save key config
[fceu.git] / input / ftrainer.c
... / ...
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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
24static uint32 FTVal,FTValR;
25static char side;
26
27static uint8 FP_FASTAPASS(2) FT_Read(int w, uint8 ret)
28{
29 if(w)
30 {
31 ret|=FTValR;
32 }
33 return(ret);
34}
35
36static 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
54static void FP_FASTAPASS(2) FT_Update(void *data, int arg)
55{
56 FTVal=*(uint32 *)data;
57}
58
59static INPUTCFC FamilyTrainer={FT_Read,FT_Write,0,FT_Update,0,0};
60
61INPUTCFC *FCEU_InitFamilyTrainerA(void)
62{
63 side='A';
64 FTVal=FTValR=0;
65 return(&FamilyTrainer);
66}
67
68INPUTCFC *FCEU_InitFamilyTrainerB(void)
69{
70 side='B';
71 FTVal=FTValR=0;
72 return(&FamilyTrainer);
73}
74