a_dinosaur/ZSNES
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Changes in DSP1 Op01

Browse Source
This commit is contained in:
zsknight
2001-04-24 21:33:02 +00:00
parent fc66da28df
commit 86f179c1d2
1 changed files with 21 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
zsnes/src/chips/dsp1emu.c
View File

@@ -480,11 +480,11 @@ DSPOp02()
ReversedLES=0;
Op02LESb=Op02LES;
if ((Op02LES>=VofAngle+0x4000) && (Op02LES<VofAngle+0x8000)) {
if ((Op02LES>=VofAngle+16384.0) && (Op02LES<VofAngle+32768.0)) {
ReversedLES=1;
Op02LESb=VofAngle+0x4000-(Op02LES-(VofAngle+0x4000));
}
Op02VVA = (short)(Op02LESb * tan(Op02AZS*6.2832/65536.0));
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;
@@ -814,9 +814,9 @@ DSPOp01()
{
double zr,yr,xr,sc;
zr = 65536.0/Op01Zr*6.2832;
yr = 65536.0/Op01Yr*6.2832;
xr = 65536.0/Op01Xr*6.2832;
zr = ((double)Op01Zr)*6.2832/65536;
yr = ((double)Op01Yr)*6.2832/65536;
xr = ((double)Op01Xr)*6.2832/65536;
matrixB[0][0]=cos(yr); matrixB[0][1]=0; matrixB[0][2]=-sin(yr);
matrixB[1][0]=0; matrixB[1][1]=1; matrixB[1][2]=0;
@@ -834,7 +834,7 @@ DSPOp01()
MultMatrixB(matrixB,matrixB3,matrixB2);
sc = Op01m/32768;
sc = ((double)Op01m)/32768.0;
matrixB[0][0]*=sc; matrixB[0][1]*=sc; matrixB[0][2]*=sc;
matrixB[1][0]*=sc; matrixB[1][1]*=sc; matrixB[1][2]*=sc;
@@ -902,7 +902,7 @@ short Op0DU;
DSPOp0D()
{
double a,b,c,d,e,f,g,h,i,det,temp;
double a2,b2,c2,d2,e2,f2,g2,h2,i2;
double a2,b2,c2,d2,e2,f2,g2,h2,i2,x,y,z;
a = matrixA[0][0]; b=matrixA[0][1]; c=matrixA[0][2];
d = matrixA[1][0]; e=matrixA[1][1]; f=matrixA[1][2];
g = matrixA[2][0]; h=matrixA[2][1]; i=matrixA[2][2];
@@ -910,14 +910,19 @@ DSPOp0D()
//def
//ghi
det = a*e*i+b*f*g+c*d*h-g*e*c-h*f*a-i*d*b;
if (det==0) {
Op0DF=0; Op0DL=0; Op0DU=0;
return;
}
swap(d,b); swap(g,c); swap(h,f);
b=-b; d=-d; f=-f; h=-h;
a2=(e*i-h*f)/det; b2=(d*i-g*f)/det; c2=(d*h-g*e)/det;
d2=(b*i-h*c)/det; e2=(a*i-g*c)/det; f2=(a*h-g*b)/det;
g2=(b*f-e*c)/det; h2=(a*f-d*c)/det; i2=(a*e-d*b)/det;
Op0DF=(short)((Op0DX*a2+Op0DY*d2+Op0DZ*g2)/4);
Op0DL=(short)((Op0DX*b2+Op0DY*e2+Op0DZ*h2)/4);
Op0DU=(short)((Op0DX*c2+Op0DY*f2+Op0DZ*i2)/4);
x=Op0DX; y=Op0DY; z=Op0DZ;
Op0DF=(short)((x*a2+y*d2+z*g2)/2);
Op0DL=(short)((x*b2+y*e2+z*h2)/2);
Op0DU=(short)((x*c2+y*f2+z*i2)/2);
#ifdef DebugDSP1
Log_Message("OP0D");
#endif
@@ -952,9 +957,12 @@ short Op03Z;
DSPOp03()
{
Op03X=(short)((Op03F*matrixA[0][0]+Op03L*matrixA[1][0]+Op03U*matrixA[2][0]));
Op03Y=(short)((Op03F*matrixA[0][1]+Op03L*matrixA[1][1]+Op03U*matrixA[2][1]));
Op03Z=(short)((Op03F*matrixA[0][2]+Op03L*matrixA[1][2]+Op03U*matrixA[2][2]));
double F,L,U;
F=Op03F; L=Op03L; U=Op03U;
Op03X=(short)((F*matrixA[0][0]+L*matrixA[1][0]+U*matrixA[2][0])*2);
Op03Y=(short)((F*matrixA[0][1]+L*matrixA[1][1]+U*matrixA[2][1])*2);
Op03Z=(short)((F*matrixA[0][2]+L*matrixA[1][2]+U*matrixA[2][2])*2);
#ifdef DebugDSP1
Log_Message("OP03");
#endif