view trans.c @ 541:a59ac6b4b5b5

Get rid of the native stack option the 68K core. Trying to make it work with code that messes with the stack is not worth the trouble.
author Michael Pavone <pavone@retrodev.com>
date Sat, 15 Feb 2014 22:35:18 -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;
}