MB86290A Datasheet, PDF (142/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

Sets color parameters for triangle drawing. These parameters are used in the
Gouraud shading mode.
Rs
R value at (Xs, Ys, Zs) of long side
dRdx
R DDA value of horizontal way
dRdy
R DDA value of long side
Gs
G value at (Xs, Ys, Zs) of long side
dGdx
G DDA value of horizontal way
dGdy
G DDA value of long side
Bs
B value at (Xs, Ys, Zs) of long side
dBdx
B DDA value of horizontal way
dBdy
B DDA value of long side
(Z-coordinate register)
Register Address 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
Zs
0080h 0
Int
Frac
dZdx
0084h S
Int
Frac
dZdy
008ch S
Int
Frac
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 Z-coordinate for 3D triangle drawing
Zs
Z-coordinate start position of long side
dZdx
Z DDA value of horizontal way
dZdy
Z DDA value of long side
(Texture coordinate register)
Register Address 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
Ss
00c0h S S S S S S S
Int
Frac
dSdx
00c4h S S S S S S S
Int
Frac
dSdy
00c8h S S S S S S S
Int
Ts
00cch S S S S S S S
Int
Frac
Frac
dTdx
00d0h S S S S S S S
Int
Frac
dTdy
00d4h S S S S S S S
Int
Qs
00d8h 0 0 0 0 0 0 0 Int
Frac
Frac
dQdx
00dch S S S S S S S Int
Frac
dQdy
00e0h S S S S S S S Int
Frac
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
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