168 lines
5.5 KiB
C
168 lines
5.5 KiB
C
/*
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** @(#) dis.h, Ver. 2.1 created 00:00:00 87/09/01
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*/
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* *
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* Copyright (C) 1987 G. M. Harding, all rights reserved *
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* *
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* Permission to copy and redistribute is hereby granted, *
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* provided full source code, with all copyright notices, *
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* accompanies any redistribution. *
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* *
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* This file contains declarations and definitions used by *
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* the 8088 disassembler program. The program was designed *
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* for execution on a machine of its own type (i.e., it is *
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* not designed as a cross-disassembler); consequently, A *
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* SIXTEEN-BIT INTEGER SIZE HAS BEEN ASSUMED. This assump- *
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* tion is not particularly important, however, except in *
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* the machine-specific portions of the code (i.e., the *
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* handler routines and the optab[] array). It should be *
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* possible to override this assumption, for execution on *
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* 32-bit machines, by use of a pre-processor directive *
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* (see below); however, this has not been tested. *
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* *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include <sys/types.h>
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#include <a.out.h> /* Object file format definitions */
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#include <fcntl.h> /* System file-control definitions */
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h> /* System standard I/O definitions */
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#define MAXSYM 1500 /* Maximum entries in symbol table */
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extern struct nlist /* Array to hold the symbol table */
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symtab[MAXSYM];
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extern struct reloc /* Array to hold relocation table */
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relo[MAXSYM];
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extern int symptr; /* Index into the symtab[] array */
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extern int relptr; /* Index into the relo[] array */
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struct opcode /* Format for opcode data records */
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{
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char *text; /* Pointer to mnemonic text */
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void (*func)(); /* Pointer to handler routine */
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unsigned min; /* Minimum # of object bytes */
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unsigned max; /* Maximum # of object bytes */
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};
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extern struct opcode /* Array to hold the opcode table */
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optab[256];
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extern char *REGS[]; /* Table of register names */
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extern char *REGS0[]; /* Mode 0 register name table */
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extern char *REGS1[]; /* Mode 1 register name table */
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#define AL REGS[0] /* CPU register manifests */
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#define CL REGS[1]
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#define DL REGS[2]
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#define BL REGS[3]
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#define AH REGS[4]
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#define CH REGS[5]
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#define DH REGS[6]
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#define BH REGS[7]
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#define AX REGS[8]
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#define CX REGS[9]
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#define DX REGS[10]
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#define BX REGS[11]
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#define SP REGS[12]
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#define BP REGS[13]
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#define SI REGS[14]
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#define DI REGS[15]
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#define ES REGS[16]
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#define CS REGS[17]
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#define SS REGS[18]
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#define DS REGS[19]
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#define BX_SI REGS0[0]
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#define BX_DI REGS0[1]
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#define BP_SI REGS0[2]
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#define BP_DI REGS0[3]
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extern int symrank[6][6]; /* Symbol type/rank matrix */
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extern unsigned long PC; /* Current program counter */
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extern int segflg; /* Flag: segment override in effect */
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extern int objflg; /* Flag: output object as a comment */
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#define OBJMAX 8 /* Size of the object code buffer */
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extern unsigned char /* Internal buffer for object code */
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objbuf[OBJMAX];
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extern int objptr; /* Index into the objbuf[] array */
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extern char ADD[], /* Opcode family mnemonic strings */
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OR[],
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ADC[],
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SBB[],
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AND[],
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SUB[],
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XOR[],
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CMP[],
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NOT[],
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NEG[],
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MUL[],
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DIV[],
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MOV[],
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ESC[],
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TEST[],
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AMBIG[];
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extern char *OPFAM[]; /* Indexed mnemonic family table */
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extern struct exec HDR; /* Holds the object file's header */
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#define LOOK_ABS 0 /* Arguments to lookup() function */
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#define LOOK_REL 1
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#define LOOK_LNG 2
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#define TR_STD 0 /* Arguments to mtrans() function */
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#define TR_SEG 8
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/* Macro for byte input primitive */
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#define FETCH(p) ++PC; p = getchar() & 0xff; objbuf[objptr++] = p
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/* disfp.c */
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_PROTOTYPE(void eshand, (int j ));
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_PROTOTYPE(void fphand, (int j ));
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_PROTOTYPE(void inhand, (int j ));
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/* dishand.c */
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_PROTOTYPE(void objini, (int j ));
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_PROTOTYPE(void objout, (void));
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_PROTOTYPE(void badseq, (int j, int k ));
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_PROTOTYPE(void dfhand, (int j ));
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_PROTOTYPE(void sbhand, (int j ));
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_PROTOTYPE(void aohand, (int j ));
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_PROTOTYPE(void sjhand, (int j ));
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_PROTOTYPE(void imhand, (int j ));
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_PROTOTYPE(void mvhand, (int j ));
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_PROTOTYPE(void mshand, (int j ));
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_PROTOTYPE(void pohand, (int j ));
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_PROTOTYPE(void cihand, (int j ));
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_PROTOTYPE(void mihand, (int j ));
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_PROTOTYPE(void mqhand, (int j ));
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_PROTOTYPE(void tqhand, (int j ));
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_PROTOTYPE(void rehand, (int j ));
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_PROTOTYPE(void mmhand, (int j ));
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_PROTOTYPE(void srhand, (int j ));
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_PROTOTYPE(void aahand, (int j ));
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_PROTOTYPE(void iohand, (int j ));
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_PROTOTYPE(void ljhand, (int j ));
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_PROTOTYPE(void mahand, (int j ));
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_PROTOTYPE(void mjhand, (int j ));
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/* dismain.c */
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_PROTOTYPE(int main, (int argc, char **argv ));
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/* distabs.c */
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_PROTOTYPE(char *getnam, (int k ));
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_PROTOTYPE(int lookext, (long off, long loc, char *buf ));
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_PROTOTYPE(char *lookup, (long addr, int type, int kind, long ext ));
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_PROTOTYPE(char *mtrans, (int c, int m, int type ));
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_PROTOTYPE(void mtrunc, (char *a ));
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