mirror of
https://github.com/jamessanford/kegs.git
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1196 lines
24 KiB
C
1196 lines
24 KiB
C
/************************************************************************/
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/* KEGS: Apple //gs Emulator */
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/* Copyright 2002 by Kent Dickey */
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/* */
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/* This code is covered by the GNU GPL */
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/* */
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/* The KEGS web page is kegs.sourceforge.net */
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/* You may contact the author at: kadickey@alumni.princeton.edu */
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/************************************************************************/
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const char rcsid_dis_c[] = "@(#)$KmKId: dis.c,v 1.103 2004-11-24 16:41:41-05 kentd Exp $";
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#include <stdio.h>
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#include "defc.h"
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#include <stdarg.h>
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#include "disas.h"
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#define LINE_SIZE 160
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extern byte *g_memory_ptr;
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extern byte *g_slow_memory_ptr;
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extern int halt_sim;
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extern int enter_debug;
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extern int g_c068_statereg;
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extern word32 stop_run_at;
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extern int Verbose;
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extern int Halt_on;
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extern int g_testing_enabled;
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extern int g_fullscreen;
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extern int g_config_control_panel;
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int g_num_breakpoints = 0;
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word32 g_breakpts[MAX_BREAK_POINTS];
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extern int g_irq_pending;
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extern Engine_reg engine;
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#define W_BUF_LEN 128
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char w_buff[W_BUF_LEN];
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int g_stepping = 0;
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word32 list_kpc;
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int hex_line_len;
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word32 a1,a2,a3;
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word32 g_a4, g_a4bank;
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int a1bank, a2bank, a3bank;
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char *line_ptr;
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int mode,old_mode;
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int got_num;
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// OG replaced by HALT_WANTTOQUIT
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//int g_quit_sim_now = 0;
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int
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get_num()
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{
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int tmp1;
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a2 = 0;
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got_num = 0;
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while(1) {
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if(mode == 0 && got_num != 0) {
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/*
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printf("In getnum, mode =0, setting a1,a3 = a2\n");
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printf("a2: %x\n", a2);
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*/
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a3 = a2;
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a3bank = a2bank;
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a1 = a2;
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a1bank = a2bank;
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}
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tmp1 = *line_ptr++ & 0x7f;
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if(tmp1 >= '0' && tmp1 <= '9') {
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a2 = (a2 << 4) + tmp1 - '0';
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got_num = 1;
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continue;
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}
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if(tmp1 >= 'a' && tmp1 <= 'f') {
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a2 = (a2 << 4) + tmp1 - 'a' + 10;
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got_num = 1;
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continue;
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}
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if(tmp1 == '/') {
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a2bank = a2;
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a2 = 0;
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continue;
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}
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return tmp1;
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}
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}
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void
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debugger_help()
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{
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printf("KEGS Debugger help (courtesy Fredric Devernay\n");
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printf("General command syntax: [bank]/[address][command]\n");
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printf("e.g. 'e1/0010B' to set a breakpoint at the interrupt jump pt\n");
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printf("Enter all addresses using lower-case\n");
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printf("As with the IIgs monitor, you can omit the bank number after\n");
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printf("having set it: 'e1/0010B' followed by '14B' will set\n");
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printf("breakpoints at e1/0010 and e1/0014\n");
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printf("\n");
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printf("g Go\n");
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printf("[bank]/[addr]g Go from [bank]/[address]\n");
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printf("s Step one instruction\n");
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printf("[bank]/[addr]s Step one instr at [bank]/[address]\n");
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printf("[bank]/[addr]B Set breakpoint at [bank]/[address]\n");
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printf("B Show all breakpoints\n");
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printf("[bank]/[addr]D Delete breakpoint at [bank]/[address]\n");
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printf("[bank]/[addr1].[addr2] View memory\n");
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printf("[bank]/[addr]L Disassemble memory\n");
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printf("P Dump the trace to 'pc_log_out'\n");
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printf("Z Dump SCC state\n");
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printf("I Dump IWM state\n");
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printf("[drive].[track]I Dump IWM state\n");
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printf("E Dump Ensoniq state\n");
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printf("[osc]E Dump oscillator [osc] state\n");
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printf("R Dump dtime array and events\n");
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printf("T Show toolbox log\n");
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printf("[bank]/[addr]T Dump tools using ptr [bank]/[addr]\n");
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printf(" as 'tool_set_info'\n");
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printf("[mode]V XOR verbose with 1=DISK, 2=IRQ,\n");
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printf(" 4=CLK,8=SHADOW,10=IWM,20=DOC,\n");
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printf(" 40=ABD,80=SCC, 100=TEST, 200=VIDEO\n");
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printf("[mode]H XOR halt_on with 1=SCAN_INT,\n");
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printf(" 2=IRQ, 4=SHADOW_REG, 8=C70D_WRITES\n");
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printf("r Reset\n");
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printf("[0/1]=m Changes m bit for l listings\n");
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printf("[0/1]=x Changes x bit for l listings\n");
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printf("[t]=z Stops at absolute time t (obsolete)\n");
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printf("S show_bankptr_bank0 & smartport errs\n");
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printf("P show_pmhz\n");
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printf("A show_a2_line_stuff show_adb_log\n");
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printf("Ctrl-e Dump registers\n");
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printf("[bank]/[addr1].[addr2]us[file] Save mem area to [file]\n");
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printf("[bank]/[addr1].[addr2]ul[file] Load mem area from [file]\n");
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printf("v Show video information\n");
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printf("q Exit Debugger (and KEGS)\n");
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}
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void
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do_debug_intfc()
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{
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char linebuf[LINE_SIZE];
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int slot_drive;
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int track;
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int osc;
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int done;
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int ret_val;
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g_config_control_panel = 1;
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hex_line_len = 0x10;
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a1 = 0; a2 = 0; a3 = 0; g_a4 = 0;
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a1bank = 0; a2bank = 0; a3bank = 0; g_a4bank = 0;
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list_kpc = engine.kpc;
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g_stepping = 0;
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mode = 0; old_mode = 0;
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done = 0;
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stop_run_at = -1;
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x_auto_repeat_on(0);
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g_fullscreen = 0;
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x_full_screen(0);
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// OG use HALT_WANTTOQUIT instead of g_quit_sim_now
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if (halt_sim&HALT_WANTTOQUIT)
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{
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printf("Exiting immediately\n");
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return;
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}
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printf("Type 'h' for help\n");
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while(!done) {
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printf("> "); fflush(stdout);
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if(read_line(linebuf,LINE_SIZE-1) <= 0) {
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done = 1;
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continue;
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}
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line_ptr = linebuf;
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/*
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printf("input line: :%s:\n", linebuf);
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printf("mode: %d\n", mode);
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*/
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mode = 0;
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while(*line_ptr != 0) {
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ret_val = get_num();
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/*
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printf("ret_val: %x, got_num= %d\n", ret_val,
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got_num);
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*/
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old_mode = mode;
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mode = 0;
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switch(ret_val) {
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case 'h':
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debugger_help();
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break;
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case 'R':
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show_dtime_array();
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show_all_events();
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break;
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case 'I':
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slot_drive = -1;
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track = -1;
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if(got_num) {
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if(old_mode == '.') {
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slot_drive = a1;
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}
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track = a2;
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}
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iwm_show_track(slot_drive, track);
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iwm_show_stats();
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break;
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case 'E':
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osc = -1;
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if(got_num) {
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osc = a2;
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}
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doc_show_ensoniq_state(osc);
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break;
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case 'T':
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if(got_num) {
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show_toolset_tables(a2bank, a2);
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} else {
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show_toolbox_log();
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}
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break;
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case 'v':
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if(got_num) {
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dis_do_compare();
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} else {
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video_show_debug_info();
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}
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break;
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case 'V':
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printf("g_irq_pending: %05x\n", g_irq_pending);
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printf("Setting Verbose ^= %04x\n", a1);
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Verbose ^= a1;
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printf("Verbose is now: %04x\n", Verbose);
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break;
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case 'H':
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printf("Setting Halt_on ^= %04x\n", a1);
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Halt_on ^= a1;
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printf("Halt_on is now: %04x\n", Halt_on);
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break;
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case 'r':
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do_reset();
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list_kpc = engine.kpc;
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break;
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case 'm':
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if(old_mode == '=') {
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if(!a1) {
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engine.psr &= ~0x20;
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} else {
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engine.psr |= 0x20;
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}
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if(engine.psr & 0x100) {
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engine.psr |= 0x30;
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}
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} else {
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dis_do_memmove();
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}
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break;
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case 'p':
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dis_do_pattern_search();
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break;
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case 'x':
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if(old_mode == '=') {
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if(!a1) {
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engine.psr &= ~0x10;
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} else {
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engine.psr |= 0x10;
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}
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if(engine.psr & 0x100) {
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engine.psr |= 0x30;
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}
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}
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break;
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case 'z':
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if(old_mode == '=') {
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stop_run_at = a1;
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printf("Calling add_event for t:%08x\n",
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a1);
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add_event_stop((double)a1);
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printf("set stop_run_at = %x\n", a1);
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}
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break;
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case 'l': case 'L':
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do_debug_list();
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break;
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case 'Z':
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show_scc_log();
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show_scc_state();
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break;
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case 'S':
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show_bankptrs_bank0rdwr();
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smartport_error();
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break;
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case 'C':
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show_xcolor_array();
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break;
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case 'P':
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show_pc_log();
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break;
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case 'M':
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show_pmhz();
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break;
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case 'A':
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show_a2_line_stuff();
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show_adb_log();
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break;
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case 's':
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g_stepping = 1;
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if(got_num) {
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engine.kpc = (a2bank<<16) + (a2&0xffff);
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}
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mode = 's';
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list_kpc = engine.kpc;
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break;
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case 'B':
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if(got_num) {
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printf("got_num: %d, a2bank: %x, a2: %x\n", got_num, a2bank, a2);
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set_bp((a2bank << 16) + a2);
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} else {
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show_bp();
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}
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break;
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case 'D':
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if(got_num) {
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printf("got_num: %d, a2bank: %x, a2: %x\n", got_num, a2bank, a2);
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delete_bp((a2bank << 16) + a2);
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}
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break;
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case 'g':
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case 'G':
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printf("Going..\n");
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g_stepping = 0;
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if(got_num) {
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engine.kpc = (a2bank<<16) + (a2&0xffff);
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}
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if(ret_val == 'G' && g_testing_enabled) {
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do_gen_test(got_num, a2);
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} else {
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do_go();
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}
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list_kpc = engine.kpc;
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break;
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case 'q':
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case 'Q':
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printf("Exiting debugger\n");
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return;
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break;
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case 'u':
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printf("Unix commands\n");
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do_debug_unix();
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break;
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case ':': case '.':
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case '+': case '-':
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case '=': case ',':
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mode = ret_val;
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printf("Setting mode = %x\n", mode);
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break;
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case ' ': case '\t':
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if(!got_num) {
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mode = old_mode;
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break;
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}
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do_blank();
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break;
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case '<':
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g_a4 = a2;
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g_a4bank = a2bank;
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break;
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case 0x05: /* ctrl-e */
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show_regs();
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break;
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case '\n':
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*line_ptr = 0;
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if(old_mode == 's') {
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do_blank();
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break;
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}
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if(line_ptr == &linebuf[1]) {
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a2 = a1 | (hex_line_len - 1);
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show_hex_mem(a1bank,a1,a2bank,a2, -1);
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a1 = a2 + 1;
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} else {
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if(got_num == 1 || mode == 's') {
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do_blank();
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}
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}
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break;
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case 'w':
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read_line(w_buff, W_BUF_LEN);
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break;
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default:
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printf("\nUnrecognized command: %s\n",linebuf);
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*line_ptr = 0;
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break;
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}
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}
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}
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printf("Console closed.\n");
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}
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word32
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dis_get_memory_ptr(word32 addr)
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{
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word32 tmp1, tmp2, tmp3;
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tmp1 = get_memory_c(addr, 0);
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tmp2 = get_memory_c(addr + 1, 0);
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tmp3 = get_memory_c(addr + 2, 0);
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return (tmp3 << 16) + (tmp2 << 8) + tmp1;
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}
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void
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show_one_toolset(FILE *toolfile, int toolnum, word32 addr)
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{
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word32 rout_addr;
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int num_routs;
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int i;
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num_routs = dis_get_memory_ptr(addr);
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fprintf(toolfile, "Tool 0x%02x, table: 0x%06x, num_routs:%03x\n",
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toolnum, addr, num_routs);
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for(i = 1; i < num_routs; i++) {
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rout_addr = dis_get_memory_ptr(addr + 4*i);
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fprintf(toolfile, "%06x = %02x%02x\n", rout_addr, i, toolnum);
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}
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}
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void
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show_toolset_tables(word32 a2bank, word32 addr)
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{
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FILE *toolfile;
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word32 tool_addr;
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int num_tools;
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int i;
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addr = (a2bank << 16) + (addr & 0xffff);
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toolfile = fopen("tool_set_info", "w");
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if(toolfile == 0) {
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fprintf(stderr, "fopen of tool_set_info failed: %d\n", errno);
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exit(2);
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}
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num_tools = dis_get_memory_ptr(addr);
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fprintf(toolfile, "There are 0x%02x tools using ptr at %06x\n",
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num_tools, addr);
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for(i = 1; i < num_tools; i++) {
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tool_addr = dis_get_memory_ptr(addr + 4*i);
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show_one_toolset(toolfile, i, tool_addr);
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}
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fclose(toolfile);
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}
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#ifndef TEST65
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void
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do_gen_test(int got_num, int base_seed)
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{
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/* dummy */
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}
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#endif
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void
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set_bp(word32 addr)
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{
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int count;
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printf("About to set BP at %06x\n", addr);
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count = g_num_breakpoints;
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if(count >= MAX_BREAK_POINTS) {
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printf("Too many (0x%02x) breakpoints set!\n", count);
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return;
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}
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g_breakpts[count] = addr;
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g_num_breakpoints = count + 1;
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fixup_brks();
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}
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void
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show_bp()
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{
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int i;
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printf("Showing breakpoints set\n");
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for(i = 0; i < g_num_breakpoints; i++) {
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printf("bp:%02x: %06x\n", i, g_breakpts[i]);
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}
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}
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void
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delete_bp(word32 addr)
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{
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int count;
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int hit;
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int i;
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printf("About to delete BP at %06x\n", addr);
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count = g_num_breakpoints;
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hit = -1;
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for(i = 0; i < count; i++) {
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if(g_breakpts[i] == addr) {
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hit = i;
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break;
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}
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}
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if(hit < 0) {
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printf("Breakpoint not found!\n");
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} else {
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printf("Deleting brkpoint #0x%02x\n", hit);
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for(i = hit+1; i < count; i++) {
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g_breakpts[i-1] = g_breakpts[i];
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}
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g_num_breakpoints = count - 1;
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setup_pageinfo();
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}
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show_bp();
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}
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void
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do_blank()
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{
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int tmp, i;
|
|
|
|
switch(old_mode) {
|
|
case 's':
|
|
tmp = a2;
|
|
if(tmp == 0) tmp = 1;
|
|
enter_debug = 0;
|
|
for(i = 0; i < tmp; i++) {
|
|
g_stepping = 1;
|
|
do_step();
|
|
if(enter_debug || halt_sim != 0) {
|
|
if(halt_sim != HALT_EVENT) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
list_kpc = engine.kpc;
|
|
/* video_update_through_line(262); */
|
|
break;
|
|
case ':':
|
|
set_memory_c(((a3bank << 16) + a3), a2, 0);
|
|
a3++;
|
|
mode = old_mode;
|
|
break;
|
|
case '.':
|
|
case 0:
|
|
xam_mem(-1);
|
|
break;
|
|
case ',':
|
|
xam_mem(16);
|
|
break;
|
|
case '+':
|
|
printf("%x\n", a1 + a2);
|
|
break;
|
|
case '-':
|
|
printf("%x\n", a1 - a2);
|
|
break;
|
|
default:
|
|
printf("Unknown mode at space: %d\n", old_mode);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
do_go()
|
|
{
|
|
|
|
/* also called by do_step */
|
|
|
|
g_config_control_panel = 0;
|
|
clear_halt();
|
|
|
|
run_prog();
|
|
show_regs();
|
|
g_config_control_panel = 1;
|
|
}
|
|
|
|
void
|
|
do_step()
|
|
{
|
|
int size;
|
|
int size_mem_imm, size_x_imm;
|
|
|
|
do_go();
|
|
|
|
size_mem_imm = 2;
|
|
if(engine.psr & 0x20) {
|
|
size_mem_imm = 1;
|
|
}
|
|
size_x_imm = 2;
|
|
if(engine.psr & 0x10) {
|
|
size_x_imm = 1;
|
|
}
|
|
size = do_dis(stdout, engine.kpc, size_mem_imm, size_x_imm, 0, 0);
|
|
}
|
|
|
|
void
|
|
xam_mem(int count)
|
|
{
|
|
show_hex_mem(a1bank, a1, a2bank, a2, count);
|
|
a1 = a2 + 1;
|
|
}
|
|
|
|
void
|
|
show_hex_mem(int startbank, word32 start, int endbank, word32 end, int count)
|
|
{
|
|
char ascii[MAXNUM_HEX_PER_LINE];
|
|
word32 i;
|
|
int val, offset;
|
|
|
|
if(count < 0) {
|
|
count = 16 - (start & 0xf);
|
|
}
|
|
|
|
offset = 0;
|
|
ascii[0] = 0;
|
|
printf("Showing hex mem: bank: %x, start: %x, end: %x\n",
|
|
startbank, start, end);
|
|
for(i = start; i <= end; i++) {
|
|
if( (i==start) || (count == 16) ) {
|
|
printf("%04x:",i);
|
|
}
|
|
printf(" %02x", get_memory_c((startbank <<16) + i, 0));
|
|
val = get_memory_c((startbank << 16) + i, 0) & 0x7f;
|
|
if(val < 32 || val >= 0x7f) {
|
|
val = '.';
|
|
}
|
|
ascii[offset++] = val;
|
|
ascii[offset] = 0;
|
|
count--;
|
|
if(count <= 0) {
|
|
printf(" %s\n", ascii);
|
|
offset = 0;
|
|
ascii[0] = 0;
|
|
count = 16;
|
|
}
|
|
}
|
|
if(offset > 0) {
|
|
printf(" %s\n", ascii);
|
|
}
|
|
}
|
|
|
|
|
|
int
|
|
read_line(char *buf, int len)
|
|
{
|
|
int space_left;
|
|
int ret;
|
|
#ifndef _WIN32
|
|
int flags, flags_save;
|
|
|
|
/* Unix */
|
|
flags = fcntl(0, F_GETFL, 0);
|
|
flags_save = flags;
|
|
if(flags == -1) {
|
|
return 0;
|
|
}
|
|
ret = fcntl(0, F_SETFL, flags | O_NONBLOCK);
|
|
if(ret == -1) {
|
|
return 0;
|
|
}
|
|
#endif
|
|
space_left = len;
|
|
|
|
buf[0] = 0;
|
|
ret = 0;
|
|
while(space_left > 0) {
|
|
#ifdef _WIN32
|
|
ret = win_nonblock_read_stdin(0, buf, 1);
|
|
#else
|
|
/* Unix */
|
|
ret = read(0, buf, 1);
|
|
#endif
|
|
if(ret <= 0) {
|
|
micro_sleep(15.0/60.0);
|
|
if(errno == EAGAIN) {
|
|
/* it would block, so no chars--do update */
|
|
video_update();
|
|
ret = 0;
|
|
continue;
|
|
}
|
|
printf("read ret %d, errno: %d\n", ret, errno);
|
|
if(errno == EAGAIN || errno == EINTR) {
|
|
ret = 0;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
space_left -= ret;
|
|
if(buf[ret-1] == 0x0a) {
|
|
break;
|
|
}
|
|
buf = &buf[ret];
|
|
}
|
|
#ifndef _WIN32
|
|
(void)fcntl(0, F_SETFL, flags_save);
|
|
#endif
|
|
|
|
return (len-space_left);
|
|
}
|
|
|
|
void
|
|
do_debug_list()
|
|
{
|
|
int i;
|
|
int size;
|
|
int size_mem_imm, size_x_imm;
|
|
|
|
if(got_num) {
|
|
list_kpc = (a2bank << 16) + (a2 & 0xffff);
|
|
}
|
|
printf("%d=m %d=x %d=LCBANK\n", (engine.psr >> 5)&1,
|
|
(engine.psr >> 4) & 1, (g_c068_statereg & 0x4) >> 2);
|
|
|
|
size_mem_imm = 2;
|
|
if(engine.psr & 0x20) {
|
|
size_mem_imm = 1;
|
|
}
|
|
size_x_imm = 2;
|
|
if(engine.psr & 0x10) {
|
|
size_x_imm = 1;
|
|
}
|
|
for(i=0;i<20;i++) {
|
|
size = do_dis(stdout, list_kpc, size_mem_imm,
|
|
size_x_imm, 0, 0);
|
|
list_kpc += size;
|
|
}
|
|
}
|
|
|
|
void
|
|
dis_do_memmove()
|
|
{
|
|
word32 val;
|
|
|
|
printf("Memory move from %02x/%04x.%04x to %02x/%04x\n", a1bank, a1, a2, g_a4bank, g_a4);
|
|
while(a1 <= (a2 & 0xffff)) {
|
|
val = get_memory_c((a1bank << 16) + a1, 0);
|
|
set_memory_c((g_a4bank << 16) + g_a4, val, 0);
|
|
a1++;
|
|
g_a4++;
|
|
}
|
|
a1 = a1 & 0xffff;
|
|
g_a4 = g_a4 & 0xffff;
|
|
}
|
|
|
|
void
|
|
dis_do_pattern_search()
|
|
{
|
|
printf("Memory pattern search for %04x in %02x/%04x.%04x\n", g_a4, a1bank, a1, a2);
|
|
}
|
|
|
|
void
|
|
dis_do_compare()
|
|
{
|
|
word32 val1, val2;
|
|
|
|
printf("Memory Compare from %02x/%04x.%04x with %02x/%04x\n", a1bank, a1, a2, g_a4bank, g_a4);
|
|
while(a1 <= (a2 & 0xffff)) {
|
|
val1 = get_memory_c((a1bank << 16) + a1, 0);
|
|
val2 = get_memory_c((g_a4bank << 16) + g_a4, 0);
|
|
if(val1 != val2) {
|
|
printf("%02x/%04x: %02x vs %02x\n", a1bank, a1, val1, val2);
|
|
}
|
|
a1++;
|
|
g_a4++;
|
|
}
|
|
a1 = a1 & 0xffff;
|
|
g_a4 = g_a4 & 0xffff;
|
|
}
|
|
|
|
void
|
|
do_debug_unix()
|
|
{
|
|
char localbuf[LINE_SIZE];
|
|
word32 offset, len;
|
|
int fd, ret;
|
|
int load, save;
|
|
int i;
|
|
|
|
load = 0; save = 0;
|
|
switch(*line_ptr++) {
|
|
case 'l': case 'L':
|
|
printf("Loading..");
|
|
load = 1;
|
|
break;
|
|
case 's': case 'S':
|
|
printf("Saving...");
|
|
save = 1;
|
|
break;
|
|
default:
|
|
printf("Unknown unix command: %c\n", *(line_ptr-1));
|
|
*line_ptr = 0;
|
|
return;
|
|
}
|
|
while(*line_ptr == ' ' || *line_ptr == '\t') {
|
|
line_ptr++;
|
|
}
|
|
i = 0;
|
|
while(i < LINE_SIZE) {
|
|
localbuf[i++] = *line_ptr++;
|
|
if(*line_ptr==' ' || *line_ptr=='\t' || *line_ptr == '\n') {
|
|
break;
|
|
}
|
|
}
|
|
localbuf[i] = 0;
|
|
|
|
|
|
printf("About to open: %s,len: %d\n", localbuf, (int)strlen(localbuf));
|
|
if(load) {
|
|
fd = open(localbuf,O_RDONLY | O_BINARY);
|
|
} else {
|
|
fd = open(localbuf,O_WRONLY | O_CREAT | O_BINARY, 0x1b6);
|
|
}
|
|
if(fd < 0) {
|
|
printf("Open %s failed: %d\n", localbuf, fd);
|
|
printf("errno: %d\n", errno);
|
|
return;
|
|
}
|
|
if(load) {
|
|
offset = a1 & 0xffff;
|
|
len = 0x20000 - offset;
|
|
} else {
|
|
if(old_mode == '.') {
|
|
len = a2 - a1 + 1;
|
|
} else {
|
|
len = 0x100;
|
|
}
|
|
}
|
|
if(load) {
|
|
if(a1bank >= 0xe0 && a1bank < 0xe2) {
|
|
ret = read(fd,(char*)&g_slow_memory_ptr[((a1bank & 1)<<16)+a1],len);
|
|
} else {
|
|
ret = read(fd,(char*)&g_memory_ptr[(a1bank << 16) + a1],len);
|
|
}
|
|
} else {
|
|
if(a1bank >= 0xe0 && a1bank < 0xe2) {
|
|
ret = write(fd,(char*)&g_slow_memory_ptr[((a1bank & 1)<<16)+a1],len);
|
|
} else {
|
|
ret = write(fd,(char*)&g_memory_ptr[(a1bank << 16) + a1],len);
|
|
}
|
|
}
|
|
printf("Read/write: addr %06x for %04x bytes, ret: %x bytes\n",
|
|
(a1bank << 16) + a1, len, ret);
|
|
if(ret < 0) {
|
|
printf("errno: %d\n", errno);
|
|
}
|
|
a1 = a1 + ret;
|
|
}
|
|
|
|
void
|
|
do_debug_load()
|
|
{
|
|
printf("Sorry, can't load now\n");
|
|
}
|
|
|
|
|
|
int
|
|
do_dis(FILE *outfile, word32 kpc, int accsize, int xsize,
|
|
int op_provided, word32 instr)
|
|
{
|
|
char buffer[150];
|
|
const char *out;
|
|
int args, type;
|
|
int opcode;
|
|
word32 val;
|
|
word32 oldkpc;
|
|
word32 dtype;
|
|
int signed_val;
|
|
|
|
oldkpc = kpc;
|
|
if(op_provided) {
|
|
opcode = (instr >> 24) & 0xff;
|
|
} else {
|
|
opcode = (int)get_memory_c(kpc, 0) & 0xff;
|
|
}
|
|
|
|
kpc++;
|
|
|
|
dtype = disas_types[opcode];
|
|
out = disas_opcodes[opcode];
|
|
type = dtype & 0xff;
|
|
args = dtype >> 8;
|
|
|
|
if(args > 3) {
|
|
if(args == 4) {
|
|
args = accsize;
|
|
} else if(args == 5) {
|
|
args = xsize;
|
|
}
|
|
}
|
|
|
|
val = -1;
|
|
switch(args) {
|
|
case 0:
|
|
val = 0;
|
|
break;
|
|
case 1:
|
|
if(op_provided) {
|
|
val = instr & 0xff;
|
|
} else {
|
|
val = get_memory_c(kpc, 0);
|
|
}
|
|
break;
|
|
case 2:
|
|
if(op_provided) {
|
|
val = instr & 0xffff;
|
|
} else {
|
|
val = get_memory16_c(kpc, 0);
|
|
}
|
|
break;
|
|
case 3:
|
|
if(op_provided) {
|
|
val = instr & 0xffffff;
|
|
} else {
|
|
val = get_memory24_c(kpc, 0);
|
|
}
|
|
break;
|
|
default:
|
|
fprintf(stderr, "args out of rang: %d, opcode: %08x\n",
|
|
args, opcode);
|
|
break;
|
|
}
|
|
kpc += args;
|
|
|
|
if(!op_provided) {
|
|
instr = (opcode << 24) | (val & 0xffffff);
|
|
}
|
|
|
|
switch(type) {
|
|
case ABS:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%04x",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case ABSX:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%04x,X",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case ABSY:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%04x,Y",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case ABSLONG:
|
|
if(args != 3) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%06x",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case ABSIND:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t($%04x)",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case ABSXIND:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t($%04x,X)",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case IMPLY:
|
|
if(args != 0) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s",out);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case ACCUM:
|
|
if(args != 0) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s",out);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case IMMED:
|
|
if(args == 1) {
|
|
sprintf(buffer,"%s\t#$%02x",out,val);
|
|
} else if(args == 2) {
|
|
sprintf(buffer,"%s\t#$%04x",out,val);
|
|
} else {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case JUST8:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%02x",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOC:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%02x",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCX:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%02x,X",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCY:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%02x,Y",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case LONG:
|
|
if(args != 3) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%06x",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case LONGX:
|
|
if(args != 3) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%06x,X",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCIND:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t($%02x)",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCINDY:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t($%02x),Y",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCXIND:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t($%02x,X)",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCBRAK:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t[$%02x]",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DLOCBRAKY:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t[$%02x],y",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DISP8:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
signed_val = (signed char)val;
|
|
sprintf(buffer,"%s\t$%04x",out,
|
|
(word32)(kpc+(signed_val)) & 0xffff);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DISP8S:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%02x,S",out,(word32)(byte)(val));
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DISP8SINDY:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t($%02x,S),Y",out,(word32)(byte)(val));
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case DISP16:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%04x", out,
|
|
(word32)(kpc+(signed)(word16)(val)) & 0xffff);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case MVPMVN:
|
|
if(args != 2) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t$%02x,$%02x",out,val&0xff,val>>8);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
case SEPVAL:
|
|
case REPVAL:
|
|
if(args != 1) {
|
|
printf("arg # mismatch for opcode %x\n", opcode);
|
|
}
|
|
sprintf(buffer,"%s\t#$%02x",out,val);
|
|
show_line(outfile, oldkpc,instr,args+1,buffer);
|
|
break;
|
|
default:
|
|
printf("argument type: %d unexpected\n", type);
|
|
break;
|
|
}
|
|
|
|
return(args+1);
|
|
}
|
|
|
|
void
|
|
show_line(FILE *outfile, word32 kaddr, word32 operand, int size,
|
|
char *string)
|
|
{
|
|
int i;
|
|
int opcode;
|
|
|
|
fprintf(outfile, "%02x/%04x: ", kaddr >> 16, kaddr & 0xffff);
|
|
opcode = (operand >> 24) & 0xff;
|
|
fprintf(outfile,"%02x ", opcode);
|
|
|
|
for(i=1;i<size;i++) {
|
|
fprintf(outfile, "%02x ", operand & 0xff);
|
|
operand = operand >> 8;
|
|
}
|
|
for(;i<5;i++) {
|
|
fprintf(outfile, " ");
|
|
}
|
|
fprintf(outfile,"%s\n", string);
|
|
}
|
|
|
|
void
|
|
halt_printf(const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
vprintf(fmt, args);
|
|
va_end(args);
|
|
|
|
set_halt(1);
|
|
}
|
|
|
|
void
|
|
halt2_printf(const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
vprintf(fmt, args);
|
|
va_end(args);
|
|
|
|
set_halt(2);
|
|
}
|
|
|