mirror of https://github.com/brouhaha/dis6502.git
104 lines
1.8 KiB
C
104 lines
1.8 KiB
C
#include <stdio.h>
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#define NPREDEF 10
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extern char *predef[];
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extern int npredef;
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extern char *file;
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extern char *progname;
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extern int bopt;
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enum boot_mode { UNKNOWN, RAW_BINARY, ATARI_LOAD, C64_LOAD, ATARI_BOOT };
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extern int base_address, vector_address;
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extern int asmout;
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#ifndef AMIGA
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extern unsigned char f[];
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extern unsigned char d[];
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#else
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extern unsigned char *d,*f;
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#endif
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#define getword(x) (d[x] + (d[x+1] << 8))
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#define getbyte(x) (d[x])
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/* f bits */
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#define LOADED 1 /* Location loaded */
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#define JREF 2 /* Referenced as jump/branch dest */
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#define DREF 4 /* Referenced as data */
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#define SREF 8 /* Referenced as subroutine dest */
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#define NAMED 0x10 /* Has a name */
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#define TDONE 0x20 /* Has been traced */
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#define ISOP 0x40 /* Is a valid instruction opcode */
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struct info {
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char opn[4];
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int nb;
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int flag;
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};
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extern struct info optbl[];
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/* Flags */
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/* Where control goes */
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#define NORM 1
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#define JUMP 2
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#define FORK 4
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#define STOP 8
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#define CTLMASK (NORM|JUMP|FORK|STOP)
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/* Instruction format */
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#define IMM 0x20
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#define ABS 0x40
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#define ACC 0x80
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#define IMP 0x100
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#define INX 0x200
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#define INY 0x400
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#define ZPX 0x800
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#define ABX 0x1000
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#define ABY 0x2000
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#define REL 0x4000
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#define IND 0x8000
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#define ZPY 0x10000
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#define ZPG 0x20000
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#define ILL 0x40000
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#define ADRMASK (IMM|ABS|ACC|IMP|INX|INY|ZPX|ABX|ABY|REL|IND|ZPY|ZPG|ILL)
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struct ref_chain {
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struct ref_chain *next;
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int who;
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};
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struct ref_chain *get_ref();
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char *get_name();
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/* lex junk */
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#define EQ 256
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#define NUMBER 257
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#define NAME 258
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#define COMMENT 259
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#define LI 260
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#define TSTART 261
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#define TSTOP 262
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#define TRTSTAB 263
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extern FILE *yyin, *yyout;
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int lineno;
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int yywrap(), yyerror();
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char *emalloc();
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typedef union {
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int ival;
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char *sval;
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} VALUE;
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extern VALUE token;
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