52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
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/* Disasm.h - definitions for Don's Tiny Disassembler */
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typedef unsigned long dword;
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typedef unsigned short word;
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typedef unsigned char byte;
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extern word memOp; /* actual operation performed */
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extern char *memName[]; /* name corresponding to memOp */
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enum { memNOP, memRead, memWrite, memRMW, memSegReg, memSegMem};
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extern word memSeg; /* value of segment of memory address */
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extern dword memLinear, /* offset of operand */
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memLinear2;
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extern word memSeg2, /* duplicate of above if dual mem op */
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memSize2, memOp2,
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memDouble; /* true if two-mem-operand instruction */
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extern word memSize; /* bytes of memory of operation */
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enum { MemByte=1, MemWord=2, MemDWord=4, MemQWord=8, MemTword=10,
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Adr4, Adr6=6};
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enum { memNoSeg, memES, memCS, memSS, memDS, memFS, memGS};
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enum {strCX=1, strSI=2, strDI=4, segDS=8, segES=16, segFS=32, segGS=64};
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extern word gpSafe, /* 1 if may continue instruction */
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gpRegs, /* regs which instruction modifies as side effect */
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gpStack; /* amount stack is changed by */
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/* DisAsm86 is my nifty 80x86 disassembler (even handles 32 bit code) */
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/* Given current CS:IP, it disassembles the instruction, and returns */
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/* the number of code bytes used, and a pointer to a static array of */
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/* chars holding the disassembly. It also sets up a bunch of global */
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/* vars indicating what memory operations occurred, to aid in decoding */
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/* the fault type. */
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extern char *DisAsm86(byte far *cp, int *len);
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/* Same as DisAsm86, but assumes 32 bit code and data */
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extern char *DisAsm386(byte far *cp, int *len);
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extern char hexData[];
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#if !defined(MS_DOS)
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#define sprintf wsprintf
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#define vsprintf wvsprintf
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#define FP void far *
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#else
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#define FP void *
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#endif
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