view trans.c @ 555:5af986d2b9da

Start work on refactoring some of the backend code to allow more sharing between M68K and Z80 cores and possibly also between x86 and the ARM backend when it exists
author Michael Pavone <pavone@retrodev.com>
date Mon, 24 Feb 2014 00:39:02 -0800
parents 140af5509ce7
children 8e395210f50f
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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 "68kinst.h"
#include "m68k_to_x86.h"
#include "mem.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

m68k_context * sync_components(m68k_context * context, uint32_t address)
{
	if (context->current_cycle > 0x80000000) {
		context->current_cycle -= 0x80000000;
	}
	return context;
}

int main(int argc, char ** argv)
{
	long filesize;
	unsigned short *filebuf;
	char disbuf[1024];
	unsigned short * cur;
	x86_68k_options opts;
	m68k_context context;
	FILE * f = fopen(argv[1], "rb");
	fseek(f, 0, SEEK_END);
	filesize = ftell(f);
	fseek(f, 0, SEEK_SET);
	filebuf = malloc(filesize > 0x400000 ? filesize : 0x400000);
	fread(filebuf, 2, filesize/2, f);
	fclose(f);
	for(cur = filebuf; cur - filebuf < (filesize/2); ++cur)
	{
		*cur = (*cur >> 8) | (*cur << 8);
	}
	memmap_chunk memmap[2];
	memset(memmap, 0, sizeof(memmap_chunk)*2);
	memmap[0].end = 0x400000;
	memmap[0].mask = 0xFFFFFF;
	memmap[0].flags = MMAP_READ;
	memmap[0].buffer = filebuf;
	
	memmap[1].start = 0xE00000;
	memmap[1].end = 0x1000000;
	memmap[1].mask = 0xFFFF;
	memmap[1].flags = MMAP_READ | MMAP_WRITE | MMAP_CODE;
	memmap[1].buffer = malloc(64 * 1024);
	init_x86_68k_opts(&opts, memmap, 2);
	init_68k_context(&context, opts.native_code_map, &opts);
	context.mem_pointers[0] = memmap[0].buffer;
	context.mem_pointers[1] = memmap[1].buffer;
	context.target_cycle = context.sync_cycle = 0x80000000;
	uint32_t address;
	address = filebuf[2] << 16 | filebuf[3];
	translate_m68k_stream(address, &context);
	m68k_reset(&context);
	return 0;
}