mirror of
https://github.com/reactos/reactos.git
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160 lines
5.5 KiB
C
160 lines
5.5 KiB
C
/* Operand and instruction types */
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#define OP_REG 0x100 /* register */
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#define OP_IMM 0x200 /* immediate value */
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#define OP_IND 0x300 /* indirect memory reference */
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#define OP_BPTR 0x400 /* BYTE Pointer */
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#define OP_WPTR 0x500 /* WORD Pointer */
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#define OP_DPTR 0x600 /* DWORD Pointer */
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#define OP_UNK 0x900
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//#define INS_INVALID 0x00 /* Not a valid instruction */
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/* Branch Instruction types */
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#define INS_BRANCH 0x01 /* Unconditional branch */
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#define INS_COND 0x02 /* Conditional branch */
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#define INS_SUB 0x04 /* Jump to subroutine */
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#define INS_RET 0x08 /* Return from subroutine */
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/* modify ( 'w' ) instructions */
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#define INS_ARITH 0x10 /* Arithmetic inst */
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#define INS_LOGIC 0x20 /* logical inst */
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#define INS_FPU 0x40 /* Floating Point inst */
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#define INS_FLAG 0x80 /* Modify flags */
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/* misc Instruction Types */
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#define INS_MOVE 0x0100
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#define INS_ARRAY 0x0200 /* String and XLAT ops */
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#define INS_PTR 0x0400 /* Load EA/pointer */
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#define INS_STACK 0x1000 /* PUSH, POP, etc */
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#define INS_FRAME 0x2000 /* ENTER, LEAVE, etc */
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#define INS_SYSTEM 0x4000 /* CPUID, WBINVD, etc */
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/* Other info */
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#define BIG_ENDIAN_ORDER 0
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#define LITTLE_ENDIAN_ORDER 1
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struct code { /* size 100 */
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unsigned long rva;
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unsigned short flags;
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char mnemonic[16];
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char dest[32];
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char src[32];
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char aux[32];
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int mnemType;
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int destType;
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int srcType;
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int auxType;
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};
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/* struct used in Init routine */
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struct CPU_TYPE{
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char vendor;
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char model[12];
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};
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#define cpu_80386 0x01
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#define cpu_80486 0x02
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#define cpu_PENTIUM 0x04
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#define cpu_PENTMMX 0x08
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#define cpu_PENTPRO 0x10
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#define cpu_PENTIUM2 0x20
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#define cpu_PENTIUM3 0x40
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#define cpu_PENTIUM4 0x80
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#define FLAGS_MODRM 0x00001 //contains mod r/m byte
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#define FLAGS_8BIT 0x00002 //force 8-bit arguments
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#define FLAGS_16BIT 0x00004 //force 16-bit arguments
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#define FLAGS_32BIT 0x00008 //force 32-bit arguments
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#define FLAGS_REAL 0x00010 //real mode only
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#define FLAGS_PMODE 0x00020 //protected mode only
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#define FLAGS_PREFIX 0x00040 //for lock and rep prefix
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#define FLAGS_MMX 0x00080 //mmx instruction/registers
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#define FLAGS_FPU 0x00100 //fpu instruction/registers
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#define FLAGS_CJMP 0x00200 //codeflow - conditional jump
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#define FLAGS_JMP 0x00400 //codeflow - jump
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#define FLAGS_IJMP 0x00800 //codeflow - indexed jump
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#define FLAGS_CALL 0x01000 //codeflow - call
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#define FLAGS_ICALL 0x02000 //codeflow - indexed call
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#define FLAGS_RET 0x04000 //codeflow - return
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#define FLAGS_SEGPREFIX 0x08000 //segment prefix
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#define FLAGS_OPERPREFIX 0x10000 //operand prefix
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#define FLAGS_ADDRPREFIX 0x20000 //address prefix
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#define FLAGS_OMODE16 0x40000 //16-bit operand mode only
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#define FLAGS_OMODE32 0x80000 //32-bit operand mode only
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enum argtype {
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ARG_REG=1,ARG_IMM,ARG_NONE,ARG_MODRM,ARG_REG_AX,
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ARG_REG_ES,ARG_REG_CS,ARG_REG_SS,ARG_REG_DS,ARG_REG_FS,ARG_REG_GS,ARG_REG_BX,
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ARG_REG_CX,ARG_REG_DX,
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ARG_REG_SP,ARG_REG_BP,ARG_REG_SI,ARG_REG_DI,ARG_IMM8,ARG_RELIMM8,ARG_FADDR,ARG_REG_AL,
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ARG_MEMLOC,ARG_SREG,ARG_RELIMM,ARG_16REG_DX,ARG_REG_CL,ARG_REG_DL,ARG_REG_BL,ARG_REG_AH,
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ARG_REG_CH,ARG_REG_DH,ARG_REG_BH,ARG_MODREG,ARG_CREG,ARG_DREG,ARG_TREG_67,ARG_TREG,
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ARG_MREG,ARG_MMXMODRM,ARG_MODRM8,ARG_IMM_1,ARG_MODRM_FPTR,ARG_MODRM_S,ARG_MODRMM512,
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ARG_MODRMQ,ARG_MODRM_SREAL,ARG_REG_ST0,ARG_FREG,ARG_MODRM_PTR,ARG_MODRM_WORD,ARG_MODRM_SINT,
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ARG_MODRM_EREAL,ARG_MODRM_DREAL,ARG_MODRM_WINT,ARG_MODRM_LINT,ARG_REG_BC,ARG_REG_DE,
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ARG_REG_HL,ARG_REG_DE_IND,ARG_REG_HL_IND,ARG_REG_BC_IND,ARG_REG_SP_IND,ARG_REG_A,
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ARG_REG_B,ARG_REG_C,ARG_REG_D,ARG_REG_E,ARG_REG_H,ARG_REG_L,ARG_IMM16,ARG_REG_AF,
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ARG_REG_AF2,ARG_MEMLOC16,ARG_IMM8_IND,ARG_BIT,ARG_REG_IX,ARG_REG_IX_IND,ARG_REG_IY,
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ARG_REG_IY_IND,ARG_REG_C_IND,ARG_REG_I,ARG_REG_R,ARG_IMM16_A,ARG_MODRM16,ARG_SIMM8,
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ARG_IMM32,ARG_STRING,ARG_MODRM_BCD,ARG_PSTRING,ARG_DOSSTRING,ARG_CUNICODESTRING,
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ARG_PUNICODESTRING,ARG_NONEBYTE,ARG_XREG,ARG_XMMMODRM};
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typedef struct x86_inst {
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int flags;
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int destType, srcType, auxType;
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int cpu_type;
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int inst_type;
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char *mnem;
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char *dest, *src, *aux;
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} instr;
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#define GENREG_8 0x0001
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#define GENREG_16 0x0002
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#define GENREG_32 0x0004
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#define SEGREG 0x0008
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#define MMXREG 0x0010
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#define SIMDREG 0x0020
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#define DEBUGREG 0x0040
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#define CONTROLREG 0x0080
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#define TESTREG 0x0100
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#define NO_REG 0x100
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#define DIRECT_REG 0x200
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#define NO_BASE 0x400
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#define NO_INDEX 0x800
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#define DISP8 0x1000
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#define DISP32 0x2000
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#define HAS_SIB 0x4000
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#define HAS_MODRM 0x8000
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struct OPERAND { //arg1, arg2, arg3
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char * str; //temporary buffer for building arg text
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int type; //argument type
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int * flag; //pointer to CODE arg flags
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char * text; //pointer to CODE arg text
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};
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struct EA { //effective address [SIB/disp]
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int mode, flags;
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int mod, rm, reg;
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long disp;
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char sib[32];
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};
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struct modRM_byte {
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unsigned int mod : 2;
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unsigned int reg : 3;
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unsigned int rm : 3;
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};
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struct SIB_byte {
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unsigned int scale : 2;
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unsigned int index : 3;
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unsigned int base : 3;
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};
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typedef struct x86_table { //Assembly instruction tables
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instr *table; //Pointer to table of instruction encodings
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char divisor; // number to divide by for look up
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char mask; // bit mask for look up
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char minlim,maxlim; // limits on min/max entries.
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char modrmpos; // modrm byte position plus
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} asmtable;
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