mirror of
https://github.com/dborth/fceugx.git
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96 lines
2.0 KiB
C++
96 lines
2.0 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) 2003 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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static uint8 OKValR,LastWR;
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static uint32 OKData;
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static uint32 OKX,OKY,OKB;
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static uint8 OK_Read(int w, uint8 ret)
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{
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if(w)
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{
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ret|=OKValR;
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}
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return(ret);
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}
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static void OK_Write(uint8 V)
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{
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if(!(V&0x1))
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{
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int32 vx,vy;
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//puts("Redo");
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OKValR=OKData=0;
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if(OKB) OKData|=1;
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if(OKY >= 48)
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OKData|=2;
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else if(OKB) OKData|=3;
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vx=OKX*240/256+8;
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vy=OKY*256/240-12;
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if(vy<0) vy=0;
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if(vy>255) vy=255;
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if(vx<0) vx=0;
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if(vx>255) vx=255;
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OKData |= (vx<<10) | (vy<<2);
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}
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else
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{
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if((~LastWR)&V&0x02)
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OKData<<=1;
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if(!(V&0x2)) OKValR=0x4;
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else
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{
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if(OKData&0x40000) OKValR=0;
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else OKValR=0x8;
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}
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}
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LastWR=V;
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}
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static void OK_Update(void *data, int arg)
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{
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//puts("Sync");
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OKX=((uint32*)data)[0];
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OKY=((uint32*)data)[1];
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OKB=((uint32*)data)[2];
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}
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static void DrawOeka(uint8 *buf, int arg)
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{
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if(OKY<44)
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FCEU_DrawCursor(buf, OKX, OKY);
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}
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static INPUTCFC OekaKids={OK_Read,OK_Write,0,OK_Update,0,DrawOeka};
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INPUTCFC *FCEU_InitOekaKids(void)
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{
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OKValR=0;
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return(&OekaKids);
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}
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