z280dbg.h

/*
 * z280dbg.h - simple Z280 tracer
 *
 * Copyright (c) Michal Tomek 2018-2021 <mtdev79b@gmail.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 *  02111-1307  USA.
 *
 */

unsigned int volatile g_quit = 0;
unsigned long long instrcnt = 0;
unsigned long long starttrace = -1LL;

void do_timers();

UINT8 debugger_getmem(device_t *device, offs_t addr) {
	UINT8 *mem = RAMARRAY;
	return mem[addr];
}

void debugger_instruction_hook(device_t *device, offs_t curpc) {
	//printf(".");
	char ibuf[20];
	offs_t dres,i;
	char fbuf[10];
	UINT8 *mem = NULL;
	offs_t transpc, transea;
	enum address_spacenum eseg;
	int ilen;

	instrcnt++;
	do_timers();

	if(VERBOSE) {
		cpu_string_export_z280(device,STATE_GENFLAGS,fbuf);
		printf("%s AF=%04X BC=%04X DE=%04X HL=%04X IX=%04X IY=%04X SSP=%04X USP=%04X MSR=%04X\n",fbuf,
		    cpu_get_state_z280(device,Z280_AF),
			cpu_get_state_z280(device,Z280_BC),
			cpu_get_state_z280(device,Z280_DE),
			cpu_get_state_z280(device,Z280_HL),
			cpu_get_state_z280(device,Z280_IX),
			cpu_get_state_z280(device,Z280_IY),
			cpu_get_state_z280(device,Z280_SSP),
			cpu_get_state_z280(device,Z280_USP),
			cpu_get_state_z280(device,Z280_CR_MSR));
		transpc = curpc;
		cpu_translate_z280(device,AS_PROGRAM,0,&transpc);
		mem = RAMARRAY;
		dres = cpu_disassemble_z280(device,ibuf,curpc,&mem[transpc],0);
		printf("%04X=%06X: ",curpc,transpc);
		ilen = dres &DASMFLAG_LENGTHMASK;
		for (i=0;i<ilen;i++) printf("%02X",mem[transpc+i]);
		for ( ;i<7;i++) {putchar(' ');putchar(' ');}
		int nn=printf(" %s",ibuf);
		if(strchr(ibuf,'(')) {
			eseg=-1;
			if (ibuf[0]!='j'&&ibuf[0]!='c'&&!(ibuf[0]=='l'&&ibuf[2]=='a')) {// jp, jr, call, lda
				if (strstr(ibuf,"(hl)")) {
					transea = cpu_get_state_z280(device,Z280_HL);
					eseg=AS_DATA;
				} else if (strstr(ibuf,"(de)")) {
					transea = cpu_get_state_z280(device,Z280_DE);
					eseg=AS_DATA;
				} else if (strstr(ibuf,"(bc)")) {
					transea = cpu_get_state_z280(device,Z280_BC);
					eseg=AS_DATA;
				} else if (strstr(ibuf,"(ix")) {
					transea = cpu_get_state_z280(device,Z280_IX)+(int8_t)mem[transpc+2];
					eseg=AS_DATA;
				} else if (strstr(ibuf,"(iy")) {
					transea = cpu_get_state_z280(device,Z280_IY)+(int8_t)mem[transpc+2];
					eseg=AS_DATA;
				} else if (strstr(ibuf,"(sp)")) {	  // ex (sp),...
					transea = cpu_get_state_z280(device,Z280_SP);
					eseg=AS_DATA;
				} else if (strstr(ibuf,"(sp")) {
					transea = cpu_get_state_z280(device,Z280_SP)+(int16_t)mem[transpc+2];
					eseg=AS_DATA;
				} else if (ibuf[0]!='o'&&ibuf[0]!='i'&&strstr(ibuf,"($")) {	// abs indirect
					transea = (int16_t)mem[transpc+ilen-2];
					eseg=AS_DATA;
				}
			}
			if (eseg!=-1) {
				for (i=nn;i<28;i++) {putchar(' ');}
				cpu_translate_z280(device,eseg,0,&transea);
				printf("ea=%06X\n",transea);
			} else
				putchar('\n');
		} else if (ibuf[0]=='l'&&ibuf[1]=='d'&&(ibuf[2]=='i'||ibuf[2]=='d')) {
			for (i=nn;i<28;i++) {putchar(' ');}
			transea = cpu_get_state_z280(device,Z280_DE);
			cpu_translate_z280(device,AS_DATA,0,&transea);
			printf("eade=%06X ",transea);
			transea = cpu_get_state_z280(device,Z280_HL);
			cpu_translate_z280(device,AS_DATA,0,&transea);
			printf("eahl=%06X\n",transea);
		} else
			putchar('\n');
		fflush(stdout);
	}
}