Mercurial > repos > blastem
annotate dis.c @ 14:2bdad0f52f42
x86 code gen, initial work on translator
author | Mike Pavone <pavone@retrodev.com> |
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date | Tue, 27 Nov 2012 09:28:13 -0800 |
parents | 168b1a873895 |
children | 3e7bfde7606e |
rev | line source |
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2
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
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1 #include "68kinst.h" |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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2 #include <stdio.h> |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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3 #include <stdlib.h> |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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4 |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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5 int main(int argc, char ** argv) |
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Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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6 { |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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7 long filesize; |
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Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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8 unsigned short *filebuf; |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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9 char disbuf[1024]; |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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10 m68kinst instbuf; |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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11 unsigned short * cur; |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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12 FILE * f = fopen(argv[1], "rb"); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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13 fseek(f, 0, SEEK_END); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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14 filesize = ftell(f); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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15 fseek(f, 0, SEEK_SET); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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16 filebuf = malloc(filesize); |
5df303bf72e6
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17 fread(filebuf, 2, filesize/2, f); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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18 fclose(f); |
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Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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19 for(cur = filebuf; cur - filebuf < (filesize/2); ++cur) |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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20 { |
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Mike Pavone <pavone@retrodev.com>
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21 *cur = (*cur >> 8) | (*cur << 8); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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22 } |
8
23b83d94c633
Finish bit/movep/immediate group except for 68020 instructions
Mike Pavone <pavone@retrodev.com>
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23 for(cur = filebuf; (cur - filebuf) < (filesize/2); ) |
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5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
diff
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24 { |
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23b83d94c633
Finish bit/movep/immediate group except for 68020 instructions
Mike Pavone <pavone@retrodev.com>
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25 //printf("cur: %p: %x\n", cur, *cur); |
13
168b1a873895
Improve disassembly. FIx some decoding bugs.
Mike Pavone <pavone@retrodev.com>
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26 unsigned short * start = cur; |
2
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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27 cur = m68K_decode(cur, &instbuf); |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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28 m68k_disasm(&instbuf, disbuf); |
13
168b1a873895
Improve disassembly. FIx some decoding bugs.
Mike Pavone <pavone@retrodev.com>
parents:
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29 printf("%lX: %s\n", (start - filebuf)*2, disbuf); |
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5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
parents:
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30 } |
5df303bf72e6
Improve 68K instruction decoding. Add simple disassembler.
Mike Pavone <pavone@retrodev.com>
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31 return 0; |
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Improve 68K instruction decoding. Add simple disassembler.
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32 } |