MB86296 Datasheet, PDF (287/352 Pages) Fujitsu Component Limited. – PCI Graphics Controller Specification

FUJITSU LIMITED PRELIMINARY AND CONFIDENTIAL
MDR7 (Mode Register for Extension)
Register
address
DrawBaseAddress + 43CH
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
GG
R/W
W
Initial value
0
This register used for “Gray Scale Gouraud Shading”. This register is able to use only in 8 bit / pixel
mode.
Bit 4
GG (Gray scale Gouraud Shading)
Sets gray scale gouraud shading mode
0: Hard mask on ( compatible Orchid)
1: Hard mask off ( extension mode)
Note: This register is used for gray scale gouraud shading. This register is changed by internal
processing. Please don’t set these bits except GG bit.
In case of gray scale gouraud shading drawing, please set this register to the follows.
1. Set this register to 0x00000050 before drawing.
2. Set this register to 0x00000040 after drawing.
MB86296S <Coral-PA>
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Specification Manual Rev0.1