view testgst.c @ 980:928442068afe

Implemented VDP read prefetch and made DMA copy not use the FIFO any more. Now up to 114 out of 122 passing on VDP FIFO Test ROM
author Michael Pavone <pavone@retrodev.com>
date Sun, 24 Apr 2016 01:24:38 -0700
parents 140af5509ce7
children e9369d6f0101
line wrap: on
line source

/*
 Copyright 2013 Michael Pavone
 This file is part of BlastEm. 
 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
*/
#include "gst.h"
#include <string.h>
#include <stdlib.h>

uint8_t busreq;
uint8_t reset;

int32_t color_map[1 << 12];

void latch_mode(vdp_context * context)
{
}
void ym_data_write(ym2612_context * context, uint8_t value)
{
	if (context->selected_reg >= YM_REG_END) {
		return;
	}
	if (context->selected_part) {
		if (context->selected_reg < YM_PART2_START) {
			return;
		}
		context->part2_regs[context->selected_reg - YM_PART2_START] = value;
	} else {
		if (context->selected_reg < YM_PART1_START) {
			return;
		}
		context->part1_regs[context->selected_reg - YM_PART1_START] = value;
	}
}

void ym_address_write_part1(ym2612_context * context, uint8_t address)
{
	//printf("address_write_part1: %X\n", address);
	context->selected_reg = address;
	context->selected_part = 0;
}

void ym_address_write_part2(ym2612_context * context, uint8_t address)
{
	//printf("address_write_part2: %X\n", address);
	context->selected_reg = address;
	context->selected_part = 1;
}

uint16_t ram[64*1024];
uint8_t zram[8*1024];


int main(int argc, char ** argv)
{
	vdp_context vdp;
	ym2612_context ym;
	psg_context psg;
	m68k_context m68k;
	z80_context z80;
	genesis_context gen;
	if (argc < 3) {
		fputs("Usage: testgst infile outfile\n", stderr);
		return 1;
	}
	memset(&gen, 0, sizeof(gen));
	memset(&m68k, 0, sizeof(m68k));
	memset(&z80, 0, sizeof(z80));
	memset(&ym, 0, sizeof(ym));
	memset(&vdp, 0, sizeof(vdp));
	memset(&psg, 0, sizeof(psg));
	m68k.mem_pointers[1] = ram;
	z80.mem_pointers[0] = zram;
	vdp.vdpmem = malloc(VRAM_SIZE);
	gen.vdp = &vdp;
	gen.ym = &ym;
	gen.psg = &psg;
	gen.m68k = &m68k;
	gen.z80 = &z80;
	uint32_t pc = load_gst(&gen, argv[1]);
	save_gst(&gen, argv[2], pc);
	return 0;
}