Table of Contents
Advertisement
MB86R02 'Jade-D' Hardware Manual V1.64
SHO (SHadow Offset)
Register
DrawBaseAddress + 470
address
Bit number
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
Bit field name
R/W
Initial value
This register sets the offset address of the shadow relative to the body primitive at drawing with
shadow.
At body drawing, this offset address is set to "0"; at shadow drawing, the offset address calculated
from each offset value of the X coordinates and of the Y coordinates is set. This register is
hardware controlled.
ABR (Alpha map Base)
Register
DrawBaseAddress + 474
address
Bit number
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
Bit field name
R/W
Initial value
This register sets the base address of the alpha map.
The actual address for VRAM is calculated by adding the segment address of FBR to ABASE.
18-224
H
H
RW
Don't care
SHOFFS
RW
Don't care
ABASE
R0
0
Advertisement
Table of Contents
