Mercurial > repos > blastem
annotate gst.c @ 459:c49ecf575784
Revert change to VBLANK flag timing based on new direct color DMA test
author | Mike Pavone <pavone@retrodev.com> |
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date | Sun, 08 Sep 2013 20:48:33 -0700 |
parents | b7c3b2d22858 |
children | 140af5509ce7 |
rev | line source |
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b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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1 #include "gst.h" |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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2 #include <string.h> |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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3 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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4 #define GST_68K_REGS 0x80 |
b7c3b2d22858
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5 #define GST_68K_REG_SIZE (0xDA-GST_68K_REGS) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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6 #define GST_68K_PC_OFFSET (0xC8-GST_68K_REGS) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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7 #define GST_68K_SR_OFFSET (0xD0-GST_68K_REGS) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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8 #define GST_68K_USP_OFFSET (0xD2-GST_68K_REGS) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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9 #define GST_68K_SSP_OFFSET (0xD6-GST_68K_REGS) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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10 #define GST_68K_RAM 0x2478 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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11 #define GST_Z80_REGS 0x404 |
b7c3b2d22858
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12 #define GST_Z80_REG_SIZE (0x440-GST_Z80_REGS) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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13 #define GST_Z80_RAM 0x474 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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14 #define GST_VDP_REGS 0xFA |
b7c3b2d22858
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15 #define GST_VDP_MEM 0x12478 |
b7c3b2d22858
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16 #define GST_YM_OFFSET 0x1E4 |
b7c3b2d22858
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17 #define GST_YM_SIZE (0x3E4-GST_YM_OFFSET) |
b7c3b2d22858
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18 |
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19 uint32_t read_le_32(uint8_t * data) |
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20 { |
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21 return data[3] << 24 | data[2] << 16 | data[1] << 8 | data[0]; |
b7c3b2d22858
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22 } |
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23 |
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24 uint16_t read_le_16(uint8_t * data) |
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25 { |
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26 return data[1] << 8 | data[0]; |
b7c3b2d22858
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27 } |
b7c3b2d22858
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28 |
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29 uint16_t read_be_16(uint8_t * data) |
b7c3b2d22858
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30 { |
b7c3b2d22858
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31 return data[0] << 8 | data[1]; |
b7c3b2d22858
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32 } |
b7c3b2d22858
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33 |
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34 void write_le_32(uint8_t * dst, uint32_t val) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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35 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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36 dst[0] = val; |
b7c3b2d22858
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37 dst[1] = val >> 8; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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38 dst[2] = val >> 16; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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39 dst[3] = val >> 24; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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40 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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41 |
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Added support for saving savestates. Added gst savestate format test harness
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42 void write_le_16(uint8_t * dst, uint16_t val) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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43 { |
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44 dst[0] = val; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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45 dst[1] = val >> 8; |
b7c3b2d22858
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46 } |
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47 |
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48 void write_be_32(uint8_t * dst, uint32_t val) |
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49 { |
b7c3b2d22858
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50 dst[0] = val >> 24; |
b7c3b2d22858
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51 dst[1] = val >> 16; |
b7c3b2d22858
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52 dst[2] = val >> 8; |
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53 dst[3] = val; |
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54 } |
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55 |
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Added support for saving savestates. Added gst savestate format test harness
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56 void write_be_16(uint8_t * dst, uint16_t val) |
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57 { |
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58 dst[0] = val >> 8; |
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59 dst[1] = val; |
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60 } |
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61 |
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62 uint32_t m68k_load_gst(m68k_context * context, FILE * gstfile) |
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63 { |
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64 uint8_t buffer[4096]; |
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65 fseek(gstfile, GST_68K_REGS, SEEK_SET); |
b7c3b2d22858
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66 if (fread(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) { |
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67 fputs("Failed to read 68K registers from savestate\n", stderr); |
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68 return 0; |
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69 } |
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70 uint8_t * curpos = buffer; |
b7c3b2d22858
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71 for (int i = 0; i < 8; i++) { |
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72 context->dregs[i] = read_le_32(curpos); |
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73 curpos += sizeof(uint32_t); |
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74 } |
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75 for (int i = 0; i < 8; i++) { |
b7c3b2d22858
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76 context->aregs[i] = read_le_32(curpos); |
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77 curpos += sizeof(uint32_t); |
b7c3b2d22858
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78 } |
b7c3b2d22858
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79 uint32_t pc = read_le_32(buffer + GST_68K_PC_OFFSET); |
b7c3b2d22858
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80 uint16_t sr = read_le_16(buffer + GST_68K_SR_OFFSET); |
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81 context->status = sr >> 8; |
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82 for (int flag = 4; flag >= 0; flag--) { |
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83 context->flags[flag] = sr & 1; |
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84 sr >>= 1; |
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85 } |
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86 if (context->status & (1 << 5)) { |
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87 context->aregs[8] = read_le_32(buffer + GST_68K_USP_OFFSET); |
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88 } else { |
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89 context->aregs[8] = read_le_32(buffer + GST_68K_SSP_OFFSET); |
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90 } |
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91 fseek(gstfile, GST_68K_RAM, SEEK_SET); |
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92 for (int i = 0; i < (32*1024);) { |
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93 if (fread(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) { |
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94 fputs("Failed to read 68K RAM from savestate\n", stderr); |
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95 return 0; |
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96 } |
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97 for(curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) { |
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98 context->mem_pointers[1][i++] = read_be_16(curpos); |
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99 } |
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100 } |
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101 return pc; |
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102 } |
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103 |
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104 uint8_t m68k_save_gst(m68k_context * context, uint32_t pc, FILE * gstfile) |
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105 { |
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106 uint8_t buffer[4096]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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107 uint8_t * curpos = buffer; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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108 for (int i = 0; i < 8; i++) { |
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109 write_le_32(curpos, context->dregs[i]); |
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110 curpos += sizeof(uint32_t); |
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111 } |
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112 for (int i = 0; i < 8; i++) { |
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113 write_le_32(curpos, context->aregs[i]); |
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114 curpos += sizeof(uint32_t); |
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115 } |
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116 write_le_32(buffer + GST_68K_PC_OFFSET, pc); |
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117 uint16_t sr = context->status << 3; |
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118 for (int flag = 4; flag >= 0; flag--) { |
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119 sr <<= 1; |
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120 sr |= context->flags[flag]; |
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121 } |
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122 write_le_16(buffer + GST_68K_SR_OFFSET, sr); |
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123 if (context->status & (1 << 5)) { |
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124 write_le_32(buffer + GST_68K_USP_OFFSET, context->aregs[8]); |
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125 write_le_32(buffer + GST_68K_SSP_OFFSET, context->aregs[7]); |
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126 } else { |
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127 write_le_32(buffer + GST_68K_USP_OFFSET, context->aregs[7]); |
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128 write_le_32(buffer + GST_68K_SSP_OFFSET, context->aregs[8]); |
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129 } |
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130 fseek(gstfile, GST_68K_REGS, SEEK_SET); |
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131 if (fwrite(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) { |
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132 fputs("Failed to write 68K registers to savestate\n", stderr); |
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133 return 0; |
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134 } |
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135 |
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136 fseek(gstfile, GST_68K_RAM, SEEK_SET); |
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137 for (int i = 0; i < (32*1024);) { |
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138 for(curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) { |
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139 write_be_16(curpos, context->mem_pointers[1][i++]); |
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140 } |
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141 if (fwrite(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) { |
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142 fputs("Failed to write 68K RAM to savestate\n", stderr); |
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143 return 0; |
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144 } |
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145 } |
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146 return 1; |
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147 } |
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148 |
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149 uint8_t z80_load_gst(z80_context * context, FILE * gstfile) |
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150 { |
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151 uint8_t regdata[GST_Z80_REG_SIZE]; |
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152 fseek(gstfile, GST_Z80_REGS, SEEK_SET); |
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153 if (fread(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) { |
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154 fputs("Failed to read Z80 registers from savestate\n", stderr); |
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155 return 0; |
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156 } |
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157 uint8_t * curpos = regdata; |
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158 uint8_t f = *(curpos++); |
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159 context->flags[ZF_C] = f & 1; |
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160 f >>= 1; |
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161 context->flags[ZF_N] = f & 1; |
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162 f >>= 1; |
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163 context->flags[ZF_PV] = f & 1; |
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164 f >>= 2; |
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165 context->flags[ZF_H] = f & 1; |
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166 f >>= 2; |
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167 context->flags[ZF_Z] = f & 1; |
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168 f >>= 1; |
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169 context->flags[ZF_S] = f; |
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170 |
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171 context->regs[Z80_A] = *curpos; |
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172 curpos += 3; |
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173 for (int reg = Z80_C; reg <= Z80_IYH; reg++) { |
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174 context->regs[reg++] = *(curpos++); |
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175 context->regs[reg] = *curpos; |
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176 curpos += 3; |
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177 } |
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178 context->pc = read_le_16(curpos); |
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179 curpos += 4; |
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180 context->sp = read_le_16(curpos); |
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181 curpos += 4; |
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182 f = *(curpos++); |
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183 context->alt_flags[ZF_C] = f & 1; |
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184 f >>= 1; |
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185 context->alt_flags[ZF_N] = f & 1; |
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186 f >>= 1; |
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187 context->alt_flags[ZF_PV] = f & 1; |
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188 f >>= 2; |
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189 context->alt_flags[ZF_H] = f & 1; |
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190 f >>= 2; |
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191 context->alt_flags[ZF_Z] = f & 1; |
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192 f >>= 1; |
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193 context->alt_flags[ZF_S] = f; |
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194 context->alt_regs[Z80_A] = *curpos; |
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195 curpos += 3; |
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196 for (int reg = Z80_C; reg <= Z80_H; reg++) { |
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197 context->alt_regs[reg++] = *(curpos++); |
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198 context->alt_regs[reg] = *curpos; |
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199 curpos += 3; |
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200 } |
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201 context->regs[Z80_I] = *curpos; |
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202 curpos += 2; |
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203 context->iff1 = context->iff2 = *curpos; |
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204 curpos += 2; |
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|
205 reset = !*(curpos++); |
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|
206 busreq = *curpos; |
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|
207 curpos += 3; |
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|
208 uint32_t bank = read_le_32(curpos); |
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|
209 if (bank < 0x400000) { |
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|
210 context->mem_pointers[1] = context->mem_pointers[2] + bank; |
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|
211 } else { |
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|
212 context->mem_pointers[1] = NULL; |
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|
213 } |
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|
214 context->bank_reg = bank >> 15; |
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|
215 fseek(gstfile, GST_Z80_RAM, SEEK_SET); |
b7c3b2d22858
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changeset
|
216 if(fread(context->mem_pointers[0], 1, 8*1024, gstfile) != (8*1024)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
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217 fputs("Failed to read Z80 RAM from savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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218 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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|
219 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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220 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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221 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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|
222 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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223 uint8_t vdp_load_gst(vdp_context * context, FILE * state_file) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
224 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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225 uint8_t tmp_buf[CRAM_SIZE*2]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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226 fseek(state_file, GST_VDP_REGS, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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227 if (fread(context->regs, 1, VDP_REGS, state_file) != VDP_REGS) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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228 fputs("Failed to read VDP registers from savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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229 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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230 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
231 context->double_res = (context->regs[REG_MODE_4] & (BIT_INTERLACE | BIT_DOUBLE_RES)) == (BIT_INTERLACE | BIT_DOUBLE_RES); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
|
232 if (!context->double_res) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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233 context->framebuf = context->oddbuf; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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234 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
|
235 latch_mode(context); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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236 if (fread(tmp_buf, 1, sizeof(tmp_buf), state_file) != sizeof(tmp_buf)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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237 fputs("Failed to read CRAM from savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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238 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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239 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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240 for (int i = 0; i < CRAM_SIZE; i++) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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241 uint16_t value; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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242 context->cram[i] = value = (tmp_buf[i*2+1] << 8) | tmp_buf[i*2]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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243 context->colors[i] = color_map[value & 0xEEE]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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changeset
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244 context->colors[i + CRAM_SIZE] = color_map[(value & 0xEEE) | FBUF_SHADOW]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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changeset
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245 context->colors[i + CRAM_SIZE*2] = color_map[(value & 0xEEE) | FBUF_HILIGHT]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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246 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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247 if (fread(tmp_buf, 2, VSRAM_SIZE, state_file) != VSRAM_SIZE) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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248 fputs("Failed to read VSRAM from savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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249 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
250 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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251 for (int i = 0; i < VSRAM_SIZE; i++) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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252 context->vsram[i] = (tmp_buf[i*2+1] << 8) | tmp_buf[i*2]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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253 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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254 fseek(state_file, GST_VDP_MEM, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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255 if (fread(context->vdpmem, 1, VRAM_SIZE, state_file) != VRAM_SIZE) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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|
256 fputs("Failed to read VRAM from savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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257 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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258 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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259 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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260 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
261 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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|
262 uint8_t vdp_save_gst(vdp_context * context, FILE * outfile) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
263 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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264 uint8_t tmp_buf[CRAM_SIZE*2]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
265 fseek(outfile, GST_VDP_REGS, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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266 if(fwrite(context->regs, 1, VDP_REGS, outfile) != VDP_REGS) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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267 fputs("Error writing VDP regs to savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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268 return 0; |
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Added support for saving savestates. Added gst savestate format test harness
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|
269 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
270 for (int i = 0; i < CRAM_SIZE; i++) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
271 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
272 tmp_buf[i*2] = context->cram[i]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
273 tmp_buf[i*2+1] = context->cram[i] >> 8; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
274 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
275 if (fwrite(tmp_buf, 1, sizeof(tmp_buf), outfile) != sizeof(tmp_buf)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
276 fputs("Error writing CRAM to savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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|
277 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
278 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
279 for (int i = 0; i < VSRAM_SIZE; i++) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
280 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
281 tmp_buf[i*2] = context->vsram[i]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
282 tmp_buf[i*2+1] = context->vsram[i] >> 8; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
283 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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changeset
|
284 if (fwrite(tmp_buf, 2, VSRAM_SIZE, outfile) != VSRAM_SIZE) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
285 fputs("Error writing VSRAM to savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
286 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
diff
changeset
|
287 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
288 fseek(outfile, GST_VDP_MEM, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
changeset
|
289 if (fwrite(context->vdpmem, 1, VRAM_SIZE, outfile) != VRAM_SIZE) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
diff
changeset
|
290 fputs("Error writing VRAM to savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
291 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
|
292 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
293 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
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changeset
|
294 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
295 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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diff
changeset
|
296 uint8_t z80_save_gst(z80_context * context, FILE * gstfile) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
297 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
298 uint8_t regdata[GST_Z80_REG_SIZE]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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changeset
|
299 uint8_t * curpos = regdata; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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diff
changeset
|
300 memset(regdata, 0, sizeof(regdata)); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
301 uint8_t f = context->flags[ZF_S]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
diff
changeset
|
302 f <<= 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
303 f |= context->flags[ZF_Z] ; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
304 f <<= 2; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
305 f |= context->flags[ZF_H]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
306 f <<= 2; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
307 f |= context->flags[ZF_PV]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
308 f <<= 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
309 f |= context->flags[ZF_N]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
310 f <<= 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
311 f |= context->flags[ZF_C]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
312 *(curpos++) = f; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
313 *curpos = context->regs[Z80_A]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
314 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
315 curpos += 3; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
316 for (int reg = Z80_C; reg <= Z80_IYH; reg++) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
317 *(curpos++) = context->regs[reg++]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
318 *curpos = context->regs[reg]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
319 curpos += 3; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
320 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
321 write_le_16(curpos, context->pc); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
322 curpos += 4; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
323 write_le_16(curpos, context->sp); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
324 curpos += 4; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
325 f = context->alt_flags[ZF_S]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
326 f <<= 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
327 f |= context->alt_flags[ZF_Z] ; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
328 f <<= 2; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
329 f |= context->alt_flags[ZF_H]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
330 f <<= 2; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
331 f |= context->alt_flags[ZF_PV]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
332 f <<= 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
333 f |= context->alt_flags[ZF_N]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
334 f <<= 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
335 f |= context->alt_flags[ZF_C]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
336 *(curpos++) = f; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
337 *curpos = context->alt_regs[Z80_A]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
338 curpos += 3; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
339 for (int reg = Z80_C; reg <= Z80_H; reg++) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
340 *(curpos++) = context->alt_regs[reg++]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
341 *curpos = context->alt_regs[reg]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
342 curpos += 3; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
343 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
344 *curpos = context->regs[Z80_I]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
345 curpos += 2; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
346 *curpos = context->iff1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
347 curpos += 2; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
348 *(curpos++) = !reset; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
349 *curpos = busreq; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
350 curpos += 3; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
351 uint32_t bank = context->bank_reg << 15; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
352 write_le_32(curpos, bank); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
353 fseek(gstfile, GST_Z80_REGS, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
354 if (fwrite(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
355 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
356 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
357 fseek(gstfile, GST_Z80_RAM, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
358 if(fwrite(context->mem_pointers[0], 1, 8*1024, gstfile) != (8*1024)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
359 fputs("Failed to write Z80 RAM to savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
360 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
361 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
362 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
363 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
364 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
365 uint8_t ym_load_gst(ym2612_context * context, FILE * gstfile) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
366 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
367 uint8_t regdata[GST_YM_SIZE]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
368 fseek(gstfile, GST_YM_OFFSET, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
369 if (fread(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
370 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
371 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
372 for (int i = 0; i < sizeof(regdata); i++) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
373 if (i & 0x100) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
374 ym_address_write_part2(context, i & 0xFF); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
375 } else { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
376 ym_address_write_part1(context, i); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
377 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
378 ym_data_write(context, regdata[i]); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
379 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
380 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
381 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
382 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
383 uint8_t ym_save_gst(ym2612_context * context, FILE * gstfile) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
384 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
385 uint8_t regdata[GST_YM_SIZE]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
386 for (int i = 0; i < sizeof(regdata); i++) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
387 if (i & 0x100) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
388 int reg = (i & 0xFF); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
389 if (reg >= YM_PART2_START && reg < YM_REG_END) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
390 regdata[i] = context->part2_regs[reg-YM_PART2_START]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
391 } else { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
392 regdata[i] = 0xFF; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
393 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
394 } else { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
395 if (i >= YM_PART1_START && i < YM_REG_END) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
396 regdata[i] = context->part1_regs[i-YM_PART1_START]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
397 } else { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
398 regdata[i] = 0xFF; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
399 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
400 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
401 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
402 fseek(gstfile, GST_YM_OFFSET, SEEK_SET); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
403 if (fwrite(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
404 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
405 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
406 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
407 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
408 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
409 uint32_t load_gst(genesis_context * gen, char * fname) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
410 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
411 FILE * gstfile = fopen(fname, "rb"); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
412 if (!gstfile) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
413 fprintf(stderr, "Could not open file %s for reading\n", fname); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
414 goto error; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
415 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
416 char ident[5]; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
417 if (fread(ident, 1, sizeof(ident), gstfile) != sizeof(ident)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
418 fprintf(stderr, "Could not read ident code from %s\n", fname); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
419 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
420 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
421 if (memcmp(ident, "GST\x40\xE0", 5) != 0) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
422 fprintf(stderr, "%s doesn't appear to be a GST savestate. The ident code is %c%c%c\\x%X\\x%X instead of GST\\x40\\xE0.\n", fname, ident[0], ident[1], ident[2], ident[3], ident[4]); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
423 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
424 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
425 uint32_t pc = m68k_load_gst(gen->m68k, gstfile); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
426 if (!pc) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
427 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
428 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
429 if (!vdp_load_gst(gen->vdp, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
430 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
431 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
432 if (!ym_load_gst(gen->ym, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
433 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
434 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
435 if (!z80_load_gst(gen->z80, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
436 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
437 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
438 gen->ports[0].control = 0x40; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
439 gen->ports[1].control = 0x40; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
440 fclose(gstfile); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
441 return pc; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
442 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
443 error_close: |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
444 fclose(gstfile); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
445 error: |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
446 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
447 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
448 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
449 uint8_t save_gst(genesis_context * gen, char *fname, uint32_t m68k_pc) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
450 { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
451 FILE * gstfile = fopen(fname, "wb"); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
452 if (!gstfile) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
453 fprintf(stderr, "Could not open %s for writing\n", fname); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
454 goto error; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
455 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
456 if (fwrite("GST\x40\xE0", 1, 5, gstfile) != 5) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
457 fputs("Error writing signature to savestate\n", stderr); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
458 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
459 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
460 if (!m68k_save_gst(gen->m68k, m68k_pc, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
461 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
462 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
463 if (!z80_save_gst(gen->z80, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
464 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
465 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
466 if (!vdp_save_gst(gen->vdp, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
467 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
468 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
469 if (!ym_save_gst(gen->ym, gstfile)) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
470 goto error_close; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
471 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
472 return 1; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
473 |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
474 error_close: |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
475 fclose(gstfile); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
476 error: |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
477 return 0; |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
478 } |