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1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
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4 | * Copyright (C) 2002 Xodnizel |
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5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
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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19 | */ |
20 | |
21 | #include "mapinc.h" |
22 | |
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23 | |
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24 | static DECLFW(Mapper61_write) |
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25 | { |
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26 | // printf("$%04x:$%02x\n",A,V); |
27 | switch(A&0x30) |
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28 | { |
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29 | case 0x00: |
30 | case 0x30: |
31 | ROM_BANK32(A&0xF); |
32 | break; |
33 | case 0x20: |
34 | case 0x10: |
35 | ROM_BANK16(0x8000,((A&0xF)<<1)| (((A&0x20)>>4)) ); |
36 | ROM_BANK16(0xC000,((A&0xF)<<1)| (((A&0x20)>>4)) ); |
37 | break; |
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38 | } |
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39 | #ifdef moo |
40 | if(!(A&0x10)) |
41 | ROM_BANK32(A&0xF); |
42 | else |
43 | { |
44 | ROM_BANK16(0x8000,((A&0xF)<<1)| (((A&0x10)>>4)^1) ); |
45 | ROM_BANK16(0xC000,((A&0xF)<<1)| (((A&0x10)>>4)^1) ); |
46 | } |
47 | #endif |
48 | MIRROR_SET((A&0x80)>>7); |
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49 | } |
50 | |
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51 | void Mapper61_init(void) |
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52 | { |
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53 | SetWriteHandler(0x8000,0xffff,Mapper61_write); |
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54 | } |