SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 188

• Manufacturer Part Number: SPC8106
• Description: LCD/CRT VGA CONTROLLER
• Manufacturer: S-MOS Systems

BIOS Functional Specification
SP2-18
Overscan Subfunction 01 incorrectly puts the data into the parameter save area offset + 11h to
be consistent with IBM code.
Function 11h - Character Generator Control
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
Input:
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
AH=10h
AL=1Bh
BX
CX
n/a
AL
AH=11h
AL=00 or AL=10h (user alpha load):
BL
BH
CX
DX
ES:BP
n/a
AH=11h
AL=01 or AL=11h (ROM 8x14 set):
BL
n/a
AH=11h
AL=02 or AL=12h (ROM 8x8 set):
BL
n/a
AH=11h
AL=04 or AL=14h (ROM 8x16 set):
BL
n/a
AH=11h
AL=03
BL
n/a
AH=11h
Palette Functions
Convert all DAC registers to gray-scale
Start color register
Number of registers
Character generator function
Block to load
Points
Character count
Character offset
Font table pointer
Character generator function
Block to load
Character generator function
Block to load
Character generator function
Block to load
Character generator function
(set active block):
Value for sequencer register 3
Character generator function
Character generator function (0-30h)
0x - Alpha load (x=0-4)
1x - Alpha load, recalculated (x=0-2, 4)
2x - Graphics load (x=0-4)
30 - Return information
X12-SP-002-03.1
(VGA only)
(VGA)
411-1.0
SPC8106