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Diffstat (limited to 'plugins/dfsound/registers.c')
-rw-r--r--plugins/dfsound/registers.c113
1 files changed, 70 insertions, 43 deletions
diff --git a/plugins/dfsound/registers.c b/plugins/dfsound/registers.c
index b9c1256..730c753 100644
--- a/plugins/dfsound/registers.c
+++ b/plugins/dfsound/registers.c
@@ -35,10 +35,28 @@ static void ReverbOn(int start,int end,unsigned short val);
// WRITE REGISTERS: called by main emu
////////////////////////////////////////////////////////////////////////
-void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
+static const uint32_t ignore_dupe[8] = {
+ // ch 0-15 c40 c80 cc0
+ 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f,
+ // ch 16-24 d40 control reverb
+ 0x7f7f7f7f, 0x7f7f7f7f, 0xff05ff0f, 0xffffffff
+};
+
+void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,
+ unsigned int cycles)
{
- const unsigned long r=reg&0xfff;
- regArea[(r-0xc00)>>1] = val;
+ int r = reg & 0xfff;
+ int rofs = (r - 0xc00) >> 1;
+ int changed = regArea[rofs] != val;
+ regArea[rofs] = val;
+
+ if (!changed && (ignore_dupe[rofs >> 5] & (1 << (rofs & 0x1f))))
+ return;
+ // zero keyon/keyoff?
+ if (val == 0 && (r & 0xff8) == 0xd88)
+ return;
+
+ do_samples_if_needed(cycles);
if(r>=0x0c00 && r<0x0d80) // some channel info?
{
@@ -56,7 +74,7 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
//------------------------------------------------// pitch
case 4:
SetPitch(ch,val);
- break;
+ goto upd_irq;
//------------------------------------------------// start
case 6:
// taken from regArea later
@@ -93,7 +111,7 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
//------------------------------------------------//
case 14: // loop?
s_chan[ch].pLoop=spuMemC+((val&~1)<<3);
- break;
+ goto upd_irq;
//------------------------------------------------//
}
return;
@@ -113,8 +131,11 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
break;
//-------------------------------------------------//
case H_SPUctrl:
- if(!(spuCtrl & CTRL_IRQ))
+ if (!(spuCtrl & CTRL_IRQ)) {
spuStat&=~STAT_IRQ;
+ if (val & CTRL_IRQ)
+ schedule_next_irq();
+ }
spuCtrl=val;
break;
//-------------------------------------------------//
@@ -137,13 +158,12 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
rvb.CurrAddr+=decode_pos/2;
}
}
- rvb.dirty = 1;
- break;
+ goto rvbd;
//-------------------------------------------------//
case H_SPUirqAddr:
spuIrq = val;
pSpuIrq=spuMemC+(((unsigned long) val<<3)&~0xf);
- break;
+ goto upd_irq;
//-------------------------------------------------//
case H_SPUrvolL:
rvb.VolLeft=val;
@@ -229,42 +249,48 @@ void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)
ReverbOn(16,24,val);
break;
//-------------------------------------------------//
- case H_Reverb+0 : rvb.FB_SRC_A=val*4; break;
- case H_Reverb+2 : rvb.FB_SRC_B=val*4; break;
- case H_Reverb+4 : rvb.IIR_ALPHA=(short)val; break;
- case H_Reverb+6 : rvb.ACC_COEF_A=(short)val; break;
- case H_Reverb+8 : rvb.ACC_COEF_B=(short)val; break;
- case H_Reverb+10 : rvb.ACC_COEF_C=(short)val; break;
- case H_Reverb+12 : rvb.ACC_COEF_D=(short)val; break;
- case H_Reverb+14 : rvb.IIR_COEF=(short)val; break;
- case H_Reverb+16 : rvb.FB_ALPHA=(short)val; break;
- case H_Reverb+18 : rvb.FB_X=(short)val; break;
- case H_Reverb+20 : rvb.IIR_DEST_A0=val*4; break;
- case H_Reverb+22 : rvb.IIR_DEST_A1=val*4; break;
- case H_Reverb+24 : rvb.ACC_SRC_A0=val*4; break;
- case H_Reverb+26 : rvb.ACC_SRC_A1=val*4; break;
- case H_Reverb+28 : rvb.ACC_SRC_B0=val*4; break;
- case H_Reverb+30 : rvb.ACC_SRC_B1=val*4; break;
- case H_Reverb+32 : rvb.IIR_SRC_A0=val*4; break;
- case H_Reverb+34 : rvb.IIR_SRC_A1=val*4; break;
- case H_Reverb+36 : rvb.IIR_DEST_B0=val*4; break;
- case H_Reverb+38 : rvb.IIR_DEST_B1=val*4; break;
- case H_Reverb+40 : rvb.ACC_SRC_C0=val*4; break;
- case H_Reverb+42 : rvb.ACC_SRC_C1=val*4; break;
- case H_Reverb+44 : rvb.ACC_SRC_D0=val*4; break;
- case H_Reverb+46 : rvb.ACC_SRC_D1=val*4; break;
- case H_Reverb+48 : rvb.IIR_SRC_B1=val*4; break;
- case H_Reverb+50 : rvb.IIR_SRC_B0=val*4; break;
- case H_Reverb+52 : rvb.MIX_DEST_A0=val*4; break;
- case H_Reverb+54 : rvb.MIX_DEST_A1=val*4; break;
- case H_Reverb+56 : rvb.MIX_DEST_B0=val*4; break;
- case H_Reverb+58 : rvb.MIX_DEST_B1=val*4; break;
- case H_Reverb+60 : rvb.IN_COEF_L=(short)val; break;
- case H_Reverb+62 : rvb.IN_COEF_R=(short)val; break;
+ case H_Reverb+0 : rvb.FB_SRC_A=val*4; goto rvbd;
+ case H_Reverb+2 : rvb.FB_SRC_B=val*4; goto rvbd;
+ case H_Reverb+4 : rvb.IIR_ALPHA=(short)val; goto rvbd;
+ case H_Reverb+6 : rvb.ACC_COEF_A=(short)val; goto rvbd;
+ case H_Reverb+8 : rvb.ACC_COEF_B=(short)val; goto rvbd;
+ case H_Reverb+10 : rvb.ACC_COEF_C=(short)val; goto rvbd;
+ case H_Reverb+12 : rvb.ACC_COEF_D=(short)val; goto rvbd;
+ case H_Reverb+14 : rvb.IIR_COEF=(short)val; goto rvbd;
+ case H_Reverb+16 : rvb.FB_ALPHA=(short)val; goto rvbd;
+ case H_Reverb+18 : rvb.FB_X=(short)val; goto rvbd;
+ case H_Reverb+20 : rvb.IIR_DEST_A0=val*4; goto rvbd;
+ case H_Reverb+22 : rvb.IIR_DEST_A1=val*4; goto rvbd;
+ case H_Reverb+24 : rvb.ACC_SRC_A0=val*4; goto rvbd;
+ case H_Reverb+26 : rvb.ACC_SRC_A1=val*4; goto rvbd;
+ case H_Reverb+28 : rvb.ACC_SRC_B0=val*4; goto rvbd;
+ case H_Reverb+30 : rvb.ACC_SRC_B1=val*4; goto rvbd;
+ case H_Reverb+32 : rvb.IIR_SRC_A0=val*4; goto rvbd;
+ case H_Reverb+34 : rvb.IIR_SRC_A1=val*4; goto rvbd;
+ case H_Reverb+36 : rvb.IIR_DEST_B0=val*4; goto rvbd;
+ case H_Reverb+38 : rvb.IIR_DEST_B1=val*4; goto rvbd;
+ case H_Reverb+40 : rvb.ACC_SRC_C0=val*4; goto rvbd;
+ case H_Reverb+42 : rvb.ACC_SRC_C1=val*4; goto rvbd;
+ case H_Reverb+44 : rvb.ACC_SRC_D0=val*4; goto rvbd;
+ case H_Reverb+46 : rvb.ACC_SRC_D1=val*4; goto rvbd;
+ case H_Reverb+48 : rvb.IIR_SRC_B1=val*4; goto rvbd;
+ case H_Reverb+50 : rvb.IIR_SRC_B0=val*4; goto rvbd;
+ case H_Reverb+52 : rvb.MIX_DEST_A0=val*4; goto rvbd;
+ case H_Reverb+54 : rvb.MIX_DEST_A1=val*4; goto rvbd;
+ case H_Reverb+56 : rvb.MIX_DEST_B0=val*4; goto rvbd;
+ case H_Reverb+58 : rvb.MIX_DEST_B1=val*4; goto rvbd;
+ case H_Reverb+60 : rvb.IN_COEF_L=(short)val; goto rvbd;
+ case H_Reverb+62 : rvb.IN_COEF_R=(short)val; goto rvbd;
}
+ return;
+
+upd_irq:
+ if (spuCtrl & CTRL_IRQ)
+ schedule_next_irq();
+ return;
- if ((r & ~0x3f) == H_Reverb)
- rvb.dirty = 1; // recalculate on next update
+rvbd:
+ rvb.dirty = 1; // recalculate on next update
}
////////////////////////////////////////////////////////////////////////
@@ -484,6 +510,7 @@ static void SetPitch(int ch,unsigned short val) // SET PITCH
s_chan[ch].iRawPitch=NP;
s_chan[ch].sinc=(NP<<4)|8;
+ s_chan[ch].sinc_inv=0;
if(iUseInterpolation==1) s_chan[ch].SB[32]=1; // -> freq change in simple interpolation mode: set flag
}
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