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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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24 static DECLFW(UNLA9746Write)
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26 // FCEU_printf("write raw %04x:%02x\n",A,V);
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29 case 0x8000: EXPREGS[1]=V; EXPREGS[0]=0; break;
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30 case 0x8002: EXPREGS[0]=V; EXPREGS[1]=0; break;
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32 uint8 bits_rev = ((V&0x20)>>5)|((V&0x10)>>3)|((V&0x08)>>1)|((V&0x04)<<1);
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35 case 0x26: setprg8(0x8000, bits_rev); break;
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36 case 0x25: setprg8(0xA000, bits_rev); break;
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37 case 0x24: setprg8(0xC000, bits_rev); break;
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38 case 0x23: setprg8(0xE000, bits_rev); break;
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43 case 0x08: EXPREGS[2] = (V << 4); break;
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44 case 0x09: setchr1(0x0000, EXPREGS[2]|(V >> 1)); break;
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45 case 0x0b: setchr1(0x0400, EXPREGS[2]|(V >> 1)|1); break;
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47 case 0x0e: EXPREGS[2] = (V << 4); break;
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48 case 0x0d: setchr1(0x0800, EXPREGS[2]|(V >> 1)); break;
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49 case 0x0f: setchr1(0x0c00, EXPREGS[2]|(V >> 1)|1); break;
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51 case 0x12: EXPREGS[2] = (V << 4); break;
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52 case 0x11: setchr1(0x1000, EXPREGS[2]|(V >> 1)); break;
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54 case 0x16: EXPREGS[2] = (V << 4); break;
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55 case 0x15: setchr1(0x1400, EXPREGS[2]|(V >> 1)); break;
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57 case 0x1a: EXPREGS[2] = (V << 4); break;
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58 case 0x19: setchr1(0x1800, EXPREGS[2]|(V >> 1)); break;
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60 case 0x1e: EXPREGS[2] = (V << 4); break;
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61 case 0x1d: setchr1(0x1c00, EXPREGS[2]|(V >> 1)); break;
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68 static void UNLA9746Power(void)
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71 SetWriteHandler(0x8000,0xbfff,UNLA9746Write);
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74 void UNLA9746_Init(CartInfo *info)
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76 GenMMC3_Init(info, 128, 256, 0, 0);
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77 info->Power=UNLA9746Power;
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78 AddExState(EXPREGS, 6, 0, "EXPR");
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