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annotate transz80.c @ 245:ea3899e3e7ec

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Implement cartridge rom loading in transz80
author Mike Pavone <pavone@retrodev.com>
date Sun, 28 Apr 2013 21:00:16 -0700
parents df8a36bf5e1d
children 5f1b68cecfc7
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d9bf8e61c33c Get Z80 core working for simple programs
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1 #include "z80inst.h"
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2 #include "z80_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 uint8_t z80_ram[0x2000];
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8 uint16_t cart[0x200000];
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9
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10 int main(int argc, char ** argv)
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11 {
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12 long filesize;
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13 uint8_t *filebuf;
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14 x86_z80_options opts;
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15 z80_context context;
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16 if (argc < 2) {
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17 fputs("usage: transz80 zrom [cartrom]\n", stderr);
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18 exit(1);
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19 }
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20 FILE * f = fopen(argv[1], "rb");
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21 if (!f) {
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22 fprintf(stderr, "unable to open file %s\n", argv[2]);
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23 exit(1);
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24 }
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25 fseek(f, 0, SEEK_END);
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26 filesize = ftell(f);
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27 fseek(f, 0, SEEK_SET);
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28 fread(z80_ram, 1, filesize < sizeof(z80_ram) ? filesize : sizeof(z80_ram), f);
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29 fclose(f);
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30 if (argc > 2) {
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31 f = fopen(argv[2], "rb");
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32 if (!f) {
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33 fprintf(stderr, "unable to open file %s\n", argv[2]);
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34 exit(1);
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35 }
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36 fseek(f, 0, SEEK_END);
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37 filesize = ftell(f);
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38 fseek(f, 0, SEEK_SET);
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39 fread(cart, 1, filesize < sizeof(cart) ? filesize : sizeof(cart), f);
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40 fclose(f);
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41 }
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42 init_x86_z80_opts(&opts);
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43 init_z80_context(&context, &opts);
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44 //Z80 RAM
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45 context.mem_pointers[0] = z80_ram;
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46 context.sync_cycle = context.target_cycle = 0x7FFFFFFF;
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47 //cartridge/bank
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48 context.mem_pointers[1] = context.mem_pointers[2] = cart;
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49 z80_reset(&context);
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50 for(;;)
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51 {
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52 z80_run(&context);
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53 }
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54 return 0;
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55 }