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annotate ztestrun.c @ 724:2174f92c5f9b

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Fix bug in vdp_next_hint that was causing HINTs to fire repeatedly when they should not have fired at all based on an HINT interval that was larger than the number of active lines in the display
author Michael Pavone <pavone@retrodev.com>
date Fri, 22 May 2015 18:38:44 -0700
parents 5bf4e77b1a43
children ab017fb09e77
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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 #include <stddef.h>
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13
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14 uint8_t z80_ram[0x2000];
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15
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16 uint8_t z80_unmapped_read(uint32_t location, void * context)
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17 {
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18 return 0xFF;
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19 }
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20
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21 void * z80_unmapped_write(uint32_t location, void * context, uint8_t value)
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22 {
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23 return context;
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24 }
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25
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26 const memmap_chunk z80_map[] = {
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27 { 0x0000, 0x4000, 0x1FFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL },
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28 { 0x4000, 0x10000, 0xFFFF, 0, 0, NULL, NULL, NULL, z80_unmapped_read, z80_unmapped_write}
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29 };
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30
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31 void z80_next_int_pulse(z80_context * context)
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32 {
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33 context->int_pulse_start = context->int_pulse_end = CYCLE_NEVER;
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34 }
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35
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36 int main(int argc, char ** argv)
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37 {
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38 long filesize;
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39 uint8_t *filebuf;
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40 z80_options opts;
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41 z80_context context;
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42 char *fname = NULL;
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43 uint8_t retranslate = 0;
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44 for (int i = 1; i < argc; i++)
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45 {
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46 if (argv[i][0] == '-') {
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47 switch(argv[i][1])
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48 {
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49 case 'r':
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50 retranslate = 1;
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51 break;
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52 default:
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53 fprintf(stderr, "Unrecognized switch -%c\n", argv[i][1]);
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54 exit(1);
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55 }
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56 } else if (!fname) {
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57 fname = argv[i];
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58 }
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59 }
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60 if (!fname) {
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61 fputs("usage: ztestrun zrom [cartrom]\n", stderr);
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62 exit(1);
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63 }
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64 FILE * f = fopen(fname, "rb");
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65 if (!f) {
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66 fprintf(stderr, "unable to open file %s\n", fname);
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67 exit(1);
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68 }
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69 fseek(f, 0, SEEK_END);
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70 filesize = ftell(f);
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71 fseek(f, 0, SEEK_SET);
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72 filesize = filesize < sizeof(z80_ram) ? filesize : sizeof(z80_ram);
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73 if (fread(z80_ram, 1, filesize, f) != filesize) {
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74 fprintf(stderr, "error reading %s\n",fname);
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75 exit(1);
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76 }
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77 fclose(f);
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78 init_z80_opts(&opts, z80_map, 2, 1);
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79 init_z80_context(&context, &opts);
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80 //Z80 RAM
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81 context.mem_pointers[0] = z80_ram;
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82 if (retranslate) {
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83 //run core long enough to translate code
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84 z80_run(&context, 1);
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85 for (int i = 0; i < filesize; i++)
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86 {
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87 z80_handle_code_write(i, &context);
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88 }
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89 z80_assert_reset(&context, context.current_cycle);
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90 z80_clear_reset(&context, context.current_cycle + 3);
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91 z80_adjust_cycles(&context, context.current_cycle);
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92 }
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93 z80_run(&context, 1000);
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94 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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95 context.regs[Z80_A], context.regs[Z80_B], context.regs[Z80_C],
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96 context.regs[Z80_D], context.regs[Z80_E],
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97 (context.regs[Z80_H] << 8) | context.regs[Z80_L],
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98 (context.regs[Z80_IXH] << 8) | context.regs[Z80_IXL],
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99 (context.regs[Z80_IYH] << 8) | context.regs[Z80_IYL],
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100 context.sp, context.im, context.iff1, context.iff2);
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101 printf("Flags: SZVNC\n"
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102 " %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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103 puts("--Alternate Regs--");
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104 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\n",
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105 context.alt_regs[Z80_A], context.alt_regs[Z80_B], context.alt_regs[Z80_C],
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106 context.alt_regs[Z80_D], context.alt_regs[Z80_E],
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107 (context.alt_regs[Z80_H] << 8) | context.alt_regs[Z80_L]);
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108 return 0;
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109 }