SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 120

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

BIOS Functional Specification
SP2-14
Function 0Eh - Write TTY Character to Active Page
Function 0Fh - Get Current Video State
Function 10h - Palette Functions
1. VGA palette reads and writes are mapped in hardware to 16 level grey-scale values. Values for Red, Blue, and Green
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
Input:
Return:
will depend on the current hardware gray-scale mode.
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AH=0Eh
AL
BL
n/a
AH=0Fh
AL
AH
BH
AH=10h
AL=00
BL
BH
n/a
AH=10h
AL=01
BH
n/a
AH=10h
AL=02
ES:DX
n/a
AH=10h
AL=03
BL
n/a
AH=10h
AL=07
BL
BH
Write TTY Character to Active Page
Character (CR, LF, BS, and BELL accepted)
Color in graphics mode
Get Current Video State
Current video mode
Number of columns
Current page number
Palette Functions
Set palette register
Palette register
Value to be set
Palette Functions
Set overscan register
Value to be set
Palette Functions
Set all palette registers and overscan
Pointer to 17-byte table
Palette Functions
Toggle intensity/blink bit
1=Blink, 0=Intensity
Palette Functions
Get palette register
Palette register
Palette register value
1
X15-SP-002-03
(VGA)
412-1.0
SPC8104