| 1 | /* FCE Ultra - NES/Famicom Emulator\r |
| 2 | *\r |
| 3 | * Copyright notice for this file:\r |
| 4 | * Copyright (C) 2005-2008 CaH4e3\r |
| 5 | *\r |
| 6 | * This program is free software; you can redistribute it and/or modify\r |
| 7 | * it under the terms of the GNU General Public License as published by\r |
| 8 | * the Free Software Foundation; either version 2 of the License, or\r |
| 9 | * (at your option) any later version.\r |
| 10 | *\r |
| 11 | * This program is distributed in the hope that it will be useful,\r |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of\r |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r |
| 14 | * GNU General Public License for more details.\r |
| 15 | *\r |
| 16 | * You should have received a copy of the GNU General Public License\r |
| 17 | * along with this program; if not, write to the Free Software\r |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\r |
| 19 | *\r |
| 20 | * CAI Shogakko no Sansu\r |
| 21 | */\r |
| 22 | \r |
| 23 | #include "mapinc.h"\r |
| 24 | \r |
| 25 | static uint8 QTAINTRAM[2048];\r |
| 26 | static writefunc old2007wrap;\r |
| 27 | \r |
| 28 | static uint16 CHRSIZE = 8192;\r |
| 29 | static uint16 WRAMSIZE = 8192 + 4096;\r |
| 30 | static uint8 *CHRRAM=NULL;\r |
| 31 | static uint8 *WRAM = NULL;\r |
| 32 | \r |
| 33 | static uint8 IRQa, K4IRQ;\r |
| 34 | static uint32 IRQLatch, IRQCount;\r |
| 35 | \r |
| 36 | static uint8 regs[16];\r |
| 37 | //static uint8 test[8];\r |
| 38 | static SFORMAT StateRegs[]=\r |
| 39 | {\r |
| 40 | {&IRQCount, 1, "IRQC"},\r |
| 41 | {&IRQLatch, 1, "IRQL"},\r |
| 42 | {&IRQa, 1, "IRQA"},\r |
| 43 | {&K4IRQ, 1, "K4IRQ"},\r |
| 44 | {regs, 16, "REGS"},\r |
| 45 | {0}\r |
| 46 | };\r |
| 47 | \r |
| 48 | static void chrSync(void)\r |
| 49 | {\r |
| 50 | setchr4r(0x10,0x0000,regs[5]&1);\r |
| 51 | setchr4r(0x10,0x1000,0);\r |
| 52 | }\r |
| 53 | \r |
| 54 | static void Sync(void)\r |
| 55 | {\r |
| 56 | chrSync();\r |
| 57 | // if(regs[0xA]&0x10)\r |
| 58 | // {\r |
| 59 | /* setchr1r(0x10,0x0000,(((regs[5]&1))<<2)+0);\r |
| 60 | setchr1r(0x10,0x0400,(((regs[5]&1))<<2)+1);\r |
| 61 | setchr1r(0x10,0x0800,(((regs[5]&1))<<2)+2);\r |
| 62 | setchr1r(0x10,0x0c00,(((regs[5]&1))<<2)+3);\r |
| 63 | setchr1r(0x10,0x1000,0);\r |
| 64 | setchr1r(0x10,0x1400,1);\r |
| 65 | setchr1r(0x10,0x1800,2);\r |
| 66 | setchr1r(0x10,0x1c00,3);*/\r |
| 67 | /* setchr1r(0x10,0x0000,(((regs[5]&1))<<2)+0);\r |
| 68 | setchr1r(0x10,0x0400,(((regs[5]&1))<<2)+1);\r |
| 69 | setchr1r(0x10,0x0800,(((regs[5]&1))<<2)+2);\r |
| 70 | setchr1r(0x10,0x0c00,(((regs[5]&1))<<2)+3);\r |
| 71 | setchr1r(0x10,0x1000,(((regs[5]&1)^1)<<2)+4);\r |
| 72 | setchr1r(0x10,0x1400,(((regs[5]&1)^1)<<2)+5);\r |
| 73 | setchr1r(0x10,0x1800,(((regs[5]&1)^1)<<2)+6);\r |
| 74 | setchr1r(0x10,0x1c00,(((regs[5]&1)^1)<<2)+7);\r |
| 75 | */\r |
| 76 | // }\r |
| 77 | // else\r |
| 78 | // {\r |
| 79 | /*\r |
| 80 | setchr1r(0x10,0x0000,(((regs[5]&1)^1)<<2)+0);\r |
| 81 | setchr1r(0x10,0x0400,(((regs[5]&1)^1)<<2)+1);\r |
| 82 | setchr1r(0x10,0x0800,(((regs[5]&1)^1)<<2)+2);\r |
| 83 | setchr1r(0x10,0x0c00,(((regs[5]&1)^1)<<2)+3);\r |
| 84 | setchr1r(0x10,0x1000,(((regs[5]&1))<<2)+4);\r |
| 85 | setchr1r(0x10,0x1400,(((regs[5]&1))<<2)+5);\r |
| 86 | setchr1r(0x10,0x1800,(((regs[5]&1))<<2)+6);\r |
| 87 | setchr1r(0x10,0x1c00,(((regs[5]&1))<<2)+7);\r |
| 88 | // }\r |
| 89 | //*/\r |
| 90 | /* setchr1r(1,0x0000,test[0]);\r |
| 91 | setchr1r(1,0x0400,test[1]);\r |
| 92 | setchr1r(1,0x0800,test[2]);\r |
| 93 | setchr1r(1,0x0c00,test[3]);\r |
| 94 | setchr1r(1,0x1000,test[4]);\r |
| 95 | setchr1r(1,0x1400,test[5]);\r |
| 96 | setchr1r(1,0x1800,test[6]);\r |
| 97 | setchr1r(1,0x1c00,test[7]);\r |
| 98 | */\r |
| 99 | setprg4r(0x10,0x6000,regs[0]&1);\r |
| 100 | if(regs[2]>=0x40)\r |
| 101 | setprg8r(1,0x8000,(regs[2]-0x40));\r |
| 102 | else\r |
| 103 | setprg8r(0,0x8000,(regs[2]&0x3F));\r |
| 104 | if(regs[3]>=0x40)\r |
| 105 | setprg8r(1,0xA000,(regs[3]-0x40));\r |
| 106 | else\r |
| 107 | setprg8r(0,0xA000,(regs[3]&0x3F));\r |
| 108 | if(regs[4]>=0x40)\r |
| 109 | setprg8r(1,0xC000,(regs[4]-0x40));\r |
| 110 | else\r |
| 111 | setprg8r(0,0xC000,(regs[4]&0x3F));\r |
| 112 | \r |
| 113 | setprg8r(1,0xE000,~0);\r |
| 114 | setmirror(MI_V);\r |
| 115 | }\r |
| 116 | \r |
| 117 | /*static DECLFW(TestWrite)\r |
| 118 | {\r |
| 119 | test[A&7] = V;\r |
| 120 | Sync();\r |
| 121 | }*/\r |
| 122 | \r |
| 123 | static DECLFW(M190Write)\r |
| 124 | {\r |
| 125 | // FCEU_printf("write %04x:%04x %d, %d\n",A,V,scanline,timestamp);\r |
| 126 | regs[(A&0x0F00)>>8]=V;\r |
| 127 | switch(A)\r |
| 128 | { \r |
| 129 | case 0xd600:IRQLatch&=0xFF00;IRQLatch|=V;break;\r |
| 130 | case 0xd700:IRQLatch&=0x00FF;IRQLatch|=V<<8;break;\r |
| 131 | case 0xd900:IRQCount=IRQLatch;IRQa=V&2;K4IRQ=V&1;X6502_IRQEnd(FCEU_IQEXT);break;\r |
| 132 | case 0xd800:IRQa=K4IRQ;X6502_IRQEnd(FCEU_IQEXT);break;\r |
| 133 | }\r |
| 134 | Sync();\r |
| 135 | }\r |
| 136 | \r |
| 137 | static DECLFR(M190Read)\r |
| 138 | {\r |
| 139 | // FCEU_printf("read %04x:%04x %d, %d\n",A,regs[(A&0x0F00)>>8],scanline,timestamp);\r |
| 140 | return regs[(A&0x0F00)>>8]+regs[0x0B];\r |
| 141 | }\r |
| 142 | static void VRC5IRQ(int a)\r |
| 143 | {\r |
| 144 | if(IRQa)\r |
| 145 | {\r |
| 146 | IRQCount+=a;\r |
| 147 | if(IRQCount&0x10000)\r |
| 148 | {\r |
| 149 | X6502_IRQBegin(FCEU_IQEXT);\r |
| 150 | // IRQCount=IRQLatch;\r |
| 151 | }\r |
| 152 | }\r |
| 153 | }\r |
| 154 | \r |
| 155 | static void Mapper190_PPU(uint32 A)\r |
| 156 | {\r |
| 157 | if(A>=0x2000)\r |
| 158 | {\r |
| 159 | setchr4r(0x10,0x0000,QTAINTRAM[A&0x1FFF]&1);\r |
| 160 | setchr4r(0x10,0x1000,QTAINTRAM[A&0x1FFF]&1);\r |
| 161 | }\r |
| 162 | // else\r |
| 163 | // chrSync();\r |
| 164 | }\r |
| 165 | \r |
| 166 | static DECLFW(M1902007Wrap)\r |
| 167 | {\r |
| 168 | if(A>=0x2000)\r |
| 169 | {\r |
| 170 | if(regs[0xA]&1)\r |
| 171 | QTAINTRAM[A&0x1FFF]=V;\r |
| 172 | else\r |
| 173 | old2007wrap(A,V);\r |
| 174 | }\r |
| 175 | }\r |
| 176 | \r |
| 177 | \r |
| 178 | static void M190Power(void)\r |
| 179 | {\r |
| 180 | /* test[0]=0;\r |
| 181 | test[1]=1;\r |
| 182 | test[2]=2;\r |
| 183 | test[3]=3;\r |
| 184 | test[4]=4;\r |
| 185 | test[5]=5;\r |
| 186 | test[6]=6;\r |
| 187 | test[7]=7;\r |
| 188 | */ \r |
| 189 | setprg4r(0x10,0x7000,2);\r |
| 190 | \r |
| 191 | old2007wrap=GetWriteHandler(0x2007);\r |
| 192 | SetWriteHandler(0x2007,0x2007,M1902007Wrap);\r |
| 193 | \r |
| 194 | SetReadHandler(0x6000,0xFFFF,CartBR);\r |
| 195 | // SetWriteHandler(0x5000,0x5007,TestWrite);\r |
| 196 | SetWriteHandler(0x6000,0x7FFF,CartBW);\r |
| 197 | SetWriteHandler(0x8000,0xFFFF,M190Write);\r |
| 198 | SetReadHandler(0xDC00,0xDC00,M190Read);\r |
| 199 | SetReadHandler(0xDD00,0xDD00,M190Read);\r |
| 200 | Sync();\r |
| 201 | }\r |
| 202 | \r |
| 203 | static void M190Close(void)\r |
| 204 | {\r |
| 205 | if(CHRRAM)\r |
| 206 | FCEU_gfree(CHRRAM);\r |
| 207 | CHRRAM=NULL;\r |
| 208 | if(WRAM)\r |
| 209 | FCEU_gfree(WRAM);\r |
| 210 | WRAM=NULL;\r |
| 211 | }\r |
| 212 | \r |
| 213 | static void StateRestore(int version)\r |
| 214 | {\r |
| 215 | Sync();\r |
| 216 | }\r |
| 217 | \r |
| 218 | void Mapper190_Init(CartInfo *info)\r |
| 219 | {\r |
| 220 | info->Power=M190Power;\r |
| 221 | info->Close=M190Close;\r |
| 222 | GameStateRestore=StateRestore;\r |
| 223 | \r |
| 224 | MapIRQHook=VRC5IRQ;\r |
| 225 | //PPU_hook=Mapper190_PPU;\r |
| 226 | \r |
| 227 | CHRRAM=(uint8*)FCEU_gmalloc(CHRSIZE);\r |
| 228 | SetupCartCHRMapping(0x10,CHRRAM,CHRSIZE,1);\r |
| 229 | AddExState(CHRRAM, CHRSIZE, 0, "CHRRAM");\r |
| 230 | \r |
| 231 | WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r |
| 232 | SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r |
| 233 | AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r |
| 234 | \r |
| 235 | if(info->battery)\r |
| 236 | {\r |
| 237 | info->SaveGame[0] = WRAM;\r |
| 238 | info->SaveGameLen[0] = WRAMSIZE - 4096;\r |
| 239 | }\r |
| 240 | \r |
| 241 | AddExState(&StateRegs, ~0, 0, 0);\r |
| 242 | }\r |