Fujitsu MB86R02 Jade-D Hardware Manual page 588

MB86R02 'Jade-D' Hardware Manual V1.64
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Register Address
Ss 00c0 S S S
H
dSdx 00c4 S S S
H
dSdy 00c8 S S S
H
Ts 00cc S S S
H
dTdx 00d0 S S S
H
dTdy 00d4 S S S
H
Qs 00d8 0 0 0 0 0 0 0 Int
H
dQdx 00dc S S S S S S S Int
H
dQdy 00e0 S S S S S S S Int
H
Address Offset from DrawBaseAddress
S Sign bit or sign extension
0 Not used or 0 extension
Int Integer or integer part of fixed point data
Frac Fraction part of fixed point data
Sets texture coordinates parameters for triangle drawing
Ss S texture coordinates (Xs, Ys, Zs) of long edge corresponding to Ys
dSdx S DDA value of horizontal direction
dSdy S DDA value of long edge direction
Ts T texture coordinates (Xs, Ys, Zs) of long edge corresponding to Ys
dTdx T DDA value of horizontal direction
dTdy T DDA value of long edge direction
Qs Q (Perspective correction value) of texture at (Xs, Ys, Zs) of long edge corresponding to Ys
dQdx Q DDA value of horizontal direction
dQdy Q DDA value of long edge direction
18-230
Int
Int
Int
Int
Int
Int
Frac
Frac
Frac
Frac
Frac
Frac
Frac
Frac
Frac