Files
ci-libretro-fceumm/src/input/hypershot.c

47 lines
1.3 KiB
C

/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2003 Xodnizel
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "share.h"
static uint8 HSVal, HSValR;
static uint8 FP_FASTAPASS(2) HS_Read(int w, uint8 ret) {
if (w) ret |= HSValR;
return(ret);
}
static void HS_Strobe(void) {
HSValR = HSVal << 1;
}
static void FP_FASTAPASS(2) HS_Update(void *data, int arg) {
HSVal = *(uint8*)data;
}
static INPUTCFC HyperShot = { HS_Read, 0, HS_Strobe, HS_Update, 0, 0 };
INPUTCFC *FCEU_InitHS(void) {
HSVal = HSValR = 0;
return(&HyperShot);
}