Mercurial > repos > blastem
annotate trans.c @ 577:0f367276a80c
Refactor a bunch of the arithmetic instructions in the 68K core to reduce duplicate code
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 04 Mar 2014 22:12:43 -0800 |
parents | 0f32f52fc98e |
children | 3f065c20423c |
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467
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Added copyright notice to source files and added GPL license text in COPYING
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1 /* |
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2 Copyright 2013 Michael Pavone |
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Refactor gen_x86 to use an interface more like gen_arm and to remove the need for the caller to decide whether an 8-bit or 32-bit displacement is needed in the rdisp functions. Update m68k_to_x86 to use the new version of the gen_x86 functions and do some minor refactoring there in the process
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3 This file is part of BlastEm. |
467
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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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Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively
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7 #include "m68k_core.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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Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively
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27 m68k_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); |
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0f32f52fc98e
Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
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33 filebuf = malloc(0x400000); |
0f32f52fc98e
Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
Michael Pavone <pavone@retrodev.com>
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570
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34 memset(filebuf, 0, 0x400000); |
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Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
Michael Pavone <pavone@retrodev.com>
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570
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35 fread(filebuf, 2, filesize/2 > 0x200000 ? 0x200000 : filesize/2, f); |
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36 fclose(f); |
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37 for(cur = filebuf; cur - filebuf < (filesize/2); ++cur) |
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38 { |
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39 *cur = (*cur >> 8) | (*cur << 8); |
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40 } |
440 | 41 memmap_chunk memmap[2]; |
42 memset(memmap, 0, sizeof(memmap_chunk)*2); | |
43 memmap[0].end = 0x400000; | |
44 memmap[0].mask = 0xFFFFFF; | |
45 memmap[0].flags = MMAP_READ; | |
46 memmap[0].buffer = filebuf; | |
567
8e395210f50f
Refactor gen_x86 to use an interface more like gen_arm and to remove the need for the caller to decide whether an 8-bit or 32-bit displacement is needed in the rdisp functions. Update m68k_to_x86 to use the new version of the gen_x86 functions and do some minor refactoring there in the process
Michael Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
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47 |
440 | 48 memmap[1].start = 0xE00000; |
49 memmap[1].end = 0x1000000; | |
50 memmap[1].mask = 0xFFFF; | |
51 memmap[1].flags = MMAP_READ | MMAP_WRITE | MMAP_CODE; | |
52 memmap[1].buffer = malloc(64 * 1024); | |
572
0f32f52fc98e
Make some small changes in trans so that it is more likely to produce the same output as mustrans when given misbehaving programs. Add lea to testcases.txt. Improve the output of comparetest.py so that known issues can easily be separated from new ones.
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
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53 memset(memmap[1].buffer, 0, 64 * 1024); |
570
76bba9ffe351
Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
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54 init_m68k_opts(&opts, memmap, 2); |
567
8e395210f50f
Refactor gen_x86 to use an interface more like gen_arm and to remove the need for the caller to decide whether an 8-bit or 32-bit displacement is needed in the rdisp functions. Update m68k_to_x86 to use the new version of the gen_x86 functions and do some minor refactoring there in the process
Michael Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
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55 init_68k_context(&context, opts.gen.native_code_map, &opts); |
440 | 56 context.mem_pointers[0] = memmap[0].buffer; |
57 context.mem_pointers[1] = memmap[1].buffer; | |
58 context.target_cycle = context.sync_cycle = 0x80000000; | |
212
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Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
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59 uint32_t address; |
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Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
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60 address = filebuf[2] << 16 | filebuf[3]; |
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61 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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62 m68k_reset(&context); |
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63 return 0; |
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64 } |
440 | 65 |