1 /* FCE Ultra - NES/Famicom Emulator
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3 * Copyright notice for this file:
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4 * Copyright (C) 2007 CaH4e3
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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23 static uint8 reg0, reg1, reg2;
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24 static uint8 *WRAM=NULL;
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25 static uint32 WRAMSIZE;
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27 static SFORMAT StateRegs[]=
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35 static void Sync(void)
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38 setprg8(0x8000,0xc);
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39 setprg8(0xe000,0xf);
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42 setprg8(0x6000,reg0);
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43 setprg8(0xa000,0xd);
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44 setprg8(0xc000,0xe);
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48 setprg8r(0x10,0x6000,0);
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49 setprg4(0xa000,(0xd<<1));
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50 setprg2(0xb000,(0xd<<2)+2);
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51 setprg2r(0x10,0xb800,4);
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52 setprg2r(0x10,0xc000,5);
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53 setprg2r(0x10,0xc800,6);
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54 setprg2r(0x10,0xd000,7);
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55 setprg2(0xd800,(0xe<<2)+3);
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60 static DECLFW(M103RamWrite0)
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65 static DECLFW(M103RamWrite1)
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67 WRAM[0x2000+((A-0xB800)&0x1FFF)]=V;
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70 static DECLFW(M103Write0)
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76 static DECLFW(M103Write1)
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82 static DECLFW(M103Write2)
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88 static void M103Power(void)
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90 reg0=reg1=0; reg2=0;
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92 SetReadHandler(0x6000,0x7FFF,CartBR);
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93 SetWriteHandler(0x6000,0x7FFF,M103RamWrite0);
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94 SetReadHandler(0x8000,0xFFFF,CartBR);
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95 SetWriteHandler(0xB800,0xD7FF,M103RamWrite1);
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96 SetWriteHandler(0x8000,0x8FFF,M103Write0);
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97 SetWriteHandler(0xE000,0xEFFF,M103Write1);
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98 SetWriteHandler(0xF000,0xFFFF,M103Write2);
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101 static void M103Close(void)
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108 static void StateRestore(int version)
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113 void Mapper103_Init(CartInfo *info)
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115 info->Power=M103Power;
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116 info->Close=M103Close;
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117 GameStateRestore=StateRestore;
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120 WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
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121 SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
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122 AddExState(WRAM, WRAMSIZE, 0, "WRAM");
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124 AddExState(&StateRegs, ~0, 0, 0);
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