108 lines
2.9 KiB
C
108 lines
2.9 KiB
C
/*
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* Apple // emulator for Linux: Definitions for debugger
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*
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* Copyright 1994 Alexander Jean-Claude Bottema
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* Copyright 1995 Stephen Lee
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* Copyright 1997, 1998 Aaron Culliney
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* Copyright 1998, 1999, 2000 Michael Deutschmann
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*
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* This software package is subject to the GNU General Public License
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* version 2 or later (your choice) as published by the Free Software
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* Foundation.
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*
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* THERE ARE NO WARRANTIES WHATSOEVER.
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*
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*/
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#ifndef A2_DEBUG_H
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#define A2_DEBUG_H
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#include "common.h"
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/* debugger defines */
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#define BUF_X 39
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#define BUF_Y 22
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#define MAX_BRKPTS 16
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#define SCREEN_X 81 // 80col + 1
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#define SCREEN_Y 24
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#define PROMPT_X 2
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#define PROMPT_Y BUF_Y - 1
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#define PROMPT_END_X BUF_X - 2
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#define command_line command_buf[PROMPT_Y]
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#define uchar unsigned char
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/* debugger commands */
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enum token_type { MEM, DIS, REGS, SETMEM, STEP, FINISH, UNTIL, GO, VM,
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BREAK, WATCH, CLEAR, IGNORE, STATUS, OPCODES, LC, DRIVE,
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SEARCH, HELP, LOG, BSAVE, BLOAD, SAVE, UNKNOWN };
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enum addressing_mode
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{
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addr_implied,
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addr_accumulator,
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addr_immediate,
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addr_zeropage,
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addr_zeropage_x,
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addr_zeropage_y,
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addr_absolute,
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addr_absolute_x,
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addr_absolute_y,
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addr_indirect,
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addr_indirect_x,
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addr_indirect_y,
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addr_j_indirect, /* non-zeropage indirects, used in JMP only */
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addr_j_indirect_x,
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addr_relative
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};
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struct opcode_struct
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{
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const char *mnemonic;
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enum addressing_mode mode;
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};
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extern const struct opcode_struct *opcodes;
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extern int step_next; /* stepping over instructions */
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extern char second_buf[BUF_Y][BUF_X]; /* scratch buffer for output */
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extern int num_buffer_lines; /* num lines of output */
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extern int arg1, arg2, arg3; /* command arguments */
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extern int breakpoints[MAX_BRKPTS]; /* memory breakpoints */
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extern int watchpoints[MAX_BRKPTS]; /* memory watchpoints */
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void clear_debugger_screen();
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void bload(FILE*, char*, int);
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void show_misc_info();
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unsigned char get_current_opcode();
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void dump_mem(int, int, int, int, int);
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void search_mem(char*, int, int);
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void set_mem(int, char*);
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void set_lc_mem(int, int, char*);
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void disasm(int, int, int, int);
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void clear_halt(int*, int);
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void set_halt(int*, int);
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void show_breakpts();
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void show_regs();
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void display_help();
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void show_lc_info();
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void show_disk_info();
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void do_step_or_next(int);
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void begin_cpu_step();
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void end_cpu_step();
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int at_haltpt();
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void set_halt_opcode(unsigned char opcode);
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void set_halt_65c02();
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void clear_halt_65c02();
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void clear_halt_opcode(unsigned char opcode);
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void show_opcode_breakpts();
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void c_stepping_yield();
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extern const struct opcode_struct opcodes_6502[256];
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extern const struct opcode_struct opcodes_65c02[256];
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extern const struct opcode_struct opcodes_undoc[256];
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extern const char* const disasm_templates[15];
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#endif
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