e328100e |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2003 Xodnizel |
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 |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ |
20 | |
21 | #include <string.h> |
22 | #include "share.h" |
23 | |
24 | static uint32 FTVal,FTValR; |
25 | static char side; |
26 | |
27 | static uint8 FP_FASTAPASS(2) FT_Read(int w, uint8 ret) |
28 | { |
29 | if(w) |
30 | { |
31 | ret|=FTValR; |
32 | } |
33 | return(ret); |
34 | } |
35 | |
36 | static void FP_FASTAPASS(1) FT_Write(uint8 V) |
37 | { |
38 | FTValR=0; |
39 | |
40 | //printf("%08x\n",FTVal); |
41 | if(!(V&0x1)) |
42 | FTValR=(FTVal>>8); |
43 | else if(!(V&0x2)) |
44 | FTValR=(FTVal>>4); |
45 | else if(!(V&0x4)) |
46 | FTValR=FTVal; |
47 | |
48 | FTValR=(~FTValR)&0xF; |
49 | if(side=='B') |
50 | FTValR=((FTValR&0x8)>>3) | ((FTValR&0x4)>>1) | ((FTValR&0x2)<<1) | ((FTValR&0x1)<<3); |
51 | FTValR<<=1; |
52 | } |
53 | |
54 | static void FP_FASTAPASS(2) FT_Update(void *data, int arg) |
55 | { |
56 | FTVal=*(uint32 *)data; |
57 | } |
58 | |
59 | static INPUTCFC FamilyTrainer={FT_Read,FT_Write,0,FT_Update,0,0}; |
60 | |
61 | INPUTCFC *FCEU_InitFamilyTrainerA(void) |
62 | { |
63 | side='A'; |
64 | FTVal=FTValR=0; |
65 | return(&FamilyTrainer); |
66 | } |
67 | |
68 | INPUTCFC *FCEU_InitFamilyTrainerB(void) |
69 | { |
70 | side='B'; |
71 | FTVal=FTValR=0; |
72 | return(&FamilyTrainer); |
73 | } |
74 | |