1 /* FCE Ultra - NES/Famicom Emulator
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3 * Copyright notice for this file:
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4 * Copyright (C) 2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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23 static uint8 *WRAM=NULL;
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24 static uint32 WRAMSIZE;
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26 char *GetKeyboard(void);
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28 static char *TransformerKeys, oldkeys[256];
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29 static int TransformerCycleCount, TransformerChar = 0;
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31 static void FP_FASTAPASS(1) TransformerIRQHook(int a)
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33 TransformerCycleCount+=a;
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34 if(TransformerCycleCount >= 1000)
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37 TransformerCycleCount -= 1000;
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38 TransformerKeys = GetKeyboard();
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40 for(i=0; i<256; i++) {
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41 if(oldkeys[i] != TransformerKeys[i]) {
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43 TransformerChar = i;
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45 TransformerChar = i | 0x80;
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46 X6502_IRQBegin(FCEU_IQEXT);
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47 memcpy((void *)&oldkeys[0], (void *)TransformerKeys, 256);
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54 static DECLFR(TransformerRead)
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58 case 0: ret = TransformerChar & 15; break;
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59 case 1: ret = (TransformerChar >> 4); break;
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63 X6502_IRQEnd(FCEU_IQEXT);
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67 static void TransformerPower(void)
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69 setprg8r(0x10,0x6000,0);
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71 setprg16(0xC000,~0);
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74 SetReadHandler(0x5000,0x5004,TransformerRead);
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75 SetReadHandler(0x6000,0x7FFF,CartBR);
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76 SetWriteHandler(0x6000,0x7FFF,CartBW);
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77 SetReadHandler(0x8000,0xFFFF,CartBR);
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79 MapIRQHook=TransformerIRQHook;
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82 static void TransformerClose(void)
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89 void Transformer_Init(CartInfo *info)
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91 info->Power=TransformerPower;
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92 info->Close=TransformerClose;
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95 WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
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96 SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
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99 info->SaveGame[0]=WRAM;
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100 info->SaveGameLen[0]=WRAMSIZE;
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102 AddExState(WRAM, WRAMSIZE, 0, "WRAM");
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