50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
|
|
*
|
|
* 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 "share.h"
|
|
|
|
static uint32 lcdCompZapperStrobe[2];
|
|
static uint32 lcdCompZapperData[2];
|
|
|
|
static uint8 ReadLCDCompZapper(int w)
|
|
{
|
|
return lcdCompZapperData[w];
|
|
}
|
|
|
|
static void StrobeLCDCompZapper(int w)
|
|
{
|
|
lcdCompZapperStrobe[w] = 0;
|
|
}
|
|
|
|
void UpdateLCDCompZapper(int w, void* data, int arg)
|
|
{
|
|
// In the '(*(uint32*)data)' variable, bit 0 holds the trigger value and bit 1 holds the light sense value.
|
|
// Ultimately this needs to be converted from 0000 00lt to 000t l000 where l is the light bit and t
|
|
// is the trigger bit.
|
|
// l must be inverted because 0: detected; 1: not detected
|
|
lcdCompZapperData[w] = ((((*(uint32*)data) & 1) << 4) |
|
|
(((*(uint32*)data) & 2 ^ 2) << 2));
|
|
}
|
|
|
|
static INPUTC LCDCompZapperCtrl = { ReadLCDCompZapper,0,StrobeLCDCompZapper,UpdateLCDCompZapper,0,0 };
|
|
|
|
INPUTC* FCEU_InitLCDCompZapper(int w)
|
|
{
|
|
lcdCompZapperStrobe[w] = lcdCompZapperData[w] = 0;
|
|
return(&LCDCompZapperCtrl);
|
|
}
|