Mercurial > repos > blastem
annotate trans.c @ 345:29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
author | Mike Pavone <pavone@retrodev.com> |
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date | Sun, 19 May 2013 13:47:47 -0700 |
parents | e657a99b5abf |
children | 306986209cba |
rev | line source |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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1 #include "68kinst.h" |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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2 #include "m68k_to_x86.h" |
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3 #include "mem.h" |
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4 #include <stdio.h> |
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5 #include <stdlib.h> |
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6 |
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7 int main(int argc, char ** argv) |
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8 { |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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9 long filesize; |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
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10 unsigned short *filebuf; |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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11 char disbuf[1024]; |
3e7bfde7606e
M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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12 unsigned short * cur; |
3e7bfde7606e
M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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13 x86_68k_options opts; |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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14 m68k_context context; |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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15 FILE * f = fopen(argv[1], "rb"); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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16 fseek(f, 0, SEEK_END); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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17 filesize = ftell(f); |
3e7bfde7606e
M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
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18 fseek(f, 0, SEEK_SET); |
3e7bfde7606e
M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
diff
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19 filebuf = malloc(filesize); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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20 fread(filebuf, 2, filesize/2, f); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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parents:
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21 fclose(f); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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parents:
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22 for(cur = filebuf; cur - filebuf < (filesize/2); ++cur) |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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23 { |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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24 *cur = (*cur >> 8) | (*cur << 8); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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25 } |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
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26 init_x86_68k_opts(&opts); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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parents:
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27 init_68k_context(&context, opts.native_code_map, &opts); |
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28 //cartridge ROM |
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29 context.mem_pointers[0] = filebuf; |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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30 context.target_cycle = 0x7FFFFFFF; |
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31 //work RAM |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
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parents:
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32 context.mem_pointers[1] = malloc(64 * 1024); |
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e657a99b5abf
Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
Mike Pavone <pavone@retrodev.com>
parents:
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33 uint32_t address; |
e657a99b5abf
Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
Mike Pavone <pavone@retrodev.com>
parents:
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34 address = filebuf[2] << 16 | filebuf[3]; |
e657a99b5abf
Fixed up trans for changes to translate_m68k_stream, but still need to deal with missing callbacks.
Mike Pavone <pavone@retrodev.com>
parents:
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35 translate_m68k_stream(address, &context); |
19
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Initial support for M68k reset vector, rather than starting at an arbitrary address
Mike Pavone <pavone@retrodev.com>
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36 m68k_reset(&context); |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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37 return 0; |
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M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
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38 } |