Mercurial > repos > blastem
annotate 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> |
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date | Mon, 24 Feb 2014 00:39:02 -0800 |
parents | 140af5509ce7 |
children | 8e395210f50f |
rev | line source |
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1 /* |
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2 Copyright 2013 Michael Pavone |
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3 This file is part of BlastEm. |
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
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5 */ |
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6 #include "68kinst.h" |
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7 #include "m68k_to_x86.h" |
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8 #include "mem.h" |
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9 #include <stdio.h> |
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10 #include <stdlib.h> |
440 | 11 #include <string.h> |
12 | |
13 m68k_context * sync_components(m68k_context * context, uint32_t address) | |
14 { | |
15 if (context->current_cycle > 0x80000000) { | |
16 context->current_cycle -= 0x80000000; | |
17 } | |
18 return context; | |
19 } | |
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20 |
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21 int main(int argc, char ** argv) |
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22 { |
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23 long filesize; |
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24 unsigned short *filebuf; |
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25 char disbuf[1024]; |
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26 unsigned short * cur; |
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27 x86_68k_options opts; |
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28 m68k_context context; |
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29 FILE * f = fopen(argv[1], "rb"); |
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30 fseek(f, 0, SEEK_END); |
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31 filesize = ftell(f); |
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32 fseek(f, 0, SEEK_SET); |
440 | 33 filebuf = malloc(filesize > 0x400000 ? filesize : 0x400000); |
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34 fread(filebuf, 2, filesize/2, f); |
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35 fclose(f); |
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36 for(cur = filebuf; cur - filebuf < (filesize/2); ++cur) |
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37 { |
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38 *cur = (*cur >> 8) | (*cur << 8); |
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39 } |
440 | 40 memmap_chunk memmap[2]; |
41 memset(memmap, 0, sizeof(memmap_chunk)*2); | |
42 memmap[0].end = 0x400000; | |
43 memmap[0].mask = 0xFFFFFF; | |
44 memmap[0].flags = MMAP_READ; | |
45 memmap[0].buffer = filebuf; | |
46 | |
47 memmap[1].start = 0xE00000; | |
48 memmap[1].end = 0x1000000; | |
49 memmap[1].mask = 0xFFFF; | |
50 memmap[1].flags = MMAP_READ | MMAP_WRITE | MMAP_CODE; | |
51 memmap[1].buffer = malloc(64 * 1024); | |
52 init_x86_68k_opts(&opts, memmap, 2); | |
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53 init_68k_context(&context, opts.native_code_map, &opts); |
440 | 54 context.mem_pointers[0] = memmap[0].buffer; |
55 context.mem_pointers[1] = memmap[1].buffer; | |
56 context.target_cycle = context.sync_cycle = 0x80000000; | |
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57 uint32_t address; |
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58 address = filebuf[2] << 16 | filebuf[3]; |
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59 translate_m68k_stream(address, &context); |
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Initial support for M68k reset vector, rather than starting at an arbitrary address
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60 m68k_reset(&context); |
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61 return 0; |
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62 } |
440 | 63 |