Mercurial > projects > ddmd
annotate dmd/backend/iasm.d @ 114:e28b18c23469
added a module dmd.common for commonly used stuff
it currently holds code for consistency checking of predefined versions
also added a VisualD project file
| author | Trass3r |
|---|---|
| date | Wed, 01 Sep 2010 18:21:58 +0200 |
| parents | 3482c73a991b |
| children | af1bebfd96a4 |
| rev | line source |
|---|---|
| 0 | 1 module dmd.backend.iasm; |
| 2 | |
| 114 | 3 import dmd.common; |
| 0 | 4 import dmd.Dsymbol; |
| 5 import dmd.LabelDsymbol; | |
| 6 import dmd.AsmStatement; | |
| 7 import dmd.Type; | |
| 8 import dmd.Scope; | |
| 9 import dmd.Loc; | |
| 10 import dmd.Token; | |
| 11 import dmd.TOK; | |
| 12 import dmd.Identifier; | |
| 13 import dmd.Declaration; | |
| 14 import dmd.VarDeclaration; | |
| 15 import dmd.EnumMember; | |
| 16 import dmd.ExpInitializer; | |
| 17 import dmd.Expression; | |
| 18 import dmd.IdentifierExp; | |
| 19 import dmd.StringExp; | |
| 20 import dmd.Global; | |
| 21 import dmd.WANT; | |
| 22 import dmd.STC; | |
| 23 import dmd.TY; | |
| 24 import dmd.EnumUtils; | |
| 25 import dmd.TupleDeclaration; | |
| 26 import dmd.VarExp; | |
| 27 import dmd.Id; | |
| 28 import dmd.FuncExp; | |
| 29 import dmd.DotIdExp; | |
| 30 | |
| 31 import dmd.backend.code; | |
| 32 import dmd.backend.Srcpos; | |
| 33 import dmd.backend.FL; | |
| 34 import dmd.backend.Util; | |
| 35 import dmd.backend.regm_t; | |
| 36 import dmd.backend.Config; | |
| 37 import dmd.backend.targ_types; | |
| 38 import dmd.backend.elem; | |
| 39 import dmd.Util; | |
| 40 | |
| 41 import std.stdio : writef, writefln; | |
| 42 import std.string : toStringz; | |
| 43 import std.algorithm : min; | |
| 44 | |
| 4 | 45 import core.memory; |
| 46 | |
| 47 import core.stdc.stdio : printf; | |
| 0 | 48 import core.stdc.string : strlen; |
|
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
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changeset
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49 import core.stdc.stdlib : realloc; |
| 0 | 50 import core.stdc.limits; |
| 51 | |
| 52 import std.bitmanip; | |
| 53 | |
| 54 alias int[10] jmp_buf; | |
| 55 | |
| 56 extern (C) extern | |
| 57 { | |
|
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c369e9924151
Updated setjmp/longjmp prototypes to reflect recent static arrays change (they are now passed by value by default).
korDen
parents:
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diff
changeset
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58 int setjmp(ref jmp_buf env); |
|
c369e9924151
Updated setjmp/longjmp prototypes to reflect recent static arrays change (they are now passed by value by default).
korDen
parents:
25
diff
changeset
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59 void longjmp(ref jmp_buf env, int value); |
| 0 | 60 |
| 61 void cod3_set386(); | |
| 62 code* genlinnum(code*, Srcpos); | |
| 63 code *code_calloc(); | |
| 64 | |
| 65 __gshared int BPRM; | |
| 66 } | |
| 67 | |
| 68 const(char)*[ASMTK.ASMTKmax] apszAsmtk = [ | |
| 69 "__LOCAL_SIZE", | |
| 70 "dword".ptr, | |
| 71 "even".ptr, | |
| 72 "far".ptr, | |
| 73 "naked".ptr, | |
| 74 "near".ptr, | |
| 75 "ptr".ptr, | |
| 76 "qword".ptr, | |
| 77 "seg".ptr, | |
| 78 "word".ptr, | |
| 79 ]; | |
| 80 | |
| 25 | 81 version (Windows) { |
| 82 extern (Pascal) code * cat(code *c1,code *c2); | |
| 83 } else { | |
| 84 extern (C) code * cat(code *c1,code *c2); | |
| 85 } | |
|
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
|
86 |
|
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 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
|
88 { |
|
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 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
|
90 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
|
91 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
|
92 int binary(const(char)* p , const(char)** tab, int high) { return _Z6binaryPKcPS0_i(p, tab, high); } |
| 0 | 93 } |
|
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
|
94 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
|
95 { |
| 25 | 96 extern (C++) { |
| 97 OP* asm_op_lookup(const(char)* s); | |
| 98 int binary(const(char)* p , const(char)** tab, int high); | |
| 99 } | |
|
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
|
100 } |
|
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
|
101 |
|
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
|
102 extern (C++) //extern |
| 0 | 103 { |
| 104 void init_optab(); | |
| 105 const(char)* asm_opstr(OP* pop); | |
| 106 } | |
| 107 | |
| 108 static ubyte asm_TKlbra_seen = false; | |
| 109 | |
| 110 struct REG | |
| 111 { | |
| 54 | 112 string regstr; |
| 0 | 113 ubyte val; |
| 114 opflag_t ty; | |
| 115 } | |
| 116 | |
| 117 OP* asm_op_lookup(string s) | |
| 118 { | |
| 119 return asm_op_lookup(toStringz(s)); | |
| 120 } | |
| 121 | |
| 122 // For amod (3 bits) | |
| 123 enum ASM_MODIFIERS : ubyte | |
| 124 { | |
| 125 _normal, // Normal register value | |
| 126 _rseg, // Segment registers | |
| 127 _rspecial, // Special registers | |
| 128 _addr16, // 16 bit address | |
| 129 _addr32, // 32 bit address | |
| 130 _fn16, // 16 bit function call | |
| 131 _fn32, // 32 bit function call | |
| 132 _flbl // Label | |
| 133 } | |
| 134 | |
| 135 mixin(BringToCurrentScope!(ASM_MODIFIERS)); | |
| 136 | |
| 137 // For aopty (3 bits) | |
| 138 enum ASM_OPERAND_TYPE : ubyte | |
| 139 { | |
| 140 _reg, // _r8, _r16, _r32 | |
| 141 _m, // _m8, _m16, _m32, _m48 | |
| 142 _imm, // _imm8, _imm16, _imm32 | |
| 143 _rel, // _rel8, _rel16, _rel32 | |
| 144 _mnoi, // _m1616, _m1632 | |
| 145 _p, // _p1616, _p1632 | |
| 146 _rm, // _rm8, _rm16, _rm32 | |
| 147 _float // Floating point operand, look at cRegmask for the | |
| 148 // actual size | |
| 149 } | |
| 150 | |
| 151 mixin(BringToCurrentScope!(ASM_OPERAND_TYPE)); | |
| 152 | |
| 153 /* Register definitions */ | |
| 154 | |
| 155 enum AX = 0; | |
| 156 enum CX = 1; | |
| 157 enum DX = 2; | |
| 158 enum BX = 3; | |
| 159 enum SP = 4; | |
| 160 enum BP = 5; | |
| 161 enum SI = 6; | |
| 162 enum DI = 7; | |
| 163 | |
| 164 enum ES = 9; | |
| 165 enum PSW = 10; | |
| 166 enum STACK = 11; // top of stack | |
| 167 enum MEM = 12; // memory | |
| 168 enum OTHER = 13; // other things | |
| 169 enum ST0 = 14; // 8087 top of stack register | |
| 170 enum ST01 = 15; // top two 8087 registers; for complex types | |
| 171 | |
| 172 enum NOREG = 100; // no register | |
| 173 | |
| 174 enum AL = 0; | |
| 175 enum CL = 1; | |
| 176 enum DL = 2; | |
| 177 enum BL = 3; | |
| 178 enum AH = 4; | |
| 179 enum CH = 5; | |
| 180 enum DH = 6; | |
| 181 enum BH = 7; | |
| 182 | |
| 183 enum mAX = 1; | |
| 184 enum mCX = 2; | |
| 185 enum mDX = 4; | |
| 186 enum mBX = 8; | |
| 187 enum mSP = 0x10; | |
| 188 enum mBP = 0x20; | |
| 189 enum mSI = 0x40; | |
| 190 enum mDI = 0x80; | |
| 191 enum mES = (1 << ES); // 0x200 | |
| 192 enum mPSW = (1 << PSW); // 0x400 | |
| 193 | |
| 194 enum mSTACK = (1 << STACK); // 0x800 | |
| 195 enum mMEM = (1 << MEM); // 0x1000 | |
| 196 enum mOTHER = (1 << OTHER); // 0x2000 | |
| 197 | |
| 198 enum mST0 = (1 << ST0); // 0x4000 | |
| 199 enum mST01 = (1 << ST01); // 0x8000 | |
| 200 | |
|
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fd4acc376c45
Implemented object file output and linking on linux.
Robert Clipsham <robert@octarineparrot.com>
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201 version (POSIX) { ///TARGET_LINUX || TARGET_OSX || TARGET_FREEBSD || TARGET_SOLARIS |
| 0 | 202 // To support positional independent code, |
| 203 // must be able to remove BX from available registers | |
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Implemented object file output and linking on linux.
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204 extern (C) extern __gshared regm_t ALLREGS; |
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fd4acc376c45
Implemented object file output and linking on linux.
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205 enum ALLREGS_INIT = (mAX|mBX|mCX|mDX|mSI|mDI); |
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fd4acc376c45
Implemented object file output and linking on linux.
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206 enum ALLREGS_INIT_PIC = (mAX|mCX|mDX|mSI|mDI); |
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fd4acc376c45
Implemented object file output and linking on linux.
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207 extern (C) extern regm_t BYTEREGS; |
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fd4acc376c45
Implemented object file output and linking on linux.
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parents:
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changeset
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208 enum BYTEREGS_INIT = (mAX|mBX|mCX|mDX); |
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fd4acc376c45
Implemented object file output and linking on linux.
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parents:
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changeset
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209 enum BYTEREGS_INIT_PIC = (mAX|mCX|mDX); |
| 0 | 210 } else { |
| 211 enum ALLREGS = (mAX|mBX|mCX|mDX|mSI|mDI); | |
| 212 ///#define ALLREGS_INIT ALLREGS | |
| 213 ///#undef BYTEREGS | |
| 214 ///#define BYTEREGS (mAX|mBX|mCX|mDX) | |
| 215 } | |
| 216 | |
| 217 //#define NPTRSIZE tysize[TYnptr] | |
| 218 enum NPTRSIZE = 4; | |
| 219 | |
| 220 uint ADDFWAIT() { return 0; } | |
| 221 | |
| 222 enum I16 = 0; // no 16 bit code for D | |
| 223 enum I32 = (NPTRSIZE == 4); | |
| 224 enum I64 = (NPTRSIZE == 8); // true if generating 64 bit code | |
| 225 | |
| 226 // For uRegmask (6 bits) | |
| 227 | |
| 228 // uRegmask flags when aopty == _float | |
| 229 enum _rst = 0x1; | |
| 230 enum _rsti = 0x2; | |
| 231 enum _64 = 0x4; | |
| 232 enum _80 = 0x8; | |
| 233 enum _128 = 0x40; | |
| 234 enum _112 = 0x10; | |
| 235 enum _224 = 0x20; | |
| 236 | |
| 237 ushort CONSTRUCT_FLAGS(ushort uSizemask, ubyte aopty, ubyte amod, ushort uRegmask ) { | |
| 238 return cast(ushort)( (uSizemask) | (aopty) << 4 | (amod) << 7 | (uRegmask) << 10); | |
| 239 } | |
| 240 | |
| 241 // _seg register values (amod == _rseg) | |
| 242 // | |
| 243 enum _ds = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x01 ); | |
| 244 enum _es = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x02 ); | |
| 245 enum _ss = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x04 ); | |
| 246 enum _fs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x08 ); | |
| 247 enum _gs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x10 ); | |
| 248 enum _cs = CONSTRUCT_FLAGS( 0, 0, _rseg, 0x20 ); | |
| 249 | |
| 250 // | |
| 251 // _special register values | |
| 252 // | |
| 253 enum _crn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x01 ); // CRn register (0,2,3) | |
| 254 enum _drn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x02 ); // DRn register (0-3,6-7) | |
| 255 enum _trn = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x04 ); // TRn register (3-7) | |
| 256 enum _mm = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x08 ); // MMn register (0-7) | |
| 257 enum _xmm = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0x10 ); // XMMn register (0-7) | |
| 258 | |
| 259 // | |
| 260 // Default register values | |
| 261 // | |
| 262 enum _al = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x01 ); // AL register | |
| 263 enum _ax = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x02 ); // AX register | |
| 264 enum _eax = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x04 ); // EAX register | |
| 265 enum _dx = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x08 ); // DX register | |
| 266 enum _cl = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._normal, 0x10 ); // CL register | |
| 267 | |
| 268 enum _rplus_r = 0x20; | |
| 269 //#define _plus_r CONSTRUCT_FLAGS( 0, 0, 0, _rplus_r ) | |
| 270 // Add the register to the opcode (no mod r/m) | |
| 271 | |
| 272 ubyte ASM_GET_uSizemask(uint us) { | |
| 273 return ((us) & 0x0F); | |
| 274 } | |
| 275 | |
| 276 ASM_OPERAND_TYPE ASM_GET_aopty(uint us) { | |
| 277 return cast(ASM_OPERAND_TYPE)(((us) & 0x70) >> 4); | |
| 278 } | |
| 279 | |
| 280 ASM_MODIFIERS ASM_GET_amod(uint us) { | |
| 281 return (cast(ASM_MODIFIERS)(((us) & 0x380) >> 7)); | |
| 282 } | |
| 283 | |
| 284 ubyte ASM_GET_uRegmask(uint us) { | |
| 285 return (((us) & 0xFC00) >> 10); | |
| 286 } | |
| 287 | |
| 288 enum _st = CONSTRUCT_FLAGS( 0, _float, 0, _rst ); // stack register 0 | |
| 289 enum _m112 = CONSTRUCT_FLAGS( 0, _m, 0, _112 ); | |
| 290 enum _m224 = CONSTRUCT_FLAGS( 0, _m, 0, _224 ); | |
| 291 enum _m512 = _m224; | |
| 292 enum _sti = CONSTRUCT_FLAGS( 0, _float, 0, _rsti ); | |
| 293 | |
| 294 REG regFp = { "ST", 0, _st }; | |
| 295 | |
| 296 REG[8] aregFp = [ | |
| 297 { "ST(0)", 0, _sti }, | |
| 298 { "ST(1)", 1, _sti }, | |
| 299 { "ST(2)", 2, _sti }, | |
| 300 { "ST(3)", 3, _sti }, | |
| 301 { "ST(4)", 4, _sti }, | |
| 302 { "ST(5)", 5, _sti }, | |
| 303 { "ST(6)", 6, _sti }, | |
| 304 { "ST(7)", 7, _sti } | |
| 305 ]; | |
| 306 | |
| 307 // For uSizemask (4 bits) | |
| 308 enum _8 = 0x1; | |
| 309 enum _16 = 0x2; | |
| 310 enum _32 = 0x4; | |
| 311 enum _48 = 0x8; | |
| 312 enum _anysize = (_8 | _16 | _32 | _48 ); | |
| 313 | |
| 314 enum _modrm = 0x10; | |
| 315 | |
| 316 //// This is for when the reg field of modregrm specifies which instruction it is | |
| 317 enum NUM_MASK = 0x7; | |
| 318 //#define _0 (0x0 | _modrm) // insure that some _modrm bit is set | |
| 319 //#define _1 0x1 // with _0 | |
| 320 //#define _2 0x2 | |
| 321 //#define _3 0x3 | |
| 322 //#define _4 0x4 | |
| 323 //#define _5 0x5 | |
| 324 //#define _6 0x6 | |
| 325 //#define _7 0x7 | |
| 326 // | |
| 327 //#define _modrm 0x10 | |
| 328 // | |
| 329 //#define _r _modrm | |
| 330 //#define _cb _modrm | |
| 331 //#define _cw _modrm | |
| 332 //#define _cd _modrm | |
| 333 //#define _cp _modrm | |
| 334 //#define _ib 0 | |
| 335 //#define _iw 0 | |
| 336 //#define _id 0 | |
| 337 //#define _rb 0 | |
| 338 //#define _rw 0 | |
| 339 //#define _rd 0 | |
| 340 enum _16_bit = 0x20; | |
| 341 enum _32_bit = 0x40; | |
| 342 enum _I386 = 0x80; // opcode is only for 386 and later | |
| 343 enum _16_bit_addr = 0x100; | |
| 344 enum _32_bit_addr = 0x200; | |
| 345 enum _fwait = 0x400; // Add an FWAIT prior to the instruction opcode | |
| 346 enum _nfwait = 0x800; // Do not add an FWAIT prior to the instruction | |
| 347 | |
| 348 enum MOD_MASK = 0xF000; // Mod mask | |
| 349 enum _modsi = 0x1000; // Instruction modifies SI | |
| 350 enum _moddx = 0x2000; // Instruction modifies DX | |
| 351 enum _mod2 = 0x3000; // Instruction modifies second operand | |
| 352 enum _modax = 0x4000; // Instruction modifies AX | |
| 353 enum _modnot1 = 0x5000; // Instruction does not modify first operand | |
| 354 enum _modaxdx = 0x6000; // instruction modifies AX and DX | |
| 355 enum _moddi = 0x7000; // Instruction modifies DI | |
| 356 enum _modsidi = 0x8000; // Instruction modifies SI and DI | |
| 357 enum _modcx = 0x9000; // Instruction modifies CX | |
| 358 enum _modes = 0xa000; // Instruction modifies ES | |
| 359 enum _modall = 0xb000; // Instruction modifies all register values | |
| 360 enum _modsiax = 0xc000; // Instruction modifies AX and SI | |
| 361 enum _modsinot1 = 0xd000; // Instruction modifies SI and not first param | |
| 362 | |
| 363 ///////////////////////////////////////////////// | |
| 364 // Operand flags - usOp1, usOp2, usOp3 | |
| 365 // | |
| 366 | |
| 367 alias ushort opflag_t; | |
| 368 | |
| 369 // Operand flags for normal opcodes | |
| 370 | |
| 371 enum _r8 = CONSTRUCT_FLAGS( _8, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
| 372 enum _r16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
| 373 enum _r32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._reg, ASM_MODIFIERS._normal, 0 ); | |
| 374 enum _m8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 375 enum _m16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 376 enum _m32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 377 enum _m48 = CONSTRUCT_FLAGS( _48, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 378 enum _m64 = CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 379 enum _m128 = CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._normal, 0 ); | |
| 380 enum _rm8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0 ); | |
| 381 enum _rm16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0 ); | |
| 382 enum _rm32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0); | |
| 383 enum _r32m16 = CONSTRUCT_FLAGS(_32|_16, ASM_OPERAND_TYPE._rm, ASM_MODIFIERS._normal, 0); | |
| 384 enum _imm8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0 ); | |
| 385 enum _imm16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
| 386 enum _imm32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
| 387 enum _rel8 = CONSTRUCT_FLAGS(_8, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
| 388 enum _rel16 = CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
| 389 enum _rel32 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._normal, 0); | |
| 390 enum _p1616 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._p, ASM_MODIFIERS._normal, 0); | |
| 391 enum _m1616 = CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._mnoi, ASM_MODIFIERS._normal, 0); | |
| 392 enum _p1632 = CONSTRUCT_FLAGS(_48, ASM_OPERAND_TYPE._p, ASM_MODIFIERS._normal, 0 ); | |
| 393 enum _m1632 = CONSTRUCT_FLAGS(_48, ASM_OPERAND_TYPE._mnoi, ASM_MODIFIERS._normal, 0); | |
| 394 enum _special = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rspecial, 0 ); | |
| 395 enum _seg = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._rseg, 0 ); | |
| 396 enum _a16 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._addr16, 0 ); | |
| 397 enum _a32 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._addr32, 0 ); | |
| 398 enum _f16 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._fn16, 0); | |
| 399 // Near function pointer | |
| 400 enum _f32 = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._fn32, 0); | |
| 401 // Far function pointer | |
| 402 enum _lbl = CONSTRUCT_FLAGS( 0, 0, ASM_MODIFIERS._flbl, 0 ); | |
| 403 // Label (in current function) | |
| 404 | |
| 405 enum _mmm32 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _32); | |
| 406 enum _mmm64 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _64); | |
| 407 enum _mmm128 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _128); | |
| 408 | |
| 409 enum _xmm_m32 = CONSTRUCT_FLAGS( _32, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
| 410 enum _xmm_m64 =CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
| 411 enum _xmm_m128 =CONSTRUCT_FLAGS( _anysize, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._rspecial, 0); | |
| 412 | |
| 413 enum _moffs8 = (_rel8); | |
| 414 enum _moffs16 = (_rel16 ); | |
| 415 enum _moffs32 = (_rel32 ); | |
| 416 | |
| 417 //////////////////////////////////////////////////////////////////// | |
| 418 // Operand flags for floating point opcodes are all just aliases for | |
| 419 // normal opcode variants and only asm_determine_operator_flags should | |
| 420 // need to care. | |
| 421 // | |
| 422 enum _fm80 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _80 ); | |
| 423 enum _fm64 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _64 ); | |
| 424 enum _fm128 = CONSTRUCT_FLAGS( 0, ASM_OPERAND_TYPE._m, 0, _128 ); | |
| 425 enum _fanysize = (_64 | _80 | _112 | _224); | |
| 426 | |
| 427 enum _AL =0; | |
| 428 enum _AH =4; | |
| 429 enum _AX =0; | |
| 430 enum _EAX =0; | |
| 431 enum _BL =3; | |
| 432 enum _BH =7; | |
| 433 enum _BX =3; | |
| 434 enum _EBX =3; | |
| 435 enum _CL =1; | |
| 436 enum _CH =5; | |
| 437 enum _CX =1; | |
| 438 enum _ECX =1; | |
| 439 enum _DL =2; | |
| 440 enum _DH =6; | |
| 441 enum _DX =2; | |
| 442 enum _EDX =2; | |
| 443 enum _BP =5; | |
| 444 enum _EBP =5; | |
| 445 enum _SP =4; | |
| 446 enum _ESP =4; | |
| 447 enum _DI =7; | |
| 448 enum _EDI =7; | |
| 449 enum _SI =6; | |
| 450 enum _ESI =6; | |
| 451 enum _ES =0; | |
| 452 enum _CS =1; | |
| 453 enum _SS =2; | |
| 454 enum _DS =3; | |
| 455 enum _GS =5; | |
| 456 enum _FS =4; | |
| 457 | |
| 458 enum ASM = 0x36; // string of asm bytes, actually an SS: opcode | |
| 459 enum ASM_END = 0xffff; // special opcode meaning end of table | |
| 460 | |
| 461 struct PTRNTAB0 | |
| 462 { | |
| 463 uint usOpcode; | |
| 464 // #define ASM_END 0xffff // special opcode meaning end of table | |
| 465 ushort usFlags; | |
| 466 } | |
| 467 | |
| 468 struct PTRNTAB1 | |
| 469 { | |
| 470 uint usOpcode; | |
| 471 ushort usFlags; | |
| 472 opflag_t usOp1; | |
| 473 } | |
| 474 | |
| 475 struct PTRNTAB2 | |
| 476 { | |
| 477 uint usOpcode; | |
| 478 ushort usFlags; | |
| 479 opflag_t usOp1; | |
| 480 opflag_t usOp2; | |
| 481 } | |
| 482 | |
| 483 struct PTRNTAB3 | |
| 484 { | |
| 485 uint usOpcode; | |
| 486 ushort usFlags; | |
| 487 opflag_t usOp1; | |
| 488 opflag_t usOp2; | |
| 489 opflag_t usOp3; | |
| 490 } | |
| 491 | |
| 492 union PTRNTAB | |
| 493 { | |
| 494 PTRNTAB0 *pptb0; | |
| 495 PTRNTAB1 *pptb1; | |
| 496 PTRNTAB2 *pptb2; | |
| 497 PTRNTAB3 *pptb3; | |
| 498 } | |
| 499 | |
| 500 struct OP | |
| 501 { | |
| 502 ubyte usNumops; | |
| 503 PTRNTAB ptb; | |
| 504 } | |
| 505 | |
| 506 enum ASM_JUMPTYPE | |
| 507 { | |
| 508 ASM_JUMPTYPE_UNSPECIFIED, | |
| 509 ASM_JUMPTYPE_SHORT, | |
| 510 ASM_JUMPTYPE_NEAR, | |
| 511 ASM_JUMPTYPE_FAR | |
| 512 } // ajt | |
| 513 | |
| 514 mixin(BringToCurrentScope!(ASM_JUMPTYPE)); | |
| 515 | |
| 516 struct OPND | |
| 517 { | |
| 518 REG* base; // if plain register | |
| 519 REG* pregDisp1; // if [register1] | |
| 520 REG* pregDisp2; | |
| 521 REG* segreg; // if segment override | |
| 522 char indirect = 0; // if had a '*' or '.' | |
| 523 char bOffset = 0; // if 'offset' keyword | |
| 524 char bSeg = 0; // if 'segment' keyword | |
| 525 char bPtr = 0; // if 'ptr' keyword | |
| 526 uint uchMultiplier; // register multiplier; valid values are 0,1,2,4,8 | |
| 527 opflag_t usFlags; | |
| 528 Dsymbol s; | |
| 529 int disp; | |
| 530 real real_ = 0; | |
| 531 Type ptype; | |
| 532 ASM_JUMPTYPE ajt; | |
| 533 } | |
| 534 | |
| 535 struct ASM_STATE | |
| 536 { | |
| 537 ubyte ucItype; // Instruction type | |
| 538 Loc loc; | |
| 539 ubyte bInit; | |
| 540 LabelDsymbol psDollar; | |
| 541 Dsymbol psLocalsize; | |
| 542 jmp_buf env; | |
| 543 ubyte bReturnax; | |
| 544 AsmStatement statement; | |
| 545 Scope sc; | |
| 546 } | |
| 547 | |
| 548 enum IT | |
| 549 { | |
| 550 ITprefix = 0x10, // special prefix | |
| 551 ITjump = 0x20, // jump instructions CALL, Jxx and LOOPxx | |
| 552 ITimmed = 0x30, // value of an immediate operand controls | |
| 553 // code generation | |
| 554 ITopt = 0x40, // not all operands are required | |
| 555 ITshift = 0x50, // rotate and shift instructions | |
| 556 ITfloat = 0x60, // floating point coprocessor instructions | |
| 557 ITdata = 0x70, // DB, DW, DD, DQ, DT pseudo-ops | |
| 558 ITaddr = 0x80, // DA (define addresss) pseudo-op | |
| 559 ITMASK = 0xF0, | |
| 560 ITSIZE = 0x0F, // mask for size | |
| 561 } | |
| 562 | |
| 563 alias IT.ITprefix ITprefix; | |
| 564 alias IT.ITjump ITjump; | |
| 565 alias IT.ITimmed ITimmed; | |
| 566 alias IT.ITopt ITopt; | |
| 567 alias IT.ITshift ITshift; | |
| 568 alias IT.ITfloat ITfloat; | |
| 569 alias IT.ITdata ITdata; | |
| 570 alias IT.ITaddr ITaddr; | |
| 571 alias IT.ITMASK ITMASK; | |
| 572 alias IT.ITSIZE ITSIZE; | |
| 573 | |
| 574 __gshared ASM_STATE asmstate; | |
| 575 __gshared Token* asmtok; | |
| 576 __gshared TOK tok_value; | |
| 577 | |
| 578 // Additional tokens for the inline assembler | |
| 579 enum ASMTK | |
| 580 { | |
| 581 ASMTKlocalsize = TOKMAX + 1, | |
| 582 ASMTKdword, | |
| 583 ASMTKeven, | |
| 584 ASMTKfar, | |
| 585 ASMTKnaked, | |
| 586 ASMTKnear, | |
| 587 ASMTKptr, | |
| 588 ASMTKqword, | |
| 589 ASMTKseg, | |
| 590 ASMTKword, | |
| 591 ASMTKmax = ASMTKword - (TOK.TOKMAX + 1) + 1 | |
| 592 } | |
| 593 | |
| 594 mixin(BringToCurrentScope!(ASMTK)); | |
| 595 | |
| 596 enum OP_DB | |
| 597 { | |
| 598 ///version (SCPP) { | |
| 599 /// // These are the number of bytes | |
| 600 /// OPdb = 1, | |
| 601 /// OPdw = 2, | |
| 602 /// OPdd = 4, | |
| 603 /// OPdq = 8, | |
| 604 /// OPdt = 10, | |
| 605 /// OPdf = 4, | |
| 606 /// OPde = 10, | |
| 607 /// OPds = 2, | |
| 608 /// OPdi = 4, | |
| 609 /// OPdl = 8, | |
| 610 ///} | |
| 611 ///version (MARS) { | |
| 612 // Integral types | |
| 613 OPdb, | |
| 614 OPds, | |
| 615 OPdi, | |
| 616 OPdl, | |
| 617 | |
| 618 // Float types | |
| 619 OPdf, | |
| 620 OPdd, | |
| 621 OPde, | |
| 622 | |
| 623 // Deprecated | |
| 624 OPdw = OPds, | |
| 625 OPdq = OPdl, | |
| 626 OPdt = OPde, | |
| 627 ///} | |
| 628 } | |
| 629 | |
| 630 OPND* opnd_calloc() | |
| 631 { | |
| 632 return new OPND(); | |
| 633 } | |
| 634 | |
| 635 void opnd_free(OPND* o) | |
| 636 { | |
| 637 delete o; | |
| 638 } | |
| 639 | |
| 640 /****************************** | |
| 641 * Convert assembly instruction into a code, and append | |
| 642 * it to the code generated for this block. | |
| 643 */ | |
| 644 | |
| 645 code* asm_emit(Loc loc, uint usNumops, PTRNTAB ptb, OP* pop, OPND* popnd1, OPND* popnd2, OPND* popnd3) | |
| 646 { | |
| 647 debug { | |
| 648 ubyte auchOpcode[16]; | |
| 649 uint usIdx = 0; | |
| 650 void emit(ubyte op) { | |
| 651 auchOpcode[usIdx++] = op; | |
| 652 } | |
| 653 } else { | |
| 654 void emit(ubyte op) {} | |
| 655 } | |
| 656 Identifier id; | |
| 657 // ushort us; | |
| 658 ubyte* puc; | |
| 659 uint usDefaultseg; | |
| 660 code* pc = null; | |
| 661 OPND* popndTmp; | |
| 662 ASM_OPERAND_TYPE aoptyTmp; | |
| 663 ushort uSizemaskTmp; | |
| 664 REG* pregSegment; | |
| 665 code* pcPrefix = null; | |
| 666 | |
| 667 uint uSizemask1 = 0; | |
| 668 uint uSizemask2 = 0; | |
| 669 uint uSizemask3 = 0; | |
| 670 | |
| 671 //ASM_OPERAND_TYPE aopty1 = ASM_OPERAND_TYPE._reg , aopty2 = 0, aopty3 = 0; | |
| 672 ASM_MODIFIERS amod1 = ASM_MODIFIERS._normal; | |
| 673 ASM_MODIFIERS amod2 = ASM_MODIFIERS._normal; | |
| 674 ASM_MODIFIERS amod3 = ASM_MODIFIERS._normal; | |
| 675 | |
| 676 uint uRegmask1 = 0; | |
| 677 uint uRegmask2 = 0; | |
| 678 uint uRegmask3 = 0; | |
| 679 | |
| 680 uint uSizemaskTable1 = 0; | |
| 681 uint uSizemaskTable2 = 0; | |
| 682 uint uSizemaskTable3 = 0; | |
| 683 | |
| 684 ASM_OPERAND_TYPE aoptyTable1 = ASM_OPERAND_TYPE._reg; | |
| 685 ASM_OPERAND_TYPE aoptyTable2 = ASM_OPERAND_TYPE._reg; | |
| 686 ASM_OPERAND_TYPE aoptyTable3 = ASM_OPERAND_TYPE._reg; | |
| 687 | |
| 688 ASM_MODIFIERS amodTable1 = ASM_MODIFIERS._normal; | |
| 689 ASM_MODIFIERS amodTable2 = ASM_MODIFIERS._normal; | |
| 690 ASM_MODIFIERS amodTable3 = ASM_MODIFIERS._normal; | |
| 691 | |
| 692 uint uRegmaskTable1 = 0; | |
| 693 uint uRegmaskTable2 = 0; | |
| 694 uint uRegmaskTable3 = 0; | |
| 695 | |
| 696 pc = code_calloc(); | |
| 697 pc.Iflags |= CF.CFpsw; // assume we want to keep the flags | |
| 698 | |
| 699 if (popnd1) | |
| 700 { | |
| 701 uSizemask1 = ASM_GET_uSizemask(popnd1.usFlags); | |
| 702 //aopty1 = ASM_GET_aopty(popnd1.usFlags); | |
| 703 amod1 = ASM_GET_amod(popnd1.usFlags); | |
| 704 uRegmask1 = ASM_GET_uRegmask(popnd1.usFlags); | |
| 705 | |
| 706 uSizemaskTable1 = ASM_GET_uSizemask(ptb.pptb1.usOp1); | |
| 707 aoptyTable1 = ASM_GET_aopty(ptb.pptb1.usOp1); | |
| 708 amodTable1 = ASM_GET_amod(ptb.pptb1.usOp1); | |
| 709 uRegmaskTable1 = ASM_GET_uRegmask(ptb.pptb1.usOp1); | |
| 710 | |
| 711 } | |
| 712 | |
| 713 if (popnd2) | |
| 714 { | |
| 715 static if (false) { | |
| 716 printf("\nasm_emit:\nop: "); | |
| 717 asm_output_flags(popnd2.usFlags); | |
| 718 printf("\ntb: "); | |
| 719 asm_output_flags(ptb.pptb2.usOp2); | |
| 720 printf("\n"); | |
| 721 } | |
| 722 uSizemask2 = ASM_GET_uSizemask(popnd2.usFlags); | |
| 723 //aopty2 = ASM_GET_aopty(popnd2.usFlags); | |
| 724 amod2 = ASM_GET_amod(popnd2.usFlags); | |
| 725 uRegmask2 = ASM_GET_uRegmask(popnd2.usFlags); | |
| 726 | |
| 727 uSizemaskTable2 = ASM_GET_uSizemask(ptb.pptb2.usOp2); | |
| 728 aoptyTable2 = ASM_GET_aopty(ptb.pptb2.usOp2); | |
| 729 amodTable2 = ASM_GET_amod(ptb.pptb2.usOp2); | |
| 730 uRegmaskTable2 = ASM_GET_uRegmask(ptb.pptb2.usOp2); | |
| 731 } | |
| 732 if (popnd3) | |
| 733 { | |
| 734 uSizemask3 = ASM_GET_uSizemask(popnd3.usFlags); | |
| 735 //aopty3 = ASM_GET_aopty(popnd3.usFlags); | |
| 736 amod3 = ASM_GET_amod(popnd3.usFlags); | |
| 737 uRegmask3 = ASM_GET_uRegmask(popnd3.usFlags); | |
| 738 | |
| 739 uSizemaskTable3 = ASM_GET_uSizemask(ptb.pptb3.usOp3); | |
| 740 aoptyTable3 = ASM_GET_aopty(ptb.pptb3.usOp3); | |
| 741 amodTable3 = ASM_GET_amod(ptb.pptb3.usOp3); | |
| 742 uRegmaskTable3 = ASM_GET_uRegmask(ptb.pptb3.usOp3); | |
| 743 } | |
| 744 | |
| 745 asmstate.statement.regs |= asm_modify_regs(ptb, popnd1, popnd2); | |
| 746 | |
| 747 if (!I32 && ptb.pptb0.usFlags & _I386) | |
| 748 { | |
| 749 switch (usNumops) | |
| 750 { | |
| 751 case 0: | |
| 752 break; | |
| 753 | |
| 754 case 1: | |
| 755 if (popnd1 && popnd1.s) | |
| 756 { | |
| 757 L386_WARNING: | |
| 758 id = popnd1.s.ident; | |
| 759 L386_WARNING2: | |
| 760 if (config.target_cpu < TARGET.TARGET_80386) | |
| 761 { | |
| 762 // Reference to %s caused a 386 instruction to be generated | |
| 763 //warerr(WM_386_op, id.toChars()); | |
| 764 } | |
| 765 } | |
| 766 break; | |
| 767 | |
| 768 case 2: | |
| 769 case 3: // The third operand is always an ASM_OPERAND_TYPE._imm | |
| 770 if (popnd1 && popnd1.s) | |
| 771 goto L386_WARNING; | |
| 772 if (popnd2 && popnd2.s) | |
| 773 { | |
| 774 id = popnd2.s.ident; | |
| 775 goto L386_WARNING2; | |
| 776 } | |
| 777 break; | |
| 778 } | |
| 779 } | |
| 780 | |
| 781 switch (usNumops) | |
| 782 { | |
| 783 case 0: | |
| 784 if ((I32 && (ptb.pptb0.usFlags & _16_bit)) || (!I32 && (ptb.pptb0.usFlags & _32_bit))) | |
| 785 { | |
| 786 emit(0x66); | |
| 787 pc.Iflags |= CF.CFopsize; | |
| 788 } | |
| 789 break; | |
| 790 | |
| 791 // 3 and 2 are the same because the third operand is always | |
| 792 // an immediate and does not affect operation size | |
| 793 case 3: | |
| 794 case 2: | |
| 795 if ((I32 && | |
| 796 (amod2 == ASM_MODIFIERS._addr16 || | |
| 797 (uSizemaskTable2 & _16 && aoptyTable2 == ASM_OPERAND_TYPE._rel) || | |
| 798 (uSizemaskTable2 & _32 && aoptyTable2 == ASM_OPERAND_TYPE._mnoi) || | |
| 799 (ptb.pptb2.usFlags & _16_bit_addr) | |
| 800 ) | |
| 801 ) || | |
| 802 (!I32 && | |
| 803 (amod2 == ASM_MODIFIERS._addr32 || | |
| 804 (uSizemaskTable2 & _32 && aoptyTable2 == ASM_OPERAND_TYPE._rel) || | |
| 805 (uSizemaskTable2 & _48 && aoptyTable2 == ASM_OPERAND_TYPE._mnoi) || | |
| 806 (ptb.pptb2.usFlags & _32_bit_addr))) | |
| 807 ) | |
| 808 { | |
| 809 emit(0x67); | |
| 810 pc.Iflags |= CF.CFaddrsize; | |
| 811 | |
| 812 if (I32) | |
| 813 amod2 = ASM_MODIFIERS._addr16; | |
| 814 else | |
| 815 amod2 = ASM_MODIFIERS._addr32; | |
| 816 | |
| 817 popnd2.usFlags &= ~CONSTRUCT_FLAGS(0,0,7,0); | |
| 818 popnd2.usFlags |= CONSTRUCT_FLAGS(0,0,amod2,0); | |
| 819 } | |
| 820 | |
| 821 | |
| 822 /* Fall through, operand 1 controls the opsize, but the | |
| 823 address size can be in either operand 1 or operand 2, | |
| 824 hence the extra checking the flags tested for SHOULD | |
| 825 be mutex on operand 1 and operand 2 because there is | |
| 826 only one MOD R/M byte | |
| 827 */ | |
| 828 | |
| 829 case 1: | |
| 830 if ((I32 && | |
| 831 (amod1 == ASM_MODIFIERS._addr16 || | |
| 832 (uSizemaskTable1 & _16 && aoptyTable1 == ASM_OPERAND_TYPE._rel) || | |
| 833 (uSizemaskTable1 & _32 && aoptyTable1 == ASM_OPERAND_TYPE._mnoi) || | |
| 834 (ptb.pptb1.usFlags & _16_bit_addr))) || | |
| 835 (!I32 && | |
| 836 (amod1 == ASM_MODIFIERS._addr32 || | |
| 837 (uSizemaskTable1 & _32 && aoptyTable1 == ASM_OPERAND_TYPE._rel) || | |
| 838 (uSizemaskTable1 & _48 && aoptyTable1 == ASM_OPERAND_TYPE._mnoi) || | |
| 839 (ptb.pptb1.usFlags & _32_bit_addr)))) | |
| 840 { | |
| 841 emit(0x67); // address size prefix | |
| 842 pc.Iflags |= CF.CFaddrsize; | |
| 843 if (I32) | |
| 844 amod1 = ASM_MODIFIERS._addr16; | |
| 845 else | |
| 846 amod1 = ASM_MODIFIERS._addr32; | |
| 847 popnd1.usFlags &= ~CONSTRUCT_FLAGS(0,0,7,0); | |
| 848 popnd1.usFlags |= CONSTRUCT_FLAGS(0,0,amod1,0); | |
| 849 } | |
| 850 | |
| 851 // If the size of the operand is unknown, assume that it is | |
| 852 // the default size | |
| 853 if ((I32 && (ptb.pptb0.usFlags & _16_bit)) || | |
| 854 (!I32 && (ptb.pptb0.usFlags & _32_bit))) | |
| 855 { | |
| 856 //if (asmstate.ucItype != ITjump) | |
| 857 { emit(0x66); | |
| 858 pc.Iflags |= CF.CFopsize; | |
| 859 } | |
| 860 } | |
| 861 if (((pregSegment = (popndTmp = popnd1).segreg) != null) || | |
| 862 ((popndTmp = popnd2) != null && | |
| 863 (pregSegment = popndTmp.segreg) != null) | |
| 864 ) | |
| 865 { | |
| 866 if ((popndTmp.pregDisp1 && | |
| 867 popndTmp.pregDisp1.val == _BP) || | |
| 868 popndTmp.pregDisp2 && | |
| 869 popndTmp.pregDisp2.val == _BP) | |
| 870 usDefaultseg = _SS; | |
| 871 else | |
| 872 usDefaultseg = _DS; | |
| 873 if (pregSegment.val != usDefaultseg) | |
| 874 switch (pregSegment.val) { | |
| 875 case _CS: | |
| 876 emit(0x2e); | |
| 877 pc.Iflags |= CF.CFcs; | |
| 878 break; | |
| 879 case _SS: | |
| 880 emit(0x36); | |
| 881 pc.Iflags |= CF.CFss; | |
| 882 break; | |
| 883 case _DS: | |
| 884 emit(0x3e); | |
| 885 pc.Iflags |= CF.CFds; | |
| 886 break; | |
| 887 case _ES: | |
| 888 emit(0x26); | |
| 889 pc.Iflags |= CF.CFes; | |
| 890 break; | |
| 891 case _FS: | |
| 892 emit(0x64); | |
| 893 pc.Iflags |= CF.CFfs; | |
| 894 break; | |
| 895 case _GS: | |
| 896 emit(0x65); | |
| 897 pc.Iflags |= CF.CFgs; | |
| 898 break; | |
| 899 default: | |
| 900 assert(0); | |
| 901 } | |
| 902 } | |
| 903 break; | |
| 904 } | |
| 905 uint usOpcode = ptb.pptb0.usOpcode; | |
| 906 | |
| 907 if ((usOpcode & 0xFFFFFF00) == 0x660F3A00 || // SSE4 | |
| 908 (usOpcode & 0xFFFFFF00) == 0x660F3800) // SSE4 | |
| 909 { | |
| 910 pc.Iflags |= CF.CFopsize; | |
| 911 pc.Iop = 0x0F; | |
| 912 pc.Iop2 = (usOpcode >> 8) & 0xFF; | |
| 913 pc.Iop3 = usOpcode & 0xFF; | |
| 914 goto L3; | |
| 915 } | |
| 916 switch (usOpcode & 0xFF0000) | |
| 917 { | |
| 918 case 0: | |
| 919 break; | |
| 920 | |
| 921 case 0x660000: | |
| 922 pc.Iflags |= CF.CFopsize; | |
| 923 usOpcode &= 0xFFFF; | |
| 924 break; | |
| 925 | |
| 926 case 0xF20000: // REPNE | |
| 927 case 0xF30000: // REP/REPE | |
| 928 // BUG: What if there's an address size prefix or segment | |
| 929 // override prefix? Must the REP be adjacent to the rest | |
| 930 // of the opcode? | |
| 931 pcPrefix = code_calloc(); | |
| 932 pcPrefix.Iop = cast(ubyte)(usOpcode >> 16); | |
| 933 usOpcode &= 0xFFFF; | |
| 934 break; | |
| 935 | |
| 936 case 0x0F0000: // an AMD instruction | |
| 937 puc = (cast(ubyte*) &usOpcode); | |
| 938 if (puc[1] != 0x0F) // if not AMD instruction 0x0F0F | |
| 939 goto L4; | |
| 940 emit(puc[2]); | |
| 941 emit(puc[1]); | |
| 942 emit(puc[0]); | |
| 943 pc.Iop = puc[2]; | |
| 944 pc.Iop2 = puc[1]; | |
| 945 pc.IEVint2() = puc[0]; | |
| 946 pc.IFL2 = FL.FLconst; | |
| 947 goto L3; | |
| 948 | |
| 949 default: | |
| 950 puc = (cast(ubyte*) &usOpcode); | |
| 951 L4: | |
| 952 emit(puc[2]); | |
| 953 emit(puc[1]); | |
| 954 emit(puc[0]); | |
| 955 pc.Iop = puc[2]; | |
| 956 pc.Iop2 = puc[1]; | |
| 957 pc.Irm = puc[0]; | |
| 958 goto L3; | |
| 959 } | |
| 960 if (usOpcode & 0xff00) | |
| 961 { | |
| 962 puc = (cast(ubyte*) &(usOpcode)); | |
| 963 emit(puc[1]); | |
| 964 emit(puc[0]); | |
| 965 pc.Iop = puc[1]; | |
| 966 if (pc.Iop == 0x0f) | |
| 967 pc.Iop2 = puc[0]; | |
| 968 else | |
| 969 { | |
| 970 if (usOpcode == 0xDFE0) // FSTSW AX | |
| 971 { pc.Irm = puc[0]; | |
| 972 goto L2; | |
| 973 } | |
| 974 if (asmstate.ucItype == IT.ITfloat) | |
| 975 pc.Irm = puc[0]; | |
| 976 else | |
| 977 { | |
| 978 pc.IEVint2() = puc[0]; | |
| 979 pc.IFL2 = FL.FLconst; | |
| 980 } | |
| 981 } | |
| 982 } | |
| 983 else | |
| 984 { | |
| 985 emit(cast(ubyte)usOpcode); | |
| 986 pc.Iop = cast(ubyte)usOpcode; | |
| 987 } | |
| 988 L3: ; | |
| 989 | |
| 990 // If CALL, Jxx or LOOPx to a symbolic location | |
| 991 if (/*asmstate.ucItype == ITjump &&*/ | |
| 992 popnd1 && popnd1.s && popnd1.s.isLabel()) | |
| 993 { | |
| 994 Dsymbol s = popnd1.s; | |
| 995 if (s == asmstate.psDollar) | |
| 996 { | |
| 997 pc.IFL2 = FL.FLconst; | |
| 998 if (uSizemaskTable1 & (_8 | _16)) | |
| 999 pc.IEVint2() = popnd1.disp; | |
| 1000 else if (uSizemaskTable1 & _32) | |
| 1001 pc.IEVpointer2() = cast(targ_size_t) popnd1.disp; | |
| 1002 } | |
| 1003 else | |
| 1004 { | |
| 1005 LabelDsymbol label = s.isLabel(); | |
| 1006 if (label) | |
| 1007 { | |
| 1008 if ((pc.Iop & 0xF0) == 0x70) | |
| 1009 pc.Iflags |= CF.CFjmp16; | |
| 1010 if (usNumops == 1) | |
| 1011 { | |
| 1012 pc.IFL2 = FL.FLblock; | |
| 1013 pc.IEVlsym2() = label; | |
| 1014 } | |
| 1015 else | |
| 1016 { | |
| 1017 pc.IFL1 = FL.FLblock; | |
| 1018 pc.IEVlsym1() = label; | |
| 1019 } | |
| 1020 } | |
| 1021 } | |
| 1022 } | |
| 1023 | |
| 1024 switch (usNumops) | |
| 1025 { | |
| 1026 case 0: | |
| 1027 break; | |
| 1028 | |
| 1029 case 1: | |
| 1030 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
| 1031 amodTable1 == ASM_MODIFIERS._normal && (uRegmaskTable1 & _rplus_r))) | |
| 1032 { | |
| 1033 if (asmstate.ucItype == IT.ITfloat) | |
| 1034 pc.Irm += popnd1.base.val; | |
| 1035 else if (pc.Iop == 0x0f) | |
| 1036 pc.Iop2 += popnd1.base.val; | |
| 1037 else | |
| 1038 pc.Iop += popnd1.base.val; | |
| 1039 debug { | |
| 1040 auchOpcode[usIdx-1] += popnd1.base.val; | |
| 1041 } | |
| 1042 } | |
| 1043 else | |
| 1044 { | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1045 debug asm_make_modrm_byte( |
| 0 | 1046 auchOpcode, &usIdx, |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1047 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1048 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1049 popnd1, null); |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1050 else asm_make_modrm_byte( |
| 0 | 1051 pc, |
| 1052 ptb.pptb1.usFlags, | |
| 1053 popnd1, null); | |
| 1054 } | |
| 1055 | |
| 1056 popndTmp = popnd1; | |
| 1057 aoptyTmp = aoptyTable1; | |
| 1058 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
| 1059 L1: | |
| 1060 if (aoptyTmp == ASM_OPERAND_TYPE._imm) | |
| 1061 { | |
| 1062 Declaration d = popndTmp.s ? popndTmp.s.isDeclaration() : null; | |
| 1063 if (popndTmp.bSeg) | |
| 1064 { | |
| 1065 if (!(d && d.isDataseg())) | |
| 1066 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 1067 } | |
| 1068 switch (uSizemaskTmp) | |
| 1069 { | |
| 1070 case _8: | |
| 1071 case _16: | |
| 1072 case _32: | |
| 1073 if (popndTmp.s is asmstate.psLocalsize) | |
| 1074 { | |
| 1075 pc.IFL2 = FL.FLlocalsize; | |
| 1076 pc.IEVdsym2() = null; | |
| 1077 pc.Iflags |= CF.CFoff; | |
| 1078 pc.IEVoffset2() = popndTmp.disp; | |
| 1079 } | |
| 1080 else if (d) | |
| 1081 { | |
| 1082 static if (false) { | |
| 1083 if ((pc.IFL2 = d.Sfl) == 0) | |
| 1084 pc.IFL2 = FL.FLdsymbol; | |
| 1085 } else { | |
| 1086 pc.IFL2 = FL.FLdsymbol; | |
| 1087 } | |
| 1088 pc.Iflags &= ~(CF.CFseg | CF.CFoff); | |
| 1089 if (popndTmp.bSeg) | |
| 1090 pc.Iflags |= CF.CFseg; | |
| 1091 else | |
| 1092 pc.Iflags |= CF.CFoff; | |
| 1093 | |
| 1094 pc.IEVoffset2() = popndTmp.disp; | |
| 1095 pc.IEVdsym2() = d; | |
| 1096 } | |
| 1097 else | |
| 1098 { | |
| 1099 pc.IEVint2() = popndTmp.disp; | |
| 1100 pc.IFL2 = FL.FLconst; | |
| 1101 } | |
| 1102 break; | |
| 1103 } | |
| 1104 } | |
| 1105 | |
| 1106 break; | |
| 1107 case 2: | |
| 1108 // | |
| 1109 // If there are two immediate operands then | |
| 1110 // | |
| 1111 if (aoptyTable1 == ASM_OPERAND_TYPE._imm && aoptyTable2 == ASM_OPERAND_TYPE._imm) | |
| 1112 { | |
| 1113 pc.IEVint1() = popnd1.disp; | |
| 1114 pc.IFL1 = FL.FLconst; | |
| 1115 pc.IEVint2() = popnd2.disp; | |
| 1116 pc.IFL2 = FL.FLconst; | |
| 1117 break; | |
| 1118 } | |
| 1119 if (aoptyTable2 == ASM_OPERAND_TYPE._m || | |
| 1120 aoptyTable2 == ASM_OPERAND_TYPE._rel || | |
| 1121 // If not MMX register (_mm) or XMM register (_xmm) | |
| 1122 (amodTable1 == ASM_MODIFIERS._rspecial && !(uRegmaskTable1 & (0x08 | 0x10)) && !uSizemaskTable1) || | |
| 1123 aoptyTable2 == ASM_OPERAND_TYPE._rm || | |
| 1124 (popnd1.usFlags == _r32 && popnd2.usFlags == _xmm) || | |
| 1125 (popnd1.usFlags == _r32 && popnd2.usFlags == _mm)) | |
| 1126 { | |
| 1127 static if (false) { | |
| 1128 printf("test4 %d,%d,%d,%d\n", | |
| 1129 (aoptyTable2 == ASM_OPERAND_TYPE._m), | |
| 1130 (aoptyTable2 == ASM_OPERAND_TYPE._rel), | |
| 1131 (amodTable1 == ASM_MODIFIERS._rspecial && !(uRegmaskTable1 & (0x08 | 0x10))), | |
| 1132 (aoptyTable2 == ASM_OPERAND_TYPE._rm) | |
| 1133 ); | |
| 1134 printf("usOpcode = %x\n", usOpcode); | |
| 1135 } | |
| 1136 if (ptb.pptb0.usOpcode == 0x0F7E || // MOVD _rm32,_mm | |
| 1137 ptb.pptb0.usOpcode == 0x660F7E // MOVD _rm32,_xmm | |
| 1138 ) | |
| 1139 { | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1140 debug asm_make_modrm_byte( |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1141 auchOpcode, &usIdx, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1142 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1143 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1144 popnd1, popnd2); |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1145 else asm_make_modrm_byte(pc, ptb.pptb1.usFlags, popnd1, popnd2); |
| 0 | 1146 } |
| 1147 else | |
| 1148 { | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1149 debug asm_make_modrm_byte( |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1150 auchOpcode, &usIdx, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1151 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1152 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1153 popnd2, popnd1); |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1154 else asm_make_modrm_byte(pc, ptb.pptb1.usFlags, popnd2, popnd1); |
| 0 | 1155 } |
| 1156 popndTmp = popnd1; | |
| 1157 aoptyTmp = aoptyTable1; | |
| 1158 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
| 1159 } | |
| 1160 else | |
| 1161 { | |
| 1162 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
| 1163 amodTable1 == ASM_MODIFIERS._normal && | |
| 1164 (uRegmaskTable1 & _rplus_r))) | |
| 1165 { | |
| 1166 if (asmstate.ucItype == IT.ITfloat) | |
| 1167 pc.Irm += popnd1.base.val; | |
| 1168 else if (pc.Iop == 0x0f) | |
| 1169 pc.Iop2 += popnd1.base.val; | |
| 1170 else | |
| 1171 pc.Iop += popnd1.base.val; | |
| 1172 debug { | |
| 1173 auchOpcode[usIdx-1] += popnd1.base.val; | |
| 1174 } | |
| 1175 } | |
| 1176 else if (((aoptyTable2 == ASM_OPERAND_TYPE._reg || aoptyTable2 == ASM_OPERAND_TYPE._float) && | |
| 1177 amodTable2 == ASM_MODIFIERS._normal && | |
| 1178 (uRegmaskTable2 & _rplus_r))) | |
| 1179 { | |
| 1180 if (asmstate.ucItype == IT.ITfloat) | |
| 1181 pc.Irm += popnd2.base.val; | |
| 1182 else if (pc.Iop == 0x0f) | |
| 1183 pc.Iop2 += popnd2.base.val; | |
| 1184 else | |
| 1185 pc.Iop += popnd2.base.val; | |
| 1186 debug { | |
| 1187 auchOpcode[usIdx-1] += popnd2.base.val; | |
| 1188 } | |
| 1189 } | |
| 1190 else if (ptb.pptb0.usOpcode == 0xF30FD6 || | |
| 1191 ptb.pptb0.usOpcode == 0x0F12 || | |
| 1192 ptb.pptb0.usOpcode == 0x0F16 || | |
| 1193 ptb.pptb0.usOpcode == 0x660F50 || | |
| 1194 ptb.pptb0.usOpcode == 0x0F50 || | |
| 1195 ptb.pptb0.usOpcode == 0x660FD7 || | |
| 1196 ptb.pptb0.usOpcode == 0x0FD7) | |
| 1197 { | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1198 debug asm_make_modrm_byte( |
| 0 | 1199 ///debug { |
| 1200 auchOpcode, &usIdx, | |
| 1201 ///} | |
| 1202 pc, | |
| 1203 ptb.pptb1.usFlags, | |
| 1204 popnd2, popnd1); | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1205 else asm_make_modrm_byte( |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1206 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1207 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1208 popnd2, popnd1); |
| 0 | 1209 } |
| 1210 else | |
| 1211 { | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1212 debug asm_make_modrm_byte( |
| 0 | 1213 ///debug { |
| 1214 auchOpcode, &usIdx, | |
| 1215 ///} | |
| 1216 pc, | |
| 1217 ptb.pptb1.usFlags, | |
| 1218 popnd1, popnd2); | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1219 else asm_make_modrm_byte( |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1220 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1221 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1222 popnd1, popnd2); |
| 0 | 1223 |
| 1224 } | |
| 1225 if (aoptyTable1 == ASM_OPERAND_TYPE._imm) | |
| 1226 { | |
| 1227 popndTmp = popnd1; | |
| 1228 aoptyTmp = aoptyTable1; | |
| 1229 uSizemaskTmp = cast(ushort)uSizemaskTable1; | |
| 1230 } | |
| 1231 else | |
| 1232 { | |
| 1233 popndTmp = popnd2; | |
| 1234 aoptyTmp = aoptyTable2; | |
| 1235 uSizemaskTmp = cast(ushort)uSizemaskTable2; | |
| 1236 } | |
| 1237 } | |
| 1238 goto L1; | |
| 1239 | |
| 1240 case 3: | |
| 1241 if (aoptyTable2 == ASM_OPERAND_TYPE._m || aoptyTable2 == ASM_OPERAND_TYPE._rm || | |
| 1242 usOpcode == 0x0FC5) // PEXTRW | |
| 1243 { | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1244 debug asm_make_modrm_byte( |
| 0 | 1245 ///debug { |
| 1246 auchOpcode, &usIdx, | |
| 1247 ///} | |
| 1248 pc, | |
| 1249 ptb.pptb1.usFlags, | |
| 1250 popnd2, popnd1); | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1251 else asm_make_modrm_byte( |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1252 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1253 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1254 popnd2, popnd1); |
| 0 | 1255 popndTmp = popnd3; |
| 1256 aoptyTmp = aoptyTable3; | |
| 1257 uSizemaskTmp = cast(ushort)uSizemaskTable3; | |
| 1258 } else { | |
| 1259 if (((aoptyTable1 == ASM_OPERAND_TYPE._reg || aoptyTable1 == ASM_OPERAND_TYPE._float) && | |
| 1260 amodTable1 == ASM_MODIFIERS._normal && | |
| 1261 (uRegmaskTable1 &_rplus_r))) | |
| 1262 { | |
| 1263 if (asmstate.ucItype == IT.ITfloat) | |
| 1264 pc.Irm += popnd1.base.val; | |
| 1265 else if (pc.Iop == 0x0f) | |
| 1266 pc.Iop2 += popnd1.base.val; | |
| 1267 else | |
| 1268 pc.Iop += popnd1.base.val; | |
| 1269 debug { | |
| 1270 auchOpcode[usIdx-1] += popnd1.base.val; | |
| 1271 } | |
| 1272 } | |
| 1273 else if (((aoptyTable2 == ASM_OPERAND_TYPE._reg || aoptyTable2 == ASM_OPERAND_TYPE._float) && | |
| 1274 amodTable2 == ASM_MODIFIERS._normal && | |
| 1275 (uRegmaskTable2 &_rplus_r))) | |
| 1276 { | |
| 1277 if (asmstate.ucItype == IT.ITfloat) | |
| 1278 pc.Irm += popnd1.base.val; | |
| 1279 else if (pc.Iop == 0x0f) | |
| 1280 pc.Iop2 += popnd1.base.val; | |
| 1281 else | |
| 1282 pc.Iop += popnd2.base.val; | |
| 1283 debug { | |
| 1284 auchOpcode[usIdx-1] += popnd2.base.val; | |
| 1285 } | |
| 1286 } | |
| 1287 else | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1288 { |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1289 debug asm_make_modrm_byte( |
| 0 | 1290 ///debug { |
| 1291 auchOpcode, &usIdx, | |
| 1292 ///} | |
| 1293 pc, | |
| 1294 ptb.pptb1.usFlags, | |
| 1295 popnd1, popnd2); | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1296 else asm_make_modrm_byte( |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1297 pc, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1298 ptb.pptb1.usFlags, |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1299 popnd1, popnd2); |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
1300 } |
| 0 | 1301 popndTmp = popnd3; |
| 1302 aoptyTmp = aoptyTable3; | |
| 1303 uSizemaskTmp = cast(ushort)uSizemaskTable3; | |
| 1304 } | |
| 1305 goto L1; | |
| 1306 } | |
| 1307 L2: | |
| 1308 | |
| 1309 if ((pc.Iop & 0xF8) == 0xD8 && | |
| 1310 ADDFWAIT() && | |
| 1311 !(ptb.pptb0.usFlags & _nfwait)) | |
| 1312 pc.Iflags |= CF.CFwait; | |
| 1313 else if ((ptb.pptb0.usFlags & _fwait) && | |
| 1314 config.target_cpu >= TARGET.TARGET_80386) | |
| 1315 pc.Iflags |= CF.CFwait; | |
| 1316 | |
| 1317 debug { | |
| 1318 if (debuga) | |
| 1319 { | |
| 1320 uint u; | |
| 1321 | |
| 1322 for (u = 0; u < usIdx; u++) | |
| 1323 printf(" %02X", auchOpcode[u]); | |
| 1324 | |
| 1325 printf("\t%s\t", asm_opstr(pop)); | |
| 1326 if (popnd1) | |
| 1327 asm_output_popnd(popnd1); | |
| 1328 if (popnd2) { | |
| 1329 printf(","); | |
| 1330 asm_output_popnd(popnd2); | |
| 1331 } | |
| 1332 if (popnd3) { | |
| 1333 printf(","); | |
| 1334 asm_output_popnd(popnd3); | |
| 1335 } | |
| 1336 printf("\n"); | |
| 1337 } | |
| 1338 } | |
| 1339 | |
| 1340 pc = cat(pcPrefix, pc); | |
| 1341 pc = asm_genloc(loc, pc); | |
| 1342 return pc; | |
| 1343 } | |
| 1344 | |
| 1345 void asm_token_trans(Token* tok) | |
| 1346 { | |
| 1347 tok_value = TOK.TOKeof; | |
| 1348 | |
| 1349 if (tok) | |
| 1350 { | |
| 1351 tok_value = tok.value; | |
| 1352 if (tok_value == TOK.TOKidentifier) | |
| 1353 { | |
| 1354 string id = tok.ident.toChars(); | |
| 1355 size_t len = id.length; | |
| 1356 if (len < 20) | |
| 1357 { | |
| 1358 ASMTK asmtk = cast(ASMTK) binary(toStringz(id), apszAsmtk.ptr, ASMTK.ASMTKmax); | |
| 1359 if (cast(int)asmtk >= 0) | |
| 1360 tok_value = cast(TOK)(asmtk + TOK.TOKMAX + 1); | |
| 1361 } | |
| 1362 } | |
| 1363 } | |
| 1364 } | |
| 1365 | |
| 1366 void asm_token() | |
| 1367 { | |
| 1368 if (asmtok) | |
| 1369 asmtok = asmtok.next; | |
| 1370 | |
| 1371 asm_token_trans(asmtok); | |
| 1372 } | |
| 1373 | |
| 1374 | |
| 1375 /********************** | |
| 1376 * If c is a power of 2, return that power else -1. | |
| 1377 */ | |
| 1378 | |
| 1379 int ispow2(ulong c) | |
| 1380 { | |
| 1381 int i; | |
| 1382 | |
| 1383 if (c == 0 || (c & (c - 1))) | |
| 1384 i = -1; | |
| 1385 else | |
| 1386 for (i = 0; c >>= 1; i++) { | |
| 1387 ; | |
| 1388 } | |
| 1389 | |
| 1390 return i; | |
| 1391 } | |
| 1392 | |
| 1393 // Error numbers | |
| 1394 enum ASMERRMSGS | |
| 1395 { | |
| 1396 EM_bad_float_op, | |
| 1397 EM_bad_addr_mode, | |
| 1398 EM_align, | |
| 1399 EM_opcode_exp, | |
| 1400 EM_prefix, | |
| 1401 EM_eol, | |
| 1402 EM_bad_operand, | |
| 1403 EM_bad_integral_operand, | |
| 1404 EM_ident_exp, | |
| 1405 EM_not_struct, | |
| 1406 EM_nops_expected, | |
| 1407 EM_bad_op, | |
| 1408 EM_const_init, | |
| 1409 EM_undefined, | |
| 1410 EM_pointer, | |
| 1411 EM_colon, | |
| 1412 EM_rbra, | |
| 1413 EM_rpar, | |
| 1414 EM_ptr_exp, | |
| 1415 EM_num, | |
| 1416 EM_float, | |
| 1417 EM_char, | |
| 1418 EM_label_expected, | |
| 1419 EM_uplevel, | |
| 1420 EM_type_as_operand, | |
| 1421 } | |
| 1422 | |
| 1423 mixin(BringToCurrentScope!(ASMERRMSGS)); | |
| 1424 | |
| 1425 string[] asmerrmsgs = | |
| 1426 [ | |
| 1427 "unknown operand for floating point instruction", | |
| 1428 "bad addr mode", | |
| 1429 "align %d must be a power of 2", | |
| 1430 "opcode expected, not %s", | |
| 1431 "prefix", | |
| 1432 "end of instruction", | |
| 1433 "bad operand", | |
| 1434 "bad integral operand", | |
| 1435 "identifier expected", | |
| 1436 "not struct", | |
| 1437 "nops expected", | |
| 1438 "bad type/size of operands '%s'", | |
| 1439 "constant initializer expected", | |
| 1440 "undefined identifier '%s'", | |
| 1441 "pointer", | |
| 1442 "colon", | |
| 1443 "] expected instead of '%s'", | |
| 1444 ") expected instead of '%s'", | |
| 1445 "ptr expected", | |
| 1446 "integer expected", | |
| 1447 "floating point expected", | |
| 1448 "character is truncated", | |
| 1449 "label expected", | |
| 1450 "uplevel nested reference to variable %s", | |
| 1451 "cannot use type %s as an operand" | |
| 1452 ]; | |
| 1453 | |
| 1454 void asmerr(T...)(int errnum, T t) | |
| 1455 { | |
| 1456 string format = asmerrmsgs[errnum]; | |
| 1457 asmerr(format, t); | |
| 1458 } | |
| 1459 | |
| 1460 void asmerr(T...)(string format, T t) | |
| 1461 { | |
| 1462 string p = asmstate.loc.toChars(); | |
| 1463 if (p.length != 0) | |
| 1464 writef("%s: ", p); | |
| 1465 | |
| 1466 writefln(format, t); | |
| 1467 | |
| 1468 longjmp(asmstate.env,1); | |
| 1469 } | |
| 1470 | |
| 1471 PTRNTAB asm_classify(OP* pop, OPND* popnd1, OPND* popnd2, OPND* popnd3, uint* pusNumops) | |
| 1472 { | |
| 1473 uint usNumops; | |
| 1474 uint usActual; | |
| 1475 PTRNTAB ptbRet = { null }; | |
| 1476 opflag_t usFlags1 = 0 ; | |
| 1477 opflag_t usFlags2 = 0; | |
| 1478 opflag_t usFlags3 = 0; | |
| 1479 | |
| 1480 PTRNTAB1 *pptb1; | |
| 1481 PTRNTAB2 *pptb2; | |
| 1482 PTRNTAB3 *pptb3; | |
| 1483 | |
| 1484 char bFake = false; | |
| 1485 | |
| 1486 ubyte bMatch1, bMatch2, bMatch3, bRetry = false; | |
| 1487 | |
| 1488 // How many arguments are there? the parser is strictly left to right | |
| 1489 // so this should work. | |
| 1490 | |
| 1491 if (!popnd1) | |
| 1492 usNumops = 0; | |
| 1493 else | |
| 1494 { | |
| 1495 popnd1.usFlags = usFlags1 = asm_determine_operand_flags(popnd1); | |
| 1496 if (!popnd2) | |
| 1497 usNumops = 1; | |
| 1498 else | |
| 1499 { | |
| 1500 popnd2.usFlags = usFlags2 = asm_determine_operand_flags(popnd2); | |
| 1501 if (!popnd3) | |
| 1502 usNumops = 2; | |
| 1503 else | |
| 1504 { | |
| 1505 popnd3.usFlags = usFlags3 = asm_determine_operand_flags(popnd3); | |
| 1506 usNumops = 3; | |
| 1507 } | |
| 1508 } | |
| 1509 } | |
| 1510 | |
| 1511 // Now check to insure that the number of operands is correct | |
| 1512 usActual = (pop.usNumops & IT.ITSIZE); | |
| 1513 if (usActual != usNumops && asmstate.ucItype != IT.ITopt && | |
| 1514 asmstate.ucItype != IT.ITfloat) | |
| 1515 { | |
| 1516 PARAM_ERROR: | |
| 1517 asmerr(ASMERRMSGS.EM_nops_expected, usActual, asm_opstr(pop), usNumops); | |
| 1518 } | |
| 1519 *pusNumops = usNumops; | |
| 1520 // | |
| 1521 // The number of arguments matches, now check to find the opcode | |
| 1522 // in the associated opcode table | |
| 1523 // | |
| 1524 RETRY: | |
| 1525 //printf("usActual = %d\n", usActual); | |
| 1526 switch (usActual) | |
| 1527 { | |
| 1528 case 0: | |
| 1529 ptbRet = pop.ptb ; | |
| 1530 goto RETURN_IT; | |
| 1531 | |
| 1532 case 1: | |
| 1533 //printf("usFlags1 = "); asm_output_flags(usFlags1); printf("\n"); | |
| 1534 for (pptb1 = pop.ptb.pptb1; pptb1.usOpcode != ASM_END; | |
| 1535 pptb1++) | |
| 1536 { | |
| 1537 //printf("table = "); asm_output_flags(pptb1.usOp1); printf("\n"); | |
| 1538 bMatch1 = asm_match_flags(usFlags1, pptb1.usOp1); | |
| 1539 if (bMatch1) | |
| 1540 { if (pptb1.usOpcode == 0x68 && | |
| 1541 I32 && | |
| 1542 pptb1.usOp1 == _imm16 | |
| 1543 ) | |
| 1544 // Don't match PUSH imm16 in 32 bit code | |
| 1545 continue; | |
| 1546 break; | |
| 1547 } | |
| 1548 if ((asmstate.ucItype == IT.ITimmed) && | |
| 1549 asm_match_flags(usFlags1, | |
| 1550 CONSTRUCT_FLAGS(_8 | _16 | _32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, | |
| 1551 0)) && | |
| 1552 popnd1.disp == pptb1.usFlags) | |
| 1553 break; | |
| 1554 if ((asmstate.ucItype == IT.ITopt || | |
| 1555 asmstate.ucItype == IT.ITfloat) && | |
| 1556 !usNumops && | |
| 1557 !pptb1.usOp1) | |
| 1558 { | |
| 1559 if (usNumops > 1) | |
| 1560 goto PARAM_ERROR; | |
| 1561 break; | |
| 1562 } | |
| 1563 } | |
| 1564 if (pptb1.usOpcode == ASM_END) | |
| 1565 { | |
| 1566 debug { | |
| 1567 if (debuga) | |
| 1568 { | |
| 1569 printf("\t%s\t", asm_opstr(pop)); | |
| 1570 if (popnd1) | |
| 1571 asm_output_popnd(popnd1); | |
| 1572 if (popnd2) { | |
| 1573 printf(","); | |
| 1574 asm_output_popnd(popnd2); | |
| 1575 } | |
| 1576 if (popnd3) { | |
| 1577 printf(","); | |
| 1578 asm_output_popnd(popnd3); | |
| 1579 } | |
| 1580 printf("\n"); | |
| 1581 | |
| 1582 printf("OPCODE mism = "); | |
| 1583 if (popnd1) | |
| 1584 asm_output_flags(popnd1.usFlags); | |
| 1585 else | |
| 1586 printf("NONE"); | |
| 1587 printf("\n"); | |
| 1588 } | |
| 1589 } | |
| 1590 TYPE_SIZE_ERROR: | |
| 1591 if (popnd1 && ASM_GET_aopty(popnd1.usFlags) != ASM_OPERAND_TYPE._reg) | |
| 1592 { | |
| 1593 usFlags1 = popnd1.usFlags |= _anysize; | |
| 1594 if (asmstate.ucItype == IT.ITjump) | |
| 1595 { | |
| 1596 if (bRetry && popnd1.s && !popnd1.s.isLabel()) | |
| 1597 { | |
| 1598 asmerr(ASMERRMSGS.EM_label_expected, popnd1.s.toChars()); | |
| 1599 } | |
| 1600 | |
| 1601 popnd1.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, _fanysize); | |
| 1602 } | |
| 1603 } | |
| 1604 if (popnd2 && ASM_GET_aopty(popnd2.usFlags) != ASM_OPERAND_TYPE._reg) { | |
| 1605 usFlags2 = popnd2.usFlags |= (_anysize); | |
| 1606 if (asmstate.ucItype == IT.ITjump) | |
| 1607 popnd2.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, | |
| 1608 _fanysize); | |
| 1609 } | |
| 1610 if (popnd3 && ASM_GET_aopty(popnd3.usFlags) != ASM_OPERAND_TYPE._reg) { | |
| 1611 usFlags3 = popnd3.usFlags |= (_anysize); | |
| 1612 if (asmstate.ucItype == IT.ITjump) | |
| 1613 popnd3.usFlags |= CONSTRUCT_FLAGS(0, 0, 0, | |
| 1614 _fanysize); | |
| 1615 } | |
| 1616 if (bRetry) | |
| 1617 { | |
| 1618 asmerr(ASMERRMSGS.EM_bad_op, fromStringz(asm_opstr(pop))); // illegal type/size of operands | |
| 1619 } | |
| 1620 bRetry = true; | |
| 1621 goto RETRY; | |
| 1622 } | |
| 1623 ptbRet.pptb1 = pptb1; | |
| 1624 goto RETURN_IT; | |
| 1625 | |
| 1626 case 2: | |
| 1627 //printf("usFlags1 = "); asm_output_flags(usFlags1); printf(" "); | |
| 1628 //printf("usFlags2 = "); asm_output_flags(usFlags2); printf("\n"); | |
| 1629 for (pptb2 = pop.ptb.pptb2; | |
| 1630 pptb2.usOpcode != ASM_END; | |
| 1631 pptb2++) | |
| 1632 { | |
| 1633 //printf("table1 = "); asm_output_flags(pptb2.usOp1); printf(" "); | |
| 1634 //printf("table2 = "); asm_output_flags(pptb2.usOp2); printf("\n"); | |
| 1635 bMatch1 = asm_match_flags(usFlags1, pptb2.usOp1); | |
| 1636 bMatch2 = asm_match_flags(usFlags2, pptb2.usOp2); | |
| 1637 //printf("match1 = %d, match2 = %d\n",bMatch1,bMatch2); | |
| 1638 if (bMatch1 && bMatch2) { | |
| 1639 | |
| 1640 //printf("match\n"); | |
| 1641 | |
| 1642 // OK, if they both match and the first op in the table is not AL | |
| 1643 // or size of 8 and the second is immediate 8, | |
| 1644 // then check to see if the constant | |
| 1645 // is a signed 8 bit constant. If so, then do not match, otherwise match | |
| 1646 // | |
| 1647 if (!bRetry && | |
| 1648 !((ASM_GET_uSizemask(pptb2.usOp1) & _8) || | |
| 1649 (ASM_GET_uRegmask(pptb2.usOp1) & _al)) && | |
| 1650 (ASM_GET_aopty(pptb2.usOp2) == ASM_OPERAND_TYPE._imm) && | |
| 1651 (ASM_GET_uSizemask(pptb2.usOp2) & _8)) | |
| 1652 { | |
| 1653 if (popnd2.disp <= char.max) | |
| 1654 break; | |
| 1655 else | |
| 1656 bFake = true; | |
| 1657 } | |
| 1658 else | |
| 1659 break; | |
| 1660 } | |
| 1661 if (asmstate.ucItype == IT.ITopt || asmstate.ucItype == IT.ITfloat) | |
| 1662 { | |
| 1663 switch (usNumops) | |
| 1664 { | |
| 1665 case 0: | |
| 1666 if (!pptb2.usOp1) | |
| 1667 goto Lfound2; | |
| 1668 break; | |
| 1669 case 1: | |
| 1670 if (bMatch1 && !pptb2.usOp2) | |
| 1671 goto Lfound2; | |
| 1672 break; | |
| 1673 case 2: | |
| 1674 break; | |
| 1675 default: | |
| 1676 goto PARAM_ERROR; | |
| 1677 } | |
| 1678 } | |
| 1679 static if (false) { | |
| 1680 if (asmstate.ucItype == IT.ITshift && | |
| 1681 !pptb2.usOp2 && | |
| 1682 bMatch1 && popnd2.disp == 1 && | |
| 1683 asm_match_flags(usFlags2, | |
| 1684 CONSTRUCT_FLAGS(_8|_16|_32, ASM_OPERAND_TYPE._imm,ASM_MODIFIERS._normal,0)) | |
| 1685 ) | |
| 1686 { | |
| 1687 break; | |
| 1688 } | |
| 1689 } | |
| 1690 } | |
| 1691 Lfound2: | |
| 1692 if (pptb2.usOpcode == ASM_END) | |
| 1693 { | |
| 1694 debug { | |
| 1695 if (debuga) | |
| 1696 { | |
| 1697 printf("\t%s\t", asm_opstr(pop)); | |
| 1698 if (popnd1) | |
| 1699 asm_output_popnd(popnd1); | |
| 1700 if (popnd2) { | |
| 1701 printf(","); | |
| 1702 asm_output_popnd(popnd2); | |
| 1703 } | |
| 1704 if (popnd3) { | |
| 1705 printf(","); | |
| 1706 asm_output_popnd(popnd3); | |
| 1707 } | |
| 1708 printf("\n"); | |
| 1709 | |
| 1710 printf("OPCODE mismatch = "); | |
| 1711 if (popnd1) | |
| 1712 asm_output_flags(popnd1.usFlags); | |
| 1713 else | |
| 1714 printf("NONE"); | |
| 1715 printf( " Op2 = "); | |
| 1716 if (popnd2) | |
| 1717 asm_output_flags(popnd2.usFlags); | |
| 1718 else | |
| 1719 printf("NONE"); | |
| 1720 printf("\n"); | |
| 1721 } | |
| 1722 } | |
| 1723 goto TYPE_SIZE_ERROR; | |
| 1724 } | |
| 1725 ptbRet.pptb2 = pptb2; | |
| 1726 goto RETURN_IT; | |
| 1727 | |
| 1728 case 3: | |
| 1729 for (pptb3 = pop.ptb.pptb3; | |
| 1730 pptb3.usOpcode != ASM_END; | |
| 1731 pptb3++) | |
| 1732 { | |
| 1733 bMatch1 = asm_match_flags(usFlags1, pptb3.usOp1); | |
| 1734 bMatch2 = asm_match_flags(usFlags2, pptb3.usOp2); | |
| 1735 bMatch3 = asm_match_flags(usFlags3, pptb3.usOp3); | |
| 1736 if (bMatch1 && bMatch2 && bMatch3) | |
| 1737 goto Lfound3; | |
| 1738 | |
| 1739 if (asmstate.ucItype == IT.ITopt) | |
| 1740 { | |
| 1741 switch (usNumops) | |
| 1742 { | |
| 1743 case 0: | |
| 1744 if (!pptb3.usOp1) | |
| 1745 goto Lfound3; | |
| 1746 break; | |
| 1747 case 1: | |
| 1748 if (bMatch1 && !pptb3.usOp2) | |
| 1749 goto Lfound3; | |
| 1750 break; | |
| 1751 case 2: | |
| 1752 if (bMatch1 && bMatch2 && !pptb3.usOp3) | |
| 1753 goto Lfound3; | |
| 1754 break; | |
| 1755 case 3: | |
| 1756 break; | |
| 1757 default: | |
| 1758 goto PARAM_ERROR; | |
| 1759 } | |
| 1760 } | |
| 1761 } | |
| 1762 Lfound3: | |
| 1763 if (pptb3.usOpcode == ASM_END) | |
| 1764 { | |
| 1765 debug { | |
| 1766 if (debuga) | |
| 1767 { | |
| 1768 printf("\t%s\t", asm_opstr(pop)); | |
| 1769 if (popnd1) | |
| 1770 asm_output_popnd(popnd1); | |
| 1771 if (popnd2) { | |
| 1772 printf(","); | |
| 1773 asm_output_popnd(popnd2); | |
| 1774 } | |
| 1775 if (popnd3) { | |
| 1776 printf(","); | |
| 1777 asm_output_popnd(popnd3); | |
| 1778 } | |
| 1779 printf("\n"); | |
| 1780 | |
| 1781 printf("OPCODE mismatch = "); | |
| 1782 if (popnd1) | |
| 1783 asm_output_flags(popnd1.usFlags); | |
| 1784 else | |
| 1785 printf("NONE"); | |
| 1786 printf( " Op2 = "); | |
| 1787 if (popnd2) | |
| 1788 asm_output_flags(popnd2.usFlags); | |
| 1789 else | |
| 1790 printf("NONE"); | |
| 1791 if (popnd3) | |
| 1792 asm_output_flags(popnd3.usFlags); | |
| 1793 printf("\n"); | |
| 1794 } | |
| 1795 } | |
| 1796 goto TYPE_SIZE_ERROR; | |
| 1797 } | |
| 1798 | |
| 1799 ptbRet.pptb3 = pptb3; | |
| 1800 goto RETURN_IT; | |
| 1801 } | |
| 1802 | |
| 1803 RETURN_IT: | |
| 1804 if (bRetry && !bFake) | |
| 1805 { | |
| 1806 asmerr(ASMERRMSGS.EM_bad_op, fromStringz(asm_opstr(pop))); | |
| 1807 } | |
| 1808 return ptbRet; | |
| 1809 } | |
| 1810 | |
| 1811 /******************************* | |
| 1812 * start of inline assemblers expression parser | |
| 1813 * NOTE: functions in call order instead of alphabetical | |
| 1814 */ | |
| 1815 | |
| 1816 /******************************************* | |
| 1817 * Parse DA expression | |
| 1818 * | |
| 1819 * Very limited define address to place a code | |
| 1820 * address in the assembly | |
| 1821 * Problems: | |
| 1822 * o Should use dw offset and dd offset instead, | |
| 1823 * for near/far support. | |
| 1824 * o Should be able to add an offset to the label address. | |
| 1825 * o Blocks addressed by DA should get their Bpred set correctly | |
| 1826 * for optimizer. | |
| 1827 */ | |
| 1828 | |
| 1829 code* asm_da_parse(OP* pop) | |
| 1830 { | |
| 1831 code* clst = null; | |
| 1832 elem* e; | |
| 1833 | |
| 1834 while (1) | |
| 1835 { | |
| 1836 code* c; | |
| 1837 | |
| 1838 if (tok_value == TOK.TOKidentifier) | |
| 1839 { | |
| 1840 LabelDsymbol label = asmstate.sc.func.searchLabel(asmtok.ident); | |
| 1841 if (!label) | |
| 1842 error(asmstate.loc, "label '%s' not found\n", asmtok.ident.toChars()); | |
| 1843 | |
| 1844 c = code_calloc(); | |
| 1845 c.Iop = ASM; | |
| 1846 c.Iflags = CF.CFaddrsize; | |
| 1847 c.IFL1 = FL.FLblockoff; | |
| 1848 c.IEVlsym1() = label; | |
| 1849 c = asm_genloc(asmstate.loc, c); | |
| 1850 clst = cat(clst,c); | |
| 1851 } | |
| 1852 else | |
| 1853 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 1854 | |
| 1855 asm_token(); | |
| 1856 if (tok_value != TOK.TOKcomma) | |
| 1857 break; | |
| 1858 | |
| 1859 asm_token(); | |
| 1860 } | |
| 1861 | |
| 1862 asmstate.statement.regs |= mES | ALLREGS; | |
| 1863 asmstate.bReturnax = true; | |
| 1864 | |
| 1865 return clst; | |
| 1866 } | |
| 1867 | |
| 1868 /******************************************* | |
| 1869 * Parse DB, DW, DD, DQ and DT expressions. | |
| 1870 */ | |
| 1871 | |
| 1872 code* asm_db_parse(OP* pop) | |
| 1873 { | |
| 1874 uint usSize; | |
| 1875 uint usMaxbytes; | |
| 1876 uint usBytes; | |
| 1877 | |
| 1878 union DT | |
| 1879 { | |
| 1880 targ_ullong ul; | |
| 1881 targ_float f; | |
| 1882 targ_double d; | |
| 1883 targ_ldouble ld; | |
| 1884 char value[10]; | |
| 1885 } | |
| 1886 | |
| 1887 DT dt; | |
| 1888 | |
| 1889 code* c; | |
| 1890 uint op; | |
| 1891 static ubyte[7] opsize = [ 1,2,4,8,4,8,10 ]; | |
| 1892 | |
| 1893 op = pop.usNumops & IT.ITSIZE; | |
| 1894 usSize = opsize[op]; | |
| 1895 | |
| 1896 usBytes = 0; | |
| 1897 usMaxbytes = 0; | |
| 1898 c = code_calloc(); | |
| 1899 c.Iop = ASM; | |
| 1900 | |
| 1901 while (1) | |
| 1902 { | |
| 1903 size_t len; | |
| 1904 ubyte* q; | |
| 1905 | |
| 1906 if (usBytes+usSize > usMaxbytes) | |
| 1907 { | |
| 1908 usMaxbytes = usBytes + usSize + 10; | |
|
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
1909 c.IEV1.as.bytes = cast(char*)realloc(c.IEV1.as.bytes,usMaxbytes); |
| 0 | 1910 } |
| 1911 switch (tok_value) | |
| 1912 { | |
| 1913 case TOK.TOKint32v: | |
| 1914 dt.ul = asmtok.int32value; | |
| 1915 goto L1; | |
| 1916 case TOK.TOKuns32v: | |
| 1917 dt.ul = asmtok.uns32value; | |
| 1918 goto L1; | |
| 1919 case TOK.TOKint64v: | |
| 1920 dt.ul = asmtok.int64value; | |
| 1921 goto L1; | |
| 1922 case TOK.TOKuns64v: | |
| 1923 dt.ul = asmtok.uns64value; | |
| 1924 goto L1; | |
| 1925 L1: | |
| 1926 switch (op) | |
| 1927 { | |
| 1928 case OP_DB.OPdb: | |
| 1929 case OP_DB.OPds: | |
| 1930 case OP_DB.OPdi: | |
| 1931 case OP_DB.OPdl: | |
| 1932 break; | |
| 1933 default: | |
| 1934 asmerr(ASMERRMSGS.EM_float); | |
| 1935 } | |
| 1936 goto L2; | |
| 1937 | |
| 1938 case TOK.TOKfloat32v: | |
| 1939 case TOK.TOKfloat64v: | |
| 1940 case TOK.TOKfloat80v: | |
| 1941 switch (op) | |
| 1942 { | |
| 1943 case OP_DB.OPdf: | |
| 1944 dt.f = asmtok.float80value; | |
| 1945 break; | |
| 1946 case OP_DB.OPdd: | |
| 1947 dt.d = asmtok.float80value; | |
| 1948 break; | |
| 1949 case OP_DB.OPde: | |
| 1950 dt.ld = asmtok.float80value; | |
| 1951 break; | |
| 1952 default: | |
| 1953 asmerr(ASMERRMSGS.EM_num); | |
| 1954 } | |
| 1955 goto L2; | |
| 1956 | |
| 1957 L2: | |
| 1958 memcpy(c.IEV1.as.bytes + usBytes,&dt,usSize); | |
| 1959 usBytes += usSize; | |
| 1960 break; | |
| 1961 | |
| 1962 case TOK.TOKstring: | |
| 1963 len = asmtok.len; | |
| 1964 q = cast(ubyte*)asmtok.ustring; | |
| 1965 L3: | |
| 1966 if (len) | |
| 1967 { | |
| 1968 usMaxbytes += len * usSize; | |
|
5
63623152e82a
Fixed memory corruption bug which was introduced when attempting to restore GC functionality
dkoroskin <>
parents:
4
diff
changeset
|
1969 c.IEV1.as.bytes = cast(char*)realloc(c.IEV1.as.bytes,usMaxbytes); |
| 0 | 1970 memcpy(c.IEV1.as.bytes + usBytes,asmtok.ustring,len); |
| 1971 | |
| 1972 char* p = c.IEV1.as.bytes + usBytes; | |
| 1973 for (size_t i = 0; i < len; i++) | |
| 1974 { | |
| 1975 // Be careful that this works | |
| 1976 memset(p, 0, usSize); | |
| 1977 switch (op) | |
| 1978 { | |
| 1979 case OP_DB.OPdb: | |
| 1980 *p = cast(ubyte)*q; | |
| 1981 if (*p != *q) | |
| 1982 asmerr(ASMERRMSGS.EM_char); | |
| 1983 break; | |
| 1984 | |
| 1985 case OP_DB.OPds: | |
| 1986 *cast(short*)p = *cast(ubyte*)q; | |
| 1987 if (*cast(short*)p != *q) | |
| 1988 asmerr(ASMERRMSGS.EM_char); | |
| 1989 break; | |
| 1990 | |
| 1991 case OP_DB.OPdi: | |
| 1992 case OP_DB.OPdl: | |
| 1993 *cast(int*)p = *q; | |
| 1994 break; | |
| 1995 | |
| 1996 default: | |
| 1997 asmerr(ASMERRMSGS.EM_float); | |
| 1998 } | |
| 1999 q++; | |
| 2000 p += usSize; | |
| 2001 } | |
| 2002 | |
| 2003 usBytes += len * usSize; | |
| 2004 } | |
| 2005 break; | |
| 2006 | |
| 2007 case TOK.TOKidentifier: | |
| 2008 { | |
| 2009 Expression e = new IdentifierExp(asmstate.loc, asmtok.ident); | |
| 2010 e = e.semantic(asmstate.sc); | |
| 2011 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 2012 if (e.op == TOK.TOKint64) | |
| 2013 { | |
| 2014 dt.ul = e.toInteger(); | |
| 2015 goto L2; | |
| 2016 } | |
| 2017 else if (e.op == TOK.TOKfloat64) | |
| 2018 { | |
| 2019 switch (op) | |
| 2020 { | |
| 2021 case OP_DB.OPdf: | |
| 2022 dt.f = e.toReal(); | |
| 2023 break; | |
| 2024 case OP_DB.OPdd: | |
| 2025 dt.d = e.toReal(); | |
| 2026 break; | |
| 2027 case OP_DB.OPde: | |
| 2028 dt.ld = e.toReal(); | |
| 2029 break; | |
| 2030 default: | |
| 2031 asmerr(ASMERRMSGS.EM_num); | |
| 2032 } | |
| 2033 goto L2; | |
| 2034 } | |
| 2035 else if (e.op == TOK.TOKstring) | |
| 2036 { | |
| 2037 StringExp se = cast(StringExp)e; | |
| 2038 q = cast(ubyte*)se.string_; | |
| 2039 len = se.len; | |
| 2040 goto L3; | |
| 2041 } | |
| 2042 goto Ldefault; | |
| 2043 } | |
| 2044 | |
| 2045 default: | |
| 2046 Ldefault: | |
| 2047 asmerr(ASMERRMSGS.EM_const_init); // constant initializer | |
| 2048 break; | |
| 2049 } | |
| 2050 c.IEV1.as.len = usBytes; | |
| 2051 | |
| 2052 asm_token(); | |
| 2053 if (tok_value != TOK.TOKcomma) | |
| 2054 break; | |
| 2055 | |
| 2056 asm_token(); | |
| 2057 } | |
| 2058 | |
| 2059 c = asm_genloc(asmstate.loc, c); | |
| 2060 | |
| 2061 asmstate.statement.regs |= /* mES| */ ALLREGS; | |
| 2062 asmstate.bReturnax = true; | |
| 2063 | |
| 2064 return c; | |
| 2065 } | |
| 2066 | |
| 2067 /********************************** | |
| 2068 * Parse and get integer expression. | |
| 2069 */ | |
| 2070 | |
| 2071 int asm_getnum() | |
| 2072 { | |
| 2073 int v; | |
| 2074 long i; | |
| 2075 | |
| 2076 switch (tok_value) | |
| 2077 { | |
| 2078 case TOK.TOKint32v: | |
| 2079 v = asmtok.int32value; | |
| 2080 break; | |
| 2081 | |
| 2082 case TOK.TOKuns32v: | |
| 2083 v = asmtok.uns32value; | |
| 2084 break; | |
| 2085 | |
| 2086 case TOK.TOKidentifier: | |
| 2087 Expression e = new IdentifierExp(asmstate.loc, asmtok.ident); | |
| 2088 e = e.semantic(asmstate.sc); | |
| 2089 e = e.optimize(WANT.WANTvalue | WANT.WANTinterpret); | |
| 2090 i = e.toInteger(); | |
| 2091 v = cast(int) i; | |
| 2092 if (v != i) | |
| 2093 asmerr(ASMERRMSGS.EM_num); | |
| 2094 break; | |
| 2095 | |
| 2096 default: | |
| 2097 asmerr(ASMERRMSGS.EM_num); | |
| 2098 break; | |
| 2099 } | |
| 2100 | |
| 2101 asm_token(); | |
| 2102 | |
| 2103 return v; | |
| 2104 } | |
| 2105 | |
| 2106 | |
| 2107 /******************************* | |
| 2108 */ | |
| 2109 | |
| 2110 OPND* asm_cond_exp() | |
| 2111 { | |
| 2112 OPND* o1; | |
| 2113 OPND* o2; | |
| 2114 OPND* o3; | |
| 2115 | |
| 2116 //printf("asm_cond_exp()\n"); | |
| 2117 o1 = asm_log_or_exp(); | |
| 2118 if (tok_value == TOK.TOKquestion) | |
| 2119 { | |
| 2120 asm_token(); | |
| 2121 o2 = asm_cond_exp(); | |
| 2122 asm_token(); | |
| 2123 asm_chktok(TOK.TOKcolon, ASMERRMSGS.EM_colon); | |
| 2124 o3 = asm_cond_exp(); | |
| 2125 o1 = (o1.disp) ? o2 : o3; | |
| 2126 } | |
| 2127 | |
| 2128 return o1; | |
| 2129 } | |
| 2130 | |
| 2131 regm_t asm_modify_regs(PTRNTAB ptb, OPND* popnd1, OPND* popnd2) | |
| 2132 { | |
| 2133 regm_t usRet = 0; | |
| 2134 | |
| 2135 switch (ptb.pptb0.usFlags & MOD_MASK) { | |
| 2136 case _modsi: | |
| 2137 usRet |= mSI; | |
| 2138 break; | |
| 2139 case _moddx: | |
| 2140 usRet |= mDX; | |
| 2141 break; | |
| 2142 case _mod2: | |
| 2143 if (popnd2) | |
| 2144 usRet |= asm_modify_regs(ptb, popnd2, null); | |
| 2145 break; | |
| 2146 case _modax: | |
| 2147 usRet |= mAX; | |
| 2148 break; | |
| 2149 case _modnot1: | |
| 2150 popnd1 = null; | |
| 2151 break; | |
| 2152 case _modaxdx: | |
| 2153 usRet |= (mAX | mDX); | |
| 2154 break; | |
| 2155 case _moddi: | |
| 2156 usRet |= mDI; | |
| 2157 break; | |
| 2158 case _modsidi: | |
| 2159 usRet |= (mSI | mDI); | |
| 2160 break; | |
| 2161 case _modcx: | |
| 2162 usRet |= mCX; | |
| 2163 break; | |
| 2164 case _modes: | |
| 2165 /*usRet |= mES;*/ | |
| 2166 break; | |
| 2167 case _modall: | |
| 2168 asmstate.bReturnax = true; | |
| 2169 return /*mES |*/ ALLREGS; | |
| 2170 case _modsiax: | |
| 2171 usRet |= (mSI | mAX); | |
| 2172 break; | |
| 2173 case _modsinot1: | |
| 2174 usRet |= mSI; | |
| 2175 popnd1 = null; | |
| 2176 break; | |
| 2177 default: | |
| 2178 break; /// | |
| 2179 } | |
| 2180 if (popnd1 && ASM_GET_aopty(popnd1.usFlags) == ASM_OPERAND_TYPE._reg) { | |
| 2181 switch (ASM_GET_amod(popnd1.usFlags)) { | |
| 2182 default: | |
| 2183 if (ASM_GET_uSizemask(popnd1.usFlags) == _8) { | |
| 2184 switch(popnd1.base.val) { | |
| 2185 case _AL: | |
| 2186 case _AH: | |
| 2187 usRet |= mAX; | |
| 2188 break; | |
| 2189 case _BL: | |
| 2190 case _BH: | |
| 2191 usRet |= mBX; | |
| 2192 break; | |
| 2193 case _CL: | |
| 2194 case _CH: | |
| 2195 usRet |= mCX; | |
| 2196 break; | |
| 2197 case _DL: | |
| 2198 case _DH: | |
| 2199 usRet |= mDX; | |
| 2200 break; | |
| 2201 } | |
| 2202 } | |
| 2203 else { | |
| 2204 switch (popnd1.base.val) { | |
| 2205 case _AX: | |
| 2206 usRet |= mAX; | |
| 2207 break; | |
| 2208 case _BX: | |
| 2209 usRet |= mBX; | |
| 2210 break; | |
| 2211 case _CX: | |
| 2212 usRet |= mCX; | |
| 2213 break; | |
| 2214 case _DX: | |
| 2215 usRet |= mDX; | |
| 2216 break; | |
| 2217 case _SI: | |
| 2218 usRet |= mSI; | |
| 2219 break; | |
| 2220 case _DI: | |
| 2221 usRet |= mDI; | |
| 2222 break; | |
| 2223 default: | |
| 2224 break; /// | |
| 2225 } | |
| 2226 } | |
| 2227 break; | |
| 2228 | |
| 2229 case ASM_MODIFIERS._rseg: | |
| 2230 //if (popnd1.base.val == _ES) | |
| 2231 //usRet |= mES; | |
| 2232 break; | |
| 2233 | |
| 2234 case ASM_MODIFIERS._rspecial: | |
| 2235 break; | |
| 2236 } | |
| 2237 } | |
| 2238 if (usRet & mAX) | |
| 2239 asmstate.bReturnax = true; | |
| 2240 | |
| 2241 return usRet; | |
| 2242 } | |
| 2243 | |
| 2244 | |
| 2245 /**************************** | |
| 2246 * Fill in the modregrm and sib bytes of code. | |
| 2247 */ | |
| 2248 | |
| 2249 uint X(ubyte r1, ubyte r2) { | |
| 2250 return (((r1) * 16) + (r2)); | |
| 2251 } | |
| 2252 | |
| 2253 uint Y(ubyte r1) { | |
| 2254 return X(r1, 9); | |
| 2255 } | |
| 2256 | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2257 // Save a copy/pasted function |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2258 template Tuple(T...) { alias T Tuple; } |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2259 debug alias Tuple!(ubyte[], uint*) asm_make_modrm_args; |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2260 else alias Tuple!() asm_make_modrm_args; |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2261 |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2262 void asm_make_modrm_byte(asm_make_modrm_args ocidx, code *pc, ushort usFlags, OPND *popnd, OPND *popnd2) |
| 0 | 2263 { |
| 2264 /// #undef modregrm | |
|
20
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2265 debug alias ocidx[0] puchOpcode; |
|
1628b221808d
Fleshed out more unimplemented methods.
Robert Clipsham <robert@octarineparrot.com>
parents:
14
diff
changeset
|
2266 debug alias ocidx[1] pusIdx; |
| 0 | 2267 union MODRM_BYTE // mrmb |
| 2268 { | |
| 2269 struct MODRM | |
| 2270 { | |
| 2271 mixin(bitfields!( | |
| 2272 uint, "rm", 3, | |
| 2273 uint, "reg", 3, | |
| 2274 uint, "mod", 2)); | |
| 2275 } | |
| 2276 | |
| 2277 ubyte uchOpcode; | |
| 2278 MODRM modregrm; | |
| 2279 } | |
| 2280 | |
| 2281 union SIB_BYTE | |
| 2282 { | |
| 2283 struct SIB | |
| 2284 { | |
| 2285 | |
| 2286 mixin(bitfields!( | |
| 2287 uint, "base", 3, | |
| 2288 uint, "index", 3, | |
| 2289 uint, "ss", 2)); | |
| 2290 } | |
| 2291 | |
| 2292 ubyte uchOpcode; | |
| 2293 SIB sib; | |
| 2294 } | |
| 2295 | |
| 2296 | |
| 2297 MODRM_BYTE mrmb; | |
| 2298 SIB_BYTE sib; | |
| 2299 char bSib = false; | |
| 2300 char bDisp = false; | |
| 2301 char b32bit = false; | |
| 2302 ubyte* puc; | |
| 2303 char bModset = false; | |
| 2304 Dsymbol s; | |
| 2305 | |
| 2306 uint uSizemask = 0; | |
| 2307 ASM_OPERAND_TYPE aopty; | |
| 2308 ASM_MODIFIERS amod; | |
| 2309 ushort uRegmask; | |
| 2310 ubyte bOffsetsym = false; | |
| 2311 | |
| 2312 static if (false) { | |
| 2313 printf("asm_make_modrm_byte(usFlags = x%x)\n", usFlags); | |
| 2314 printf("op1: "); | |
| 2315 asm_output_flags(popnd.usFlags); | |
| 2316 if (popnd2) | |
| 2317 { | |
| 2318 printf(" op2: "); | |
| 2319 asm_output_flags(popnd2.usFlags); | |
| 2320 } | |
| 2321 printf("\n"); | |
| 2322 } | |
| 2323 | |
| 2324 uSizemask = ASM_GET_uSizemask(popnd.usFlags); | |
| 2325 aopty = ASM_GET_aopty(popnd.usFlags); | |
| 2326 amod = ASM_GET_amod(popnd.usFlags); | |
| 2327 uRegmask = ASM_GET_uRegmask(popnd.usFlags); | |
| 2328 s = popnd.s; | |
| 2329 if (s) | |
| 2330 { | |
| 2331 Declaration d = s.isDeclaration(); | |
| 2332 | |
| 2333 if (amod == ASM_MODIFIERS._fn16 && aopty == ASM_OPERAND_TYPE._rel && popnd2) | |
| 2334 { | |
| 2335 aopty = ASM_OPERAND_TYPE._m; | |
| 2336 goto L1; | |
| 2337 } | |
| 2338 | |
| 2339 if (amod == ASM_MODIFIERS._fn16 || amod == ASM_MODIFIERS._fn32) | |
| 2340 { | |
| 2341 pc.Iflags |= CF.CFoff; | |
| 2342 debug { | |
| 2343 puchOpcode[(*pusIdx)++] = 0; | |
| 2344 puchOpcode[(*pusIdx)++] = 0; | |
| 2345 } | |
| 2346 if (aopty == ASM_OPERAND_TYPE._m || aopty == ASM_OPERAND_TYPE._mnoi) | |
| 2347 { | |
| 2348 pc.IFL1 = FL.FLdata; | |
| 2349 pc.IEVdsym1() = d; | |
| 2350 pc.IEVoffset1() = 0; | |
| 2351 } | |
| 2352 else | |
| 2353 { | |
| 2354 if (aopty == ASM_OPERAND_TYPE._p) | |
| 2355 pc.Iflags |= CF.CFseg; | |
| 2356 | |
| 2357 debug if (aopty == ASM_OPERAND_TYPE._p || aopty == ASM_OPERAND_TYPE._rel) | |
| 2358 { | |
| 2359 puchOpcode[(*pusIdx)++] = 0; | |
| 2360 puchOpcode[(*pusIdx)++] = 0; | |
| 2361 } | |
| 2362 | |
| 2363 pc.IFL2 = FL.FLfunc; | |
| 2364 pc.IEVdsym2() = d; | |
| 2365 pc.IEVoffset2() = 0; | |
| 2366 //return; | |
| 2367 } | |
| 2368 } | |
| 2369 else | |
| 2370 { | |
| 2371 L1: | |
| 2372 LabelDsymbol label = s.isLabel(); | |
| 2373 if (label) | |
| 2374 { | |
| 2375 if (s == asmstate.psDollar) | |
| 2376 { | |
| 2377 pc.IFL1 = FL.FLconst; | |
| 2378 if (uSizemask & (_8 | _16)) | |
| 2379 pc.IEVint1() = popnd.disp; | |
| 2380 else if (uSizemask & _32) | |
| 2381 pc.IEVpointer1() = cast(targ_size_t) popnd.disp; | |
| 2382 } | |
| 2383 else | |
| 2384 { | |
| 2385 pc.IFL1 = FL.FLblockoff; | |
| 2386 pc.IEVlsym1() = label; | |
| 2387 } | |
| 2388 } | |
| 2389 else if (s == asmstate.psLocalsize) | |
| 2390 { | |
| 2391 pc.IFL1 = FL.FLlocalsize; | |
| 2392 pc.IEVdsym1() = null; | |
| 2393 pc.Iflags |= CF.CFoff; | |
| 2394 pc.IEVoffset1() = popnd.disp; | |
| 2395 } | |
| 2396 else if (s.isFuncDeclaration()) | |
| 2397 { | |
| 2398 pc.IFL1 = FL.FLfunc; | |
| 2399 pc.IEVdsym1() = d; | |
| 2400 pc.IEVoffset1() = popnd.disp; | |
| 2401 } | |
| 2402 else | |
| 2403 { | |
| 2404 debug if (debuga) | |
| 2405 printf("Setting up symbol %s\n", d.ident.toChars()); | |
| 2406 | |
| 2407 pc.IFL1 = FL.FLdsymbol; | |
| 2408 pc.IEVdsym1() = d; | |
| 2409 pc.Iflags |= CF.CFoff; | |
| 2410 pc.IEVoffset1() = popnd.disp; | |
| 2411 } | |
| 2412 } | |
| 2413 } | |
| 2414 | |
| 2415 mrmb.modregrm.reg = usFlags & NUM_MASK; | |
| 2416 | |
| 2417 if (s && (aopty == ASM_OPERAND_TYPE._m || aopty == ASM_OPERAND_TYPE._mnoi) && !s.isLabel()) | |
| 2418 { | |
| 2419 if (s == asmstate.psLocalsize) | |
| 2420 { | |
| 2421 DATA_REF: | |
| 2422 mrmb.modregrm.rm = BPRM; | |
| 2423 if (amod == ASM_MODIFIERS._addr16 || amod == ASM_MODIFIERS._addr32) | |
| 2424 mrmb.modregrm.mod = 0x2; | |
| 2425 else | |
| 2426 mrmb.modregrm.mod = 0x0; | |
| 2427 } | |
| 2428 else | |
| 2429 { | |
| 2430 Declaration d = s.isDeclaration(); | |
| 2431 assert(d); | |
| 2432 if (d.isDataseg() || d.isCodeseg()) | |
| 2433 { | |
| 2434 if (( I32 && amod == ASM_MODIFIERS._addr16) || | |
| 2435 (!I32 && amod == ASM_MODIFIERS._addr32)) | |
| 2436 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2437 goto DATA_REF; | |
| 2438 } | |
| 2439 mrmb.modregrm.rm = BPRM; | |
| 2440 mrmb.modregrm.mod = 0x2; | |
| 2441 } | |
| 2442 } | |
| 2443 | |
| 2444 if (aopty == ASM_OPERAND_TYPE._reg || amod == ASM_MODIFIERS._rspecial) { | |
| 2445 mrmb.modregrm.mod = 0x3; | |
| 2446 mrmb.modregrm.rm = mrmb.modregrm.rm | popnd.base.val; | |
| 2447 } | |
| 2448 else if (amod == ASM_MODIFIERS._addr16 || (amod == ASM_MODIFIERS._flbl && !I32)) | |
| 2449 { | |
| 2450 uint rm; | |
| 2451 | |
| 2452 debug if (debuga) | |
| 2453 printf("This is an ADDR16\n"); | |
| 2454 | |
| 2455 if (!popnd.pregDisp1) | |
| 2456 { rm = 0x6; | |
| 2457 if (!s) | |
| 2458 bDisp = true; | |
| 2459 } | |
| 2460 else | |
| 2461 { | |
| 2462 uint r1r2; | |
| 2463 | |
| 2464 if (popnd.pregDisp2) | |
| 2465 r1r2 = X(popnd.pregDisp1.val,popnd.pregDisp2.val); | |
| 2466 else | |
| 2467 r1r2 = Y(popnd.pregDisp1.val); | |
| 2468 | |
| 2469 switch (r1r2) | |
| 2470 { | |
| 2471 case X(_BX,_SI): rm = 0; break; | |
| 2472 case X(_BX,_DI): rm = 1; break; | |
| 2473 case Y(_BX): rm = 7; break; | |
| 2474 | |
| 2475 case X(_BP,_SI): rm = 2; break; | |
| 2476 case X(_BP,_DI): rm = 3; break; | |
| 2477 case Y(_BP): rm = 6; bDisp = true; break; | |
| 2478 | |
| 2479 case X(_SI,_BX): rm = 0; break; | |
| 2480 case X(_SI,_BP): rm = 2; break; | |
| 2481 case Y(_SI): rm = 4; break; | |
| 2482 | |
| 2483 case X(_DI,_BX): rm = 1; break; | |
| 2484 case X(_DI,_BP): rm = 3; break; | |
| 2485 case Y(_DI): rm = 5; break; | |
| 2486 | |
| 2487 default: | |
| 2488 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2489 } | |
| 2490 } | |
| 2491 mrmb.modregrm.rm = rm; | |
| 2492 | |
| 2493 debug if (debuga) | |
| 2494 printf("This is an mod = %d, popnd.s =%ld, popnd.disp = %ld\n", | |
| 2495 mrmb.modregrm.mod, s, popnd.disp); | |
| 2496 | |
| 2497 if (!s || (!mrmb.modregrm.mod && popnd.disp)) | |
| 2498 { | |
| 2499 if ((!popnd.disp && !bDisp) || !popnd.pregDisp1) | |
| 2500 mrmb.modregrm.mod = 0x0; | |
| 2501 else if (popnd.disp >= CHAR_MIN && popnd.disp <= SCHAR_MAX) | |
| 2502 mrmb.modregrm.mod = 0x1; | |
| 2503 else | |
| 2504 mrmb.modregrm.mod = 0X2; | |
| 2505 } | |
| 2506 else | |
| 2507 bOffsetsym = true; | |
| 2508 | |
| 2509 } | |
| 2510 else if (amod == ASM_MODIFIERS._addr32 || (amod == ASM_MODIFIERS._flbl && I32)) | |
| 2511 { | |
| 2512 debug if (debuga) | |
| 2513 printf("This is an ADDR32\n"); | |
| 2514 | |
| 2515 if (!popnd.pregDisp1) | |
| 2516 mrmb.modregrm.rm = 0x5; | |
| 2517 else if (popnd.pregDisp2 || | |
| 2518 popnd.uchMultiplier || | |
| 2519 popnd.pregDisp1.val == _ESP) | |
| 2520 { | |
| 2521 if (popnd.pregDisp2) | |
| 2522 { | |
| 2523 if (popnd.pregDisp2.val == _ESP) | |
| 2524 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2525 } | |
| 2526 else | |
| 2527 { | |
| 2528 if (popnd.uchMultiplier && popnd.pregDisp1.val ==_ESP) | |
| 2529 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2530 bDisp = true; | |
| 2531 } | |
| 2532 | |
| 2533 mrmb.modregrm.rm = 0x4; | |
| 2534 bSib = true; | |
| 2535 if (bDisp) | |
| 2536 { | |
| 2537 if (!popnd.uchMultiplier && | |
| 2538 popnd.pregDisp1.val==_ESP) | |
| 2539 { | |
| 2540 sib.sib.base = popnd.pregDisp1.val; | |
| 2541 sib.sib.index = 0x4; | |
| 2542 } | |
| 2543 else | |
| 2544 { | |
| 2545 debug if (debuga) | |
| 2546 printf("Resetting the mod to 0\n"); | |
| 2547 | |
| 2548 if (popnd.pregDisp2) | |
| 2549 { | |
| 2550 if (popnd.pregDisp2.val != _EBP) | |
| 2551 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2552 } | |
| 2553 else | |
| 2554 { | |
| 2555 mrmb.modregrm.mod = 0x0; | |
| 2556 bModset = true; | |
| 2557 } | |
| 2558 | |
| 2559 sib.sib.base = 0x5; | |
| 2560 sib.sib.index = popnd.pregDisp1.val; | |
| 2561 } | |
| 2562 } | |
| 2563 else | |
| 2564 { | |
| 2565 sib.sib.base = popnd.pregDisp1.val; | |
| 2566 // | |
| 2567 // This is to handle the special case | |
| 2568 // of using the EBP register and no | |
| 2569 // displacement. You must put in an | |
| 2570 // 8 byte displacement in order to | |
| 2571 // get the correct opcodes. | |
| 2572 // | |
| 2573 if (popnd.pregDisp1.val == _EBP && (!popnd.disp && !s)) | |
| 2574 { | |
| 2575 debug if (debuga) | |
| 2576 printf("Setting the mod to 1 in the _EBP case\n"); | |
| 2577 | |
| 2578 mrmb.modregrm.mod = 0x1; | |
| 2579 bDisp = true; // Need a | |
| 2580 // displacement | |
| 2581 bModset = true; | |
| 2582 } | |
| 2583 | |
| 2584 sib.sib.index = popnd.pregDisp2.val; | |
| 2585 } | |
| 2586 switch (popnd.uchMultiplier) | |
| 2587 { | |
| 2588 case 0: sib.sib.ss = 0; break; | |
| 2589 case 1: sib.sib.ss = 0; break; | |
| 2590 case 2: sib.sib.ss = 1; break; | |
| 2591 case 4: sib.sib.ss = 2; break; | |
| 2592 case 8: sib.sib.ss = 3; break; | |
| 2593 | |
| 2594 default: | |
| 2595 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2596 break; | |
| 2597 } | |
| 2598 if (bDisp && sib.sib.base == 0x5) | |
| 2599 b32bit = true; | |
| 2600 } | |
| 2601 else | |
| 2602 { | |
| 2603 uint rm; | |
| 2604 | |
| 2605 if (popnd.uchMultiplier) | |
| 2606 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2607 switch (popnd.pregDisp1.val) | |
| 2608 { | |
| 2609 case _EAX: rm = 0; break; | |
| 2610 case _ECX: rm = 1; break; | |
| 2611 case _EDX: rm = 2; break; | |
| 2612 case _EBX: rm = 3; break; | |
| 2613 case _ESI: rm = 6; break; | |
| 2614 case _EDI: rm = 7; break; | |
| 2615 | |
| 2616 case _EBP: | |
| 2617 if (!popnd.disp && !s) | |
| 2618 { | |
| 2619 mrmb.modregrm.mod = 0x1; | |
| 2620 bDisp = true; // Need a displacement | |
| 2621 bModset = true; | |
| 2622 } | |
| 2623 rm = 5; | |
| 2624 break; | |
| 2625 | |
| 2626 default: | |
| 2627 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2628 break; | |
| 2629 } | |
| 2630 mrmb.modregrm.rm = rm; | |
| 2631 } | |
| 2632 if (!bModset && (!s || (!mrmb.modregrm.mod && popnd.disp))) | |
| 2633 { | |
| 2634 if ((!popnd.disp && !mrmb.modregrm.mod) || | |
| 2635 (!popnd.pregDisp1 && !popnd.pregDisp2)) | |
| 2636 { | |
| 2637 mrmb.modregrm.mod = 0x0; | |
| 2638 bDisp = true; | |
| 2639 } | |
| 2640 else if (popnd.disp >= CHAR_MIN && popnd.disp <= SCHAR_MAX) | |
| 2641 mrmb.modregrm.mod = 0x1; | |
| 2642 else | |
| 2643 mrmb.modregrm.mod = 0x2; | |
| 2644 } | |
| 2645 else | |
| 2646 bOffsetsym = true; | |
| 2647 } | |
| 2648 if (popnd2 && !mrmb.modregrm.reg && | |
| 2649 asmstate.ucItype != IT.ITshift && | |
| 2650 (ASM_GET_aopty(popnd2.usFlags) == ASM_OPERAND_TYPE._reg || | |
| 2651 ASM_GET_amod(popnd2.usFlags) == ASM_MODIFIERS._rseg || | |
| 2652 ASM_GET_amod(popnd2.usFlags) == ASM_MODIFIERS._rspecial)) | |
| 2653 { | |
| 2654 mrmb.modregrm.reg = popnd2.base.val; | |
| 2655 } | |
| 2656 debug puchOpcode[ (*pusIdx)++ ] = mrmb.uchOpcode; | |
| 2657 | |
| 2658 pc.Irm = mrmb.uchOpcode; | |
| 2659 //printf("Irm = %02x\n", pc.Irm); | |
| 2660 if (bSib) | |
| 2661 { | |
| 2662 debug puchOpcode[ (*pusIdx)++ ] = sib.uchOpcode; | |
| 2663 pc.Isib= sib.uchOpcode; | |
| 2664 } | |
| 2665 if ((!s || (popnd.pregDisp1 && !bOffsetsym)) && | |
| 2666 aopty != ASM_OPERAND_TYPE._imm && | |
| 2667 (popnd.disp || bDisp)) | |
| 2668 { | |
| 2669 if (popnd.usFlags & _a16) | |
| 2670 { | |
| 2671 debug { | |
| 2672 puc = (cast(ubyte*) &(popnd.disp)); | |
| 2673 puchOpcode[(*pusIdx)++] = puc[1]; | |
| 2674 puchOpcode[(*pusIdx)++] = puc[0]; | |
| 2675 } | |
| 2676 if (usFlags & (_modrm | NUM_MASK)) { | |
| 2677 debug if (debuga) | |
| 2678 printf("Setting up value %ld\n", popnd.disp); | |
| 2679 | |
| 2680 pc.IEVint1() = popnd.disp; | |
| 2681 pc.IFL1 = FL.FLconst; | |
| 2682 } | |
| 2683 else { | |
| 2684 pc.IEVint2() = popnd.disp; | |
| 2685 pc.IFL2 = FL.FLconst; | |
| 2686 } | |
| 2687 | |
| 2688 } | |
| 2689 else | |
| 2690 { | |
| 2691 debug { | |
| 2692 puc = (cast(ubyte*) &(popnd.disp)); | |
| 2693 puchOpcode[(*pusIdx)++] = puc[3]; | |
| 2694 puchOpcode[(*pusIdx)++] = puc[2]; | |
| 2695 puchOpcode[(*pusIdx)++] = puc[1]; | |
| 2696 puchOpcode[(*pusIdx)++] = puc[0]; | |
| 2697 } | |
| 2698 if (usFlags & (_modrm | NUM_MASK)) { | |
| 2699 debug if (debuga) | |
| 2700 printf("Setting up value %ld\n", popnd.disp); | |
| 2701 | |
| 2702 pc.IEVpointer1() = cast(targ_size_t) popnd.disp; | |
| 2703 pc.IFL1 = FL.FLconst; | |
| 2704 } else { | |
| 2705 pc.IEVpointer2() = cast(targ_size_t) popnd.disp; | |
| 2706 pc.IFL2 = FL.FLconst; | |
| 2707 } | |
| 2708 } | |
| 2709 } | |
| 2710 } | |
| 2711 | |
| 2712 void asm_output_popnd(OPND* popnd) | |
| 2713 { | |
| 2714 if (popnd.segreg) | |
| 2715 printf("%s:", popnd.segreg.regstr); | |
| 2716 | |
| 2717 if (popnd.s) | |
| 2718 writef("%s", popnd.s.ident.toChars()); | |
| 2719 | |
| 2720 if (popnd.base) | |
| 2721 printf("%s", popnd.base.regstr); | |
| 2722 | |
| 2723 if (popnd.pregDisp1) { | |
| 2724 if (popnd.pregDisp2) { | |
| 2725 if (popnd.usFlags & _a32) | |
| 2726 if (popnd.uchMultiplier) | |
| 2727 printf("[%s][%s*%d]", | |
| 2728 popnd.pregDisp1.regstr, | |
| 2729 popnd.pregDisp2.regstr, | |
| 2730 popnd.uchMultiplier); | |
| 2731 else | |
| 2732 printf("[%s][%s]", | |
| 2733 popnd.pregDisp1.regstr, | |
| 2734 popnd.pregDisp2.regstr); | |
| 2735 else | |
| 2736 printf("[%s+%s]", | |
| 2737 popnd.pregDisp1.regstr, | |
| 2738 popnd.pregDisp2.regstr); | |
| 2739 } | |
| 2740 else { | |
| 2741 if (popnd.uchMultiplier) | |
| 2742 printf("[%s*%d]", | |
| 2743 popnd.pregDisp1.regstr, | |
| 2744 popnd.uchMultiplier); | |
| 2745 else | |
| 2746 printf("[%s]", | |
| 2747 popnd.pregDisp1.regstr); | |
| 2748 } | |
| 2749 } | |
| 2750 if (ASM_GET_aopty(popnd.usFlags) == ASM_OPERAND_TYPE._imm) | |
| 2751 printf("%lxh", popnd.disp); | |
| 2752 else if (popnd.disp) | |
| 2753 printf("+%lxh", popnd.disp); | |
| 2754 } | |
| 2755 | |
| 2756 /******************************* | |
| 2757 * Prepend line number to c. | |
| 2758 */ | |
| 2759 | |
| 2760 code* asm_genloc(Loc loc, code* c) | |
| 2761 { | |
| 2762 if (global.params.symdebug) | |
| 2763 { | |
| 2764 code* pcLin; | |
| 2765 Srcpos srcpos; | |
| 2766 | |
| 2767 srcpos.Slinnum = loc.linnum; | |
| 2768 srcpos.Sfilename = cast(char*)toStringz(loc.filename); | |
| 2769 pcLin = genlinnum(null, srcpos); | |
| 2770 | |
| 2771 c = cat(pcLin, c); | |
| 2772 } | |
| 2773 | |
| 2774 return c; | |
| 2775 } | |
| 2776 | |
| 2777 opflag_t asm_determine_operand_flags(OPND* popnd) | |
| 2778 { | |
| 2779 Dsymbol ps; | |
| 2780 int ty; | |
| 2781 opflag_t us; | |
| 2782 opflag_t sz; | |
| 2783 ASM_OPERAND_TYPE opty; | |
| 2784 ASM_MODIFIERS amod; | |
| 2785 | |
| 2786 // If specified 'offset' or 'segment' but no symbol | |
| 2787 if ((popnd.bOffset || popnd.bSeg) && !popnd.s) | |
| 2788 asmerr(ASMERRMSGS.EM_bad_addr_mode); // illegal addressing mode | |
| 2789 | |
| 2790 if (asmstate.ucItype == IT.ITfloat) | |
| 2791 return asm_determine_float_flags(popnd); | |
| 2792 | |
| 2793 // If just a register | |
| 2794 if (popnd.base && !popnd.s && !popnd.disp && !popnd.real_) | |
| 2795 return popnd.base.ty; | |
| 2796 | |
| 2797 debug if (debuga) | |
| 2798 printf("popnd.base = %s\n, popnd.pregDisp1 = %ld\n", popnd.base ? popnd.base.regstr : "NONE", popnd.pregDisp1); | |
| 2799 | |
| 2800 ps = popnd.s; | |
| 2801 Declaration ds = ps ? ps.isDeclaration() : null; | |
| 2802 if (ds && ds.storage_class & STC.STClazy) | |
| 2803 sz = _anysize; | |
| 2804 else | |
| 2805 sz = cast(ushort)asm_type_size((ds && ds.storage_class & (STC.STCout | STC.STCref)) ? popnd.ptype.pointerTo() : popnd.ptype); | |
| 2806 if (popnd.pregDisp1 && !popnd.base) | |
| 2807 { | |
| 2808 if (ps && ps.isLabel() && sz == _anysize) | |
| 2809 sz = I32 ? _32 : _16; | |
| 2810 return (popnd.pregDisp1.ty & _r32) | |
| 2811 ? CONSTRUCT_FLAGS(sz, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._addr32, 0) | |
| 2812 : CONSTRUCT_FLAGS(sz, ASM_OPERAND_TYPE._m, ASM_MODIFIERS._addr16, 0); | |
| 2813 } | |
| 2814 else if (ps) | |
| 2815 { | |
| 2816 if (popnd.bOffset || popnd.bSeg || ps == asmstate.psLocalsize) | |
| 2817 return I32 | |
| 2818 ? CONSTRUCT_FLAGS(_32, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0) | |
| 2819 : CONSTRUCT_FLAGS(_16, ASM_OPERAND_TYPE._imm, ASM_MODIFIERS._normal, 0); | |
| 2820 | |
| 2821 if (ps.isLabel()) | |
| 2822 { | |
| 2823 switch (popnd.ajt) | |
| 2824 { | |
| 2825 case ASM_JUMPTYPE.ASM_JUMPTYPE_UNSPECIFIED: | |
| 2826 if (ps == asmstate.psDollar) | |
| 2827 { | |
| 2828 if (popnd.disp >= CHAR_MIN && | |
| 2829 popnd.disp <= CHAR_MAX) | |
| 2830 us = CONSTRUCT_FLAGS(_8, _rel, ASM_MODIFIERS._flbl,0); | |
| 2831 else | |
| 2832 if (popnd.disp >= SHRT_MIN && | |
| 2833 popnd.disp <= SHRT_MIN) | |
| 2834 us = CONSTRUCT_FLAGS(_16, _rel, ASM_MODIFIERS._flbl,0); | |
| 2835 else | |
| 2836 us = CONSTRUCT_FLAGS(_32, _rel, ASM_MODIFIERS._flbl,0); | |
| 2837 } | |
| 2838 else if (asmstate.ucItype != ITjump) | |
| 2839 { | |
| 2840 if (sz == _8) | |
| 2841 { us = CONSTRUCT_FLAGS(_8,ASM_OPERAND_TYPE._rel,ASM_MODIFIERS._flbl,0); | |
| 2842 break; | |
| 2843 } | |
| 2844 goto case_near; | |
| 2845 } | |
| 2846 else | |
| 2847 us = I32 | |
| 2848 ? CONSTRUCT_FLAGS(_8|_32, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._flbl, 0) | |
| 2849 : CONSTRUCT_FLAGS(_8|_16, ASM_OPERAND_TYPE._rel, ASM_MODIFIERS._flbl, 0); | |
| 2850 break; | |
| 2851 | |
| 2852 case ASM_JUMPTYPE.ASM_JUMPTYPE_NEAR: | |
| 2853 case_near: | |
| 2854 us = I32 | |
| 2855 ? CONSTRUCT_FLAGS(_32, _rel, _flbl, 0) | |
| 2856 : CONSTRUCT_FLAGS(_16, _rel, _flbl, 0); | |
| 2857 break; | |
| 2858 case ASM_JUMPTYPE.ASM_JUMPTYPE_SHORT: | |
| 2859 us = CONSTRUCT_FLAGS(_8, _rel, _flbl, 0); | |
| 2860 break; | |
| 2861 case ASM_JUMPTYPE.ASM_JUMPTYPE_FAR: | |
| 2862 us = I32 | |
| 2863 ? CONSTRUCT_FLAGS(_48, _rel, _flbl, 0) | |
| 2864 : CONSTRUCT_FLAGS(_32, _rel, _flbl, 0); | |
| 2865 break; | |
| 2866 default: | |
| 2867 assert(0); | |
| 2868 } | |
| 2869 return us; | |
| 2870 } | |
| 2871 if (!popnd.ptype) | |
| 2872 return CONSTRUCT_FLAGS(sz, _m, _normal, 0); | |
| 2873 ty = popnd.ptype.ty; | |
| 2874 if (ty == Tpointer && popnd.ptype.nextOf().ty == Tfunction && | |
| 2875 !ps.isVarDeclaration()) | |
| 2876 { | |
| 2877 static if (true) { | |
| 2878 return CONSTRUCT_FLAGS(_32, _m, _fn16, 0); | |
| 2879 } else { | |
| 2880 ty = popnd.ptype.Tnext.Tty; | |
| 2881 if (tyfarfunc(tybasic(ty))) { | |
| 2882 return I32 | |
| 2883 ? CONSTRUCT_FLAGS(_48, _mnoi, _fn32, 0) | |
| 2884 : CONSTRUCT_FLAGS(_32, _mnoi, _fn32, 0); | |
| 2885 } | |
| 2886 else { | |
| 2887 return I32 | |
| 2888 ? CONSTRUCT_FLAGS(_32, _m, _fn16, 0) | |
| 2889 : CONSTRUCT_FLAGS(_16, _m, _fn16, 0); | |
| 2890 } | |
| 2891 } | |
| 2892 } | |
| 2893 else if (ty == TY.Tfunction) | |
| 2894 { | |
| 2895 static if (true) { | |
| 2896 return CONSTRUCT_FLAGS(_32, _rel, _fn16, 0); | |
| 2897 } else { | |
| 2898 if (tyfarfunc(tybasic(ty))) | |
| 2899 return I32 | |
| 2900 ? CONSTRUCT_FLAGS(_48, _p, _fn32, 0) | |
| 2901 : CONSTRUCT_FLAGS(_32, _p, _fn32, 0); | |
| 2902 else | |
| 2903 return I32 | |
| 2904 ? CONSTRUCT_FLAGS(_32, _rel, _fn16, 0) | |
| 2905 : CONSTRUCT_FLAGS(_16, _rel, _fn16, 0); | |
| 2906 } | |
| 2907 } | |
| 2908 else if (asmstate.ucItype == IT.ITjump) | |
| 2909 { | |
| 2910 amod = _normal; | |
| 2911 goto L1; | |
| 2912 } | |
| 2913 else | |
| 2914 return CONSTRUCT_FLAGS(sz, _m, _normal, 0); | |
| 2915 } | |
| 2916 if (popnd.segreg /*|| popnd.bPtr*/) | |
| 2917 { | |
| 2918 amod = I32 ? _addr32 : _addr16; | |
| 2919 if (asmstate.ucItype == ITjump) | |
| 2920 { | |
| 2921 L1: | |
| 2922 opty = _m; | |
| 2923 if (I32) | |
| 2924 { if (sz == _48) | |
| 2925 opty = _mnoi; | |
| 2926 } | |
| 2927 else | |
| 2928 { | |
| 2929 if (sz == _32) | |
| 2930 opty = _mnoi; | |
| 2931 } | |
| 2932 us = CONSTRUCT_FLAGS(sz,opty,amod,0); | |
| 2933 } | |
| 2934 else | |
| 2935 us = CONSTRUCT_FLAGS(sz, | |
| 2936 // _rel, amod, 0); | |
| 2937 _m, amod, 0); | |
| 2938 } | |
| 2939 | |
| 2940 else if (popnd.ptype) | |
| 2941 us = CONSTRUCT_FLAGS(sz, _imm, _normal, 0); | |
| 2942 | |
| 2943 else if (popnd.disp >= CHAR_MIN && popnd.disp <= UCHAR_MAX) | |
| 2944 us = CONSTRUCT_FLAGS(_8 | _16 | _32, _imm, _normal, 0); | |
| 2945 else if (popnd.disp >= SHRT_MIN && popnd.disp <= USHRT_MAX) | |
| 2946 us = CONSTRUCT_FLAGS(_16 | _32, _imm, _normal, 0); | |
| 2947 else | |
| 2948 us = CONSTRUCT_FLAGS(_32, _imm, _normal, 0); | |
| 2949 return us; | |
| 2950 } | |
| 2951 | |
| 2952 /******************************* | |
| 2953 * Match flags in operand against flags in opcode table. | |
| 2954 * Returns: | |
| 2955 * !=0 if match | |
| 2956 */ | |
| 2957 | |
| 2958 ubyte asm_match_flags(opflag_t usOp, opflag_t usTable) | |
| 2959 { | |
| 2960 ASM_OPERAND_TYPE aoptyTable; | |
| 2961 ASM_OPERAND_TYPE aoptyOp; | |
| 2962 ASM_MODIFIERS amodTable; | |
| 2963 ASM_MODIFIERS amodOp; | |
| 2964 uint uRegmaskTable; | |
| 2965 uint uRegmaskOp; | |
| 2966 ubyte bRegmatch; | |
| 2967 ubyte bRetval = false; | |
| 2968 uint uSizemaskOp; | |
| 2969 uint uSizemaskTable; | |
| 2970 ubyte bSizematch; | |
| 2971 | |
| 2972 //printf("asm_match_flags(usOp = x%x, usTable = x%x)\n", usOp, usTable); | |
| 2973 if (asmstate.ucItype == IT.ITfloat) | |
| 2974 { | |
| 2975 bRetval = asm_match_float_flags(usOp, usTable); | |
| 2976 goto EXIT; | |
| 2977 } | |
| 2978 | |
| 2979 uSizemaskOp = ASM_GET_uSizemask(usOp); | |
| 2980 uSizemaskTable = ASM_GET_uSizemask(usTable); | |
| 2981 | |
| 2982 // Check #1, if the sizes do not match, NO match | |
| 2983 bSizematch = (uSizemaskOp & uSizemaskTable) != 0; | |
| 2984 | |
| 2985 amodOp = ASM_GET_amod(usOp); | |
| 2986 | |
| 2987 aoptyTable = ASM_GET_aopty(usTable); | |
| 2988 aoptyOp = ASM_GET_aopty(usOp); | |
| 2989 | |
| 2990 // _mmm64 matches with a 64 bit mem or an MMX register | |
| 2991 if (usTable == _mmm64) | |
| 2992 { | |
| 2993 if (usOp == _mm) | |
| 2994 goto Lmatch; | |
| 2995 if (aoptyOp == _m && (bSizematch || uSizemaskOp == _anysize)) | |
| 2996 goto Lmatch; | |
| 2997 goto EXIT; | |
| 2998 } | |
| 2999 | |
| 3000 // _xmm_m32, _xmm_m64, _xmm_m128 match with XMM register or memory | |
| 3001 if (usTable == _xmm_m32 || | |
| 3002 usTable == _xmm_m64 || | |
| 3003 usTable == _xmm_m128) | |
| 3004 { | |
| 3005 if (usOp == _xmm) | |
| 3006 goto Lmatch; | |
| 3007 if (aoptyOp == _m && (bSizematch || uSizemaskOp == _anysize)) | |
| 3008 goto Lmatch; | |
| 3009 } | |
| 3010 | |
| 3011 if (!bSizematch && uSizemaskTable) | |
| 3012 { | |
| 3013 //printf("no size match\n"); | |
| 3014 goto EXIT; | |
| 3015 } | |
| 3016 | |
| 3017 | |
| 3018 // | |
| 3019 // The operand types must match, otherwise return false. | |
| 3020 // There is one exception for the _rm which is a table entry which matches | |
| 3021 // _reg or _m | |
| 3022 // | |
| 3023 if (aoptyTable != aoptyOp) | |
| 3024 { | |
| 3025 if (aoptyTable == _rm && (aoptyOp == _reg || | |
| 3026 aoptyOp == _m || | |
| 3027 aoptyOp == _rel)) | |
| 3028 goto Lok; | |
| 3029 | |
| 3030 if (aoptyTable == _mnoi && aoptyOp == _m && | |
| 3031 (uSizemaskOp == _32 && amodOp == _addr16 || | |
| 3032 uSizemaskOp == _48 && amodOp == _addr32 || | |
| 3033 uSizemaskOp == _48 && amodOp == _normal) | |
| 3034 ) | |
| 3035 goto Lok; | |
| 3036 goto EXIT; | |
| 3037 } | |
| 3038 Lok: | |
| 3039 | |
| 3040 // | |
| 3041 // Looks like a match so far, check to see if anything special is going on | |
| 3042 // | |
| 3043 amodTable = ASM_GET_amod(usTable); | |
| 3044 uRegmaskOp = ASM_GET_uRegmask(usOp); | |
| 3045 uRegmaskTable = ASM_GET_uRegmask(usTable); | |
| 3046 bRegmatch = ((!uRegmaskTable && !uRegmaskOp) || | |
| 3047 (uRegmaskTable & uRegmaskOp)); | |
| 3048 | |
| 3049 switch (amodTable) | |
| 3050 { | |
| 3051 case _normal: // Normal's match with normals | |
| 3052 switch(amodOp) { | |
| 3053 case _normal: | |
| 3054 case _addr16: | |
| 3055 case _addr32: | |
| 3056 case _fn16: | |
| 3057 case _fn32: | |
| 3058 case _flbl: | |
| 3059 bRetval = (bSizematch || bRegmatch); | |
| 3060 goto EXIT; | |
| 3061 default: | |
| 3062 goto EXIT; | |
| 3063 } | |
| 3064 case _rseg: | |
| 3065 case _rspecial: | |
| 3066 bRetval = (amodOp == amodTable && bRegmatch); | |
| 3067 goto EXIT; | |
| 3068 } | |
| 3069 EXIT: | |
| 3070 static if (false) { | |
| 3071 printf("OP : "); | |
| 3072 asm_output_flags(usOp); | |
| 3073 printf("\nTBL: "); | |
| 3074 asm_output_flags(usTable); | |
| 3075 writef(": %s\n", bRetval ? "MATCH" : "NOMATCH"); | |
| 3076 } | |
| 3077 return bRetval; | |
| 3078 | |
| 3079 Lmatch: | |
| 3080 //printf("match\n"); | |
| 3081 return 1; | |
| 3082 } | |
| 3083 | |
| 3084 void asm_output_flags(opflag_t usFlags) | |
| 3085 { | |
| 3086 ASM_OPERAND_TYPE aopty = ASM_GET_aopty(usFlags); | |
| 3087 ASM_MODIFIERS amod = ASM_GET_amod(usFlags); | |
| 3088 uint uRegmask = ASM_GET_uRegmask(usFlags); | |
| 3089 uint uSizemask = ASM_GET_uSizemask(usFlags); | |
| 3090 | |
| 3091 if (uSizemask == _anysize) | |
| 3092 printf("_anysize "); | |
| 3093 else if (uSizemask == 0) | |
| 3094 printf("0 "); | |
| 3095 else | |
| 3096 { | |
| 3097 if (uSizemask & _8) | |
| 3098 printf("_8 "); | |
| 3099 if (uSizemask & _16) | |
| 3100 printf("_16 "); | |
| 3101 if (uSizemask & _32) | |
| 3102 printf("_32 "); | |
| 3103 if (uSizemask & _48) | |
| 3104 printf("_48 "); | |
| 3105 } | |
| 3106 | |
| 3107 printf("_"); | |
| 3108 switch (aopty) { | |
| 3109 case ASM_OPERAND_TYPE._reg: | |
| 3110 printf("reg "); | |
| 3111 break; | |
| 3112 case ASM_OPERAND_TYPE._m: | |
| 3113 printf("m "); | |
| 3114 break; | |
| 3115 case ASM_OPERAND_TYPE._imm: | |
| 3116 printf("imm "); | |
| 3117 break; | |
| 3118 case ASM_OPERAND_TYPE._rel: | |
| 3119 printf("rel "); | |
| 3120 break; | |
| 3121 case ASM_OPERAND_TYPE._mnoi: | |
| 3122 printf("mnoi "); | |
| 3123 break; | |
| 3124 case ASM_OPERAND_TYPE._p: | |
| 3125 printf("p "); | |
| 3126 break; | |
| 3127 case ASM_OPERAND_TYPE._rm: | |
| 3128 printf("rm "); | |
| 3129 break; | |
| 3130 case ASM_OPERAND_TYPE._float: | |
| 3131 printf("float "); | |
| 3132 break; | |
| 3133 default: | |
| 3134 printf(" UNKNOWN "); | |
| 3135 } | |
| 3136 | |
| 3137 printf("_"); | |
| 3138 switch (amod) { | |
| 3139 case ASM_MODIFIERS._normal: | |
| 3140 printf("normal "); | |
| 3141 if (uRegmask & 1) printf("_al "); | |
| 3142 if (uRegmask & 2) printf("_ax "); | |
| 3143 if (uRegmask & 4) printf("_eax "); | |
| 3144 if (uRegmask & 8) printf("_dx "); | |
| 3145 if (uRegmask & 0x10) printf("_cl "); | |
| 3146 return; | |
| 3147 case ASM_MODIFIERS._rseg: | |
| 3148 printf("rseg "); | |
| 3149 break; | |
| 3150 case ASM_MODIFIERS._rspecial: | |
| 3151 printf("rspecial "); | |
| 3152 break; | |
| 3153 case ASM_MODIFIERS._addr16: | |
| 3154 printf("addr16 "); | |
| 3155 break; | |
| 3156 case ASM_MODIFIERS._addr32: | |
| 3157 printf("addr32 "); | |
| 3158 break; | |
| 3159 case ASM_MODIFIERS._fn16: | |
| 3160 printf("fn16 "); | |
| 3161 break; | |
| 3162 case ASM_MODIFIERS._fn32: | |
| 3163 printf("fn32 "); | |
| 3164 break; | |
| 3165 case ASM_MODIFIERS._flbl: | |
| 3166 printf("flbl "); | |
| 3167 break; | |
| 3168 default: | |
| 3169 printf("UNKNOWN "); | |
| 3170 break; | |
| 3171 } | |
| 3172 | |
| 3173 printf("uRegmask=x%02x", uRegmask); | |
| 3174 } | |
| 3175 | |
| 3176 OPND* asm_log_or_exp() | |
| 3177 { | |
| 3178 OPND* o1 = asm_log_and_exp(); | |
| 3179 OPND* o2; | |
| 3180 | |
| 3181 while (tok_value == TOK.TOKoror) | |
| 3182 { | |
| 3183 asm_token(); | |
| 3184 o2 = asm_log_and_exp(); | |
| 3185 if (asm_isint(o1) && asm_isint(o2)) | |
| 3186 o1.disp = o1.disp || o2.disp; | |
| 3187 else | |
| 3188 asmerr(ASMERRMSGS.EM_bad_integral_operand); // illegal operand | |
| 3189 o2.disp = 0; | |
| 3190 o1 = asm_merge_opnds(o1, o2); | |
| 3191 } | |
| 3192 return o1; | |
| 3193 } | |
| 3194 | |
| 3195 void asm_chktok(TOK toknum, uint errnum) | |
| 3196 { | |
| 3197 if (tok_value == toknum) | |
| 3198 asm_token(); // scan past token | |
| 3199 else | |
| 3200 /* When we run out of tokens, asmtok is null. | |
| 3201 * But when this happens when a ';' was hit. | |
| 3202 */ | |
| 3203 asmerr(errnum, asmtok ? asmtok.toChars() : ";"); | |
| 3204 } | |
| 3205 | |
| 3206 opflag_t asm_determine_float_flags(OPND* popnd) | |
| 3207 { | |
| 3208 //printf("asm_determine_float_flags()\n"); | |
| 3209 | |
| 3210 opflag_t us; | |
| 3211 opflag_t usFloat; | |
| 3212 | |
| 3213 // Insure that if it is a register, that it is not a normal processor | |
| 3214 // register. | |
| 3215 | |
| 3216 if (popnd.base && | |
| 3217 !popnd.s && !popnd.disp && !popnd.real_ | |
| 3218 && !(popnd.base.ty & (_r8 | _r16 | _r32))) | |
| 3219 { | |
| 3220 return popnd.base.ty; | |
| 3221 } | |
| 3222 if (popnd.pregDisp1 && !popnd.base) | |
| 3223 { | |
| 3224 us = asm_float_type_size(popnd.ptype, &usFloat); | |
| 3225 //printf("us = x%x, usFloat = x%x\n", us, usFloat); | |
| 3226 if (popnd.pregDisp1.ty & _r32) | |
| 3227 return(CONSTRUCT_FLAGS(us, _m, _addr32, usFloat)); | |
| 3228 else if (popnd.pregDisp1.ty & _r16) | |
| 3229 return(CONSTRUCT_FLAGS(us, _m, _addr16, usFloat)); | |
| 3230 } | |
| 3231 else if (popnd.s !is null) | |
| 3232 { | |
| 3233 us = asm_float_type_size(popnd.ptype, &usFloat); | |
| 3234 return CONSTRUCT_FLAGS(us, _m, _normal, usFloat); | |
| 3235 } | |
| 3236 | |
| 3237 if (popnd.segreg) | |
| 3238 { | |
| 3239 us = asm_float_type_size(popnd.ptype, &usFloat); | |
| 3240 if (I32) | |
| 3241 return(CONSTRUCT_FLAGS(us, _m, _addr32, usFloat)); | |
| 3242 else | |
| 3243 return(CONSTRUCT_FLAGS(us, _m, _addr16, usFloat)); | |
| 3244 } | |
| 3245 | |
| 3246 static if (false) { | |
| 3247 if (popnd.real_) | |
| 3248 { | |
| 3249 switch (popnd.ptype.ty) | |
| 3250 { | |
| 3251 case TY.Tfloat32: | |
| 3252 popnd.s = fconst(popnd.real_); | |
| 3253 return(CONSTRUCT_FLAGS(_32, _m, _normal, 0)); | |
| 3254 | |
| 3255 case TY.Tfloat64: | |
| 3256 popnd.s = dconst(popnd.real_); | |
| 3257 return(CONSTRUCT_FLAGS(0, _m, _normal, _64)); | |
| 3258 | |
| 3259 case TY.Tfloat80: | |
| 3260 popnd.s = ldconst(popnd.real_); | |
| 3261 return(CONSTRUCT_FLAGS(0, _m, _normal, _80)); | |
| 3262 } | |
| 3263 } | |
| 3264 } | |
| 3265 | |
| 3266 asmerr(ASMERRMSGS.EM_bad_float_op); // unknown operand for floating point instruction | |
| 3267 return 0; | |
| 3268 } | |
| 3269 | |
| 3270 uint asm_type_size(Type ptype) | |
| 3271 { | |
| 3272 //if (ptype) printf("asm_type_size('%s') = %d\n", ptype.toChars(), (int)ptype.size()); | |
| 3273 uint u = _anysize; | |
| 3274 if (ptype && ptype.ty != TY.Tfunction /*&& ptype.isscalar()*/) | |
| 3275 { | |
| 3276 switch (cast(int)ptype.size()) | |
| 3277 { | |
| 3278 case 0: asmerr(ASMERRMSGS.EM_bad_op, "0 size"); break; | |
| 3279 case 1: u = _8; break; | |
| 3280 case 2: u = _16; break; | |
| 3281 case 4: u = _32; break; | |
| 3282 case 6: u = _48; break; | |
| 3283 default: | |
| 3284 break; /// | |
| 3285 } | |
| 3286 } | |
| 3287 return u; | |
| 3288 } | |
| 3289 | |
| 3290 bool asm_match_float_flags(opflag_t usOp, opflag_t usTable) | |
| 3291 { | |
| 3292 ASM_OPERAND_TYPE aoptyTable; | |
| 3293 ASM_OPERAND_TYPE aoptyOp; | |
| 3294 ASM_MODIFIERS amodTable; | |
| 3295 ASM_MODIFIERS amodOp; | |
| 3296 uint uRegmaskTable; | |
| 3297 uint uRegmaskOp; | |
| 3298 ubyte bRegmatch; | |
| 3299 | |
| 3300 | |
| 3301 // | |
| 3302 // Check #1, if the sizes do not match, NO match | |
| 3303 // | |
| 3304 uRegmaskOp = ASM_GET_uRegmask(usOp); | |
| 3305 uRegmaskTable = ASM_GET_uRegmask(usTable); | |
| 3306 bRegmatch = (uRegmaskTable & uRegmaskOp) != 0; | |
| 3307 | |
| 3308 if (!(ASM_GET_uSizemask(usTable) & ASM_GET_uSizemask(usOp) || bRegmatch)) | |
| 3309 return false; | |
| 3310 | |
| 3311 aoptyTable = ASM_GET_aopty(usTable); | |
| 3312 aoptyOp = ASM_GET_aopty(usOp); | |
| 3313 // | |
| 3314 // The operand types must match, otherwise return false. | |
| 3315 // There is one exception for the _rm which is a table entry which matches | |
| 3316 // _reg or _m | |
| 3317 // | |
| 3318 if (aoptyTable != aoptyOp) | |
| 3319 { | |
| 3320 if (aoptyOp != _float) | |
| 3321 return false; | |
| 3322 } | |
| 3323 | |
| 3324 // | |
| 3325 // Looks like a match so far, check to see if anything special is going on | |
| 3326 // | |
| 3327 amodOp = ASM_GET_amod(usOp); | |
| 3328 amodTable = ASM_GET_amod(usTable); | |
| 3329 switch (amodTable) | |
| 3330 { | |
| 3331 // Normal's match with normals | |
| 3332 case _normal: | |
| 3333 switch(amodOp) | |
| 3334 { | |
| 3335 case _normal: | |
| 3336 case _addr16: | |
| 3337 case _addr32: | |
| 3338 case _fn16: | |
| 3339 case _fn32: | |
| 3340 case _flbl: | |
| 3341 return true; | |
| 3342 | |
| 3343 default: | |
| 3344 return false; | |
| 3345 } | |
| 3346 | |
| 3347 case _rseg: | |
| 3348 case _rspecial: | |
| 3349 return false; | |
| 3350 default: | |
| 3351 assert(0); | |
| 3352 } | |
| 3353 } | |
| 3354 | |
| 3355 OPND* asm_log_and_exp() | |
| 3356 { | |
| 3357 OPND* o1 = asm_inc_or_exp(); | |
| 3358 OPND* o2; | |
| 3359 | |
| 3360 while (tok_value == TOKandand) | |
| 3361 { | |
| 3362 asm_token(); | |
| 3363 o2 = asm_inc_or_exp(); | |
| 3364 if (asm_isint(o1) && asm_isint(o2)) | |
| 3365 o1.disp = o1.disp && o2.disp; | |
| 3366 else { | |
| 3367 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3368 } | |
| 3369 o2.disp = 0; | |
| 3370 o1 = asm_merge_opnds(o1, o2); | |
| 3371 } | |
| 3372 return o1; | |
| 3373 } | |
| 3374 | |
| 3375 bool asm_isint(OPND *o) | |
| 3376 { | |
| 3377 if (!o || o.base || o.s) | |
| 3378 return false; | |
| 3379 | |
| 3380 //return o.disp != 0; | |
| 3381 return true; | |
| 3382 } | |
| 3383 | |
| 3384 /******************************* | |
| 3385 * Merge operands o1 and o2 into a single operand. | |
| 3386 */ | |
| 3387 | |
| 3388 OPND* asm_merge_opnds(OPND* o1, OPND* o2) | |
| 3389 { | |
| 3390 debug immutable(char)* psz; | |
| 3391 debug if (debuga) | |
| 3392 { | |
| 3393 printf("asm_merge_opnds(o1 = "); | |
| 3394 if (o1) asm_output_popnd(o1); | |
| 3395 printf(", o2 = "); | |
| 3396 if (o2) asm_output_popnd(o2); | |
| 3397 printf(")\n"); | |
| 3398 } | |
| 3399 | |
| 3400 if (!o1) | |
| 3401 return o2; | |
| 3402 if (!o2) | |
| 3403 return o1; | |
| 3404 version (EXTRA_DEBUG) { | |
| 3405 printf("Combining Operands: mult1 = %d, mult2 = %d", | |
| 3406 o1.uchMultiplier, o2.uchMultiplier); | |
| 3407 } | |
| 3408 /* combine the OPND's disp field */ | |
| 3409 if (o2.segreg) { | |
| 3410 if (o1.segreg) { | |
| 3411 debug psz = "o1.segment && o2.segreg".ptr; | |
| 3412 goto ILLEGAL_ADDRESS_ERROR; | |
| 3413 } | |
| 3414 else | |
| 3415 o1.segreg = o2.segreg; | |
| 3416 } | |
| 3417 | |
| 3418 // combine the OPND's symbol field | |
| 3419 if (o1.s && o2.s) | |
| 3420 { | |
| 3421 debug psz = "o1.s && os.s"; | |
| 3422 ILLEGAL_ADDRESS_ERROR: | |
| 3423 debug printf("Invalid addr because /%s/\n", psz); | |
| 3424 | |
| 3425 asmerr(EM_bad_addr_mode); // illegal addressing mode | |
| 3426 } | |
| 3427 else if (o2.s) | |
| 3428 o1.s = o2.s; | |
| 3429 else if (o1.s && o1.s.isTupleDeclaration()) | |
| 3430 { | |
| 3431 TupleDeclaration tup = o1.s.isTupleDeclaration(); | |
| 3432 | |
| 3433 size_t index = o2.disp; | |
| 3434 if (index >= tup.objects.dim) | |
| 3435 error(asmstate.loc, "tuple index %u exceeds %u", index, tup.objects.dim); | |
| 3436 else | |
| 3437 { | |
|
113
3482c73a991b
More cleanup for arrays
Eldar Insafutdinov <e.insafutdinov@gmail.com>
parents:
54
diff
changeset
|
3438 Object o = tup.objects[index]; |
| 0 | 3439 if (auto d = cast(Dsymbol)o) |
| 3440 { | |
| 3441 o1.s = d; | |
| 3442 return o1; | |
| 3443 } | |
| 3444 else if (auto e = cast(Expression)o) | |
| 3445 { | |
| 3446 if (e.op == TOKvar) | |
| 3447 { | |
| 3448 o1.s = (cast(VarExp)e).var; | |
| 3449 return o1; | |
| 3450 } | |
| 3451 else if (e.op == TOKfunction) | |
| 3452 { | |
| 3453 o1.s = (cast(FuncExp)e).fd; | |
| 3454 return o1; | |
| 3455 } | |
| 3456 } | |
| 3457 error(asmstate.loc, "invalid asm operand %s", o1.s.toChars()); | |
| 3458 } | |
| 3459 } | |
| 3460 | |
| 3461 if (o1.disp && o2.disp) | |
| 3462 o1.disp += o2.disp; | |
| 3463 else if (o2.disp) | |
| 3464 o1.disp = o2.disp; | |
| 3465 | |
| 3466 /* combine the OPND's base field */ | |
| 3467 if (o1.base !is null && o2.base !is null) { | |
| 3468 debug psz = "o1.base != null && o2.base != null".ptr; | |
| 3469 goto ILLEGAL_ADDRESS_ERROR; | |
| 3470 } | |
| 3471 else if (o2.base) | |
| 3472 o1.base = o2.base; | |
| 3473 | |
| 3474 /* Combine the displacement register fields */ | |
| 3475 if (o2.pregDisp1) | |
| 3476 { | |
| 3477 if (o1.pregDisp2) | |
| 3478 { | |
| 3479 debug psz = "o2.pregDisp1 && o1.pregDisp2"; | |
| 3480 goto ILLEGAL_ADDRESS_ERROR; | |
| 3481 } | |
| 3482 else if (o1.pregDisp1) | |
| 3483 { | |
| 3484 if (o1.uchMultiplier || | |
| 3485 (o2.pregDisp1.val == _ESP && | |
| 3486 (o2.pregDisp1.ty & _r32) && | |
| 3487 !o2.uchMultiplier)) | |
| 3488 { | |
| 3489 o1.pregDisp2 = o1.pregDisp1; | |
| 3490 o1.pregDisp1 = o2.pregDisp1; | |
| 3491 } | |
| 3492 else | |
| 3493 o1.pregDisp2 = o2.pregDisp1; | |
| 3494 } | |
| 3495 else | |
| 3496 o1.pregDisp1 = o2.pregDisp1; | |
| 3497 } | |
| 3498 if (o2.pregDisp2) { | |
| 3499 if (o1.pregDisp2) { | |
| 3500 debug psz = "o1.pregDisp2 && o2.pregDisp2"; | |
| 3501 goto ILLEGAL_ADDRESS_ERROR; | |
| 3502 } | |
| 3503 else | |
| 3504 o1.pregDisp2 = o2.pregDisp2; | |
| 3505 } | |
| 3506 if (o2.uchMultiplier) | |
| 3507 { | |
| 3508 if (o1.uchMultiplier) | |
| 3509 { | |
| 3510 debug psz = "o1.uchMultiplier && o2.uchMultiplier"; | |
| 3511 goto ILLEGAL_ADDRESS_ERROR; | |
| 3512 } | |
| 3513 else | |
| 3514 o1.uchMultiplier = o2.uchMultiplier; | |
| 3515 } | |
| 3516 if (o2.ptype && !o1.ptype) | |
| 3517 o1.ptype = o2.ptype; | |
| 3518 if (o2.bOffset) | |
| 3519 o1.bOffset = o2.bOffset; | |
| 3520 if (o2.bSeg) | |
| 3521 o1.bSeg = o2.bSeg; | |
| 3522 | |
| 3523 if (o2.ajt && !o1.ajt) | |
| 3524 o1.ajt = o2.ajt; | |
| 3525 | |
| 3526 opnd_free(o2); | |
| 3527 version (EXTRA_DEBUG) { | |
| 3528 printf("Result = %d\n", o1.uchMultiplier); | |
| 3529 } | |
| 3530 debug if (debuga) | |
| 3531 { printf("Merged result = /"); | |
| 3532 asm_output_popnd(o1); | |
| 3533 printf("/\n"); | |
| 3534 } | |
| 3535 | |
| 3536 return o1; | |
| 3537 } | |
| 3538 | |
| 3539 opflag_t asm_float_type_size(Type ptype, opflag_t* pusFloat) | |
| 3540 { | |
| 3541 *pusFloat = 0; | |
| 3542 | |
| 3543 //printf("asm_float_type_size('%s')\n", ptype.toChars()); | |
| 3544 if (ptype && ptype.isscalar()) | |
| 3545 { | |
| 3546 int sz = cast(int)ptype.size(); | |
| 3547 if (sz == REALSIZE) | |
| 3548 { | |
| 3549 *pusFloat = _80; | |
| 3550 return 0; | |
| 3551 } | |
| 3552 switch (sz) | |
| 3553 { | |
| 3554 case 2: | |
| 3555 return _16; | |
| 3556 case 4: | |
| 3557 return _32; | |
| 3558 case 8: | |
| 3559 *pusFloat = _64; | |
| 3560 return 0; | |
| 3561 default: | |
| 3562 break; | |
| 3563 } | |
| 3564 } | |
| 3565 | |
| 3566 *pusFloat = _fanysize; | |
| 3567 return _anysize; | |
| 3568 } | |
| 3569 | |
| 3570 OPND* asm_inc_or_exp() | |
| 3571 { | |
| 3572 OPND* o1 = asm_xor_exp(); | |
| 3573 OPND* o2; | |
| 3574 | |
| 3575 while (tok_value == TOKor) | |
| 3576 { | |
| 3577 asm_token(); | |
| 3578 o2 = asm_xor_exp(); | |
| 3579 if (asm_isint(o1) && asm_isint(o2)) | |
| 3580 o1.disp |= o2.disp; | |
| 3581 else { | |
| 3582 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3583 } | |
| 3584 o2.disp = 0; | |
| 3585 o1 = asm_merge_opnds(o1, o2); | |
| 3586 } | |
| 3587 return o1; | |
| 3588 } | |
| 3589 | |
| 3590 OPND* asm_xor_exp() | |
| 3591 { | |
| 3592 OPND* o1 = asm_and_exp(); | |
| 3593 OPND* o2; | |
| 3594 | |
| 3595 while (tok_value == TOKxor) | |
| 3596 { | |
| 3597 asm_token(); | |
| 3598 o2 = asm_and_exp(); | |
| 3599 if (asm_isint(o1) && asm_isint(o2)) | |
| 3600 o1.disp ^= o2.disp; | |
| 3601 else { | |
| 3602 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3603 } | |
| 3604 o2.disp = 0; | |
| 3605 o1 = asm_merge_opnds(o1, o2); | |
| 3606 } | |
| 3607 return o1; | |
| 3608 } | |
| 3609 | |
| 3610 OPND* asm_and_exp() | |
| 3611 { | |
| 3612 OPND* o1 = asm_equal_exp(); | |
| 3613 OPND* o2; | |
| 3614 | |
| 3615 while (tok_value == TOKand) | |
| 3616 { | |
| 3617 asm_token(); | |
| 3618 o2 = asm_equal_exp(); | |
| 3619 if (asm_isint(o1) && asm_isint(o2)) | |
| 3620 o1.disp &= o2.disp; | |
| 3621 else { | |
| 3622 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3623 } | |
| 3624 o2.disp = 0; | |
| 3625 o1 = asm_merge_opnds(o1, o2); | |
| 3626 } | |
| 3627 return o1; | |
| 3628 } | |
| 3629 | |
| 3630 OPND* asm_equal_exp() | |
| 3631 { | |
| 3632 OPND* o1 = asm_rel_exp(); | |
| 3633 OPND* o2; | |
| 3634 | |
| 3635 while (1) | |
| 3636 { | |
| 3637 switch (tok_value) | |
| 3638 { | |
| 3639 case TOKequal: | |
| 3640 asm_token(); | |
| 3641 o2 = asm_rel_exp(); | |
| 3642 if (asm_isint(o1) && asm_isint(o2)) | |
| 3643 o1.disp = o1.disp == o2.disp; | |
| 3644 else { | |
| 3645 asmerr(EM_bad_integral_operand); // illegal operand | |
| 3646 } | |
| 3647 o2.disp = 0; | |
| 3648 o1 = asm_merge_opnds(o1, o2); | |
| 3649 break; | |
| 3650 | |
| 3651 case TOKnotequal: | |
| 3652 asm_token(); | |
| 3653 o2 = asm_rel_exp(); | |
| 3654 if (asm_isint(o1) && asm_isint(o2)) | |
| 3655 o1.disp = o1.disp != o2.disp; | |
| 3656 else { | |
| 3657 asmerr(EM_bad_integral_operand); | |
| 3658 } | |
| 3659 o2.disp = 0; | |
| 3660 o1 = asm_merge_opnds(o1, o2); | |
| 3661 break; | |
| 3662 | |
| 3663 default: | |
| 3664 return o1; | |
| 3665 } | |
| 3666 } | |
| 3667 | |
| 3668 assert(false); | |
| 3669 } | |
| 3670 | |
| 3671 OPND* asm_rel_exp() | |
| 3672 { | |
| 3673 OPND* o1 = asm_shift_exp(); | |
| 3674 OPND* o2; | |
| 3675 | |
| 3676 TOK tok_save; | |
| 3677 | |
| 3678 while (1) | |
| 3679 { | |
| 3680 switch (tok_value) | |
| 3681 { | |
| 3682 case TOKgt: | |
| 3683 case TOKge: | |
| 3684 case TOKlt: | |
| 3685 case TOKle: | |
| 3686 tok_save = tok_value; | |
| 3687 asm_token(); | |
| 3688 o2 = asm_shift_exp(); | |
| 3689 if (asm_isint(o1) && asm_isint(o2)) | |
| 3690 { | |
| 3691 switch (tok_save) | |
| 3692 { | |
| 3693 case TOKgt: | |
| 3694 o1.disp = o1.disp > o2.disp; | |
| 3695 break; | |
| 3696 case TOKge: | |
| 3697 o1.disp = o1.disp >= o2.disp; | |
| 3698 break; | |
| 3699 case TOKlt: | |
| 3700 o1.disp = o1.disp < o2.disp; | |
| 3701 break; | |
| 3702 case TOKle: | |
| 3703 o1.disp = o1.disp <= o2.disp; | |
| 3704 break; | |
| 3705 } | |
| 3706 } | |
| 3707 else | |
| 3708 asmerr(EM_bad_integral_operand); | |
| 3709 o2.disp = 0; | |
| 3710 o1 = asm_merge_opnds(o1, o2); | |
| 3711 break; | |
| 3712 | |
| 3713 default: | |
| 3714 return o1; | |
| 3715 } | |
| 3716 } | |
| 3717 | |
| 3718 assert(false); | |
| 3719 } | |
| 3720 | |
| 3721 OPND* asm_shift_exp() | |
| 3722 { | |
| 3723 OPND* o1 = asm_add_exp(); | |
| 3724 OPND* o2; | |
| 3725 | |
| 3726 int op; | |
| 3727 TOK tk; | |
| 3728 | |
| 3729 while (tok_value == TOKshl || tok_value == TOKshr || tok_value == TOKushr) | |
| 3730 { | |
| 3731 tk = tok_value; | |
| 3732 asm_token(); | |
| 3733 o2 = asm_add_exp(); | |
| 3734 if (asm_isint(o1) && asm_isint(o2)) | |
| 3735 { if (tk == TOKshl) | |
| 3736 o1.disp <<= o2.disp; | |
| 3737 else if (tk == TOKushr) | |
| 3738 o1.disp = cast(uint)o1.disp >> o2.disp; | |
| 3739 else | |
| 3740 o1.disp >>= o2.disp; | |
| 3741 } | |
| 3742 else | |
| 3743 asmerr(EM_bad_integral_operand); | |
| 3744 o2.disp = 0; | |
| 3745 o1 = asm_merge_opnds(o1, o2); | |
| 3746 } | |
| 3747 return o1; | |
| 3748 } | |
| 3749 | |
| 3750 /******************************* | |
| 3751 */ | |
| 3752 | |
| 3753 OPND* asm_add_exp() | |
| 3754 { | |
| 3755 OPND* o1 = asm_mul_exp(); | |
| 3756 OPND* o2; | |
| 3757 | |
| 3758 while (1) | |
| 3759 { | |
| 3760 switch (tok_value) | |
| 3761 { | |
| 3762 case TOKadd: | |
| 3763 asm_token(); | |
| 3764 o2 = asm_mul_exp(); | |
| 3765 o1 = asm_merge_opnds(o1, o2); | |
| 3766 break; | |
| 3767 | |
| 3768 case TOKmin: | |
| 3769 asm_token(); | |
| 3770 o2 = asm_mul_exp(); | |
| 3771 if (asm_isint(o1) && asm_isint(o2)) | |
| 3772 { | |
| 3773 o1.disp -= o2.disp; | |
| 3774 o2.disp = 0; | |
| 3775 } | |
| 3776 else | |
| 3777 o2.disp = - o2.disp; | |
| 3778 o1 = asm_merge_opnds(o1, o2); | |
| 3779 break; | |
| 3780 | |
| 3781 default: | |
| 3782 return o1; | |
| 3783 } | |
| 3784 } | |
| 3785 | |
| 3786 assert(false); | |
| 3787 } | |
| 3788 | |
| 3789 /******************************* | |
| 3790 */ | |
| 3791 | |
| 3792 OPND* asm_mul_exp() | |
| 3793 { | |
| 3794 OPND* o1; | |
| 3795 OPND* o2; | |
| 3796 OPND* popndTmp; | |
| 3797 | |
| 3798 //printf("+asm_mul_exp()\n"); | |
| 3799 o1 = asm_br_exp(); | |
| 3800 while (1) | |
| 3801 { | |
| 3802 switch (tok_value) | |
| 3803 { | |
| 3804 case TOKmul: | |
| 3805 asm_token(); | |
| 3806 o2 = asm_br_exp(); | |
| 3807 version (EXTRA_DEBUG) { | |
| 3808 printf("Star o1.isint=%d, o2.isint=%d, lbra_seen=%d\n", | |
| 3809 asm_isint(o1), asm_isint(o2), asm_TKlbra_seen ); | |
| 3810 } | |
| 3811 if (asm_isNonZeroInt(o1) && asm_isNonZeroInt(o2)) | |
| 3812 o1.disp *= o2.disp; | |
| 3813 else if (asm_TKlbra_seen && o1.pregDisp1 && asm_isNonZeroInt(o2)) | |
| 3814 { | |
| 3815 o1.uchMultiplier = o2.disp; | |
| 3816 version (EXTRA_DEBUG) { | |
| 3817 printf("Multiplier: %d\n", o1.uchMultiplier); | |
| 3818 } | |
| 3819 } | |
| 3820 else if (asm_TKlbra_seen && o2.pregDisp1 && asm_isNonZeroInt(o1)) | |
| 3821 { | |
| 3822 popndTmp = o2; | |
| 3823 o2 = o1; | |
| 3824 o1 = popndTmp; | |
| 3825 o1.uchMultiplier = o2.disp; | |
| 3826 version (EXTRA_DEBUG) { | |
| 3827 printf("Multiplier: %d\n", | |
| 3828 o1.uchMultiplier); | |
| 3829 } | |
| 3830 } | |
| 3831 else if (asm_isint(o1) && asm_isint(o2)) | |
| 3832 o1.disp *= o2.disp; | |
| 3833 else | |
| 3834 asmerr(EM_bad_operand); | |
| 3835 o2.disp = 0; | |
| 3836 o1 = asm_merge_opnds(o1, o2); | |
| 3837 break; | |
| 3838 | |
| 3839 case TOKdiv: | |
| 3840 asm_token(); | |
| 3841 o2 = asm_br_exp(); | |
| 3842 if (asm_isint(o1) && asm_isint(o2)) | |
| 3843 o1.disp /= o2.disp; | |
| 3844 else | |
| 3845 asmerr(EM_bad_integral_operand); | |
| 3846 o2.disp = 0; | |
| 3847 o1 = asm_merge_opnds(o1, o2); | |
| 3848 break; | |
| 3849 | |
| 3850 case TOKmod: | |
| 3851 asm_token(); | |
| 3852 o2 = asm_br_exp(); | |
| 3853 if (asm_isint(o1) && asm_isint(o2)) | |
| 3854 o1.disp %= o2.disp; | |
| 3855 else | |
| 3856 asmerr(EM_bad_integral_operand); | |
| 3857 o2.disp = 0; | |
| 3858 o1 = asm_merge_opnds(o1, o2); | |
| 3859 break; | |
| 3860 | |
| 3861 default: | |
| 3862 return o1; | |
| 3863 } | |
| 3864 } | |
| 3865 | |
| 3866 return o1; | |
| 3867 } | |
| 3868 | |
| 3869 OPND* asm_br_exp() | |
| 3870 { | |
| 3871 //printf("asm_br_exp()\n"); | |
| 3872 | |
| 3873 OPND* o1 = asm_una_exp(); | |
| 3874 OPND* o2; | |
| 3875 Declaration s; | |
| 3876 | |
| 3877 while (1) | |
| 3878 { | |
| 3879 switch (tok_value) | |
| 3880 { | |
| 3881 case TOKlbracket: | |
| 3882 { | |
| 3883 version (EXTRA_DEBUG) { | |
| 3884 printf("Saw a left bracket\n"); | |
| 3885 } | |
| 3886 asm_token(); | |
| 3887 asm_TKlbra_seen++; | |
| 3888 o2 = asm_cond_exp(); | |
| 3889 asm_TKlbra_seen--; | |
| 3890 asm_chktok(TOKrbracket,EM_rbra); | |
| 3891 version (EXTRA_DEBUG) { | |
| 3892 printf("Saw a right bracket\n"); | |
| 3893 } | |
| 3894 o1 = asm_merge_opnds(o1, o2); | |
| 3895 if (tok_value == TOKidentifier) | |
| 3896 { o2 = asm_una_exp(); | |
| 3897 o1 = asm_merge_opnds(o1, o2); | |
| 3898 } | |
| 3899 break; | |
| 3900 } | |
| 3901 default: | |
| 3902 return o1; | |
| 3903 } | |
| 3904 } | |
| 3905 | |
| 3906 assert(false); | |
| 3907 } | |
| 3908 | |
| 3909 /******************************* | |
| 3910 */ | |
| 3911 | |
| 3912 OPND* asm_una_exp() | |
| 3913 { | |
| 3914 OPND* o1; | |
| 3915 int op; | |
| 3916 Type ptype; | |
| 3917 Type ptypeSpec; | |
| 3918 ASM_JUMPTYPE ajt = ASM_JUMPTYPE_UNSPECIFIED; | |
| 3919 char bPtr = 0; | |
| 3920 | |
| 3921 switch (cast(int)tok_value) | |
| 3922 { | |
| 3923 static if (false) { | |
| 3924 case TOKand: | |
| 3925 asm_token(); | |
| 3926 o1 = asm_una_exp(); | |
| 3927 break; | |
| 3928 | |
| 3929 case TOKmul: | |
| 3930 asm_token(); | |
| 3931 o1 = asm_una_exp(); | |
| 3932 ++o1.indirect; | |
| 3933 break; | |
| 3934 } | |
| 3935 case TOKadd: | |
| 3936 asm_token(); | |
| 3937 o1 = asm_una_exp(); | |
| 3938 break; | |
| 3939 | |
| 3940 case TOKmin: | |
| 3941 asm_token(); | |
| 3942 o1 = asm_una_exp(); | |
| 3943 if (asm_isint(o1)) | |
| 3944 o1.disp = -o1.disp; | |
| 3945 break; | |
| 3946 | |
| 3947 case TOKnot: | |
| 3948 asm_token(); | |
| 3949 o1 = asm_una_exp(); | |
| 3950 if (asm_isint(o1)) | |
| 3951 o1.disp = !o1.disp; | |
| 3952 break; | |
| 3953 | |
| 3954 case TOKtilde: | |
| 3955 asm_token(); | |
| 3956 o1 = asm_una_exp(); | |
| 3957 if (asm_isint(o1)) | |
| 3958 o1.disp = ~o1.disp; | |
| 3959 break; | |
| 3960 | |
| 3961 static if (false) { | |
| 3962 case TOKlparen: | |
| 3963 // stoken() is called directly here because we really | |
| 3964 // want the INT token to be an INT. | |
| 3965 stoken(); | |
| 3966 if (type_specifier(&ptypeSpec)) /* if type_name */ | |
| 3967 { | |
| 3968 ptype = declar_abstract(ptypeSpec); | |
| 3969 /* read abstract_declarator */ | |
| 3970 fixdeclar(ptype);/* fix declarator */ | |
| 3971 type_free(ptypeSpec);/* the declar() function | |
| 3972 allocates the typespec again */ | |
| 3973 chktok(TOKrparen,EM_rpar); | |
| 3974 ptype.Tcount--; | |
| 3975 goto CAST_REF; | |
| 3976 } | |
| 3977 else | |
| 3978 { | |
| 3979 type_free(ptypeSpec); | |
| 3980 o1 = asm_cond_exp(); | |
| 3981 chktok(TOKrparen, EM_rpar); | |
| 3982 } | |
| 3983 break; | |
| 3984 } | |
| 3985 | |
| 3986 case TOKidentifier: | |
| 3987 // Check for offset keyword | |
| 3988 if (asmtok.ident == Id.offset) | |
| 3989 { | |
| 3990 if (!global.params.useDeprecated) | |
| 3991 error(asmstate.loc, "offset deprecated, use offsetof"); | |
| 3992 goto Loffset; | |
| 3993 } | |
| 3994 if (asmtok.ident == Id.offsetof) | |
| 3995 { | |
| 3996 Loffset: | |
| 3997 asm_token(); | |
| 3998 o1 = asm_cond_exp(); | |
| 3999 if (!o1) | |
| 4000 o1 = opnd_calloc(); | |
| 4001 o1.bOffset= true; | |
| 4002 } | |
| 4003 else | |
| 4004 o1 = asm_primary_exp(); | |
| 4005 break; | |
| 4006 | |
| 4007 case ASMTK.ASMTKseg: | |
| 4008 asm_token(); | |
| 4009 o1 = asm_cond_exp(); | |
| 4010 if (!o1) | |
| 4011 o1 = opnd_calloc(); | |
| 4012 o1.bSeg= true; | |
| 4013 break; | |
| 4014 | |
| 4015 case TOKint16: | |
| 4016 if (asmstate.ucItype != ITjump) | |
| 4017 { | |
| 4018 ptype = Type.tint16; | |
| 4019 goto TYPE_REF; | |
| 4020 } | |
| 4021 ajt = ASM_JUMPTYPE_SHORT; | |
| 4022 asm_token(); | |
| 4023 goto JUMP_REF2; | |
| 4024 | |
| 4025 case ASMTKnear: | |
| 4026 ajt = ASM_JUMPTYPE_NEAR; | |
| 4027 goto JUMP_REF; | |
| 4028 | |
| 4029 case ASMTKfar: | |
| 4030 ajt = ASM_JUMPTYPE_FAR; | |
| 4031 JUMP_REF: | |
| 4032 asm_token(); | |
| 4033 asm_chktok(cast(TOK) ASMTKptr, EM_ptr_exp); | |
| 4034 JUMP_REF2: | |
| 4035 o1 = asm_cond_exp(); | |
| 4036 if (!o1) | |
| 4037 o1 = opnd_calloc(); | |
| 4038 o1.ajt= ajt; | |
| 4039 break; | |
| 4040 | |
| 4041 case TOKint8: | |
| 4042 ptype = Type.tint8; | |
| 4043 goto TYPE_REF; | |
| 4044 case TOKint32: | |
| 4045 case ASMTKdword: | |
| 4046 ptype = Type.tint32; | |
| 4047 goto TYPE_REF; | |
| 4048 case TOKfloat32: | |
| 4049 ptype = Type.tfloat32; | |
| 4050 goto TYPE_REF; | |
| 4051 case ASMTKqword: | |
| 4052 case TOKfloat64: | |
| 4053 ptype = Type.tfloat64; | |
| 4054 goto TYPE_REF; | |
| 4055 case TOKfloat80: | |
| 4056 ptype = Type.tfloat80; | |
| 4057 goto TYPE_REF; | |
| 4058 case ASMTKword: | |
| 4059 ptype = Type.tint16; | |
| 4060 TYPE_REF: | |
| 4061 bPtr = 1; | |
| 4062 asm_token(); | |
| 4063 asm_chktok(cast(TOK) ASMTKptr, EM_ptr_exp); | |
| 4064 CAST_REF: | |
| 4065 o1 = asm_cond_exp(); | |
| 4066 if (!o1) | |
| 4067 o1 = opnd_calloc(); | |
| 4068 o1.ptype = ptype; | |
| 4069 o1.bPtr = bPtr; | |
| 4070 break; | |
| 4071 | |
| 4072 default: | |
| 4073 o1 = asm_primary_exp(); | |
| 4074 break; | |
| 4075 } | |
| 4076 return o1; | |
| 4077 } | |
| 4078 | |
| 4079 bool asm_isNonZeroInt(OPND* o) | |
| 4080 { | |
| 4081 if (!o || o.base || o.s) | |
| 4082 return false; | |
| 4083 | |
| 4084 return o.disp != 0; | |
| 4085 } | |
| 4086 | |
| 4087 OPND* asm_primary_exp() | |
| 4088 { | |
| 4089 OPND* o1 = null; | |
| 4090 OPND* o2 = null; | |
| 4091 Type ptype; | |
| 4092 Dsymbol s; | |
| 4093 Dsymbol scopesym; | |
| 4094 | |
| 4095 TOK tkOld; | |
| 4096 int global; | |
| 4097 REG* regp; | |
| 4098 | |
| 4099 global = 0; | |
| 4100 switch (cast(int)tok_value) | |
| 4101 { | |
| 4102 case TOKdollar: | |
| 4103 o1 = opnd_calloc(); | |
| 4104 o1.s = asmstate.psDollar; | |
| 4105 asm_token(); | |
| 4106 break; | |
| 4107 | |
| 4108 static if (false) { | |
| 4109 case TOKthis: | |
| 4110 strcpy(tok.TKid,cpp_name_this); | |
| 4111 } | |
| 4112 case TOKidentifier: | |
| 4113 case_ident: | |
| 4114 o1 = opnd_calloc(); | |
| 4115 regp = asm_reg_lookup(asmtok.ident.toChars()); | |
| 4116 if (regp !is null) | |
| 4117 { | |
| 4118 asm_token(); | |
| 4119 // see if it is segment override (like SS:) | |
| 4120 if (!asm_TKlbra_seen && | |
| 4121 (regp.ty & _seg) && | |
| 4122 tok_value == TOKcolon) | |
| 4123 { | |
| 4124 o1.segreg = regp; | |
| 4125 asm_token(); | |
| 4126 o2 = asm_cond_exp(); | |
| 4127 o1 = asm_merge_opnds(o1, o2); | |
| 4128 } | |
| 4129 else if (asm_TKlbra_seen) | |
| 4130 { // should be a register | |
| 4131 if (o1.pregDisp1) | |
| 4132 asmerr(EM_bad_operand); | |
| 4133 else | |
| 4134 o1.pregDisp1 = regp; | |
| 4135 } | |
| 4136 else | |
| 4137 { if (o1.base == null) | |
| 4138 o1.base = regp; | |
| 4139 else | |
| 4140 asmerr(EM_bad_operand); | |
| 4141 } | |
| 4142 break; | |
| 4143 } | |
| 4144 // If floating point instruction and id is a floating register | |
| 4145 else if (asmstate.ucItype == ITfloat && | |
| 4146 asm_is_fpreg(asmtok.ident.toChars())) | |
| 4147 { | |
| 4148 asm_token(); | |
| 4149 if (tok_value == TOKlparen) | |
| 4150 { | |
| 4151 uint n; | |
| 4152 | |
| 4153 asm_token(); | |
| 4154 asm_chktok(TOKint32v, EM_num); | |
| 4155 n = cast(uint)asmtok.uns64value; | |
| 4156 if (n > 7) | |
| 4157 asmerr(EM_bad_operand); | |
| 4158 o1.base = &(aregFp[n]); | |
| 4159 asm_chktok(TOKrparen, EM_rpar); | |
| 4160 } | |
| 4161 else | |
| 4162 o1.base = ®Fp; | |
| 4163 } | |
| 4164 else | |
| 4165 { | |
| 4166 if (asmstate.ucItype == ITjump) | |
| 4167 { | |
| 4168 s = null; | |
| 4169 if (asmstate.sc.func.labtab) | |
| 4170 s = asmstate.sc.func.labtab.lookup(asmtok.ident); | |
| 4171 if (!s) | |
| 4172 s = asmstate.sc.search(Loc(0), asmtok.ident, &scopesym); | |
| 4173 if (!s) | |
| 4174 { // Assume it is a label, and define that label | |
| 4175 s = asmstate.sc.func.searchLabel(asmtok.ident); | |
| 4176 } | |
| 4177 } | |
| 4178 else | |
| 4179 s = asmstate.sc.search(Loc(0), asmtok.ident, &scopesym); | |
| 4180 | |
| 4181 if (!s) | |
| 4182 asmerr(EM_undefined, asmtok.toChars()); | |
| 4183 | |
| 4184 Identifier id = asmtok.ident; | |
| 4185 asm_token(); | |
| 4186 if (tok_value == TOKdot) | |
| 4187 { | |
| 4188 Expression e; | |
| 4189 VarExp v; | |
| 4190 | |
| 4191 e = new IdentifierExp(asmstate.loc, id); | |
| 4192 while (1) | |
| 4193 { | |
| 4194 asm_token(); | |
| 4195 if (tok_value == TOKidentifier) | |
| 4196 { | |
| 4197 e = new DotIdExp(asmstate.loc, e, asmtok.ident); | |
| 4198 asm_token(); | |
| 4199 if (tok_value != TOKdot) | |
| 4200 break; | |
| 4201 } | |
| 4202 else | |
| 4203 { | |
| 4204 asmerr(EM_ident_exp); | |
| 4205 break; | |
| 4206 } | |
| 4207 } | |
| 4208 e = e.semantic(asmstate.sc); | |
| 4209 e = e.optimize(WANTvalue | WANTinterpret); | |
| 4210 if (e.isConst()) | |
| 4211 { | |
| 4212 if (e.type.isintegral()) | |
| 4213 { | |
| 4214 o1.disp = cast(int)e.toInteger(); | |
| 4215 goto Lpost; | |
| 4216 } | |
| 4217 else if (e.type.isreal()) | |
| 4218 { | |
| 4219 o1.real_ = e.toReal(); | |
| 4220 o1.ptype = e.type; | |
| 4221 goto Lpost; | |
| 4222 } | |
| 4223 else | |
| 4224 { | |
| 4225 asmerr(EM_bad_op, e.toChars()); | |
| 4226 } | |
| 4227 } | |
| 4228 else if (e.op == TOKvar) | |
| 4229 { | |
| 4230 v = cast(VarExp)e; | |
| 4231 s = v.var; | |
| 4232 } | |
| 4233 else | |
| 4234 { | |
| 4235 asmerr(EM_bad_op, e.toChars()); | |
| 4236 } | |
| 4237 } | |
| 4238 | |
| 4239 asm_merge_symbol(o1,s); | |
| 4240 | |
| 4241 /* This attempts to answer the question: is | |
| 4242 * char[8] foo; | |
| 4243 * of size 1 or size 8? Presume it is 8 if foo | |
| 4244 * is the last token of the operand. | |
| 4245 */ | |
| 4246 if (o1.ptype && tok_value != TOKcomma && tok_value != TOKeof) | |
| 4247 { | |
| 4248 for (; | |
| 4249 o1.ptype.ty == Tsarray; | |
| 4250 o1.ptype = o1.ptype.nextOf()) | |
| 4251 { | |
| 4252 ; | |
| 4253 } | |
| 4254 } | |
| 4255 | |
| 4256 Lpost: | |
| 4257 static if (false) { | |
| 4258 // for [] | |
| 4259 if (tok_value == TOKlbracket) | |
| 4260 o1 = asm_prim_post(o1); | |
| 4261 } | |
| 4262 goto Lret; | |
| 4263 } | |
| 4264 break; | |
| 4265 | |
| 4266 case TOKint32v: | |
| 4267 case TOKuns32v: | |
| 4268 o1 = opnd_calloc(); | |
| 4269 o1.disp = asmtok.int32value; | |
| 4270 asm_token(); | |
| 4271 break; | |
| 4272 | |
| 4273 case TOKfloat32v: | |
| 4274 o1 = opnd_calloc(); | |
| 4275 o1.real_ = asmtok.float80value; | |
| 4276 o1.ptype = Type.tfloat32; | |
| 4277 asm_token(); | |
| 4278 break; | |
| 4279 | |
| 4280 case TOKfloat64v: | |
| 4281 o1 = opnd_calloc(); | |
| 4282 o1.real_ = asmtok.float80value; | |
| 4283 o1.ptype = Type.tfloat64; | |
| 4284 asm_token(); | |
| 4285 break; | |
| 4286 | |
| 4287 case TOKfloat80v: | |
| 4288 o1 = opnd_calloc(); | |
| 4289 o1.real_ = asmtok.float80value; | |
| 4290 o1.ptype = Type.tfloat80; | |
| 4291 asm_token(); | |
| 4292 break; | |
| 4293 | |
| 4294 case ASMTKlocalsize: | |
| 4295 o1 = opnd_calloc(); | |
| 4296 o1.s = asmstate.psLocalsize; | |
| 4297 o1.ptype = Type.tint32; | |
| 4298 asm_token(); | |
| 4299 break; | |
| 4300 | |
| 4301 default: | |
| 4302 break; /// | |
| 4303 } | |
| 4304 Lret: | |
| 4305 return o1; | |
| 4306 } | |
| 4307 | |
| 4308 void asm_merge_symbol(OPND* o1, Dsymbol s) | |
| 4309 { | |
| 4310 Type ptype; | |
| 4311 VarDeclaration v; | |
| 4312 EnumMember em; | |
| 4313 | |
| 4314 //printf("asm_merge_symbol(s = %s %s)\n", s.kind(), s.toChars()); | |
| 4315 s = s.toAlias(); | |
| 4316 //printf("s = %s %s\n", s.kind(), s.toChars()); | |
| 4317 if (s.isLabel()) | |
| 4318 { | |
| 4319 o1.s = s; | |
| 4320 return; | |
| 4321 } | |
| 4322 | |
| 4323 v = s.isVarDeclaration(); | |
| 4324 if (v) | |
| 4325 { | |
| 4326 if (v.isParameter()) | |
| 4327 asmstate.statement.refparam = true; | |
| 4328 | |
| 4329 v.checkNestedReference(asmstate.sc, asmstate.loc); | |
| 4330 static if (false) { | |
| 4331 if (!v.isDataseg() && v.parent != asmstate.sc.parent && v.parent) | |
| 4332 { | |
| 4333 asmerr(EM_uplevel, v.toChars()); | |
| 4334 } | |
| 4335 } | |
| 4336 if (v.storage_class & STCfield) | |
| 4337 { | |
| 4338 o1.disp += v.offset; | |
| 4339 goto L2; | |
| 4340 } | |
| 4341 if ((v.isConst() | |
| 4342 ///version (DMDV2) { | |
| 4343 || v.isInvariant() || v.storage_class & STCmanifest | |
| 4344 ///} | |
| 4345 ) && !v.type.isfloating() && v.init) | |
| 4346 { | |
| 4347 ExpInitializer ei = v.init.isExpInitializer(); | |
| 4348 | |
| 4349 if (ei) | |
| 4350 { | |
| 4351 o1.disp = cast(int)ei.exp.toInteger(); | |
| 4352 return; | |
| 4353 } | |
| 4354 } | |
| 4355 } | |
| 4356 em = s.isEnumMember(); | |
| 4357 if (em) | |
| 4358 { | |
| 4359 o1.disp = cast(int)em.value.toInteger(); | |
| 4360 return; | |
| 4361 } | |
| 4362 o1.s = s; // a C identifier | |
| 4363 L2: | |
| 4364 Declaration d = s.isDeclaration(); | |
| 4365 if (!d) | |
| 4366 { | |
| 4367 asmerr("%s %s is not a declaration", s.kind(), s.toChars()); | |
| 4368 } | |
| 4369 else if (d.getType()) | |
| 4370 asmerr(EM_type_as_operand, d.getType().toChars()); | |
| 4371 else if (d.isTupleDeclaration()) { | |
| 4372 ; | |
| 4373 } else | |
| 4374 o1.ptype = d.type.toBasetype(); | |
| 4375 } | |
| 4376 | |
| 4377 REG[63] regtab = | |
| 4378 [ | |
| 4379 {"AL", _AL, _r8 | _al,}, | |
| 4380 {"AH", _AH, _r8,}, | |
| 4381 {"AX", _AX, _r16 | _ax,}, | |
| 4382 {"EAX", _EAX, _r32 | _eax,}, | |
| 4383 {"BL", _BL, _r8,}, | |
| 4384 {"BH", _BH, _r8,}, | |
| 4385 {"BX", _BX, _r16,}, | |
| 4386 {"EBX", _EBX, _r32,}, | |
| 4387 {"CL", _CL, _r8 | _cl,}, | |
| 4388 {"CH", _CH, _r8,}, | |
| 4389 {"CX", _CX, _r16,}, | |
| 4390 {"ECX", _ECX, _r32,}, | |
| 4391 {"DL", _DL, _r8,}, | |
| 4392 {"DH", _DH, _r8,}, | |
| 4393 {"DX", _DX, _r16 | _dx,}, | |
| 4394 {"EDX", _EDX, _r32,}, | |
| 4395 {"BP", _BP, _r16,}, | |
| 4396 {"EBP", _EBP, _r32,}, | |
| 4397 {"SP", _SP, _r16,}, | |
| 4398 {"ESP", _ESP, _r32,}, | |
| 4399 {"DI", _DI, _r16,}, | |
| 4400 {"EDI", _EDI, _r32,}, | |
| 4401 {"SI", _SI, _r16,}, | |
| 4402 {"ESI", _ESI, _r32,}, | |
| 4403 {"ES", _ES, _seg | _es,}, | |
| 4404 {"CS", _CS, _seg | _cs,}, | |
| 4405 {"SS", _SS, _seg | _ss,}, | |
| 4406 {"DS", _DS, _seg | _ds,}, | |
| 4407 {"GS", _GS, _seg | _gs,}, | |
| 4408 {"FS", _FS, _seg | _fs,}, | |
| 4409 {"CR0", 0, _special | _crn,}, | |
| 4410 {"CR2", 2, _special | _crn,}, | |
| 4411 {"CR3", 3, _special | _crn,}, | |
| 4412 {"CR4", 4, _special | _crn,}, | |
| 4413 {"DR0", 0, _special | _drn,}, | |
| 4414 {"DR1", 1, _special | _drn,}, | |
| 4415 {"DR2", 2, _special | _drn,}, | |
| 4416 {"DR3", 3, _special | _drn,}, | |
| 4417 {"DR4", 4, _special | _drn,}, | |
| 4418 {"DR5", 5, _special | _drn,}, | |
| 4419 {"DR6", 6, _special | _drn,}, | |
| 4420 {"DR7", 7, _special | _drn,}, | |
| 4421 {"TR3", 3, _special | _trn,}, | |
| 4422 {"TR4", 4, _special | _trn,}, | |
| 4423 {"TR5", 5, _special | _trn,}, | |
| 4424 {"TR6", 6, _special | _trn,}, | |
| 4425 {"TR7", 7, _special | _trn,}, | |
| 4426 {"MM0", 0, _mm,}, | |
| 4427 {"MM1", 1, _mm,}, | |
| 4428 {"MM2", 2, _mm,}, | |
| 4429 {"MM3", 3, _mm,}, | |
| 4430 {"MM4", 4, _mm,}, | |
| 4431 {"MM5", 5, _mm,}, | |
| 4432 {"MM6", 6, _mm,}, | |
| 4433 {"MM7", 7, _mm,}, | |
| 4434 {"XMM0", 0, _xmm,}, | |
| 4435 {"XMM1", 1, _xmm,}, | |
| 4436 {"XMM2", 2, _xmm,}, | |
| 4437 {"XMM3", 3, _xmm,}, | |
| 4438 {"XMM4", 4, _xmm,}, | |
| 4439 {"XMM5", 5, _xmm,}, | |
| 4440 {"XMM6", 6, _xmm,}, | |
| 4441 {"XMM7", 7, _xmm,}, | |
| 4442 ]; | |
| 4443 | |
| 4444 REG* asm_reg_lookup(string s) | |
| 4445 { | |
| 4446 //dbg_printf("asm_reg_lookup('%s')\n",s); | |
| 4447 | |
| 4448 for (int i = 0; i < regtab.length; i++) | |
| 4449 { | |
| 54 | 4450 if (regtab[i].regstr == s) |
| 0 | 4451 { |
| 4452 return ®tab[i]; | |
| 4453 } | |
| 4454 } | |
| 4455 | |
| 4456 return null; | |
| 4457 } | |
| 4458 | |
| 4459 int asm_is_fpreg(string szReg) | |
| 4460 { | |
| 4461 static if (true) { | |
| 4462 return(szReg.length == 2 && szReg[0] == 'S' && | |
| 4463 szReg[1] == 'T'); | |
| 4464 } else { | |
| 4465 return(szReg.length == 2 && (szReg[0] == 's' || szReg[0] == 'S') && | |
| 4466 (szReg[1] == 't' || szReg[1] == 'T')); | |
| 4467 } | |
|
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
|
4468 } |