139 lines
3.4 KiB
C
139 lines
3.4 KiB
C
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2002 Xodnizel
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <string.h>
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#include "share.h"
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#include "../vsuni.h"
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static uint8 joy_readbit[2];
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static uint8 joy[4] = { 0, 0, 0, 0 };
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static int FSDisable = 0; /* Set to 1 if NES-style four-player adapter is disabled. */
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void FCEUI_DisableFourScore(int s) {
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FSDisable = s;
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}
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extern uint8 LastStrobe;
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SFORMAT FCEUCTRL_STATEINFO[] = {
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{ joy_readbit, 2, "JYRB" },
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{ joy, 4, "JOYS" },
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{ &LastStrobe, 1, "LSTS" },
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{ 0 }
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};
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/* This function is a quick hack to get the NSF player to use emulated gamepad
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input.
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*/
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uint8 FCEU_GetJoyJoy(void) {
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return(joy[0] | joy[1] | joy[2] | joy[3]);
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}
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static void FP_FASTAPASS(1) StrobeGP(int w) {
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joy_readbit[w] = 0;
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}
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static uint8 FP_FASTAPASS(1) ReadGPVS(int w) {
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uint8 ret = 0;
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if (joy_readbit[w] >= 8)
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ret = 1;
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else {
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ret = ((joy[w] >> (joy_readbit[w])) & 1);
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#ifdef FCEUDEF_DEBUGGER
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if (!fceuindbg)
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#endif
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joy_readbit[w]++;
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}
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return ret;
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}
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static uint8 FP_FASTAPASS(1) ReadGP(int w) {
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uint8 ret;
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if (joy_readbit[w] >= 8)
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ret = ((joy[2 + w] >> (joy_readbit[w] & 7)) & 1);
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else
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ret = ((joy[w] >> (joy_readbit[w])) & 1);
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if (joy_readbit[w] >= 16) ret = 0;
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if (FSDisable) {
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if (joy_readbit[w] >= 8)
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ret |= 1;
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} else {
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if (joy_readbit[w] == 19 - w)
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ret |= 1;
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}
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#ifdef FCEUDEF_DEBUGGER
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if (!fceuindbg)
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#endif
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joy_readbit[w]++;
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return ret;
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}
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static void FP_FASTAPASS(3) UpdateGP(int w, void *data, int arg) {
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uint32 *ptr = (uint32*)data;
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if (!w) {
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joy[0] = *(uint32*)ptr;
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joy[2] = *(uint32*)ptr >> 16;
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} else {
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joy[1] = *(uint32*)ptr >> 8;
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joy[3] = *(uint32*)ptr >> 24;
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}
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#ifdef NETWORK
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if (FCEUnetplay) NetplayUpdate(joy);
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#endif
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FCEUMOV_AddJoy(joy);
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#ifdef __LIBRETRO__
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#else
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if (GameInfo->type == GIT_VSUNI) /* moved to libretro.c */
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FCEU_VSUniSwap(&joy[0], &joy[1]);
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#endif
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}
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static INPUTC GPC = { ReadGP, 0, StrobeGP, UpdateGP, 0, 0 };
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static INPUTC GPCVS = { ReadGPVS, 0, StrobeGP, UpdateGP, 0, 0 };
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INPUTC *FCEU_InitJoyPad(int w) {
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joy_readbit[w] = 0;
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joy[w] = 0;
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joy[w + 2] = 0;
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if (GameInfo->type == GIT_VSUNI)
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return(&GPCVS);
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else
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return(&GPC);
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}
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static uint8 F4ReadBit[2];
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static void StrobeFami4(void) {
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F4ReadBit[0] = F4ReadBit[1] = 0;
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}
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static uint8 FP_FASTAPASS(2) ReadFami4(int w, uint8 ret) {
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ret &= 1;
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ret |= ((joy[2 + w] >> (F4ReadBit[w])) & 1) << 1;
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if (F4ReadBit[w] >= 8) ret |= 2;
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else F4ReadBit[w]++;
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return(ret);
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}
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static INPUTCFC FAMI4C = { ReadFami4, 0, StrobeFami4, 0, 0, 0 };
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INPUTCFC *FCEU_InitFami4(int w) {
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memset(&F4ReadBit, 0, sizeof(F4ReadBit));
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return(&FAMI4C);
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}
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