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annotate ztestrun.c @ 505:b7b7a1cab44a

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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
author Michael Pavone <pavone@retrodev.com>
date Mon, 06 Jan 2014 22:54:05 -0800
parents 140af5509ce7
children 5ef3fe516da9
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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 "z80inst.h"
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7 #include "z80_to_x86.h"
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8 #include "mem.h"
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9 #include "vdp.h"
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12
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13 uint8_t z80_ram[0x2000];
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14 uint16_t cart[0x200000];
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15
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16 #define MCLKS_PER_Z80 15
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17 //TODO: Figure out the exact value for this
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18 #define MCLKS_PER_FRAME (MCLKS_LINE*262)
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19 #define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80)
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20 #define CYCLE_NEVER 0xFFFFFFFF
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21
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22 uint8_t z80_read_ym(uint16_t location, z80_context * context)
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23 {
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24 return 0xFF;
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25 }
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26
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27 z80_context * z80_write_ym(uint16_t location, z80_context * context, uint8_t value)
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28 {
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29 return context;
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30 }
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31
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32 z80_context * z80_vdp_port_write(uint16_t location, z80_context * context, uint8_t value)
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33 {
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34 return context;
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35 }
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36
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37 int main(int argc, char ** argv)
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38 {
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39 long filesize;
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40 uint8_t *filebuf;
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41 x86_z80_options opts;
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42 z80_context context;
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43 if (argc < 2) {
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44 fputs("usage: transz80 zrom [cartrom]\n", stderr);
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45 exit(1);
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46 }
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47 FILE * f = fopen(argv[1], "rb");
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48 if (!f) {
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49 fprintf(stderr, "unable to open file %s\n", argv[2]);
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50 exit(1);
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51 }
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52 fseek(f, 0, SEEK_END);
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53 filesize = ftell(f);
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54 fseek(f, 0, SEEK_SET);
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55 fread(z80_ram, 1, filesize < sizeof(z80_ram) ? filesize : sizeof(z80_ram), f);
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56 fclose(f);
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57 if (argc > 2) {
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58 f = fopen(argv[2], "rb");
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59 if (!f) {
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60 fprintf(stderr, "unable to open file %s\n", argv[2]);
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61 exit(1);
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62 }
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63 fseek(f, 0, SEEK_END);
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64 filesize = ftell(f);
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65 fseek(f, 0, SEEK_SET);
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66 fread(cart, 1, filesize < sizeof(cart) ? filesize : sizeof(cart), f);
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67 fclose(f);
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68 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur)
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69 {
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70 *cur = (*cur >> 8) | (*cur << 8);
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71 }
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72 }
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73 init_x86_z80_opts(&opts);
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74 init_z80_context(&context, &opts);
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75 //Z80 RAM
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76 context.mem_pointers[0] = z80_ram;
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77 context.sync_cycle = context.target_cycle = 1000;
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78 context.int_cycle = CYCLE_NEVER;
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79 //cartridge/bank
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80 context.mem_pointers[1] = context.mem_pointers[2] = (uint8_t *)cart;
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81 z80_reset(&context);
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82 while (context.current_cycle < 1000) {
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83 z80_run(&context);
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84 }
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85 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\nIX: %X\nIY: %X\nSP: %X\n\nIM: %d, IFF1: %d, IFF2: %d\n",
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86 context.regs[Z80_A], context.regs[Z80_B], context.regs[Z80_C],
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87 context.regs[Z80_D], context.regs[Z80_E],
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88 (context.regs[Z80_H] << 8) | context.regs[Z80_L],
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89 (context.regs[Z80_IXH] << 8) | context.regs[Z80_IXL],
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90 (context.regs[Z80_IYH] << 8) | context.regs[Z80_IYL],
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91 context.sp, context.im, context.iff1, context.iff2);
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92 printf("Flags: SZVNC\n"
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93 " %d%d%d%d%d\n", context.flags[ZF_S], context.flags[ZF_Z], context.flags[ZF_PV], context.flags[ZF_N], context.flags[ZF_C]);
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94 puts("--Alternate Regs--");
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95 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\n",
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96 context.alt_regs[Z80_A], context.alt_regs[Z80_B], context.alt_regs[Z80_C],
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97 context.alt_regs[Z80_D], context.alt_regs[Z80_E],
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98 (context.alt_regs[Z80_H] << 8) | context.alt_regs[Z80_L]);
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99 return 0;
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100 }