SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 122

• Manufacturer Part Number: SPC8104
• Description: VGA LCD CONTROLLER
• Manufacturer: S-MOS Systems

BIOS Functional Specification
SP2-16
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=18h
BL
n/a
AH=10h
AL=19h
BX
n/a
AH=10h
AL=1Ah
BL
BH
n/a
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
Palette Functions
Set PEL Mask (VGA Undocumented)
PEL Mask to write
Palette Functions
Get PEL Mask (VGA Undocumented!)
Returned PEL Mask value
Palette Functions
Get current color page
Returned paging mode
Returned page number
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
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
X15-SP-002-03
(VGA)
(VGA)
412-1.0
SPC8104