/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
- * Copyright (C) 2002 Ben Parnell
+ * Copyright (C) 2002 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
*/
#include "mapinc.h"
+
static void AYSound(int Count);
+//static void AYSoundHQ(void);
static void DoAYSQ(int x);
-static void DoAYNoise(void);
+//static void DoAYSQHQ(int x);
#define sunselect mapbyte1[0]
#define sungah mapbyte1[1]
-#define sunindex mapbyte1[2]
-
-static uint16 znreg;
-static int32 inc;
+static uint8 sunindex;
-DECLFW(SUN5BWRAM)
+static DECLFW(SUN5BWRAM)
{
if((sungah&0xC0)==0xC0)
(WRAM-0x6000)[A]=V;
}
-DECLFR(SUN5AWRAM)
+static DECLFR(SUN5AWRAM)
{
if((sungah&0xC0)==0x40)
return X.DB;
return CartBR(A);
}
-DECLFW(Mapper69_SWL)
+static DECLFW(Mapper69_SWL)
{
sunindex=V%14;
}
-DECLFW(Mapper69_SWH)
+
+static DECLFW(Mapper69_SWH)
{
+ int x;
GameExpSound.Fill=AYSound;
+ GameExpSound.HiFill=0;//AYSoundHQ;
+ if(FSettings.SndRate);
switch(sunindex)
{
case 0:
case 1:
- case 8:DoAYSQ(0);break;
+ case 8:/*if(FSettings.soundq>=1) DoAYSQHQ(0); else*/ DoAYSQ(0);break;
case 2:
case 3:
- case 9:DoAYSQ(1);break;
+ case 9:/*if(FSettings.soundq>=1) DoAYSQHQ(1); else*/ DoAYSQ(1);break;
case 4:
case 5:
- case 10:DoAYSQ(2);break;
- case 6:DoAYNoise();znreg=0xFFFF;break;
- case 7:DoAYNoise();
- DoAYSQ(0);
- DoAYSQ(1);
- DoAYSQ(2);break;
+ case 10:/*if(FSettings.soundq>=1) DoAYSQHQ(2); else*/ DoAYSQ(2);break;
+ case 7:
+ for(x=0;x<2;x++)
+ /*if(FSettings.soundq>=1) DoAYSQHQ(x); else*/ DoAYSQ(x);
+ break;
}
MapperExRAM[sunindex]=V;
}
-DECLFW(Mapper69_write)
+static DECLFW(Mapper69_write)
{
switch(A&0xE000)
{
}
else
setprg8(0x6000,V);
- X6502_Rebase();
break;
- case 9:ROM_BANK8(0x8000,V);
- X6502_Rebase();break;
- case 0xa:ROM_BANK8(0xa000,V);
- X6502_Rebase();break;
- case 0xb:ROM_BANK8(0xc000,V);
- X6502_Rebase();break;
+ case 9:ROM_BANK8(0x8000,V);break;
+ case 0xa:ROM_BANK8(0xa000,V);break;
+ case 0xb:ROM_BANK8(0xc000,V);break;
case 0xc:
switch(V&3)
{
case 3:onemir(1);break;
}
break;
- case 0xd:IRQa=V;break;
- case 0xe:IRQCount&=0xFF00;IRQCount|=V;break;
- case 0xf:IRQCount&=0x00FF;IRQCount|=V<<8;break;
+ case 0xd:IRQa=V;X6502_IRQEnd(FCEU_IQEXT);break;
+ case 0xe:IRQCount&=0xFF00;IRQCount|=V;X6502_IRQEnd(FCEU_IQEXT);break;
+ case 0xf:IRQCount&=0x00FF;IRQCount|=V<<8;X6502_IRQEnd(FCEU_IQEXT);break;
}
break;
}
}
-static int32 vcount[4];
-static int CAYBC[4]={0,0,0,0};
+static int32 vcount[3];
+static int32 dcount[3];
+static int CAYBC[3];
+
static void DoAYSQ(int x)
{
- int V;
- uint32 freq;
- unsigned char amp;
+ int32 freq=((MapperExRAM[x<<1]|((MapperExRAM[(x<<1)+1]&15)<<8))+1)<<(4+17);
+ int32 amp=(MapperExRAM[0x8+x]&15)<<2;
int32 start,end;
+ int V;
+
+ amp+=amp>>1;
start=CAYBC[x];
end=(SOUNDTS<<16)/soundtsinc;
if(end<=start) return;
CAYBC[x]=end;
- if(!(MapperExRAM[0x7]&(1<<x)))
+ if(amp)
+ if(!(MapperExRAM[0x7]&(1<<x)))
+ for(V=start;V<end;V++)
{
- long vcoo;
- freq=(MapperExRAM[x<<1]|((MapperExRAM[(x<<1)+1]&15)<<8))+1;
- inc=(long double)((unsigned long)((FSettings.SndRate OVERSAMPLE)<<12))/
- ((long double)PSG_base/freq);
- amp=MapperExRAM[0x8+x]&15;
- amp<<=3;
- vcoo=vcount[x];
- if(amp)
- for(V=start;V<end;V++)
- {
- if(vcoo<(inc>>1))
- Wave[V>>4]+=amp;
- vcoo+=0x1000;
- if(vcoo>=inc) vcoo-=inc;
- }
- vcount[x]=vcoo;
+ if(dcount[x])
+ Wave[V>>4]+=amp;
+ vcount[x]-=nesincsize;
+ while(vcount[x]<=0)
+ {
+ dcount[x]^=1;
+ vcount[x]+=freq;
}
+ }
}
-static void DoAYNoise(void)
-{
- int V;
- uint32 freq;
- unsigned char amp;
- int32 start,end;
-
- start=CAYBC[3];
- end=(SOUNDTS<<16)/soundtsinc;
- if(end<=start) return;
- CAYBC[3]=end;
-
- amp=0;
- for(V=0;V<3;V++)
- {
- if(!(MapperExRAM[0x7]&(8<<V)))
- {
- //if(MapperExRAM[0x8+V]&0x10) amp+=MapperExRAM[0x20]&15;
- //else
- amp+=MapperExRAM[0x8+V]&15;
- }
- }
- amp<<=3;
-
- if(amp)
- {
- freq=PSG_base/(MapperExRAM[0x6]+1);
- if(freq>44100)
- inc=((freq<<11)/(FSettings.SndRate OVERSAMPLE))<<4;
- else
- inc=(freq<<15)/(FSettings.SndRate OVERSAMPLE);
- for(V=start;V<end;V++)
- {
- static uint32 mixer;
-
- if(vcount[3]>=32768)
- {
- unsigned char feedback;
- mixer=0;
- if(znreg&1) mixer+=amp;
- feedback=((znreg>>13)&1)^((znreg>>14)&1);
- znreg=(znreg<<1)+(feedback);
- vcount[3]-=32768;
- }
- Wave[V>>4]+=mixer;
- vcount[3]+=inc;
- }
- }
+#if 0
+static void DoAYSQHQ(int x)
+{
+ int32 V;
+ int32 freq=((MapperExRAM[x<<1]|((MapperExRAM[(x<<1)+1]&15)<<8))+1)<<4;
+ int32 amp=(MapperExRAM[0x8+x]&15)<<6;
+ amp+=amp>>1;
+ if(!(MapperExRAM[0x7]&(1<<x)))
+ {
+ for(V=CAYBC[x];V<SOUNDTS;V++)
+ {
+ if(dcount[x])
+ WaveHi[V]+=amp;
+ vcount[x]--;
+ if(vcount[x]<=0)
+ {
+ dcount[x]^=1;
+ vcount[x]=freq;
+ }
+ }
+ }
+ CAYBC[x]=SOUNDTS;
}
+#endif
+
static void AYSound(int Count)
{
int x;
DoAYSQ(0);
DoAYSQ(1);
DoAYSQ(2);
- DoAYNoise();
- for(x=0;x<4;x++)
+ for(x=0;x<3;x++)
CAYBC[x]=Count;
}
+#if 0
+static void AYSoundHQ(void)
+{
+ DoAYSQHQ(0);
+ DoAYSQHQ(1);
+ DoAYSQHQ(2);
+}
+#endif
+
+static void AYHiSync(int32 ts)
+{
+ int x;
+
+ for(x=0;x<3;x++)
+ CAYBC[x]=ts;
+}
+
static void FP_FASTAPASS(1) SunIRQHook(int a)
{
if(IRQa)
{
IRQCount-=a;
if(IRQCount<=0)
- {TriggerIRQ();IRQa=0;IRQCount=0xFFFF;}
+ {X6502_IRQBegin(FCEU_IQEXT);IRQa=0;IRQCount=0xFFFF;}
}
}
void Mapper69_StateRestore(int version)
{
- if(version>=19)
+ if(mapbyte1[1]&0x40)
{
- if(mapbyte1[1]&0x40)
- {
- if(mapbyte1[1]&0x80) // Select WRAM
- setprg8r(0x10,0x6000,0);
- }
- else
- setprg8(0x6000,mapbyte1[1]);
+ if(mapbyte1[1]&0x80) // Select WRAM
+ setprg8r(0x10,0x6000,0);
}
else
- mapbyte1[1]=0xC0;
+ setprg8(0x6000,mapbyte1[1]);
}
-static void M69SC(void)
+void Mapper69_ESI(void)
{
- if(FSettings.SndRate)
- Mapper69_ESI();
- else
- SetWriteHandler(0xc000,0xffff,(writefunc)0);
+ GameExpSound.RChange=Mapper69_ESI;
+ GameExpSound.HiSync=AYHiSync;
+ memset(dcount,0,sizeof(dcount));
+ memset(vcount,0,sizeof(vcount));
+ memset(CAYBC,0,sizeof(CAYBC));
}
-void Mapper69_ESI(void)
+void NSFAY_Init(void)
{
- GameExpSound.RChange=M69SC;
- if(FSettings.SndRate)
- {
- SetWriteHandler(0xc000,0xdfff,Mapper69_SWL);
- SetWriteHandler(0xe000,0xffff,Mapper69_SWH);
- }
+ sunindex=0;
+ SetWriteHandler(0xc000,0xdfff,Mapper69_SWL);
+ SetWriteHandler(0xe000,0xffff,Mapper69_SWH);
+ Mapper69_ESI();
}
void Mapper69_init(void)
{
+ sunindex=0;
+
SetupCartPRGMapping(0x10,WRAM,8192,1);
SetWriteHandler(0x8000,0xbfff,Mapper69_write);
+ SetWriteHandler(0xc000,0xdfff,Mapper69_SWL);
+ SetWriteHandler(0xe000,0xffff,Mapper69_SWH);
SetWriteHandler(0x6000,0x7fff,SUN5BWRAM);
SetReadHandler(0x6000,0x7fff,SUN5AWRAM);
Mapper69_ESI();
MapIRQHook=SunIRQHook;
MapStateRestore=Mapper69_StateRestore;
- znreg=0;
}
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