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/*
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 "z80inst.h"
#include "z80_to_x86.h"
#include "mem.h"
#include "vdp.h"
#include <stdio.h>
#include <stdlib.h>
uint8_t z80_ram[0x2000];
#define MCLKS_PER_Z80 15
//TODO: Figure out the exact value for this
#define MCLKS_PER_FRAME (MCLKS_LINE*262)
#define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80)
#define CYCLE_NEVER 0xFFFFFFFF
uint8_t z80_unmapped_read(uint32_t location, void * context)
{
return 0xFF;
}
void * z80_unmapped_write(uint32_t location, void * context, uint8_t value)
{
return context;
}
const memmap_chunk z80_map[] = {
{ 0x0000, 0x4000, 0x1FFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL },
{ 0x4000, 0x10000, 0xFFFF, 0, 0, NULL, NULL, NULL, z80_unmapped_read, z80_unmapped_write}
};
int main(int argc, char ** argv)
{
long filesize;
uint8_t *filebuf;
z80_options opts;
z80_context context;
if (argc < 2) {
fputs("usage: transz80 zrom [cartrom]\n", stderr);
exit(1);
}
FILE * f = fopen(argv[1], "rb");
if (!f) {
fprintf(stderr, "unable to open file %s\n", argv[2]);
exit(1);
}
fseek(f, 0, SEEK_END);
filesize = ftell(f);
fseek(f, 0, SEEK_SET);
fread(z80_ram, 1, filesize < sizeof(z80_ram) ? filesize : sizeof(z80_ram), f);
fclose(f);
init_x86_z80_opts(&opts, z80_map, 2);
init_z80_context(&context, &opts);
//Z80 RAM
context.mem_pointers[0] = z80_ram;
context.sync_cycle = context.target_cycle = 1000;
context.int_cycle = CYCLE_NEVER;
z80_reset(&context);
while (context.current_cycle < 1000) {
context.run(&context);
}
printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\nIX: %X\nIY: %X\nSP: %X\n\nIM: %d, IFF1: %d, IFF2: %d\n",
context.regs[Z80_A], context.regs[Z80_B], context.regs[Z80_C],
context.regs[Z80_D], context.regs[Z80_E],
(context.regs[Z80_H] << 8) | context.regs[Z80_L],
(context.regs[Z80_IXH] << 8) | context.regs[Z80_IXL],
(context.regs[Z80_IYH] << 8) | context.regs[Z80_IYL],
context.sp, context.im, context.iff1, context.iff2);
printf("Flags: SZVNC\n"
" %d%d%d%d%d\n", context.flags[ZF_S], context.flags[ZF_Z], context.flags[ZF_PV], context.flags[ZF_N], context.flags[ZF_C]);
puts("--Alternate Regs--");
printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\n",
context.alt_regs[Z80_A], context.alt_regs[Z80_B], context.alt_regs[Z80_C],
context.alt_regs[Z80_D], context.alt_regs[Z80_E],
(context.alt_regs[Z80_H] << 8) | context.alt_regs[Z80_L]);
return 0;
}
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