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#ifdef DEBUG
#define dprintf printf
#else
#define dprintf //
#endif
// token classes and types
#define ASM_CLASS_MASK 0xff00
#define ASM_TYPE_MASK 0x00ff
#define ASM_EOL_CLASS 0x000
#define ASM_ADDOP_CLASS 0x100
#define ASM_ADDOP_PLUS 0x101
#define ASM_ADDOP_MINUS 0x102
#define ASM_MULOP_CLASS 0x200
#define ASM_MULOP_MULT 0x201
#define ASM_MULOP_DIVIDE 0x202
#define ASM_MULOP_MOD 0x203
#define ASM_MULOP_SHL 0x204
#define ASM_MULOP_SHR 0x205
#define ASM_ANDOP_CLASS 0x300
#define ASM_NOTOP_CLASS 0x400
#define ASM_OROP_CLASS 0x500
#define ASM_OROP_OR 0x501
#define ASM_OROP_XOR 0x502
#define ASM_RELOP_CLASS 0x600
#define ASM_RELOP_EQ 0x601
#define ASM_RELOP_NE 0x602
#define ASM_RELOP_LE 0x603
#define ASM_RELOP_LT 0x604
#define ASM_RELOP_GE 0x605
#define ASM_RELOP_GT 0x606
#define ASM_UNOP_CLASS 0x700
#define ASM_UNOP_BY 0x701 // UNDONE
#define ASM_UNOP_WO 0x702 // UNDONE
#define ASM_UNOP_DW 0x703 // UNDONE
#define ASM_UNOP_POI 0x704 // UNDONE
#define ASM_LOWOP_CLASS 0x800
#define ASM_LOWOP_LOW 0x801
#define ASM_LOWOP_HIGH 0x802
#define ASM_PTROP_CLASS 0x900
#define ASM_SIZE_CLASS 0xa00
#define ASM_SIZE_BYTE (0xa00 + sizeB)
#define ASM_SIZE_WORD (0xa00 + sizeW)
#define ASM_SIZE_DWORD (0xa00 + sizeD)
#define ASM_SIZE_FWORD (0xa00 + sizeF)
#define ASM_SIZE_QWORD (0xa00 + sizeQ)
#define ASM_SIZE_TBYTE (0xa00 + sizeT)
#define ASM_SIZE_SWORD (0xa00 + sizeS)
#define ASM_OFFOP_CLASS 0xb00
#define ASM_COLNOP_CLASS 0xc00
#define ASM_LPAREN_CLASS 0xd00
#define ASM_RPAREN_CLASS 0xe00
#define ASM_LBRACK_CLASS 0xf00
#define ASM_RBRACK_CLASS 0x1000
#define ASM_DOTOP_CLASS 0x1100
#define ASM_SEGOVR_CLASS 0x1200
#define ASM_SEGMENT_CLASS 0x1300 // value has 16-bit value
#define ASM_COMMA_CLASS 0x1400
#define ASM_REG_CLASS 0x1500
#define ASM_REG_BYTE 0x1501
#define ASM_REG_WORD 0x1502
#define ASM_REG_DWORD 0x1503
#define ASM_REG_SEGMENT 0x1504
#define ASM_REG_CONTROL 0x1505
#define ASM_REG_DEBUG 0x1506
#define ASM_REG_TRACE 0x1507
#define ASM_REG_FLOAT 0x1508
#define ASM_REG_INDFLT 0x1509
#define ASM_NUMBER_CLASS 0x1600
#define ASM_SIGNED_NUMBER_CLASS 0x1601
#define ASM_SYMBOL_CLASS 0x1700
#define ASM_ERROR_CLASS 0xff00 // only used for PeekToken
#define tEnd 0x80
#define eEnd 0x40
// template flag and operand tokens
enum { asNone, as0x0a, asOpRg, asSiz0, asSiz1, asWait, asSeg, asFSiz, asMpNx, asPrfx,
asReg0, asReg1, asReg2, asReg3, asReg4, asReg5, asReg6, asReg7,
opnAL, opnAX, opneAX, opnCL, opnDX, opnAp, opnEb, opnEw, opnEv, opnGb, opnGw, opnGv, opnGd, opnIm1, opnIm3, opnIb, opnIw, opnIv, opnJb, opnJv, opnM, opnMa, opnMb, opnMw, opnMd, opnMp, opnMs, opnMq, opnMt, opnMv, opnCd, opnDd, opnTd, opnRd, opnSt, opnSti, opnSeg, opnSw, opnXb, opnXv, opnYb, opnYv, opnOb, opnOv, opnIbe, };
#define asRegBase asReg0 // first of REG flags
#define opnBase opnAL // first template operand type
// if less, then flag, else operand
enum { segX, segES, segCS, segSS, segDS, segFS, segGS };
enum { typNULL, // no defined type
typAX, // general register, value EAX
typCL, // general register, value ECX
typDX, // general register, value EDX
typAbs, // absolute type (direct address)
typExp, // expr (mod-r/m) general register or memory pointer
typGen, // general register
typReg, // general register (special reg MOV)
typIm1, // immediate, value 1
typIm3, // immediate, value 3
typImm, // immediate
typJmp, // jump relative offset
typMem, // memory pointer
typCtl, // control register
typDbg, // debug register
typTrc, // trace register
typSt, // floating point top-of-stack
typSti, // floating point index-on-stack
typSeg, // segment register (PUSH/POP opcode)
typSgr, // segment register (MOV opcode)
typXsi, // string source address
typYdi, // string destination address
typOff, // memory offset
typImmEx, // immediate, sign-extended
};
enum { regG, // general register
regS, // segment register
regC, // control register
regD, // debug register
regT, // trace register
regF, // float register (st)
regI // float-index register (st(n))
};
enum { indAX, // index for EAX, AX, AL
indCX, // index for ECX, CX, CL
indDX, // index for EDX, DX, DL
indBX, // index for EBX, BX, BL
indSP, // index for ESP, SP, AH
indBP, // index for EBP, BP, CH
indSI, // index for ESI, SI, DH
indDI // index for EDI, DI, BH
};
enum { sizeX, // no size
sizeB, // byte size
sizeW, // word size
sizeV, // variable size (word or dword)
sizeD, // dword size
sizeP, // pointer size (dword or fword)
sizeA, // dword or qword
sizeF, // fword
sizeQ, // qword
sizeT, // ten-byte
sizeS // sword
};
// mapping from operand token to operand type (class and opt. value)
typedef struct tagOPNDTYPE { UCHAR type; UCHAR size; } OPNDTYPE, *POPNDTYPE;
typedef struct tagASM_VALUE { ULONG value; USHORT segment; UCHAR reloc; UCHAR size; UCHAR flags; UCHAR segovr; UCHAR index; UCHAR base; UCHAR scale; } ASM_VALUE, *PASM_VALUE;
// bit values of flags in ASM_VALUE
// flags are mutually exclusive
#define fREG 0x80 // set if register
#define fIMM 0x40 // set if immediate
#define fFPTR 0x20 // set if far ptr
#define fPTR 0x10 // set if memory ptr (no reg index)
#define fPTR16 0x08 // set if memory ptr with 16-bit reg index
#define fPTR32 0x04 // set if memory ptr with 32-bit reg index
#define fSIGNED 0x02 // combine with fIMM for signed immediate
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