Mercurial > repos > blastem
annotate sms.c @ 2186:935e684f2d58
Fix crash bug in expression parser
author | Michael Pavone <pavone@retrodev.com> |
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date | Sun, 14 Aug 2022 09:55:06 -0700 |
parents | 9a8dd4ba2753 |
children | 01ff005b08f6 |
rev | line source |
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1 #include <string.h> |
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2 #include <stdlib.h> |
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3 #include <stddef.h> |
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4 #include "sms.h" |
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5 #include "blastem.h" |
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6 #include "render.h" |
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7 #include "util.h" |
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8 #include "debug.h" |
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9 #include "saves.h" |
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10 #include "bindings.h" |
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11 |
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12 #ifdef NEW_CORE |
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13 #define Z80_CYCLE cycles |
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14 #define Z80_OPTS opts |
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15 #define z80_handle_code_write(...) |
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16 #else |
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17 #define Z80_CYCLE current_cycle |
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18 #define Z80_OPTS options |
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19 #endif |
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20 |
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21 static void *memory_io_write(uint32_t location, void *vcontext, uint8_t value) |
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22 { |
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23 z80_context *z80 = vcontext; |
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24 sms_context *sms = z80->system; |
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25 if (location & 1) { |
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26 uint8_t fuzzy_ctrl_0 = sms->io.ports[0].control, fuzzy_ctrl_1 = sms->io.ports[1].control; |
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27 io_control_write(sms->io.ports, (~value) << 5 & 0x60, z80->Z80_CYCLE); |
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28 fuzzy_ctrl_0 |= sms->io.ports[0].control; |
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29 io_control_write(sms->io.ports+1, (~value) << 3 & 0x60, z80->Z80_CYCLE); |
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30 fuzzy_ctrl_1 |= sms->io.ports[1].control; |
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31 if ( |
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32 (fuzzy_ctrl_0 & 0x40 & (sms->io.ports[0].output ^ (value << 1)) & (value << 1)) |
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33 || (fuzzy_ctrl_0 & 0x40 & (sms->io.ports[1].output ^ (value >> 1)) & (value >> 1)) |
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34 ) { |
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35 //TH is an output and it went from 0 -> 1 |
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36 vdp_run_context(sms->vdp, z80->Z80_CYCLE); |
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37 vdp_latch_hv(sms->vdp); |
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38 } |
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39 io_data_write(sms->io.ports, value << 1, z80->Z80_CYCLE); |
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40 io_data_write(sms->io.ports + 1, value >> 1, z80->Z80_CYCLE); |
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41 } else { |
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42 //TODO: memory control write |
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43 } |
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44 return vcontext; |
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45 } |
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46 |
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47 static uint8_t hv_read(uint32_t location, void *vcontext) |
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48 { |
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49 z80_context *z80 = vcontext; |
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50 sms_context *sms = z80->system; |
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51 vdp_run_context(sms->vdp, z80->Z80_CYCLE); |
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52 uint16_t hv = vdp_hv_counter_read(sms->vdp); |
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53 if (location & 1) { |
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54 return hv; |
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55 } else { |
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56 return hv >> 8; |
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57 } |
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58 } |
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59 |
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60 static void *sms_psg_write(uint32_t location, void *vcontext, uint8_t value) |
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61 { |
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62 z80_context *z80 = vcontext; |
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63 sms_context *sms = z80->system; |
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64 psg_run(sms->psg, z80->Z80_CYCLE); |
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65 psg_write(sms->psg, value); |
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66 return vcontext; |
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67 } |
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68 |
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69 static void update_interrupts(sms_context *sms) |
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70 { |
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71 uint32_t vint = vdp_next_vint(sms->vdp); |
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72 uint32_t hint = vdp_next_hint(sms->vdp); |
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73 #ifdef NEW_CORE |
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74 sms->z80->int_cycle = vint < hint ? vint : hint; |
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75 z80_sync_cycle(sms->z80, sms->z80->sync_cycle); |
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76 #else |
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77 sms->z80->int_pulse_start = vint < hint ? vint : hint; |
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78 #endif |
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79 } |
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80 |
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81 static uint8_t vdp_read(uint32_t location, void *vcontext) |
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82 { |
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83 z80_context *z80 = vcontext; |
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84 sms_context *sms = z80->system; |
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85 vdp_run_context(sms->vdp, z80->Z80_CYCLE); |
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86 if (location & 1) { |
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87 uint8_t ret = vdp_control_port_read(sms->vdp); |
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88 sms->vdp->flags2 &= ~(FLAG2_VINT_PENDING|FLAG2_HINT_PENDING); |
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89 update_interrupts(sms); |
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90 return ret; |
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91 } else { |
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92 return vdp_data_port_read_pbc(sms->vdp); |
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93 } |
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94 } |
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95 |
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96 static void *vdp_write(uint32_t location, void *vcontext, uint8_t value) |
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97 { |
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98 z80_context *z80 = vcontext; |
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99 sms_context *sms = z80->system; |
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100 if (location & 1) { |
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101 vdp_run_context_full(sms->vdp, z80->Z80_CYCLE); |
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102 vdp_control_port_write_pbc(sms->vdp, value); |
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103 update_interrupts(sms); |
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104 } else { |
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105 vdp_run_context(sms->vdp, z80->Z80_CYCLE); |
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106 vdp_data_port_write_pbc(sms->vdp, value); |
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107 } |
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108 return vcontext; |
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109 } |
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110 |
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111 static uint8_t io_read(uint32_t location, void *vcontext) |
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112 { |
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113 z80_context *z80 = vcontext; |
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114 sms_context *sms = z80->system; |
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115 if (location == 0xC0 || location == 0xDC) { |
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116 uint8_t port_a = io_data_read(sms->io.ports, z80->Z80_CYCLE); |
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117 uint8_t port_b = io_data_read(sms->io.ports+1, z80->Z80_CYCLE); |
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118 return (port_a & 0x3F) | (port_b << 6); |
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119 } |
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120 if (location == 0xC1 || location == 0xDD) { |
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121 uint8_t port_a = io_data_read(sms->io.ports, z80->Z80_CYCLE); |
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122 uint8_t port_b = io_data_read(sms->io.ports+1, z80->Z80_CYCLE); |
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123 return (port_a & 0x40) | (port_b >> 2 & 0xF) | (port_b << 1 & 0x80) | 0x10; |
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124 } |
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125 return 0xFF; |
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126 } |
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127 |
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128 static void update_mem_map(uint32_t location, sms_context *sms, uint8_t value) |
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129 { |
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130 z80_context *z80 = sms->z80; |
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131 void *old_value; |
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132 if (location) { |
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133 uint32_t idx = location - 1; |
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134 old_value = z80->mem_pointers[idx]; |
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135 z80->mem_pointers[idx] = sms->rom + (value << 14 & (sms->rom_size-1)); |
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136 if (old_value != z80->mem_pointers[idx]) { |
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137 //invalidate any code we translated for the relevant bank |
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138 z80_invalidate_code_range(z80, idx ? idx * 0x4000 : 0x400, idx * 0x4000 + 0x4000); |
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139 } |
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140 } else { |
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141 old_value = z80->mem_pointers[2]; |
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142 if (value & 8) { |
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143 //cartridge RAM is enabled |
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144 z80->mem_pointers[2] = sms->cart_ram + (value & 4 ? (SMS_CART_RAM_SIZE/2) : 0); |
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145 } else { |
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146 //cartridge RAM is disabled |
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147 z80->mem_pointers[2] = sms->rom + (sms->bank_regs[3] << 14 & (sms->rom_size-1)); |
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148 } |
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149 if (old_value != z80->mem_pointers[2]) { |
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150 //invalidate any code we translated for the relevant bank |
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151 z80_invalidate_code_range(z80, 0x8000, 0xC000); |
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152 } |
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153 } |
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154 } |
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155 |
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156 static void *mapper_write(uint32_t location, void *vcontext, uint8_t value) |
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157 { |
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158 z80_context *z80 = vcontext; |
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159 sms_context *sms = z80->system; |
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160 location &= 3; |
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161 sms->ram[0x1FFC + location] = value; |
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162 sms->bank_regs[location] = value; |
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163 update_mem_map(location, sms, value); |
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164 return vcontext; |
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165 } |
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166 |
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167 static void *cart_ram_write(uint32_t location, void *vcontext, uint8_t value) |
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168 { |
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169 z80_context *z80 = vcontext; |
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170 sms_context *sms = z80->system; |
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171 if (sms->bank_regs[0] & 8) { |
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172 //cartridge RAM is enabled |
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173 location &= 0x3FFF; |
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174 z80->mem_pointers[2][location] = value; |
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175 z80_handle_code_write(0x8000 + location, z80); |
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176 } |
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177 return vcontext; |
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178 } |
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179 |
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180 uint8_t debug_commands(system_header *system, char *input_buf) |
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181 { |
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182 sms_context *sms = (sms_context *)system; |
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183 switch(input_buf[0]) |
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184 { |
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185 case 'v': |
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186 if (input_buf[1] == 'r') { |
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187 vdp_print_reg_explain(sms->vdp); |
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188 } else if (input_buf[1] == 's') { |
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189 vdp_print_sprite_table(sms->vdp); |
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190 } else { |
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191 return 0; |
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192 } |
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193 break; |
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194 } |
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195 return 1; |
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196 } |
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197 |
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198 static memmap_chunk io_map[] = { |
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199 {0x00, 0x40, 0xFF, .write_8 = memory_io_write}, |
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200 {0x40, 0x80, 0xFF, .read_8 = hv_read, .write_8 = sms_psg_write}, |
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201 {0x80, 0xC0, 0xFF, .read_8 = vdp_read, .write_8 = vdp_write}, |
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202 {0xC0, 0x100,0xFF, .read_8 = io_read} |
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203 }; |
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204 |
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205 static void set_speed_percent(system_header * system, uint32_t percent) |
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206 { |
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207 sms_context *context = (sms_context *)system; |
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208 uint32_t old_clock = context->master_clock; |
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209 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100; |
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210 |
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211 psg_adjust_master_clock(context->psg, context->master_clock); |
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212 } |
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213 |
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214 void sms_serialize(sms_context *sms, serialize_buffer *buf) |
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215 { |
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216 start_section(buf, SECTION_Z80); |
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217 z80_serialize(sms->z80, buf); |
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218 end_section(buf); |
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219 |
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220 start_section(buf, SECTION_VDP); |
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221 vdp_serialize(sms->vdp, buf); |
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222 end_section(buf); |
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223 |
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224 start_section(buf, SECTION_PSG); |
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225 psg_serialize(sms->psg, buf); |
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226 end_section(buf); |
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227 |
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228 start_section(buf, SECTION_SEGA_IO_1); |
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229 io_serialize(sms->io.ports, buf); |
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230 end_section(buf); |
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231 |
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232 start_section(buf, SECTION_SEGA_IO_2); |
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233 io_serialize(sms->io.ports + 1, buf); |
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234 end_section(buf); |
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235 |
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236 start_section(buf, SECTION_MAIN_RAM); |
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237 save_int8(buf, sizeof(sms->ram) / 1024); |
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238 save_buffer8(buf, sms->ram, sizeof(sms->ram)); |
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239 end_section(buf); |
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240 |
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241 start_section(buf, SECTION_MAPPER); |
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242 save_int8(buf, 1);//mapper type, 1 for Sega mapper |
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243 save_buffer8(buf, sms->bank_regs, sizeof(sms->bank_regs)); |
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244 end_section(buf); |
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245 |
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246 start_section(buf, SECTION_CART_RAM); |
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247 save_int8(buf, SMS_CART_RAM_SIZE / 1024); |
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248 save_buffer8(buf, sms->cart_ram, SMS_CART_RAM_SIZE); |
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249 end_section(buf); |
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250 } |
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251 |
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252 static uint8_t *serialize(system_header *sys, size_t *size_out) |
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253 { |
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254 sms_context *sms = (sms_context *)sys; |
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255 serialize_buffer state; |
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256 init_serialize(&state); |
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257 sms_serialize(sms, &state); |
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258 if (size_out) { |
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259 *size_out = state.size; |
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260 } |
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261 return state.data; |
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262 } |
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263 |
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264 static void ram_deserialize(deserialize_buffer *buf, void *vsms) |
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265 { |
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266 sms_context *sms = vsms; |
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267 uint32_t ram_size = load_int8(buf) * 1024; |
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268 if (ram_size > sizeof(sms->ram)) { |
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269 fatal_error("State has a RAM size of %d bytes", ram_size); |
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270 } |
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271 load_buffer8(buf, sms->ram, ram_size); |
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272 } |
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273 |
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274 static void cart_ram_deserialize(deserialize_buffer *buf, void *vsms) |
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275 { |
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276 sms_context *sms = vsms; |
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277 uint32_t ram_size = load_int8(buf) * 1024; |
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278 if (ram_size > SMS_CART_RAM_SIZE) { |
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279 fatal_error("State has a cart RAM size of %d bytes", ram_size); |
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280 } |
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281 load_buffer8(buf, sms->cart_ram, ram_size); |
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282 } |
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283 |
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284 static void mapper_deserialize(deserialize_buffer *buf, void *vsms) |
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285 { |
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286 sms_context *sms = vsms; |
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287 uint8_t mapper_type = load_int8(buf); |
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288 if (mapper_type != 1) { |
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289 warning("State contains an unrecognized mapper type %d, it may be from a newer version of BlastEm\n", mapper_type); |
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290 return; |
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291 } |
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292 for (int i = 0; i < sizeof(sms->bank_regs); i++) |
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293 { |
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294 sms->bank_regs[i] = load_int8(buf); |
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295 update_mem_map(i, sms, sms->bank_regs[i]); |
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296 } |
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297 } |
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298 |
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299 void sms_deserialize(deserialize_buffer *buf, sms_context *sms) |
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300 { |
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301 register_section_handler(buf, (section_handler){.fun = z80_deserialize, .data = sms->z80}, SECTION_Z80); |
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302 register_section_handler(buf, (section_handler){.fun = vdp_deserialize, .data = sms->vdp}, SECTION_VDP); |
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303 register_section_handler(buf, (section_handler){.fun = psg_deserialize, .data = sms->psg}, SECTION_PSG); |
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304 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = sms->io.ports}, SECTION_SEGA_IO_1); |
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305 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = sms->io.ports + 1}, SECTION_SEGA_IO_2); |
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306 register_section_handler(buf, (section_handler){.fun = ram_deserialize, .data = sms}, SECTION_MAIN_RAM); |
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307 register_section_handler(buf, (section_handler){.fun = mapper_deserialize, .data = sms}, SECTION_MAPPER); |
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308 register_section_handler(buf, (section_handler){.fun = cart_ram_deserialize, .data = sms}, SECTION_CART_RAM); |
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309 //TODO: cart RAM |
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310 while (buf->cur_pos < buf->size) |
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311 { |
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312 load_section(buf); |
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313 } |
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314 z80_invalidate_code_range(sms->z80, 0xC000, 0x10000); |
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315 if (sms->bank_regs[0] & 8) { |
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316 //cart RAM is enabled, invalidate the region in case there is any code there |
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317 z80_invalidate_code_range(sms->z80, 0x8000, 0xC000); |
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318 } |
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319 free(buf->handlers); |
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320 buf->handlers = NULL; |
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321 } |
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322 |
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323 static void deserialize(system_header *sys, uint8_t *data, size_t size) |
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324 { |
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325 sms_context *sms = (sms_context *)sys; |
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326 deserialize_buffer buffer; |
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327 init_deserialize(&buffer, data, size); |
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328 sms_deserialize(&buffer, sms); |
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329 } |
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330 |
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331 static void save_state(sms_context *sms, uint8_t slot) |
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332 { |
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333 char *save_path = get_slot_name(&sms->header, slot, "state"); |
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334 serialize_buffer state; |
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335 init_serialize(&state); |
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336 sms_serialize(sms, &state); |
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337 save_to_file(&state, save_path); |
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338 printf("Saved state to %s\n", save_path); |
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339 free(save_path); |
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340 free(state.data); |
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341 } |
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342 |
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343 static uint8_t load_state_path(sms_context *sms, char *path) |
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344 { |
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345 deserialize_buffer state; |
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346 uint8_t ret; |
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347 if ((ret = load_from_file(&state, path))) { |
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348 sms_deserialize(&state, sms); |
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349 free(state.data); |
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350 printf("Loaded %s\n", path); |
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351 } |
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352 return ret; |
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353 } |
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354 |
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355 static uint8_t load_state(system_header *system, uint8_t slot) |
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356 { |
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357 sms_context *sms = (sms_context *)system; |
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358 char *statepath = get_slot_name(system, slot, "state"); |
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359 uint8_t ret; |
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360 #ifndef NEW_CORE |
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361 if (!sms->z80->native_pc) { |
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362 ret = get_modification_time(statepath) != 0; |
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363 if (ret) { |
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364 system->delayed_load_slot = slot + 1; |
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365 } |
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366 goto done; |
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367 |
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368 } |
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369 #endif |
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370 ret = load_state_path(sms, statepath); |
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371 done: |
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372 free(statepath); |
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373 return ret; |
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374 } |
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375 |
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376 static void run_sms(system_header *system) |
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377 { |
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378 sms_context *sms = (sms_context *)system; |
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379 uint32_t target_cycle = sms->z80->Z80_CYCLE + 3420*16; |
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380 //TODO: PAL support |
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381 render_set_video_standard(VID_NTSC); |
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382 while (!sms->should_return) |
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383 { |
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384 if (system->delayed_load_slot) { |
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385 load_state(system, system->delayed_load_slot - 1); |
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386 system->delayed_load_slot = 0; |
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387 |
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388 } |
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389 if (sms->vdp->frame != sms->last_frame) { |
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390 uint32_t elapsed = sms->vdp->frame - sms->last_frame; |
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391 sms->last_frame = sms->vdp->frame; |
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392 if (system->enter_debugger_frames) { |
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393 if (elapsed >= system->enter_debugger_frames) { |
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394 system->enter_debugger_frames = 0; |
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395 system->enter_debugger = 1; |
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396 } else { |
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397 system->enter_debugger_frames -= elapsed; |
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398 } |
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399 } |
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400 |
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401 if(exit_after){ |
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402 if (elapsed >= exit_after) { |
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403 exit(0); |
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404 } else { |
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405 exit_after -= elapsed; |
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406 } |
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407 } |
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408 } |
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409 if (system->enter_debugger && sms->z80->pc) { |
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410 system->enter_debugger = 0; |
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411 zdebugger(sms->z80, sms->z80->pc); |
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412 } |
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413 #ifdef NEW_CORE |
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414 if (sms->z80->nmi_cycle == CYCLE_NEVER) { |
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415 #else |
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416 if (sms->z80->nmi_start == CYCLE_NEVER) { |
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417 #endif |
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418 uint32_t nmi = vdp_next_nmi(sms->vdp); |
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419 if (nmi != CYCLE_NEVER) { |
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|
420 z80_assert_nmi(sms->z80, nmi); |
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421 } |
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422 } |
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423 z80_run(sms->z80, target_cycle); |
1209
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
424 if (sms->z80->reset) { |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
425 z80_clear_reset(sms->z80, sms->z80->Z80_CYCLE + 128*15); |
1209
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
426 } |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
427 target_cycle = sms->z80->Z80_CYCLE; |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
428 vdp_run_context(sms->vdp, target_cycle); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
429 psg_run(sms->psg, target_cycle); |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
430 |
1433
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
431 if (system->save_state) { |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
432 while (!sms->z80->pc) { |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
433 //advance Z80 to an instruction boundary |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
434 z80_run(sms->z80, sms->z80->Z80_CYCLE + 1); |
1433
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
435 } |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
436 save_state(sms, system->save_state - 1); |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
437 system->save_state = 0; |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
438 } |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
439 |
1377
e587f16e7d3d
Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents:
1371
diff
changeset
|
440 target_cycle += 3420*16; |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
441 if (target_cycle > 0x10000000) { |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
442 uint32_t adjust = sms->z80->Z80_CYCLE - 3420*262*2; |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
443 io_adjust_cycles(sms->io.ports, sms->z80->Z80_CYCLE, adjust); |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
444 io_adjust_cycles(sms->io.ports+1, sms->z80->Z80_CYCLE, adjust); |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
445 z80_adjust_cycles(sms->z80, adjust); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
446 vdp_adjust_cycles(sms->vdp, adjust); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
447 sms->psg->cycles -= adjust; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
448 target_cycle -= adjust; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
449 } |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
450 } |
1980
81df9aa2de9b
Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents:
1932
diff
changeset
|
451 if (sms->header.force_release || render_should_release_on_exit()) { |
1932
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
452 bindings_release_capture(); |
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
453 vdp_release_framebuffer(sms->vdp); |
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
454 render_pause_source(sms->psg->audio); |
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
455 } |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
456 sms->should_return = 0; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
457 } |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
458 |
1401
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
|
459 static void resume_sms(system_header *system) |
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
|
460 { |
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
|
461 sms_context *sms = (sms_context *)system; |
1980
81df9aa2de9b
Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents:
1932
diff
changeset
|
462 if (sms->header.force_release || render_should_release_on_exit()) { |
81df9aa2de9b
Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents:
1932
diff
changeset
|
463 sms->header.force_release = 0; |
1932
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
464 bindings_reacquire_capture(); |
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
465 vdp_reacquire_framebuffer(sms->vdp); |
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
466 render_resume_source(sms->psg->audio); |
b387f1c5a1d0
WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents:
1906
diff
changeset
|
467 } |
1401
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
|
468 run_sms(system); |
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
|
469 } |
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
|
470 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
471 static void start_sms(system_header *system, char *statefile) |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
472 { |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
473 sms_context *sms = (sms_context *)system; |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
474 |
1433
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
475 z80_assert_reset(sms->z80, 0); |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
476 z80_clear_reset(sms->z80, 128*15); |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
477 |
1433
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
478 if (statefile) { |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
479 load_state_path(sms, statefile); |
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
480 } |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
481 |
1129
6b5c92b6205c
Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents:
1126
diff
changeset
|
482 if (system->enter_debugger) { |
6b5c92b6205c
Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents:
1126
diff
changeset
|
483 system->enter_debugger = 0; |
1433
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
484 zinsert_breakpoint(sms->z80, sms->z80->pc, (uint8_t *)zdebugger); |
1129
6b5c92b6205c
Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents:
1126
diff
changeset
|
485 } |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
486 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
487 run_sms(system); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
488 } |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
489 |
1209
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
490 static void soft_reset(system_header *system) |
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
491 { |
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
492 sms_context *sms = (sms_context *)system; |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
493 z80_assert_reset(sms->z80, sms->z80->Z80_CYCLE); |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
494 #ifndef NEW_CORE |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
495 sms->z80->target_cycle = sms->z80->sync_cycle = sms->z80->Z80_CYCLE; |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
496 #endif |
1209
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
497 } |
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
498 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
499 static void free_sms(system_header *system) |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
500 { |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
501 sms_context *sms = (sms_context *)system; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
502 vdp_free(sms->vdp); |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
503 z80_options_free(sms->z80->Z80_OPTS); |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
504 free(sms->z80); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
505 psg_free(sms->psg); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
506 free(sms); |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
507 } |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
508 |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
509 static uint16_t get_open_bus_value(system_header *system) |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
510 { |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
511 return 0xFFFF; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
512 } |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
513 |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
514 static void request_exit(system_header *system) |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
515 { |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
516 sms_context *sms = (sms_context *)system; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
517 sms->should_return = 1; |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
518 #ifndef NEW_CORE |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
519 sms->z80->target_cycle = sms->z80->sync_cycle = sms->z80->Z80_CYCLE; |
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
520 #endif |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
521 } |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
522 |
1120
e9369d6f0101
Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents:
1119
diff
changeset
|
523 static void inc_debug_mode(system_header *system) |
e9369d6f0101
Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents:
1119
diff
changeset
|
524 { |
e9369d6f0101
Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents:
1119
diff
changeset
|
525 sms_context *sms = (sms_context *)system; |
1643
6909c5d0bbb5
Removed old VDP debug functionality
Michael Pavone <pavone@retrodev.com>
parents:
1640
diff
changeset
|
526 vdp_inc_debug_mode(sms->vdp); |
1120
e9369d6f0101
Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents:
1119
diff
changeset
|
527 } |
e9369d6f0101
Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents:
1119
diff
changeset
|
528 |
1384
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
1379
diff
changeset
|
529 static void load_save(system_header *system) |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
1379
diff
changeset
|
530 { |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
531 //TODO: Implement me |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
532 } |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
533 |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
534 static void persist_save(system_header *system) |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
535 { |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
536 //TODO: Implement me |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
1379
diff
changeset
|
537 } |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
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changeset
|
538 |
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539 static void gamepad_down(system_header *system, uint8_t gamepad_num, uint8_t button) |
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|
540 { |
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|
541 sms_context *sms = (sms_context *)system; |
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|
542 if (gamepad_num == GAMEPAD_MAIN_UNIT) { |
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Refactor to split device bindings from IO emulation code
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543 if (button == MAIN_UNIT_PAUSE) { |
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|
544 vdp_pbc_pause(sms->vdp); |
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parents:
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diff
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|
545 } |
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|
546 } else { |
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|
547 io_gamepad_down(&sms->io, gamepad_num, button); |
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Refactor to split device bindings from IO emulation code
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|
548 } |
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|
549 } |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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|
550 |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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|
551 static void gamepad_up(system_header *system, uint8_t gamepad_num, uint8_t button) |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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diff
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|
552 { |
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Refactor to split device bindings from IO emulation code
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diff
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|
553 sms_context *sms = (sms_context *)system; |
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parents:
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diff
changeset
|
554 io_gamepad_up(&sms->io, gamepad_num, button); |
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Refactor to split device bindings from IO emulation code
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|
555 } |
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Michael Pavone <pavone@retrodev.com>
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|
556 |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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diff
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|
557 static void mouse_down(system_header *system, uint8_t mouse_num, uint8_t button) |
430dd12e4010
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|
558 { |
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|
559 sms_context *sms = (sms_context *)system; |
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Refactor to split device bindings from IO emulation code
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|
560 io_mouse_down(&sms->io, mouse_num, button); |
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561 } |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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|
562 |
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563 static void mouse_up(system_header *system, uint8_t mouse_num, uint8_t button) |
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|
564 { |
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Refactor to split device bindings from IO emulation code
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|
565 sms_context *sms = (sms_context *)system; |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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|
566 io_mouse_up(&sms->io, mouse_num, button); |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
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|
567 } |
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Michael Pavone <pavone@retrodev.com>
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|
568 |
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Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
569 static void mouse_motion_absolute(system_header *system, uint8_t mouse_num, uint16_t x, uint16_t y) |
430dd12e4010
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diff
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|
570 { |
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Michael Pavone <pavone@retrodev.com>
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|
571 sms_context *sms = (sms_context *)system; |
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572 io_mouse_motion_absolute(&sms->io, mouse_num, x, y); |
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573 } |
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Michael Pavone <pavone@retrodev.com>
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|
574 |
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|
575 static void mouse_motion_relative(system_header *system, uint8_t mouse_num, int32_t x, int32_t y) |
430dd12e4010
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Michael Pavone <pavone@retrodev.com>
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|
576 { |
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|
577 sms_context *sms = (sms_context *)system; |
430dd12e4010
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Michael Pavone <pavone@retrodev.com>
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578 io_mouse_motion_relative(&sms->io, mouse_num, x, y); |
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|
579 } |
430dd12e4010
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|
580 |
430dd12e4010
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changeset
|
581 static void keyboard_down(system_header *system, uint8_t scancode) |
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|
582 { |
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Michael Pavone <pavone@retrodev.com>
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|
583 sms_context *sms = (sms_context *)system; |
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Michael Pavone <pavone@retrodev.com>
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|
584 io_keyboard_down(&sms->io, scancode); |
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|
585 } |
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changeset
|
586 |
430dd12e4010
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|
587 static void keyboard_up(system_header *system, uint8_t scancode) |
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588 { |
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|
589 sms_context *sms = (sms_context *)system; |
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590 io_keyboard_up(&sms->io, scancode); |
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|
591 } |
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diff
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|
592 |
1796
51417bb557b6
Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
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diff
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|
593 static void set_gain_config(sms_context *sms) |
51417bb557b6
Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
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|
594 { |
51417bb557b6
Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
595 char *config_gain; |
51417bb557b6
Configurable gain for overall output and individual components
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parents:
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diff
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|
596 config_gain = tern_find_path(config, "audio\0psg_gain\0", TVAL_PTR).ptrval; |
51417bb557b6
Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents:
1759
diff
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|
597 render_audio_source_gaindb(sms->psg->audio, config_gain ? atof(config_gain) : 0.0f); |
51417bb557b6
Configurable gain for overall output and individual components
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parents:
1759
diff
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|
598 } |
51417bb557b6
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parents:
1759
diff
changeset
|
599 |
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parents:
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diff
changeset
|
600 static void config_updated(system_header *system) |
1117
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Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff
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|
601 { |
1595
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|
602 sms_context *sms = (sms_context *)system; |
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Update controller config when changed in UI without restart
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diff
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|
603 setup_io_devices(config, &system->info, &sms->io); |
360d5bab199f
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diff
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|
604 } |
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Update controller config when changed in UI without restart
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parents:
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diff
changeset
|
605 |
360d5bab199f
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diff
changeset
|
606 |
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diff
changeset
|
607 sms_context *alloc_configure_sms(system_media *media, uint32_t opts, uint8_t force_region) |
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Michael Pavone <pavone@retrodev.com>
parents:
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|
608 { |
1117
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Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
609 sms_context *sms = calloc(1, sizeof(sms_context)); |
1201
aee2177a1630
Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
610 uint32_t rom_size = nearest_pow2(media->size); |
1141
7e199bebde2f
Initial support for Sega's family of SMS mappers
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parents:
1130
diff
changeset
|
611 memmap_chunk memory_map[6]; |
1201
aee2177a1630
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|
612 if (media->size > 0xC000) { |
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|
613 sms->header.info.map_chunks = 6; |
1141
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Initial support for Sega's family of SMS mappers
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diff
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|
614 uint8_t *ram_reg_overlap = sms->ram + sizeof(sms->ram) - 4; |
2134
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Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
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parents:
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diff
changeset
|
615 memory_map[0] = (memmap_chunk){0x0000, 0x0400, 0xFFFF, .flags = MMAP_READ, .buffer = media->buffer}; |
9caebcfeac72
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parents:
1980
diff
changeset
|
616 memory_map[1] = (memmap_chunk){0x0400, 0x4000, 0xFFFF, .ptr_index = 0, .flags = MMAP_READ|MMAP_PTR_IDX|MMAP_CODE}; |
9caebcfeac72
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diff
changeset
|
617 memory_map[2] = (memmap_chunk){0x4000, 0x8000, 0x3FFF, .ptr_index = 1, .flags = MMAP_READ|MMAP_PTR_IDX|MMAP_CODE}; |
9caebcfeac72
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parents:
1980
diff
changeset
|
618 memory_map[3] = (memmap_chunk){0x8000, 0xC000, 0x3FFF, .ptr_index = 2, .flags = MMAP_READ|MMAP_PTR_IDX|MMAP_CODE, .write_8 = cart_ram_write}; |
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
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parents:
1980
diff
changeset
|
619 memory_map[4] = (memmap_chunk){0xC000, 0xFFFC, sizeof(sms->ram)-1, .ptr_index = 0, .flags = MMAP_READ|MMAP_WRITE|MMAP_CODE, .buffer = sms->ram}; |
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
620 memory_map[5] = (memmap_chunk){0xFFFC, 0x10000, 0x0003, .ptr_index = 0, .flags = MMAP_READ, .buffer = ram_reg_overlap, .write_8 = mapper_write}; |
1141
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Initial support for Sega's family of SMS mappers
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|
621 } else { |
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|
622 sms->header.info.map_chunks = 2; |
2134
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Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
623 memory_map[0] = (memmap_chunk){0x0000, 0xC000, rom_size-1, 0, 0, .flags = MMAP_READ, .buffer = media->buffer}; |
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
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parents:
1980
diff
changeset
|
624 memory_map[1] = (memmap_chunk){0xC000, 0x10000, sizeof(sms->ram)-1, 0, 0, .flags = MMAP_READ|MMAP_WRITE|MMAP_CODE, .buffer = sms->ram}; |
1117
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parents:
diff
changeset
|
625 }; |
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|
626 sms->header.info.map = malloc(sizeof(memmap_chunk) * sms->header.info.map_chunks); |
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|
627 memcpy(sms->header.info.map, memory_map, sizeof(memmap_chunk) * sms->header.info.map_chunks); |
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diff
changeset
|
628 z80_options *zopts = malloc(sizeof(z80_options)); |
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1583
diff
changeset
|
629 init_z80_opts(zopts, sms->header.info.map, sms->header.info.map_chunks, io_map, 4, 15, 0xFF); |
1130
8f14767661fa
Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents:
1129
diff
changeset
|
630 sms->z80 = init_z80_context(zopts); |
1117
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parents:
diff
changeset
|
631 sms->z80->system = sms; |
1752
d6d4c006a7b3
Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents:
1690
diff
changeset
|
632 sms->z80->Z80_OPTS->gen.debug_cmd_handler = debug_commands; |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
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parents:
1980
diff
changeset
|
633 |
1201
aee2177a1630
Use filename for game title in SMS mode
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diff
changeset
|
634 sms->rom = media->buffer; |
1141
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Initial support for Sega's family of SMS mappers
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1130
diff
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|
635 sms->rom_size = rom_size; |
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360d5bab199f
Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents:
1583
diff
changeset
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636 if (sms->header.info.map_chunks > 2) { |
1141
7e199bebde2f
Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents:
1130
diff
changeset
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637 sms->z80->mem_pointers[0] = sms->rom; |
7e199bebde2f
Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents:
1130
diff
changeset
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638 sms->z80->mem_pointers[1] = sms->rom + 0x4000; |
7e199bebde2f
Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents:
1130
diff
changeset
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639 sms->z80->mem_pointers[2] = sms->rom + 0x8000; |
1162
c4ea535cf57e
Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents:
1154
diff
changeset
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640 sms->bank_regs[1] = 0; |
c4ea535cf57e
Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents:
1154
diff
changeset
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641 sms->bank_regs[2] = 0x4000 >> 14; |
c4ea535cf57e
Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents:
1154
diff
changeset
|
642 sms->bank_regs[3] = 0x8000 >> 14; |
1141
7e199bebde2f
Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents:
1130
diff
changeset
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643 } |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
644 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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645 //TODO: Detect region and pick master clock based off of that |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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646 sms->normal_clock = sms->master_clock = 53693175; |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
647 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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648 sms->psg = malloc(sizeof(psg_context)); |
1555
6ce36c3f250b
More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Michael Pavone <pavone@retrodev.com>
parents:
1551
diff
changeset
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649 psg_init(sms->psg, sms->master_clock, 15*16); |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
650 |
1796
51417bb557b6
Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents:
1759
diff
changeset
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651 set_gain_config(sms); |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
652 |
1906
2d462aa78349
Make VDP VSRAM capacity respect model selection
Michael Pavone <pavone@retrodev.com>
parents:
1796
diff
changeset
|
653 sms->vdp = init_vdp_context(0, 0); |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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654 sms->vdp->system = &sms->header; |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
655 |
1595
360d5bab199f
Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents:
1583
diff
changeset
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656 sms->header.info.save_type = SAVE_NONE; |
360d5bab199f
Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents:
1583
diff
changeset
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657 sms->header.info.name = strdup(media->name); |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
658 |
1595
360d5bab199f
Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents:
1583
diff
changeset
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659 setup_io_devices(config, &sms->header.info, &sms->io); |
1583
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
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660 sms->header.has_keyboard = io_has_keyboard(&sms->io); |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
661 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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662 sms->header.set_speed_percent = set_speed_percent; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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663 sms->header.start_context = start_sms; |
1401
b56c8c51ca5d
Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents:
1384
diff
changeset
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664 sms->header.resume_context = resume_sms; |
1384
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
1379
diff
changeset
|
665 sms->header.load_save = load_save; |
1df16f5985f3
Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents:
1379
diff
changeset
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666 sms->header.persist_save = persist_save; |
1433
c886c54d8cf1
Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents:
1401
diff
changeset
|
667 sms->header.load_state = load_state; |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
668 sms->header.free_context = free_sms; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
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669 sms->header.get_open_bus_value = get_open_bus_value; |
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
670 sms->header.request_exit = request_exit; |
1209
5ee6b6345ea9
Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents:
1201
diff
changeset
|
671 sms->header.soft_reset = soft_reset; |
1120
e9369d6f0101
Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents:
1119
diff
changeset
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672 sms->header.inc_debug_mode = inc_debug_mode; |
1583
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
673 sms->header.gamepad_down = gamepad_down; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
674 sms->header.gamepad_up = gamepad_up; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
675 sms->header.mouse_down = mouse_down; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
676 sms->header.mouse_up = mouse_up; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
677 sms->header.mouse_motion_absolute = mouse_motion_absolute; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
678 sms->header.mouse_motion_relative = mouse_motion_relative; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
679 sms->header.keyboard_down = keyboard_down; |
430dd12e4010
Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents:
1555
diff
changeset
|
680 sms->header.keyboard_up = keyboard_up; |
1595
360d5bab199f
Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents:
1583
diff
changeset
|
681 sms->header.config_updated = config_updated; |
1690
319d90025d50
Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents:
1688
diff
changeset
|
682 sms->header.serialize = serialize; |
319d90025d50
Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents:
1688
diff
changeset
|
683 sms->header.deserialize = deserialize; |
1377
e587f16e7d3d
Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents:
1371
diff
changeset
|
684 sms->header.type = SYSTEM_SMS; |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
685 |
1117
928a65750345
Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
686 return sms; |
2134
9caebcfeac72
Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents:
1980
diff
changeset
|
687 } |