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Implemented DSP1 Op02h Vof, modified Vva to coincide with non-zero values of Vof

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zsknight
2001-04-24 10:57:20 +00:00
parent 4bff501be9
commit a703f38480
1 changed files with 18 additions and 1 deletions
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19
zsnes/src/chips/dsp1emu.c
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@@ -435,6 +435,10 @@ double RasterLZ;
double ScreenLX1;
double ScreenLY1;
double ScreenLZ1;
int ReversedLES;
short Op02LESb;
#define VofAngle 0x3880
DSPOp02()
{
@@ -474,7 +478,20 @@ DSPOp02()
// if(Op02LFE==0x2200)Op02VVA=0xFECD;
// else Op02VVA=0xFFB2;
Op02VVA = (short)(Op02LES * tan(Op02AZS*6.2832/65536.0));
ReversedLES=0;
Op02LESb=Op02LES;
if ((Op02LES>=VofAngle+0x4000) && (Op02LES<VofAngle+0x8000)) {
ReversedLES=1;
Op02LESb=VofAngle+0x4000-(Op02LES-(VofAngle+0x4000));
}
Op02VVA = (short)(Op02LESb * tan(Op02AZS*6.2832/65536.0));
if ((Op02LESb>=VofAngle) && (Op02LESb<=VofAngle+0x4000)) {
Op02VOF= (short)(Op02LESb * tan((Op02AZS-VofAngle)*6.2832/65536.0));
Op02VVA-=Op02VOF;
}
if (ReversedLES){
Op02VOF=-Op02VOF;
}
#ifdef DebugDSP1
Log_Message("OP02 FX:%d FY:%d FZ:%d LFE:%d LES:%d",Op02FX,Op02FY,Op02FZ,Op02LFE,Op02LES);