ_size_t) popnd.disp; | |
| 2358 } | |
| 2359 else | |
| 2360 { | |
| 2361 pc.IFL1 = FL.FLblockoff; | |
| 2362 pc.IEVlsym1() = label; | |
| 2363 } | |
| 2364 } | |
| 2365 else if (s == asmstate.psLocalsize) | |
| 2366 { | |
| 2367 pc.IFL1 = FL.FLlocalsize; | |
| 2368 pc.IEVdsym1() = null; | |
| 2369 pc.Iflags |= CF.CFoff; | |
| 2370 pc.IEVoffset1() = popnd.disp; | |
| 2371 } | |
| 2372 else if (s.isFuncDeclaration()) | |
| 2373 { | |
| 2374 pc.IFL1 = FL.FLfunc; | |
| 2375 pc.IEVdsym1() = d; | |
| 2376 pc.IEVoffset1() = popnd.disp; | |
| 2377 } | |
| 2378 else | |
| 2379 { | |
| 2380 debug if (debuga) | |
| 2381 printf("Setting up symbol %s\n", d.ident.toChars()); | |
| 2382 | |
| 2383 pc.IFL1 = FL.FLdsymbol; | |
| 2384 pc.IEVdsym1() = d; | |
| 2385 pc.Iflags |= CF.CFoff; | |
| 2386 pc.IEVoffset1() = popnd.disp; | |
| 2387 } | |
| 2388 } | |
| 2389 } | |
| 2390 | |
| 2391 mrmb.modregrm.reg = usFlags & NUM_MASK; | |
| 2392 | |
| 2393 if (s && (aopty == ASM_OPERAND_TYPE._m || aopty == ASM_OPERAND_TYPE._mnoi) && !s.isLabel()) | |
| 2394 { | |
| 2395 if (s == asmstate.psLocalsize) | |
| 2396 { | |
| 2397 DATA_REF: | |
| 2398 mrmb.modregrm.rm = BPRM; | |
| 2399 if (amod == ASM_MODIFIERS._addr16 || amod == ASM_MODIFIERS._addr32) | |
| 2400 mrmb.modregrm.mod = 0x2; | |
| 2401 else | |
| 2402 mrmb.modregrm.mod = 0x0; | |
| 2403 } | |
| 2404 else | |
| 2405 { | |
| 2406 Declaration d = s.isDeclaration(); | |
| 2407 assert(d); | |
| 2408 if (d.isDataseg() || d.isCodeseg()) | |
| 2409 { | |
| 2410 if (( I32 && amod == ASM_MODIFIERS._addr16) || | |
| 2411 (!I32 && amod == ASM_MODIFIERS._addr32)) | |
| 2412 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2413 goto DATA_REF; | |
| 2414 } | |
| 2415 mrmb.modregrm.rm = BPRM; | |
| 2416 mrmb.modregrm.mod = 0x2; | |
| 2417 } | |
| 2418 } | |
| 2419 | |
| 2420 if (aopty == ASM_OPERAND_TYPE._reg || amod == ASM_MODIFIERS._rspecial) { | |
| 2421 mrmb.modregrm.mod = 0x3; | |
| 2422 mrmb.modregrm.rm = mrmb.modregrm.rm | popnd.base.val; | |
| 2423 } | |
| 2424 else if (amod == ASM_MODIFIERS._addr16 || (amod == ASM_MODIFIERS._flbl && !I32)) | |
| 2425 { | |
| 2426 uint rm; | |
| 2427 | |
| 2428 debug if (debuga) | |
| 2429 printf("This is an ADDR16\n"); | |
| 2430 | |
| 2431 if (!popnd.pregDisp1) | |
| 2432 { rm = 0x6; | |
| 2433 if (!s) | |
| 2434 bDisp = true; | |
| 2435 } | |
| 2436 else | |
| 2437 { | |
| 2438 uint r1r2; | |
| 2439 | |
| 2440 if (popnd.pregDisp2) | |
| 2441 r1r2 = X(popnd.pregDisp1.val,popnd.pregDisp2.val); | |
| 2442 else | |
| 2443 r1r2 = Y(popnd.pregDisp1.val); | |
| 2444 | |
| 2445 switch (r1r2) | |
| 2446 { | |
| 2447 case X(_BX,_SI): rm = 0; break; | |
| 2448 case X(_BX,_DI): rm = 1; break; | |
| 2449 case Y(_BX): rm = 7; break; | |
| 2450 | |
| 2451 case X(_BP,_SI): rm = 2; break; | |
| 2452 case X(_BP,_DI): rm = 3; break; | |
| 2453 case Y(_BP): rm = 6; bDisp = true; break; | |
| 2454 | |
| 2455 case X(_SI,_BX): rm = 0; break; | |
| 2456 case X(_SI,_BP): rm = 2; break; | |
| 2457 case Y(_SI): rm = 4; break; | |
| 2458 | |
| 2459 case X(_DI,_BX): rm = 1; break; | |
| 2460 case X(_DI,_BP): rm = 3; break; | |
| 2461 case Y(_DI): rm = 5; break; | |
| 2462 | |
| 2463 default: | |
| 2464 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2465 } | |
| 2466 } | |
| 2467 mrmb.modregrm.rm = rm; | |
| 2468 | |
| 2469 debug if (debuga) | |
| 2470 printf("This is an mod = %d, popnd.s =%ld, popnd.disp = %ld\n", | |
| 2471 mrmb.modregrm.mod, s, popnd.disp); | |
| 2472 | |
| 2473 if (!s || (!mrmb.modregrm.mod && popnd.disp)) | |
| 2474 { | |
| 2475 if ((!popnd.disp && !bDisp) || !popnd.pregDisp1) | |
| 2476 mrmb.modregrm.mod = 0x0; | |
| 2477 else if (popnd.disp >= CHAR_MIN && popnd.disp <= SCHAR_MAX) | |
| 2478 mrmb.modregrm.mod = 0x1; | |
| 2479 else | |
| 2480 mrmb.modregrm.mod = 0X2; | |
| 2481 } | |
| 2482 else | |
| 2483 bOffsetsym = true; | |
| 2484 | |
| 2485 } | |
| 2486 else if (amod == ASM_MODIFIERS._addr32 || (amod == ASM_MODIFIERS._flbl && I32)) | |
| 2487 { | |
| 2488 debug if (debuga) | |
| 2489 printf("This is an ADDR32\n"); | |
| 2490 | |
| 2491 if (!popnd.pregDisp1) | |
| 2492 mrmb.modregrm.rm = 0x5; | |
| 2493 else if (popnd.pregDisp2 || | |
| 2494 popnd.uchMultiplier || | |
| 2495 popnd.pregDisp1.val == _ESP) | |
| 2496 { | |
| 2497 if (popnd.pregDisp2) | |
| 2498 { | |
| 2499 if (popnd.pregDisp2.val == _ESP) | |
| 2500 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2501 } | |
| 2502 else | |
| 2503 { | |
| 2504 if (popnd.uchMultiplier && popnd.pregDisp1.val ==_ESP) | |
| 2505 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2506 bDisp = true; | |
| 2507 } | |
| 2508 | |
| 2509 mrmb.modregrm.rm = 0x4; | |
| 2510 bSib = true; | |
| 2511 if (bDisp) | |
| 2512 { | |
| 2513 if (!popnd.uchMultiplier && | |
| 2514 popnd.pregDisp1.val==_ESP) | |
| 2515 { | |
| 2516 sib.sib.base = popnd.pregDisp1.val; | |
| 2517 sib.sib.index = 0x4; | |
| 2518 } | |
| 2519 else | |
| 2520 { | |
| 2521 debug if (debuga) | |
| 2522 printf("Resetting the mod to 0\n"); | |
| 2523 | |
| 2524 if (popnd.pregDisp2) | |
| 2525 { | |
| 2526 if (popnd.pregDisp2.val != _EBP) | |
| 2527 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2528 } | |
| 2529 else | |
| 2530 { | |
| 2531 mrmb.modregrm.mod = 0x0; | |
| 2532 bModset = true; | |
| 2533 } | |
| 2534 | |
| 2535 sib.sib.base = 0x5; | |
| 2536 sib.sib.index = popnd.pregDisp1.val; | |
| 2537 } | |
| 2538 } | |
| 2539 else | |
| 2540 { | |
| 2541 sib.sib.base = popnd.pregDisp1.val; | |
| 2542 // | |
| 2543 // This is to handle the special case | |
| 2544 // of using the EBP register and no | |
| 2545 // displacement. You must put in an | |
| 2546 // 8 byte displacement in order to | |
| 2547 // get the correct opcodes. | |
| 2548 // | |
| 2549 if (popnd.pregDisp1.val == _EBP && (!popnd.disp && !s)) | |
| 2550 { | |
| 2551 debug if (debuga) | |
| 2552 printf("Setting the mod to 1 in the _EBP case\n"); | |
| 2553 | |
| 2554 mrmb.modregrm.mod = 0x1; | |
| 2555 bDisp = true; // Need a | |
| 2556 // displacement | |
| 2557 bModset = true; | |
| 2558 } | |
| 2559 | |
| 2560 sib.sib.index = popnd.pregDisp2.val; | |
| 2561 } | |
| 2562 switch (popnd.uchMultiplier) | |
| 2563 { | |
| 2564 case 0: sib.sib.ss = 0; break; | |
| 2565 case 1: sib.sib.ss = 0; break; | |
| 2566 case 2: sib.sib.ss = 1; break; | |
| 2567 case 4: sib.sib.ss = 2; break; | |
| 2568 case 8: sib.sib.ss = 3; break; | |
| 2569 | |
| 2570 default: | |
| 2571 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2572 break; | |
| 2573 } | |
| 2574 if (bDisp && sib.sib.base == 0x5) | |
| 2575 b32bit = true; | |
| 2576 } | |
| 2577 else | |
| 2578 { | |
| 2579 uint rm; | |
| 2580 | |
| 2581 if (popnd.uchMultiplier) | |
| 2582 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2583 switch (popnd.pregDisp1.val) | |
| 2584 { | |
| 2585 case _EAX: rm = 0; break; | |
| 2586 case _ECX: rm = 1; break; | |
| 2587 case _EDX: rm = 2; break; | |
| 2588 case _EBX: rm = 3; break; | |
| 2589 case _ESI: rm = 6; break; | |
| 2590 case _EDI: rm = 7; break; | |
| 2591 | |
| 2592 case _EBP: | |
| 2593 if (!popnd.disp && !s) | |
| 2594 { | |
| 2595 mrmb.modregrm.mod = 0x1; | |
| 2596 bDisp = true; // Need a displacement | |
| 2597 bModset = true; | |
| 2598 } | |
| 2599 rm = 5; | |
| 2600 break; | |
| 2601 | |
| 2602 default: | |
| 2603 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2604 break; | |
| 2605 } | |
| 2606 mrmb.modregrm.rm = rm; | |
| 2607 } | |
| 2608 if (!bModset && (!s || (!mrmb.modregrm.mod && popnd.disp))) | |
| 2609 { | |
| 2610 if ((!popnd.disp && !mrmb.modregrm.mod) || | |
| 2611 (!popnd.pregDisp1 && !popnd.pregDisp2)) | |
| 2612 { | |
| 2613 mrmb.modregrm.mod = 0x0; | |
| 2614 bDisp = true; | |
| 2615 } | |
| 2616 else if (popnd.disp >= CHAR_MIN && popnd.disp <= SCHAR_MAX) | |
| 2617 mrmb.modregrm.mod = 0x1; | |
| 2618 else | |
| 2619 mrmb.modregrm.mod = 0x2; | |
| 2620 } | |
| 2621 else | |
| 2622 bOffsetsym = true; | |
| 2623 } | |
| 2624 if (popnd2 && !mrmb.modregrm.reg && | |
| 2625 asmstate.ucItype != IT.ITshift && | |
| 2626 (ASM_GET_aopty(popnd2.usFlags) == ASM_OPERAND_TYPE._reg || | |
| 2627 ASM_GET_amod(popnd2.usFlags) == ASM_MODIFIERS._rseg || | |
| 2628 ASM_GET_amod(popnd2.usFlags) == ASM_MODIFIERS._rspecial)) | |
| 2629 { | |
| 2630 mrmb.modregrm.reg = popnd2.base.val; | |
| 2631 } | |
| 2632 debug puchOpcode[ (*pusIdx)++ ] = mrmb.uchOpcode; | |
| 2633 | |
| 2634 pc.Irm = mrmb.uchOpcode; | |
| 2635 //printf("Irm = %02x\n", pc.Irm); | |
| 2636 if (bSib) | |
| 2637 { | |
| 2638 debug puchOpcode[ (*pusIdx)++ ] = sib.uchOpcode; | |
| 2639 pc.Isib= sib.uchOpcode; | |
| 2640 } | |
| 2641 if ((!s || (popnd.pregDisp1 && !bOffsetsym)) && | |
| 2642 aopty != ASM_OPERAND_TYPE._imm && | |
| 2643 (popnd.disp || bDisp)) | |
| 2644 { | |
| 2645 if (popnd.usFlags & _a16) | |
| 2646 { | |
| 2647 debug { | |
| 2648 puc = (cast(ubyte*) &(popnd.disp)); | |
| 2649 puchOpcode[(*pusIdx)++] = puc[1]; | |
| 2650 puchOpcode[(*pusIdx)++] = puc[0]; | |
| 2651 } | |
| 2652 if (usFlags & (_modrm | NUM_MASK)) { | |
| 2653 debug if (debuga) | |
| 2654 printf("Setting up value %ld\n", popnd.disp); | |
| 2655 | |
| 2656 pc.IEVint1() = popnd.disp; | |
| 2657 pc.IFL1 = FL.FLconst; | |
| 2658 } | |
| 2659 else { | |
| 2660 pc.IEVint2() = popnd.disp; | |
| 2661 pc.IFL2 = FL.FLconst; | |
| 2662 } | |
| 2663 | |
| 2664 } | |
| 2665 else | |
| 2666 { | |
| 2667 debug { | |
| 2668 puc = (cast(ubyte*) &(popnd.disp)); | |
| 2669 puchOpcode[(*pusIdx)++] = puc[3]; | |
| 2670 puchOpcode[(*pusIdx)++] = puc[2]; | |
| 2671 puchOpcode[(*pusIdx)++] = puc[1]; | |
| 2672 puchOpcode[(*pusIdx)++] = puc[0]; | |
| 2673 } | |
| 2674 if (usFlags & (_modrm | NUM_MASK)) { | |
| 2675 debug if (debuga) | |
| 2676 printf("Setting up value %ld\n", popnd.disp); | |
| 2677 | |
| 2678 pc.IEVpointer1() = cast(targ_size_t) popnd.disp; | |
| 2679 pc.IFL1 = FL.FLconst; | |
| 2680 } else { | |
| 2681 pc.IEVpointer2() = cast(targ_size_t) popnd.disp; | |
| 2682 pc.IFL2 = FL.FLconst; | |
| 2683 } | |
| 2684 } | |
| 2685 } | |
| 2686 } | |
| 2687 | |
| 2688 void asm_output_popnd(OPND* popnd) | |
| 2689 { | |
| 2690 if (popnd.segreg) | |
| 2691 printf("%s:", popnd.segreg.regstr); | |
| 2692 | |
| 2693 if (popnd.s) | |
| 2694 writef("%s", popnd.s.ident.toChars()); | |
| 2695 | |
| 2696 if (popnd.base) | |
| 2697 printf("%s", popnd.base.regstr); | |
| 2698 | |
| 2699 if (popnd.pregDisp1) { | |
| 2700 if (popnd.pregDisp2) { | |
| 2701 if (popnd.usFlags & _a32) | |
| 2702 if (popnd.uchMultiplier) | |
| 2703 printf("[%s][%s*%d]", | |
| 2704 popnd.pregDisp1.regstr, | |
| 2705 popnd.pregDisp2.regstr, | |
| 2706 popnd.uchMultiplier); | |
| 2707 else | |
| 2708 printf("[%s][%s]", | |
| 2709 popnd.pregDisp1.regstr, | |
| 2710 popnd.pregDisp2.regstr); | |
| 2711 else | |
| 2712 printf("[%s+%s]", | |
| 2713 popnd.pregDisp1.regstr, | |
| 2714 popnd.pregDisp2.regstr); | |
| 2715 } | |
| 2716 else { | |
| 2717 if (popnd.uchMultiplier) | |
| 2718 printf("[%s*%d]", | |
| 2719 popnd.pregDisp1.regstr, | |
| 2720 popnd.uchMultiplier); | |
| 2721 else | |
| 2722 printf("[%s]", | |
| 2723 popnd.pregDisp1.regstr); | |
| 2724 } | |
| 2725 } | |
| 2726 if (ASM_GET_aopty(popnd.usFlags) == ASM_OPERAND_TYPE._imm) | |
| 2727 printf("%lxh", popnd.disp); | |
| 2728 else if (popnd.disp) | |
| 2729 printf("+%lxh", popnd.disp); | |
| 2730 } | |
| 2731 | |
| 2732 /******************************* | |
| 2733 * Prepend line number to c. | |
| 2734 */ | |
| 2735 | |
| 2736 code* asm_genloc(Loc loc, code* c) | |
| 2737 { | |
| 2738 if (global.params.symdebug) | |
| 2739 { | |
| 2740 code* pcLin; | |
| 2741 Srcpos srcpos; | |
| 2742 | |
| 2743 srcpos.Slinnum = loc.linnum; | |
| 2744 srcpos.Sfilename = cast(char*)toStringz(loc.filename); | |
| 2745 pcLin = genlinnum(null, srcpos); | |
| 2746 | |
| 2747 c = cat(pcLin, c); | |
| 2748 } | |
| 2749 | |
| 2750 return c; | |
| 2751 } | |
| 2752 | |
| 2753 opflag_t asm_determine_operand_flags(OPND* popnd) | |
| 2754 { | |
| 2755 Dsymbol ps; | |
| 2756 int ty; | |
| 2757 opflag_t us; | |
| 2758 opflag_t sz; | |
| 2759 ASM_OPERAND_TYPE opty; | |
| 2760 ASM_MODIFIERS amod; | |
| 2761 | |
| 2762 // If specified 'offset' or 'segment' but no symbol | |
| 2763 if ((popnd.bOffset || popnd.bSeg) && !popnd.s) | |
| 2764 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2765 | |
| 2766 if (asmstate.ucItype == IT.ITfloat) | |
| 2767 return asm_determine_float_flags(popnd); | |
| 2768 | |
| 2769 // If just a register | |
| 2770 if (popnd.base && !popnd.s && !popnd.disp && !popnd.real_) | |
| 2771 return popnd.base.ty; | |
| 2772 | |
| 2773 debug if (debuga) | |
| 2774 printf("popnd.base = %s\n, popnd.pregDisp1 = %ld\n", popnd.base ? popnd.base.regstr : "NONE", popnd.pregDisp1); | |
| 2775 | |
| 2776 ps = popnd.s; | |
| 2777 Declaration ds = ps ? ps.isDeclaration() : null; | |
| 2778 if (ds && ds.storage_class & STC.STClazy) | |
| 2779 sz = _anysize; | |
| 2780 else | |
| 2781 sz = cast(ushort)asm_type_size((ds && ds.storage_class & (STC.STCout | STC.STCref)) ? popnd.ptype.pointerTo() : popnd.ptype); | |
| 2782 if (popnd.pregDisp1 && !popnd.base) | |
| 2783 { | |
| 2784 if (ps && ps.isLabel() && sz == _anysize) | |
| 2785 sz = I32 ? _32 : _16; | |
| 2786 return (popnd.pregDisp1.ty & _r32) | |
| 2787 ? CONSTRUCT_FLAGS(sz, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._addr32, 0) | |
| 2788 : CONSTRUCT_FLAGS(sz, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._addr16, 0); | |
| 2789 } | |
| 2790 else if (ps) | |
| 2791 { | |
| 2792 if (popnd.bOffset || popnd.bSeg || ps == asmstate.psLocalsize) | |
| 2793 return I32 | |
| 2794 ? CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0) | |
| 2795 : CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
| 2796 | |
| 2797 if (ps.isLabel()) | |
| 2798 { | |
| 2799 switch (popnd.ajt) | |
| 2800 { | |
| 2801 case ASM_JUMPTYPE.ASM_JUMPTYPE_UNSPECIFIED: | |
| 2802 if (ps == asmstate.psDollar) | |
| 2803 { | |
| 2804 if (popnd.disp >= CHAR_MIN && | |
| 2805 popnd.disp <= CHAR_MAX) | |
| 2806 us = CONSTRUCT_FLAGS(_8, _rel, ASM_MODIFIERS._flbl,0); | |
| 2807 else | |
| 2808 if (popnd.disp >= SHRT_MIN && | |
| 2809 popnd.disp <= SHRT_MIN) | |
| 2810 us = CONSTRUCT_FLAGS(_16, _rel, ASM_MODIFIERS._flbl,0); | |
| 2811 else | |
| 2812 us = CONSTRUCT_FLAGS(_32, _rel, ASM_MODIFIERS._flbl,0); | |
| 2813 } | |
| 2814 else if (asmstate.ucItype != ITjump) | |
| 2815 { | |
| 2816 if (sz == _8) | |
| 2817 { us = CONSTRUCT_FLAGS(_8,ASM_OPERAND_TYPE._rel,ASM_MODIFIERS._flbl,0); | |
| 2818 break; | |
| 2819 } | |
| 2820 goto case_near; | |
| 2821 } | |
| 2822 else | |
| 2823 us = I32 | |
| 2824 ? CONSTRUCT_FLAGS(_8|_32, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._flbl, 0) | |
| 2825 : CONSTRUCT_FLAGS(_8|_16, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._flbl, 0); | |
| 2826 break; | |
| 2827 | |
| 2828 case ASM_JUMPTYPE.ASM_JUMPTYPE_NEAR: | |
| 2829 case_near: | |
| 2830 us = I32 | |
| 2831 ? CONSTRUCT_FLAGS(_32, _rel, _flbl, 0) | |
| 2832 : CONSTRUCT_FLAGS(_16, _rel, _flbl, 0); | |
| 2833 break; | |
| 2834 case ASM_JUMPTYPE.ASM_JUMPTYPE_SHORT: | |
| 2835 us = CONSTRUCT_FLAGS(_8, _rel, _flbl, 0); | |
| 2836 break; | |
| 2837 case ASM_JUMPTYPE.ASM_JUMPTYPE_FAR: | |
| 2838 us = I32 | |
| 2839 ? CONSTRUCT_FLAGS(_48, _rel, _flbl, 0) | |
| 2840 : CONSTRUCT_FLAGS(_32, _rel, _flbl, 0); | |
| 2841 break; | |
| 2842 default: | |
| 2843 assert(0); | |
| 2844 } | |
| 2845 return us; | |
| 2846 } | |
| 2847 if (!popnd.ptype) | |
| 2848 return CONSTRUCT_FLAGS(sz, _m, _normal, 0); | |
| 2849 ty = popnd.ptype.ty; | |
| 2850 if (ty == Tpointer && popnd.ptype.nextOf().ty == Tfunction && | |
| 2851 !ps.isVarDeclaration()) | |
| 2852 { | |
| 2853 static if (true) { | |
| 2854 return CONSTRUCT_FLAGS(_32, _m, _fn16, 0); | |
| 2855 } else { | |
| 2856 ty = popnd.ptype.Tnext.Tty; | |
| 2857 if (tyfarfunc(tybasic(ty))) { | |
| 2858 return I32 | |
| 2859 ? CONSTRUCT_FLAGS(_48, _mnoi, _fn32, 0) | |
| 2860 : CONSTRUCT_FLAGS(_32, _mnoi, _fn32, 0); | |
| 2861 } | |
| 2862 else { | |
| 2863 return I32 | |
| 2864 ? CONSTRUCT_FLAGS(_32, _m, _fn16, 0) | |
| 2865 : CONSTRUCT_FLAGS(_16, _m, _fn16, 0); | |
| 2866 } | |
| 2867 } | |
| 2868 } | |
| 2869 else if (ty == TY.Tfunction) | |
| 2870 { | |
| 2871 static if (true) { | |
| 2872 return CONSTRUCT_FLAGS(_32, _rel, _fn16, 0); | |
| 2873 } else { | |
| 2874 if (tyfarfunc(tybasic(ty))) | |
| 2875 return I32 | |
| 2876 ? CONSTRUCT_FLAGS(_48, _p, _fn32, 0) | |
| 2877 : CONSTRUCT_FLAGS(_32, _p, _fn32, 0); | |
| 2878 else | |
| 2879 return I32 | |
| 2880 ? CONSTRUCT_FLAGS(_32, _rel, _fn16, 0) | |
| 2881 : CONSTRUCT_FLAGS(_16, _rel, _fn16, 0); | |
| 2882 } | |
| 2883 } | |
| 2884 else if (asmstate.ucItype == IT.ITjump) | |
| 2885 { | |
| 2886 amod = _normal; | |
| 2887 goto L1; | |
| 2888 } | |
| 2889 else | |
| 2890 return CONSTRUCT_FLAGS(sz, _m, _normal, 0); | |
| 2891 } | |
| 2892 if (popnd.segreg /*|| popnd.bPtr*/) | |
| 2893 { | |
| 2894 amod = I32 ? _addr32 : _addr16; | |
| 2895 if (asmstate.ucItype == ITjump) | |
| 2896 { | |
| 2897 L1: | |
| 2898 opty = _m; | |
| 2899 if (I32) | |
| 2900 { if (sz == _48) | |
| 2901 opty = _mnoi; | |
| 2902 } | |
| 2903 else | |
| 2904 { | |
| 2905 if (sz == _32) | |
| 2906 opty = _mnoi; | |
| 2907 } | |
| 2908 us = CONSTRUCT_FLAGS(sz,opty,amod,0); | |
| 2909 } | |
| 2910 else | |
| 2911 us = CONSTRUCT_FLAGS(sz, | |
| 2912 // _rel, amod, 0); | |
| 2913 _m, amod, 0); | |
| 2914 } | |
| 2915 | |
| 2916 else if (popnd.ptype) | |
| 2917 us = CONSTRUCT_FLAGS(sz, _imm, _normal, 0); | |
| 2918 | |
| 2919 else if (popnd.disp >= CHAR_MIN && popnd.disp <= UCHAR_MAX) | |
| 2920 us = CONSTRUCT_FLAGS(_8 | _16 | _32, _imm, _normal, 0); | |
| 2921 else if (popnd.disp >= SHRT_MIN && popnd.disp <= USHRT_MAX) | |
| 2922 us = CONSTRUCT_FLAGS(_16 | _32, _imm, _normal, 0); | |
| 2923 else | |
| 2924 us = CONSTRUCT_FLAGS(_32, _imm, _normal, 0); | |
| 2925 return us; | |
| 2926 } | |
| 2927 | |
| 2928 /******************************* | |
| 2929 * Match flags in operand against flags in opcode table. | |
| 2930 * Returns: | |
| 2931 * !=0 if match | |
| 2932 */ | |
| 2933 | |
| 2934 ubyte asm_match_flags(opflag_t usOp, opflag_t usTable) | |
| 2935 { | |
| 2936 ASM_OPERAND_TYPE aoptyTable; | |
| 2937 ASM_OPERAND_TYPE aoptyOp; | |
| 2938 ASM_MODIFIERS amodTable; | |
| 2939 ASM_MODIFIERS amodOp; | |
| 2940 uint uRegmaskTable; | |
| 2941 uint uRegmaskOp; | |
| 2942 ubyte bRegmatch; | |
| 2943 ubyte bRetval = false; | |
| 2944 uint uSizemaskOp; | |
| 2945 uint uSizemaskTable; | |
| 2946 ubyte bSizematch; | |
| 2947 | |
| 2948 //printf("asm_match_flags(usOp = x%x, usTable = x%x)\n", usOp, usTable); | |
| 2949 if (asmstate.ucItype == IT.ITfloat) | |
| 2950 { | |
| 2951 bRetval = asm_match_float_flags(usOp, usTable); | |
| 2952 goto EXIT; | |
| 2953 } | |
| 2954 | |
| 2955 uSizemaskOp = ASM_GET_uSizemask(usOp); | |
| 2956 uSizemaskTable = ASM_GET_uSizemask(usTable); | |
| 2957 | |
| 2958 // Check #1, if the sizes do not match, NO match | |
| 2959 bSizematch = (uSizemaskOp & uSizemaskTable) != 0; | |
| 2960 | |
| 2961 amodOp = ASM_GET_amod(usOp); | |
| 2962 | |
| 2963 aoptyTable = ASM_GET_aopty(usTable); | |
| 2964 aoptyOp = ASM_GET_aopty(usOp); | |
| 2965 | |
| 2966 // _mmm64 matches with a 64 bit mem or an MMX register | |
| 2967 if (usTable == _mmm64) | |
| 2968 { | |
| 2969 if (usOp == _mm) | |
| 2970 goto Lmatch; | |
| 2971 if (aoptyOp == _m && (bSizematch || uSizemaskOp == _anysize)) | |
| 2972 goto Lmatch; | |
| 2973 goto EXIT; | |
| 2974 } | |
| 2975 | |
| 2976 // _xmm_m32, _xmm_m64, _xmm_m128 match with XMM register or memory | |
| 2977 if (usTable == _xmm_m32 || | |
| 2978 usTable == _xmm_m64 || | |
| 2979 usTable == _xmm_m128) | |
| 2980 { | |
| 2981 if (usOp == _xmm) | |
| 2982 goto Lmatch; | |
| 2983 if (aoptyOp == _m && (bSizematch || uSizemaskOp == _anysize)) | |
| 2984 goto Lmatch; | |
| 2985 } | |
| 2986 | |
| 2987 if (!bSizematch && uSizemaskTable) | |
| 2988 { | |
| 2989 //printf("no size match\n"); | |
| 2990 goto EXIT; | |
| 2991 } | |
| 2992 | |
| 2993 | |
| 2994 // | |
| 2995 // The operand types must match, otherwise return false. | |
| 2996 // There is one exception for the _rm which is a table entry which matches | |
| 2997 // _reg or _m | |
| 2998 // | |
| 2999 if (aoptyTable != aoptyOp) | |
| 3000 { | |
| 3001 if (aoptyTable == _rm && (aoptyOp == _reg || | |
| 3002 aoptyOp == _m || | |
| 3003 aoptyOp == _rel)) | |
| 3004 goto Lok; | |
| 3005 | |
| 3006 if (aoptyTable == _mnoi && aoptyOp == _m && | |
| 3007 (uSizemaskOp == _32 && amodOp == _addr16 || | |
| 3008 uSizemaskOp == _48 && amodOp == _addr32 || | |
| 3009 uSizemaskOp == _48 && amodOp == _normal) | |
| 3010 ) | |
| 3011 goto Lok; | |
| 3012 goto EXIT; | |
| 3013 } | |
| 3014 Lok: | |
| 3015 | |
| 3016 // | |
| 3017 // Looks like a match so far, check to see if anything special is going on | |
| 3018 // | |
| 3019 amodTable = ASM_GET_amod(usTable); | |
| 3020 uRegmaskOp = ASM_GET_uRegmask(usOp); | |
| 3021 uRegmaskTable = ASM_GET_uRegmask(usTable); | |
| 3022 bRegmatch = ((!uRegmaskTable && !uRegmaskOp) || | |
| 3023 (uRegmaskTable & uRegmaskOp)); | |
| 3024 | |
| 3025 switch (amodTable) | |
| 3026 { | |
| 3027 case _normal: // Normal's match with normals | |
| 3028 switch(amodOp) { | |
| 3029 case _normal: | |
| 3030 case _addr16: | |
| 3031 case _addr32: | |
| 3032 case _fn16: | |
| 3033 case _fn32: | |
| 3034 case _flbl: | |
| 3035 bRetval = (bSizematch || bRegmatch); | |
| 3036 goto EXIT; | |
| 3037 default: | |
| 3038 goto EXIT; | |
| 3039 } | |
| 3040 case _rseg: | |
| 3041 case _rspecial: | |
| 3042 bRetval = (amodOp == amodTable && bRegmatch); | |
| 3043 goto EXIT; | |
| 3044 } | |
| 3045 EXIT: | |
| 3046 static if (false) { | |
| 3047 printf("OP : "); | |
| 3048 asm_output_flags(usOp); | |
| 3049 printf("\nTBL: "); | |
| 3050 asm_output_flags(usTable); | |
| 3051 writef(": %s\n", bRetval ? "MATCH" : "NOMATCH"); | |
| 3052 } | |
| 3053 return bRetval; | |
| 3054 | |
| 3055 Lmatch: | |
| 3056 //printf("match\n"); | |
| 3057 return 1; | |
| 3058 } | |
| 3059 | |
| 3060 void asm_output_flags(opflag_t usFlags) | |
| 3061 { | |
| 3062 ASM_OPERAND_TYPE aopty = ASM_GET_aopty(usFlags); | |
| 3063 ASM_MODIFIERS amod = ASM_GET_amod(usFlags); | |
| 3064 uint uRegmask = ASM_GET_uRegmask(usFlags); | |
| 3065 uint uSizemask = ASM_GET_uSizemask(usFlags); | |
| 3066 | |
| 3067 if (uSizemask == _anysize) | |
| 3068 printf("_anysize "); | |
| 3069 else if (uSizemask == 0) | |
| 3070 printf("0 "); | |
| 3071 else | |
| 3072 { | |
| 3073 if (uSizemask & _8) | |
| 3074 printf("_8 "); | |
| 3075 if (uSizemask & _16) | |
| 3076 printf("_16 "); | |
| 3077 if (uSizemask & _32) | |
| 3078 printf("_32 "); | |
| 3079 if (uSizemask & _48) | |
| 3080 printf("_48 "); | |
| 3081 } | |
| 3082 | |
| 3083 printf("_"); | |
| 3084 switch (aopty) { | |
| 3085 case ASM_OPERAND_TYPE._reg: | |
| 3086 printf("reg "); | |
| 3087 break; | |
| 3088 case ASM_OPERAND_TYPE._m: | |
| 3089 printf("m "); | |
| 3090 break; | |
| 3091 case ASM_OPERAND_TYPE._imm: | |
| 3092 printf("imm "); | |
| 3093 break; | |
| 3094 case ASM_OPERAND_TYPE._rel: | |
| 3095 printf("rel "); | |
| 3096 break; | |
| 3097 case ASM_OPERAND_TYPE._mnoi: | |
| 3098 printf("mnoi "); | |
| 3099 break; | |
| 3100 case ASM_OPERAND_TYPE._p: | |
| 3101 printf("p "); | |
| 3102 break; | |
| 3103 case ASM_OPERAND_TYPE._rm: | |
| 3104 printf("rm "); | |
| 3105 break; | |
| 3106 case ASM_OPERAND_TYPE._float: | |
| 3107 printf("float "); | |
| 3108 break; | |
| 3109 default: | |
| 3110 printf(" UNKNOWN "); | |
| 3111 } | |
| 3112 | |
| 3113 printf("_"); | |
| 3114 switch (amod) { | |
| 3115 case ASM_MODIFIERS._normal: | |
| 3116 printf("normal "); | |
| 3117 if (uRegmask & 1) printf("_al "); | |
| 3118 if (uRegmask & 2) printf("_ax "); | |
| 3119 if (uRegmask & 4) printf("_eax "); | |
| 3120 if (uRegmask & 8) printf("_dx "); | |
| 3121 if (uRegmask & 0x10) printf("_cl "); | |
| 3122 return; | |
| 3123 case ASM_MODIFIERS._rseg: | |
| 3124 printf("rseg "); | |
| 3125 break; | |
| 3126 case ASM_MODIFIERS._rspecial: | |
| 3127 printf("rspecial "); | |
| 3128 break; | |
| 3129 case ASM_MODIFIERS._addr16: | |
| 3130 printf("addr16 "); | |
| 3131 break; | |
| 3132 case ASM_MODIFIERS._addr32: | |
| 3133 printf("addr32 "); | |
| 3134 break; | |
| 3135 case ASM_MODIFIERS._fn16: | |
| 3136 printf("fn16 "); | |
| 3137 break; | |
| 3138 case ASM_MODIFIERS._fn32: | |
| 3139 printf("fn32 "); | |
| 3140 break; | |
| 3141 case ASM_MODIFIERS._flbl: | |
| 3142 printf("flbl "); | |
| 3143 break; | |
| 3144 default: | |
| 3145 printf("UNKNOWN "); | |
| 3146 break; | |
| 3147 } | |
| 3148 | |
| 3149 printf("uRegmask=x%02x", uRegmask); | |
| 3150 } | |
| 3151 | |
| 3152 OPND* asm_log_or_exp() | |
| 3153 { | |
| 3154 OPND* o1 = asm_log_and_exp(); | |
| 3155 OPND* o2; | |
| 3156 | |
| 3157 while (tok_value == TOK.TOKoror) | |
| 3158 { | |
| 3159 asm_token(); | |
| 3160 o2 = asm_log_and_exp(); | |
| 3161 if (asm_isint(o1) && asm_isint(o2)) | |
| 3162 o1.disp = o1.disp || o2.disp; | |
| 3163 else | |
| 3164 asmerr(ASMERRMSGS.EM_bad_integral_operand); // illegal operand | |
| 3165 o2.disp = 0; | |
| 3166 o1 = asm_merge_opnds(o1, o2); | |
| 3167 } | |
| 3168 return o1; | |
| 3169 } | |
| 3170 | |
| 3171 void asm_chktok(TOK toknum, uint errnum) | |
| 3172 { | |
| 3173 if (tok_value == toknum) | |
| 3174 asm_token(); // scan past token | |
| 3175 else | |
| 3176 /* When we run out of tokens, asmtok is null. | |
| 3177 * But when this happens when a ';' was hit. | |
| 3178 */ | |
| 3179 asmerr(errnum, asmtok ? asmtok.toChars() : ";"); | |
| 3180 } | |
| 3181 | |
| 3182 opflag_t asm_determine_float_flags(OPND* popnd) | |
| 3183 { | |
| 3184 //printf("asm_determine_float_flags()\n"); | |
| 3185 | |
| 3186 opflag_t us; | |
| 3187 opflag_t usFloat; | |
| 3188 | |
| 3189 // Insure that if it is a register, that it is not a normal processor | |
| 3190 // register. | |
| 3191 | |
| 3192 if (popnd.base && | |
| 3193 !popnd.s && !popnd.disp && !popnd.real_ | |
| 3194 && !(popnd.base.ty & (_r8 | _r16 | _r32))) | |
| 3195 { | |
| 3196 return popnd.base.ty; | |
| 3197 } | |
| 3198 if (popnd.pregDisp1 && !popnd.base) | |
| 3199 { | |
| 3200 us = asm_float_type_size(popnd.ptype, &usFloat); | |
| 3201 //printf("us = x%x, usFloat = x%x\n", us, usFloat); | |
| 3202 if (popnd.pregDisp1.ty & _r32) | |
| 3203 return(CONSTRUCT_FLAGS(us, _m, _addr32, usFloat)); | |
| 3204 else if (popnd.pregDisp1.ty & _r16) | |
| 3205 return(CONSTRUCT_FLAGS(us, _m, _addr16, usFloat)); | |
| 3206 } | |
| 3207 else if (popnd.s !is null) | |
| 3208 { | |
| 3209 us = asm_float_type_size(popnd.ptype, &usFloat); | |
| 3210 return CONSTRUCT_FLAGS(us, _m, _normal, usFloat); | |
| 3211 } | |
| 3212 | |
| 3213 if (popnd.segreg) | |
| 3214 { | |
| 3215 us = asm_float_type_size(popnd.ptype, &usFloat); | |
| 3216 if (I32) | |
| 3217 return(CONSTRUCT_FLAGS(us, _m, _addr32, usFloat)); | |
| 3218 else | |
| 3219 return(CONSTRUCT_FLAGS(us, _m, _addr16, usFloat)); | |
| 3220 } | |
| 3221 | |
| 3222 static if (false) { | |
| 3223 if (popnd.real_) | |
| 3224 { | |
| 3225 switch (popnd.ptype.ty) | |
| 3226 { | |
| 3227 case TY.Tfloat32: | |
| 3228 popnd.s = fconst(popnd.real_); | |
| 3229 return(CONSTRUCT_FLAGS(_32, _m, _normal, 0)); | |
| 3230 | |
| 3231 case TY.Tfloat64: | |
| 3232 popnd.s = dconst(popnd.real_); | |
| 3233 return(CONSTRUCT_FLAGS(0, _m, _normal, _64)); | |
| 3234 | |
| 3235 case TY.Tfloat80: | |
| 3236 popnd.s = ldconst(popnd.real_); | |
| 3237 return(CONSTRUCT_FLAGS(0, _m, _normal, _80)); | |
| 3238 } | |
| 3239 } | |
| 3240 } | |
| 3241 | |
| 3242 asmerr(ASMERRMSGS.EM_bad_float_op); // unknown operand for floating point instruction | |
| 3243 return 0; | |
| 3244 } | |
| 3245 | |
| 3246 uint asm_type_size(Type ptype) | |
| 3247 { | |
| 3248 //if (ptype) printf("asm_type_size('%s') = %d\n", ptype.toChars(), (int)ptype.size()); | |
| 3249 uint u = _anysize; | |
| 3250 if (ptype && ptype.ty != TY.Tfunction /*&& ptype.isscalar()*/) | |
| 3251 { | |
| 3252 switch (cast(int)ptype.size()) | |
| 3253 { | |
| 3254 case 0: asmerr(ASMERRMSGS.EM_bad_op, "0 size"); break; | |
| 3255 case 1: u = _8; break; | |
| 3256 case 2: u = _16; break; | |
| 3257 case 4: u = _32; break; | |
| 3258 case 6: u = _48; break; | |
| 3259 default: | |
| 3260 break; /// | |
| 3261 } | |
| 3262 } | |
| 3263 return u; | |
| 3264 } | |
| 3265 | |
| 3266 bool asm_match_float_flags(opflag_t usOp, opflag_t usTable) | |
| 3267 { | |
| 3268 ASM_OPERAND_TYPE aoptyTable; | |
| 3269 ASM_OPERAND_TYPE aoptyOp; | |
| 3270 ASM_MODIFIERS amodTable; | |
| 3271 ASM_MODIFIERS amodOp; | |
| 3272 uint uRegmaskTable; | |
| 3273 uint uRegmaskOp; | |
| 3274 ubyte bRegmatch; | |
| 3275 | |
| 3276 | |
| 3277 // | |
| 3278 // Check #1, if the sizes do not match, NO match | |
| 3279 // | |
| 3280 uRegmaskOp = ASM_GET_uRegmask(usOp); | |
| 3281 uRegmaskTable = ASM_GET_uRegmask(usTable); | |
| 3282 bRegmatch = (uRegmaskTable & uRegmaskOp) != 0; | |
| 3283 | |
| 3284 if (!(ASM_GET_uSizemask(usTable) & ASM_GET_uSizemask(usOp) || bRegmatch)) | |
| 3285 return false; | |
| 3286 | |
| 3287 aoptyTable = ASM_GET_aopty(usTable); | |
| 3288 aoptyOp = ASM_GET_aopty(usOp); | |
| 3289 // | |
| 3290 // The operand types must match, otherwise return false. | |
| 3291 // There is one exception for the _rm which is a table entry which matches | |
| 3292 // _reg or _m | |
| 3293 // | |
| 3294 if (aoptyTable != aoptyOp) | |
| 3295 { | |
| 3296 if (aoptyOp != _float) | |
| 3297 return false; | |
| 3298 } | |
| 3299 | |
| 3300 // | |
| 3301 // Looks like a match so far, check to see if anything special is going on | |
| 3302 // | |
| 3303 amodOp = ASM_GET_amod(usOp); | |
| 3304 amodTable = ASM_GET_amod(usTable); | |
| 3305 switch (amodTable) | |
| 3306 { | |
| 3307 // Normal's match with normals | |
| 3308 case _normal: | |
| 3309 switch(amodOp) | |
| 3310 { | |
| 3311 case _normal: | |
| 3312 case _addr16: | |
| 3313 case _addr32: | |
| 3314 case _fn16: | |
| 3315 case _fn32: | |
| 3316 case _flbl: | |
| 3317 return true; | |
| 3318 | |
| 3319 default: | |
| 3320 return false; | |
| 3321 } | |
| 3322 | |
| 3323 case _rseg: | |
| 3324 case _rspecial: | |
| 3325 return false; | |
| 3326 default: | |
| 3327 assert(0); | |
| 3328 } | |
| 3329 } | |
| 3330 | |
| 3331 OPND* asm_log_and_exp() | |
| 3332 { | |
| 3333 OPND* o1 = asm_inc_or_exp(); | |
| 3334 OPND* o2; | |
| 3335 | |
| 3336 while (tok_value == TOKandand) | |
| 3337 { | |
| 3338 asm_token(); | |
| 3339 o2 = asm_inc_or_exp(); | |
| 3340 if (asm_isint(o1) && asm_isint(o2)) | |
| 3341 o1.disp = o1.disp && o2.disp; | |
| 3342 else { | |
| 3343 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3344 } | |
| 3345 o2.disp = 0; | |
| 3346 o1 = asm_merge_opnds(o1, o2); | |
| 3347 } | |
| 3348 return o1; | |
| 3349 } | |
| 3350 | |
| 3351 bool asm_isint(OPND *o) | |
| 3352 { | |
| 3353 if (!o || o.base || o.s) | |
| 3354 return false; | |
| 3355 | |
| 3356 //return o.disp != 0; | |
| 3357 return true; | |
| 3358 } | |
| 3359 | |
| 3360 /******************************* | |
| 3361 * Merge operands o1 and o2 into a single operand. | |
| 3362 */ | |
| 3363 | |
| 3364 OPND* asm_merge_opnds(OPND* o1, OPND* o2) | |
| 3365 { | |
| 3366 debug immutable(char)* psz; | |
| 3367 debug if (debuga) | |
| 3368 { | |
| 3369 printf("asm_merge_opnds(o1 = "); | |
| 3370 if (o1) asm_output_popnd(o1); | |
| 3371 printf(", o2 = "); | |
| 3372 if (o2) asm_output_popnd(o2); | |
| 3373 printf(")\n"); | |
| 3374 } | |
| 3375 | |
| 3376 if (!o1) | |
| 3377 return o2; | |
| 3378 if (!o2) | |
| 3379 return o1; | |
| 3380 version (EXTRA_DEBUG) { | |
| 3381 printf("Combining Operands: mult1 = %d, mult2 = %d", | |
| 3382 o1.uchMultiplier, o2.uchMultiplier); | |
| 3383 } | |
| 3384 /* combine the OPND's disp field */ | |
| 3385 if (o2.segreg) { | |
| 3386 if (o1.segreg) { | |
| 3387 debug psz = "o1.segment && o2.segreg".ptr; | |
| 3388 goto ILLEGAL_ADDRESS_ERROR; | |
| 3389 } | |
| 3390 else | |
| 3391 o1.segreg = o2.segreg; | |
| 3392 } | |
| 3393 | |
| 3394 // combine the OPND's symbol field | |
| 3395 if (o1.s && o2.s) | |
| 3396 { | |
| 3397 debug psz = "o1.s && os.s"; | |
| 3398 ILLEGAL_ADDRESS_ERROR: | |
| 3399 debug printf("Invalid addr because /%s/\n", psz); | |
| 3400 | |
| 3401 asmerr(EM_bad_addr_mode); // illegal addressing mode | |
| 3402 } | |
| 3403 else if (o2.s) | |
| 3404 o1.s = o2.s; | |
| 3405 else if (o1.s && o1.s.isTupleDeclaration()) | |
| 3406 { | |
| 3407 TupleDeclaration tup = o1.s.isTupleDeclaration(); | |
| 3408 | |
| 3409 size_t index = o2.disp; | |
| 3410 if (index >= tup.objects.dim) | |
| 3411 error(asmstate.loc, "tuple index %u exceeds %u", index, tup.objects.dim); | |
| 3412 else | |
| 3413 { | |
| 3414 Object o = cast(Object)tup.objects.data[index]; | |
| 3415 if (auto d = cast(Dsymbol)o) | |
| 3416 { | |
| 3417 o1.s = d; | |
| 3418 return o1; | |
| 3419 } | |
| 3420 else if (auto e = cast(Expression)o) | |
| 3421 { | |
| 3422 if (e.op == TOKvar) | |
| 3423 { | |
| 3424 o1.s = (cast(VarExp)e).var; | |
| 3425 return o1; | |
| 3426 } | |
| 3427 else if (e.op == TOKfunction) | |
| 3428 { | |
| 3429 o1.s = (cast(FuncExp)e).fd; | |
| 3430 return o1; | |
| 3431 } | |
| 3432 } | |
| 3433 error(asmstate.loc, "invalid asm operand %s", o1.s.toChars()); | |
| 3434 } | |
| 3435 } | |
| 3436 | |
| 3437 if (o1.disp && o2.disp) | |
| 3438 o1.disp += o2.disp; | |
| 3439 else if (o2.disp) | |
| 3440 o1.disp = o2.disp; | |
| 3441 | |
| 3442 /* combine the OPND's base field */ | |
| 3443 if (o1.base !is null && o2.base !is null) { | |
| 3444 debug psz = "o1.base != null && o2.base != null".ptr; | |
| 3445 goto ILLEGAL_ADDRESS_ERROR; | |
| 3446 } | |
| 3447 else if (o2.base) | |
| 3448 o1.base = o2.base; | |
| 3449 | |
| 3450 /* Combine the displacement register fields */ | |
| 3451 if (o2.pregDisp1) | |
| 3452 { | |
| 3453 if (o1.pregDisp2) | |
| 3454 { | |
| 3455 debug psz = "o2.pregDisp1 && o1.pregDisp2"; | |
| 3456 goto ILLEGAL_ADDRESS_ERROR; | |
| 3457 } | |
| 3458 else if (o1.pregDisp1) | |
| 3459 { | |
| 3460 if (o1.uchMultiplier || | |
| 3461 (o2.pregDisp1.val == _ESP && | |
| 3462 (o2.pregDisp1.ty & _r32) && | |
| 3463 !o2.uchMultiplier)) | |
| 3464 { | |
| 3465 o1.pregDisp2 = o1.pregDisp1; | |
| 3466 o1.pregDisp1 = o2.pregDisp1; | |
| 3467 } | |
| 3468 else | |
| 3469 o1.pregDisp2 = o2.pregDisp1; | |
| 3470 } | |
| 3471 else | |
| 3472 o1.pregDisp1 = o2.pregDisp1; | |
| 3473 } | |
| 3474 if (o2.pregDisp2) { | |
| 3475 if (o1.pregDisp2) { | |
| 3476 debug psz = "o1.pregDisp2 && o2.pregDisp2"; | |
| 3477 goto ILLEGAL_ADDRESS_ERROR; | |
| 3478 } | |
| 3479 else | |
| 3480 o1.pregDisp2 = o2.pregDisp2; | |
| 3481 } | |
| 3482 if (o2.uchMultiplier) | |
| 3483 { | |
| 3484 if (o1.uchMultiplier) | |
| 3485 { | |
| 3486 debug psz = "o1.uchMultiplier && o2.uchMultiplier"; | |
| 3487 goto ILLEGAL_ADDRESS_ERROR; | |
| 3488 } | |
| 3489 else | |
| 3490 o1.uchMultiplier = o2.uchMultiplier; | |
| 3491 } | |
| 3492 if (o2.ptype && !o1.ptype) | |
| 3493 o1.ptype = o2.ptype; | |
| 3494 if (o2.bOffset) | |
| 3495 o1.bOffset = o2.bOffset; | |
| 3496 if (o2.bSeg) | |
| 3497 o1.bSeg = o2.bSeg; | |
| 3498 | |
| 3499 if (o2.ajt && !o1.ajt) | |
| 3500 o1.ajt = o2.ajt; | |
| 3501 | |
| 3502 opnd_free(o2); | |
| 3503 version (EXTRA_DEBUG) { | |
| 3504 printf("Result = %d\n", o1.uchMultiplier); | |
| 3505 } | |
| 3506 debug if (debuga) | |
| 3507 { printf("Merged result = /"); | |
| 3508 asm_output_popnd(o1); | |
| 3509 printf("/\n"); | |
| 3510 } | |
| 3511 | |
| 3512 return o1; | |
| 3513 } | |
| 3514 | |
| 3515 opflag_t asm_float_type_size(Type ptype, opflag_t* pusFloat) | |
| 3516 { | |
| 3517 *pusFloat = 0; | |
| 3518 | |
| 3519 //printf("asm_float_type_size('%s')\n", ptype.toChars()); | |
| 3520 if (ptype && ptype.isscalar()) | |
| 3521 { | |
| 3522 int sz = cast(int)ptype.size(); | |
| 3523 if (sz == REALSIZE) | |
| 3524 { | |
| 3525 *pusFloat = _80; | |
| 3526 return 0; | |
| 3527 } | |
| 3528 switch (sz) | |
| 3529 { | |
| 3530 case 2: | |
| 3531 return _16; | |
| 3532 case 4: | |
| 3533 return _32; | |
| 3534 case 8: | |
| 3535 *pusFloat = _64; | |
| 3536 return 0; | |
| 3537 default: | |
| 3538 break; | |
| 3539 } | |
| 3540 } | |
| 3541 | |
| 3542 *pusFloat = _fanysize; | |
| 3543 return _anysize; | |
| 3544 } | |
| 3545 | |
| 3546 OPND* asm_inc_or_exp() | |
| 3547 { | |
| 3548 OPND* o1 = asm_xor_exp(); | |
| 3549 OPND* o2; | |
| 3550 | |
| 3551 while (tok_value == TOKor) | |
| 3552 { | |
| 3553 asm_token(); | |
| 3554 o2 = asm_xor_exp(); | |
| 3555 if (asm_isint(o1) && asm_isint(o2)) | |
| 3556 o1.disp |= o2.disp; | |
| 3557 else { | |
| 3558 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3559 } | |
| 3560 o2.disp = 0; | |
| 3561 o1 = asm_merge_opnds(o1, o2); | |
| 3562 } | |
| 3563 return o1; | |
| 3564 } | |
| 3565 | |
| 3566 OPND* asm_xor_exp() | |
| 3567 { | |
| 3568 OPND* o1 = asm_and_exp(); | |
| 3569 OPND* o2; | |
| 3570 | |
| 3571 while (tok_value == TOKxor) | |
| 3572 { | |
| 3573 asm_token(); | |
| 3574 o2 = asm_and_exp(); | |
| 3575 if (asm_isint(o1) && asm_isint(o2)) | |
| 3576 o1.disp ^= o2.disp; | |
| 3577 else { | |
| 3578 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3579 } | |
| 3580 o2.disp = 0; | |
| 3581 o1 = asm_merge_opnds(o1, o2); | |
| 3582 } | |
| 3583 return o1; | |
| 3584 } | |
| 3585 | |
| 3586 OPND* asm_and_exp() | |
| 3587 { | |
| 3588 OPND* o1 = asm_equal_exp(); | |
| 3589 OPND* o2; | |
| 3590 | |
| 3591 while (tok_value == TOKand) | |
| 3592 { | |
| 3593 asm_token(); | |
| 3594 o2 = asm_equal_exp(); | |
| 3595 if (asm_isint(o1) && asm_isint(o2)) | |
| 3596 o1.disp &= o2.disp; | |
| 3597 else { | |
| 3598 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3599 } | |
| 3600 o2.disp = 0; | |
| 3601 o1 = asm_merge_opnds(o1, o2); | |
| 3602 } | |
| 3603 return o1; | |
| 3604 } | |
| 3605 | |
| 3606 OPND* asm_equal_exp() | |
| 3607 { | |
| 3608 OPND* o1 = asm_rel_exp(); | |
| 3609 OPND* o2; | |
| 3610 | |
| 3611 while (1) | |
| 3612 { | |
| 3613 switch (tok_value) | |
| 3614 { | |
| 3615 case TOKequal: | |
| 3616 asm_token(); | |
| 3617 o2 = asm_rel_exp(); | |
| 3618 if (asm_isint(o1) && asm_isint(o2)) | |
| 3619 o1.disp = o1.disp == o2.disp; | |
| 3620 else { | |
| 3621 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3622 } | |
| 3623 o2.disp = 0; | |
| 3624 o1 = asm_merge_opnds(o1, o2); | |
| 3625 break; | |
| 3626 | |
| 3627 case TOKnotequal: | |
| 3628 asm_token(); | |
| 3629 o2 = asm_rel_exp(); | |
| 3630 if (asm_isint(o1) && asm_isint(o2)) | |
| 3631 o1.disp = o1.disp != o2.disp; | |
| 3632 else { | |
| 3633 asmerr(EM_bad_integral_operand); | |
| 3634 } | |
| 3635 o2.disp = 0; | |
| 3636 o1 = asm_merge_opnds(o1, o2); | |
| 3637 break; | |
| 3638 | |
| 3639 default: | |
| 3640 return o1; | |
| 3641 } | |
| 3642 } | |
| 3643 | |
| 3644 assert(false); | |
| 3645 } | |
| 3646 | |
| 3647 OPND* asm_rel_exp() | |
| 3648 { | |
| 3649 OPND* o1 = asm_shift_exp(); | |
| 3650 OPND* o2; | |
| 3651 | |
| 3652 TOK tok_save; | |
| 3653 | |
| 3654 while (1) | |
| 3655 { | |
| 3656 switch (tok_value) | |
| 3657 { | |
| 3658 case TOKgt: | |
| 3659 case TOKge: | |
| 3660 case TOKlt: | |
| 3661 case TOKle: | |
| 3662 tok_save = tok_value; | |
| 3663 asm_token(); | |
| 3664 o2 = asm_shift_exp(); | |
| 3665 if (asm_isint(o1) && asm_isint(o2)) | |
| 3666 { | |
| 3667 switch (tok_save) | |
| 3668 { | |
| 3669 case TOKgt: | |
| 3670 o1.disp = o1.disp > o2.disp; | |
| 3671 break; | |
| 3672 case TOKge: | |
| 3673 o1.disp = o1.disp >= o2.disp; | |
| 3674 break; | |
| 3675 case TOKlt: | |
| 3676 o1.disp = o1.disp < o2.disp; | |
| 3677 break; | |
| 3678 case TOKle: | |
| 3679 o1.disp = o1.disp <= o2.disp; | |
| 3680 break; | |
| 3681 } | |
| 3682 } | |
| 3683 else | |
| 3684 asmerr(EM_bad_integral_operand); | |
| 3685 o2.disp = 0; | |
| 3686 o1 = asm_merge_opnds(o1, o2); | |
| 3687 break; | |
| 3688 | |
| 3689 default: | |
| 3690 return o1; | |
| 3691 } | |
| 3692 } | |
| 3693 | |
| 3694 assert(false); | |
| 3695 } | |
| 3696 | |
| 3697 OPND* asm_shift_exp() | |
| 3698 { | |
| 3699 OPND* o1 = asm_add_exp(); | |
| 3700 OPND* o2; | |
| 3701 | |
| 3702 int op; | |
| 3703 TOK tk; | |
| 3704 | |
| 3705 while (tok_value == TOKshl || tok_value == TOKshr || tok_value == TOKushr) | |
| 3706 { | |
| 3707 tk = tok_value; | |
| 3708 asm_token(); | |
| 3709 o2 = asm_add_exp(); | |
| 3710 if (asm_isint(o1) && asm_isint(o2)) | |
| 3711 { if (tk == TOKshl) | |
| 3712 o1.disp <<= o2.disp; | |
| 3713 else if (tk == TOKushr) | |
| 3714 o1.disp = cast(uint)o1.disp >> o2.disp; | |
| 3715 else | |
| 3716 o1.disp >>= o2.disp; | |
| 3717 } | |
| 3718 else | |
| 3719 asmerr(EM_bad_integral_operand); | |
| 3720 o2.disp = 0; | |
| 3721 o1 = asm_merge_opnds(o1, o2); | |
| 3722 } | |
| 3723 return o1; | |
| 3724 } | |
| 3725 | |
| 3726 /******************************* | |
| 3727 */ | |
| 3728 | |
| 3729 OPND* asm_add_exp() | |
| 3730 { | |
| 3731 OPND* o1 = asm_mul_exp(); | |
| 3732 OPND* o2; | |
| 3733 | |
| 3734 while (1) | |
| 3735 { | |
| 3736 switch (tok_value) | |
| 3737 { | |
| 3738 case TOKadd: | |
| 3739 asm_token(); | |
| 3740 o2 = asm_mul_exp(); | |
| 3741 o1 = asm_merge_opnds(o1, o2); | |
| 3742 break; | |
| 3743 | |
| 3744 case TOKmin: | |
| 3745 asm_token(); | |
| 3746 o2 = asm_mul_exp(); | |
| 3747 if (asm_isint(o1) && asm_isint(o2)) | |
| 3748 { | |
| 3749 o1.disp -= o2.disp; | |
| 3750 o2.disp = 0; | |
| 3751 } | |
| 3752 else | |
| 3753 o2.disp = - o2.disp; | |
| 3754 o1 = asm_merge_opnds(o1, o2); | |
| 3755 break; | |
| 3756 | |
| 3757 default: | |
| 3758 return o1; | |
| 3759 } | |
| 3760 } | |
| 3761 | |
| 3762 assert(false); | |
| 3763 } | |
| 3764 | |
| 3765 /******************************* | |
| 3766 */ | |
| 3767 | |
| 3768 OPND* asm_mul_exp() | |
| 3769 { | |
| 3770 OPND* o1; | |
| 3771 OPND* o2; | |
| 3772 OPND* popndTmp; | |
| 3773 | |
| 3774 //printf("+asm_mul_exp()\n"); | |
| 3775 o1 = asm_br_exp(); | |
| 3776 while (1) | |
| 3777 { | |
| 3778 switch (tok_value) | |
| 3779 { | |
| 3780 case TOKmul: | |
| 3781 asm_token(); | |
| 3782 o2 = asm_br_exp(); | |
| 3783 version (EXTRA_DEBUG) { | |
| 3784 printf("Star o1.isint=%d, o2.isint=%d, lbra_seen=%d\n", | |
| 3785 asm_isint(o1), asm_isint(o2), asm_TKlbra_seen ); | |
| 3786 } | |
| 3787 if (asm_isNonZeroInt(o1) && asm_isNonZeroInt(o2)) | |
| 3788 o1.disp *= o2.disp; | |
| 3789 else if (asm_TKlbra_seen && o1.pregDisp1 && asm_isNonZeroInt(o2)) | |
| 3790 { | |
| 3791 o1.uchMultiplier = o2.disp; | |
| 3792 version (EXTRA_DEBUG) { | |
| 3793 printf("Multiplier: %d\n", o1.uchMultiplier); | |
| 3794 } | |
| 3795 } | |
| 3796 else if (asm_TKlbra_seen && o2.pregDisp1 && asm_isNonZeroInt(o1)) | |
| 3797 { | |
| 3798 popndTmp = o2; | |
| 3799 o2 = o1; | |
| 3800 o1 = popndTmp; | |
| 3801 o1.uchMultiplier = o2.disp; | |
| 3802 version (EXTRA_DEBUG) { | |
| 3803 printf("Multiplier: %d\n", | |
| 3804 o1.uchMultiplier); | |
| 3805 } | |
| 3806 } | |
| 3807 else if (asm_isint(o1) && asm_isint(o2)) | |
| 3808 o1.disp *= o2.disp; | |
| 3809 else | |
| 3810 asmerr(EM_bad_operand); | |
| 3811 o2.disp = 0; | |
| 3812 o1 = asm_merge_opnds(o1, o2); | |
| 3813 break; | |
| 3814 | |
| 3815 case TOKdiv: | |
| 3816 asm_token(); | |
| 3817 o2 = asm_br_exp(); | |
| 3818 if (asm_isint(o1) && asm_isint(o2)) | |
| 3819 o1.disp /= o2.disp; | |
| 3820 else | |
| 3821 asmerr(EM_bad_integral_operand); | |
| 3822 o2.disp = 0; | |
| 3823 o1 = asm_merge_opnds(o1, o2); | |
| 3824 break; | |
| 3825 | |
| 3826 case TOKmod: | |
| 3827 asm_token(); | |
| 3828 o2 = asm_br_exp(); | |
| 3829 if (asm_isint(o1) && asm_isint(o2)) | |
| 3830 o1.disp %= o2.disp; | |
| 3831 else | |
| 3832 asmerr(EM_bad_integral_operand); | |
| 3833 o2.disp = 0; | |
| 3834 o1 = asm_merge_opnds(o1, o2); | |
| 3835 break; | |
| 3836 | |
| 3837 default: | |
| 3838 return o1; | |
| 3839 } | |
| 3840 } | |
| 3841 | |
| 3842 return o1; | |
| 3843 } | |
| 3844 | |
| 3845 OPND* asm_br_exp() | |
| 3846 { | |
| 3847 //printf("asm_br_exp()\n"); | |
| 3848 | |
| 3849 OPND* o1 = asm_una_exp(); | |
| 3850 OPND* o2; | |
| 3851 Declaration s; | |
| 3852 | |
| 3853 while (1) | |
| 3854 { | |
| 3855 switch (tok_value) | |
| 3856 { | |
| 3857 case TOKlbracket: | |
| 3858 { | |
| 3859 version (EXTRA_DEBUG) { | |
| 3860 printf("Saw a left bracket\n"); | |
| 3861 } | |
| 3862 asm_token(); | |
| 3863 asm_TKlbra_seen++; | |
| 3864 o2 = asm_cond_exp(); | |
| 3865 asm_TKlbra_seen--; | |
| 3866 asm_chktok(TOKrbracket,EM_rbra); | |
| 3867 version (EXTRA_DEBUG) { | |
| 3868 printf("Saw a right bracket\n"); | |
| 3869 } | |
| 3870 o1 = asm_merge_opnds(o1, o2); | |
| 3871 if (tok_value == TOKidentifier) | |
| 3872 { o2 = asm_una_exp(); | |
| 3873 o1 = asm_merge_opnds(o1, o2); | |
| 3874 } | |
| 3875 break; | |
| 3876 } | |
| 3877 default: | |
| 3878 return o1; | |
| 3879 } | |
| 3880 } | |
| 3881 | |
| 3882 assert(false); | |
| 3883 } | |
| 3884 | |
| 3885 /******************************* | |
| 3886 */ | |
| 3887 | |
| 3888 OPND* asm_una_exp() | |
| 3889 { | |
| 3890 OPND* o1; | |
| 3891 int op; | |
| 3892 Type ptype; | |
| 3893 Type ptypeSpec; | |
| 3894 ASM_JUMPTYPE ajt = ASM_JUMPTYPE_UNSPECIFIED; | |
| 3895 char bPtr = 0; | |
| 3896 | |
| 3897 switch (cast(int)tok_value) | |
| 3898 { | |
| 3899 static if (false) { | |
| 3900 case TOKand: | |
| 3901 asm_token(); | |
| 3902 o1 = asm_una_exp(); | |
| 3903 break; | |
| 3904 | |
| 3905 case TOKmul: | |
| 3906 asm_token(); | |
| 3907 o1 = asm_una_exp(); | |
| 3908 ++o1.indirect; | |
| 3909 break; | |
| 3910 } | |
| 3911 case TOKadd: | |
| 3912 asm_token(); | |
| 3913 o1 = asm_una_exp(); | |
| 3914 break; | |
| 3915 | |
| 3916 case TOKmin: | |
| 3917 asm_token(); | |
| 3918 o1 = asm_una_exp(); | |
| 3919 if (asm_isint(o1)) | |
| 3920 o1.disp = -o1.disp; | |
| 3921 break; | |
| 3922 | |
| 3923 case TOKnot: | |
| 3924 asm_token(); | |
| 3925 o1 = asm_una_exp(); | |
| 3926 if (asm_isint(o1)) | |
| 3927 o1.disp = !o1.disp; | |
| 3928 break; | |
| 3929 | |
| 3930 case TOKtilde: | |
| 3931 asm_token(); | |
| 3932 o1 = asm_una_exp(); | |
| 3933 if (asm_isint(o1)) | |
| 3934 o1.disp = ~o1.disp; | |
| 3935 break; | |
| 3936 | |
| 3937 static if (false) { | |
| 3938 case TOKlparen: | |
| 3939 // stoken() is called directly here because we really | |
| 3940 // want the INT token to be an INT. | |
| 3941 stoken(); | |
| 3942 if (type_specifier(&ptypeSpec)) /* if type_name */ | |
| 3943 { | |
| 3944 ptype = declar_abstract(ptypeSpec); | |
| 3945 /* read abstract_declarator */ | |
| 3946 fixdeclar(ptype);/* fix declarator */ | |
| 3947 type_free(ptypeSpec);/* the declar() function | |
| 3948 allocates the typespec again */ | |
| 3949 chktok(TOKrparen,EM_rpar); | |
| 3950 ptype.Tcount--; | |
| 3951 goto CAST_REF; | |
| 3952 } | |
| 3953 else | |
| 3954 { | |
| 3955 type_free(ptypeSpec); | |
| 3956 o1 = asm_cond_exp(); | |
| 3957 chktok(TOKrparen, EM_rpar); | |
| 3958 } | |
| 3959 break; | |
| 3960 } | |
| 3961 | |
| 3962 case TOKidentifier: | |
| 3963 // Check for offset keyword | |
| 3964 if (asmtok.ident == Id.offset) | |
| 3965 { | |
| 3966 if (!global.params.useDeprecated) | |
| 3967 error(asmstate.loc, "offset deprecated, use offsetof"); | |
| 3968 goto Loffset; | |
| 3969 } | |
| 3970 if (asmtok.ident == Id.offsetof) | |
| 3971 { | |
| 3972 Loffset: | |
| 3973 asm_token(); | |
| 3974 o1 = asm_cond_exp(); | |
| 3975 if (!o1) | |
| 3976 o1 = opnd_calloc(); | |
| 3977 o1.bOffset= true; | |
| 3978 } | |
| 3979 else | |
| 3980 o1 = asm_primary_exp(); | |
| 3981 break; | |
| 3982 | |
| 3983 case ASMTK.ASMTKseg: | |
| 3984 asm_token(); | |
| 3985 o1 = asm_cond_exp(); | |
| 3986 if (!o1) | |
| 3987 o1 = opnd_calloc(); | |
| 3988 o1.bSeg= true; | |
| 3989 break; | |
| 3990 | |
| 3991 case TOKint16: | |
| 3992 if (asmstate.ucItype != ITjump) | |
| 3993 { | |
| 3994 ptype = Type.tint16; | |
| 3995 goto TYPE_REF; | |
| 3996 } | |
| 3997 ajt = ASM_JUMPTYPE_SHORT; | |
| 3998 asm_token(); | |
| 3999 goto JUMP_REF2; | |
| 4000 | |
| 4001 case ASMTKnear: | |
| 4002 ajt = ASM_JUMPTYPE_NEAR; | |
| 4003 goto JUMP_REF; | |
| 4004 | |
| 4005 case ASMTKfar: | |
| 4006 ajt = ASM_JUMPTYPE_FAR; | |
| 4007 JUMP_REF: | |
| 4008 asm_token(); | |
| 4009 asm_chktok(cast(TOK) ASMTKptr, EM_ptr_exp); | |
| 4010 JUMP_REF2: | |
| 4011 o1 = asm_cond_exp(); | |
| 4012 if (!o1) | |
| 4013 o1 = opnd_calloc(); | |
| 4014 o1.ajt= ajt; | |
| 4015 break; | |
| 4016 | |
| 4017 case TOKint8: | |
| 4018 ptype = Type.tint8; | |
| 4019 goto TYPE_REF; | |
| 4020 case TOKint32: | |
| 4021 case ASMTKdword: | |
| 4022 ptype = Type.tint32; | |
| 4023 goto TYPE_REF; | |
| 4024 case TOKfloat32: | |
| 4025 ptype = Type.tfloat32; | |
| 4026 goto TYPE_REF; | |
| 4027 case ASMTKqword: | |
| 4028 case TOKfloat64: | |
| 4029 ptype = Type.tfloat64; | |
| 4030 goto TYPE_REF; | |
| 4031 case TOKfloat80: | |
| 4032 ptype = Type.tfloat80; | |
| 4033 goto TYPE_REF; | |
| 4034 case ASMTKword: | |
| 4035 ptype = Type.tint16; | |
| 4036 TYPE_REF: | |
| 4037 bPtr = 1; | |
| 4038 asm_token(); | |
| 4039 asm_chktok(cast(TOK) ASMTKptr, EM_ptr_exp); | |
| 4040 CAST_REF: | |
| 4041 o1 = asm_cond_exp(); | |
| 4042 if (!o1) | |
| 4043 o1 = opnd_calloc(); | |
| 4044 o1.ptype = ptype; | |
| 4045 o1.bPtr = bPtr; | |
| 4046 break; | |
| 4047 | |
| 4048 default: | |
| 4049 o1 = asm_primary_exp(); | |
| 4050 break; | |
| 4051 } | |
| 4052 return o1; | |
| 4053 } | |
| 4054 | |
| 4055 bool asm_isNonZeroInt(OPND* o) | |
| 4056 { | |
| 4057 if (!o || o.base || o.s) | |
| 4058 return false; | |
| 4059 | |
| 4060 return o.disp != 0; | |
| 4061 } | |
| 4062 | |
| 4063 OPND* asm_primary_exp() | |
| 4064 { | |
| 4065 OPND* o1 = null; | |
| 4066 OPND* o2 = null; | |
| 4067 Type ptype; | |
| 4068 Dsymbol s; | |
| 4069 Dsymbol scopesym; | |
| 4070 | |
| 4071 TOK tkOld; | |
| 4072 int global; | |
| 4073 REG* regp; | |
| 4074 | |
| 4075 global = 0; | |
| 4076 switch (cast(int)tok_value) | |
| 4077 { | |
| 4078 case TOKdollar: | |
| 4079 o1 = opnd_calloc(); | |
| 4080 o1.s = asmstate.psDollar; | |
| 4081 asm_token(); | |
| 4082 break; | |
| 4083 | |
| 4084 static if (false) { | |
| 4085 case TOKthis: | |
| 4086 strcpy(tok.TKid,cpp_name_this); | |
| 4087 } | |
| 4088 case TOKidentifier: | |
| 4089 case_ident: | |
| 4090 o1 = opnd_calloc(); | |
| 4091 regp = asm_reg_lookup(asmtok.ident.toChars()); | |
| 4092 if (regp !is null) | |
| 4093 { | |
| 4094 asm_token(); | |
| 4095 // see if it is segment override (like SS:) | |
| 4096 if (!asm_TKlbra_seen && | |
| 4097 (regp.ty & _seg) && | |
| 4098 tok_value == TOKcolon) | |
| 4099 { | |
| 4100 o1.segreg = regp; | |
| 4101 asm_token(); | |
| 4102 o2 = asm_cond_exp(); | |
| 4103 o1 = asm_merge_opnds(o1, o2); | |
| 4104 } | |
| 4105 else if (asm_TKlbra_seen) | |
| 4106 { // should be a register | |
| 4107 if (o1.pregDisp1) | |
| 4108 asmerr(EM_bad_operand); | |
| 4109 else | |
| 4110 o1.pregDisp1 = regp; | |
| 4111 } | |
| 4112 else | |
| 4113 { if (o1.base == null) | |
| 4114 o1.base = regp; | |
| 4115 else | |
| 4116 asmerr(EM_bad_operand); | |
| 4117 } | |
| 4118 break; | |
| 4119 } | |
| 4120 // If floating point instruction and id is a floating register | |
| 4121 else if (asmstate.ucItype == ITfloat && | |
| 4122 asm_is_fpreg(asmtok.ident.toChars())) | |
| 4123 { | |
| 4124 asm_token(); | |
| 4125 if (tok_value == TOKlparen) | |
| 4126 { | |
| 4127 uint n; | |
| 4128 | |
| 4129 asm_token(); | |
| 4130 asm_chktok(TOKint32v, EM_num); | |
| 4131 n = cast(uint)asmtok.uns64value; | |
| 4132 if (n > 7) | |
| 4133 asmerr(EM_bad_operand); | |
| 4134 o1.base = &(aregFp[n]); | |
| 4135 asm_chktok(TOKrparen, EM_rpar); | |
| 4136 } | |
| 4137 else | |
| 4138 o1.base = ®Fp; | |
| 4139 } | |
| 4140 else | |
| 4141 { | |
| 4142 if (asmstate.ucItype == ITjump) | |
| 4143 { | |
| 4144 s = null; | |
| 4145 if (asmstate.sc.func.labtab) | |
| 4146 s = asmstate.sc.func.labtab.lookup(asmtok.ident); | |
| 4147 if (!s) | |
| 4148 s = asmstate.sc.search(Loc(0), asmtok.ident, &scopesym); | |
| 4149 if (!s) | |
| 4150 { // Assume it is a label, and define that label | |
| 4151 s = asmstate.sc.func.searchLabel(asmtok.ident); | |
| 4152 } | |
| 4153 } | |
| 4154 else | |
| 4155 s = asmstate.sc.search(Loc(0), asmtok.ident, &scopesym); | |
| 4156 | |
| 4157 if (!s) | |
| 4158 asmerr(EM_undefined, asmtok.toChars()); | |
| 4159 | |
| 4160 Identifier id = asmtok.ident; | |
| 4161 asm_token(); | |
| 4162 if (tok_value == TOKdot) | |
| 4163 { | |
| 4164 Expression e; | |
| 4165 VarExp v; | |
| 4166 | |
| 4167 e = new IdentifierExp(asmstate.loc, id); | |
| 4168 while (1) | |
| 4169 { | |
| 4170 asm_token(); | |
| 4171 if (tok_value == TOKidentifier) | |
| 4172 { | |
| 4173 e = new DotIdExp(asmstate.loc, e, asmtok.ident); | |
| 4174 asm_token(); | |
| 4175 if (tok_value != TOKdot) | |
| 4176 break; | |
| 4177 } | |
| 4178 else | |
| 4179 { | |
| 4180 asmerr(EM_ident_exp); | |
| 4181 break; | |
| 4182 } | |
| 4183 } | |
| 4184 e = e.semantic(asmstate.sc); | |
| 4185 e = e.optimize(WANTvalue | WANTinterpret); | |
| 4186 if (e.isConst()) | |
| 4187 { | |
| 4188 if (e.type.isintegral()) | |
| 4189 { | |
| 4190 o1.disp = cast(int)e.toInteger(); | |
| 4191 goto Lpost; | |
| 4192 } | |
| 4193 else if (e.type.isreal()) | |
| 4194 { | |
| 4195 o1.real_ = e.toReal(); | |
| 4196 o1.ptype = e.type; | |
| 4197 goto Lpost; | |
| 4198 } | |
| 4199 else | |
| 4200 { | |
| 4201 asmerr(EM_bad_op, e.toChars()); | |
| 4202 } | |
| 4203 } | |
| 4204 else if (e.op == TOKvar) | |
| 4205 { | |
| 4206 v = cast(VarExp)e; | |
| 4207 s = v.var; | |
| 4208 } | |
| 4209 else | |
| 4210 { | |
| 4211 asmerr(EM_bad_op, e.toChars()); | |
| 4212 } | |
| 4213 } | |
| 4214 | |
| 4215 asm_merge_symbol(o1,s); | |
| 4216 | |
| 4217 /* This attempts to answer the question: is | |
| 4218 * char[8] foo; | |
| 4219 * of size 1 or size 8? Presume it is 8 if foo | |
| 4220 * is the last token of the operand. | |
| 4221 */ | |
| 4222 if (o1.ptype && tok_value != TOKcomma && tok_value != TOKeof) | |
| 4223 { | |
| 4224 for (; | |
| 4225 o1.ptype.ty == Tsarray; | |
| 4226 o1.ptype = o1.ptype.nextOf()) | |
| 4227 { | |
| 4228 ; | |
| 4229 } | |
| 4230 } | |
| 4231 | |
| 4232 Lpost: | |
| 4233 static if (false) { | |
| 4234 // for [] | |
| 4235 if (tok_value == TOKlbracket) | |
| 4236 o1 = asm_prim_post(o1); | |
| 4237 } | |
| 4238 goto Lret; | |
| 4239 } | |
| 4240 break; | |
| 4241 | |
| 4242 case TOKint32v: | |
| 4243 case TOKuns32v: | |
| 4244 o1 = opnd_calloc(); | |
| 4245 o1.disp = asmtok.int32value; | |
| 4246 asm_token(); | |
| 4247 break; | |
| 4248 | |
| 4249 case TOKfloat32v: | |
| 4250 o1 = opnd_calloc(); | |
| 4251 o1.real_ = asmtok.float80value; | |
| 4252 o1.ptype = Type.tfloat32; | |
| 4253 asm_token(); | |
| 4254 break; | |
| 4255 | |
| 4256 case TOKfloat64v: | |
| 4257 o1 = opnd_calloc(); | |
| 4258 o1.real_ = asmtok.float80value; | |
| 4259 o1.ptype = Type.tfloat64; | |
| 4260 asm_token(); | |
| 4261 break; | |
| 4262 | |
| 4263 case TOKfloat80v: | |
| 4264 o1 = opnd_calloc(); | |
| 4265 o1.real_ = asmtok.float80value; | |
| 4266 o1.ptype = Type.tfloat80; | |
| 4267 asm_token(); | |
| 4268 break; | |
| 4269 | |
| 4270 case ASMTKlocalsize: | |
| 4271 o1 = opnd_calloc(); | |
| 4272 o1.s = asmstate.psLocalsize; | |
| 4273 o1.ptype = Type.tint32; | |
| 4274 asm_token(); | |
| 4275 break; | |
| 4276 | |
| 4277 default: | |
| 4278 break; /// | |
| 4279 } | |
| 4280 Lret: | |
| 4281 return o1; | |
| 4282 } | |
| 4283 | |
| 4284 void asm_merge_symbol(OPND* o1, Dsymbol s) | |
| 4285 { | |
| 4286 Type ptype; | |
| 4287 VarDeclaration v; | |
| 4288 EnumMember em; | |
| 4289 | |
| 4290 //printf("asm_merge_symbol(s = %s %s)\n", s.kind(), s.toChars()); | |
| 4291 s = s.toAlias(); | |
| 4292 //printf("s = %s %s\n", s.kind(), s.toChars()); | |
| 4293 if (s.isLabel()) | |
| 4294 { | |
| 4295 o1.s = s; | |
| 4296 return; | |
| 4297 } | |
| 4298 | |
| 4299 v = s.isVarDeclaration(); | |
| 4300 if (v) | |
| 4301 { | |
| 4302 if (v.isParameter()) | |
| 4303 asmstate.statement.refparam = true; | |
| 4304 | |
| 4305 v.checkNestedReference(asmstate.sc, asmstate.loc); | |
| 4306 static if (false) { | |
| 4307 if (!v.isDataseg() && v.parent != asmstate.sc.parent && v.parent) | |
| 4308 { | |
| 4309 asmerr(EM_uplevel, v.toChars()); | |
| 4310 } | |
| 4311 } | |
| 4312 if (v.storage_class & STCfield) | |
| 4313 { | |
| 4314 o1.disp += v.offset; | |
| 4315 goto L2; | |
| 4316 } | |
| 4317 if ((v.isConst() | |
| 4318 ///version (DMDV2) { | |
| 4319 || v.isInvariant() || v.storage_class & STCmanifest | |
| 4320 ///} | |
| 4321 ) && !v.type.isfloating() && v.init) | |
| 4322 { | |
| 4323 ExpInitializer ei = v.init.isExpInitializer(); | |
| 4324 | |
| 4325 if (ei) | |
| 4326 { | |
| 4327 o1.disp = cast(int)ei.exp.toInteger(); | |
| 4328 return; | |
| 4329 } | |
| 4330 } | |
| 4331 } | |
| 4332 em = s.isEnumMember(); | |
| 4333 if (em) | |
| 4334 { | |
| 4335 o1.disp = cast(int)em.value.toInteger(); | |
| 4336 return; | |
| 4337 } | |
| 4338 o1.s = s; // a C identifier | |
| 4339 L2: | |
| 4340 Declaration d = s.isDeclaration(); | |
| 4341 if (!d) | |
| 4342 { | |
| 4343 asmerr("%s %s is not a declaration", s.kind(), s.toChars()); | |
| 4344 } | |
| 4345 else if (d.getType()) | |
| 4346 asmerr(EM_type_as_operand, d.getType().toChars()); | |
| 4347 else if (d.isTupleDeclaration()) { | |
| 4348 ; | |
| 4349 } else | |
| 4350 o1.ptype = d.type.toBasetype(); | |
| 4351 } | |
| 4352 | |
| 4353 REG[63] regtab = | |
| 4354 [ | |
| 4355 {"AL", _AL, _r8 | _al,}, | |
| 4356 {"AH", _AH, _r8,}, | |
| 4357 {"AX", _AX, _r16 | _ax,}, | |
| 4358 {"EAX", _EAX, _r32 | _eax,}, | |
| 4359 {"BL", _BL, _r8,}, | |
| 4360 {"BH", _BH, _r8,}, | |
| 4361 {"BX", _BX, _r16,}, | |
| 4362 {"EBX", _EBX, _r32,}, | |
| 4363 {"CL", _CL, _r8 | _cl,}, | |
| 4364 {"CH", _CH, _r8,}, | |
| 4365 {"CX", _CX, _r16,}, | |
| 4366 {"ECX", _ECX, _r32,}, | |
| 4367 {"DL", _DL, _r8,}, | |
| 4368 {"DH", _DH, _r8,}, | |
| 4369 {"DX", _DX, _r16 | _dx,}, | |
| 4370 {"EDX", _EDX, _r32,}, | |
| 4371 {"BP", _BP, _r16,}, | |
| 4372 {"EBP", _EBP, _r32,}, | |
| 4373 {"SP", _SP, _r16,}, | |
| 4374 {"ESP", _ESP, _r32,}, | |
| 4375 {"DI", _DI, _r16,}, | |
| 4376 {"EDI", _EDI, _r32,}, | |
| 4377 {"SI", _SI, _r16,}, | |
| 4378 {"ESI", _ESI, _r32,}, | |
| 4379 {"ES", _ES, _seg | _es,}, | |
| 4380 {"CS", _CS, _seg | _cs,}, | |
| 4381 {"SS", _SS, _seg | _ss,}, | |
| 4382 {"DS", _DS, _seg | _ds,}, | |
| 4383 {"GS", _GS, _seg | _gs,}, | |
| 4384 {"FS", _FS, _seg | _fs,}, | |
| 4385 {"CR0", 0, _special | _crn,}, | |
| 4386 {"CR2", 2, _special | _crn,}, | |
| 4387 {"CR3", 3, _special | _crn,}, | |
| 4388 {"CR4", 4, _special | _crn,}, | |
| 4389 {"DR0", 0, _special | _drn,}, | |
| 4390 {"DR1", 1, _special | _drn,}, | |
| 4391 {"DR2", 2, _special | _drn,}, | |
| 4392 {"DR3", 3, _special | _drn,}, | |
| 4393 {"DR4", 4, _special | _drn,}, | |
| 4394 {"DR5", 5, _special | _drn,}, | |
| 4395 {"DR6", 6, _special | _drn,}, | |
| 4396 {"DR7", 7, _special | _drn,}, | |
| 4397 {"TR3", 3, _special | _trn,}, | |
| 4398 {"TR4", 4, _special | _trn,}, | |
| 4399 {"TR5", 5, _special | _trn,}, | |
| 4400 {"TR6", 6, _special | _trn,}, | |
| 4401 {"TR7", 7, _special | _trn,}, | |
| 4402 {"MM0", 0, _mm,}, | |
| 4403 {"MM1", 1, _mm,}, | |
| 4404 {"MM2", 2, _mm,}, | |
| 4405 {"MM3", 3, _mm,}, | |
| 4406 {"MM4", 4, _mm,}, | |
| 4407 {"MM5", 5, _mm,}, | |
| 4408 {"MM6", 6, _mm,}, | |
| 4409 {"MM7", 7, _mm,}, | |
| 4410 {"XMM0", 0, _xmm,}, | |
| 4411 {"XMM1", 1, _xmm,}, | |
| 4412 {"XMM2", 2, _xmm,}, | |
| 4413 {"XMM3", 3, _xmm,}, | |
| 4414 {"XMM4", 4, _xmm,}, | |
| 4415 {"XMM5", 5, _xmm,}, | |
| 4416 {"XMM6", 6, _xmm,}, | |
| 4417 {"XMM7", 7, _xmm,}, | |
| 4418 ]; | |
| 4419 | |
| 4420 REG* asm_reg_lookup(string s) | |
| 4421 { | |
| 4422 //dbg_printf("asm_reg_lookup('%s')\n",s); | |
| 4423 | |
| 4424 for (int i = 0; i < regtab.length; i++) | |
| 4425 { | |
| 4426 if (regtab[i].regstr[0..min(s.length, $)] == s) | |
| 4427 { | |
| 4428 return ®tab[i]; | |
| 4429 } | |
| 4430 } | |
| 4431 | |
| 4432 return null; | |
| 4433 } | |
| 4434 | |
| 4435 int asm_is_fpreg(string szReg) | |
| 4436 { | |
| 4437 static if (true) { | |
| 4438 return(szReg.length == 2 && szReg[0] == 'S' && | |
| 4439 szReg[1] == 'T'); | |
| 4440 } else { | |
| 4441 return(szReg.length == 2 && (szReg[0] == 's' || szReg[0] == 'S') && | |
| 4442 (szReg[1] == 't' || szReg[1] == 'T')); | |
| 4443 } | |
|
14
2cc604139636
Implemented Linux support for ddmd. Some parts are a bit hacky to just "get it working", that said, druntime and phobos compile, and unittests pass.
Robert Clipsham <robert@octarineparrot.com>
parents:
5
diff
changeset
|
4444 } |