SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 133

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

Format of Palette Values: Alignment byte, Red byte, Green byte, Blue byte
The format of the table is as follows:
SPC8104
Function 08h - Set/Get DAC Palette Format
Function 09h - Set/Get Palette Data
Function 0Ah - Return VBE Protected Mode Interface
412-1.0
ES:DI + 00h
ES:DI + 02h
ES:DI + 04h
ES:DI + 06h
ES:DI + ?
Input:
Return:
Input:
Return:
Input:
Return:
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
AX
BL
BH
AX
BH
AX
BL
CX
DX
ES:DI
AX
AX
BL
AX
ES
DI
CX
Word Offset in table of Protected mode code for
Function 5 for Set Window Call
Word Offset in table of Protected mode code for
Function 7 for set Display Start
Word Offset in table of Protected mode code for
Function 9 for set Primary Palette data
Word Offset in table of Ports and Memory Locations
that the application may need I/O privilege for.
(Optional: if unsupported this must be 0000h)
(See Sub-table for format)
Variable remainder of Table including Code
= 4F08h
= 00h
= 01h
=
=
=
= 4F09h
= 00h
= 01h
= 02h
= 03h
= 80h
=
=
=
=
= 4F0Bh
= 00h
=
=
=
=
VBE Set/Get Palette Format
Set DAC Palette Format
Get DAC Palette Format
Desired bits of color per primary
(Set DAC Palette Format only)
VBE Return Status
Current number of bits of color per primary
VBE Load/Unload Palette Data
Set Palette Data
Get Palette Data
Set Secondary Palette Data
Get Secondary Palette Data
Set Palette Data during Vertical Retrace with Blank
Bit on
Number of palette registers to update
First palette register to update
Table of palette values (see below for format)
VBE Return Status
VBE 2.0 Protected Mode Interface
Return protected mode table
Status
Real Mode Segment of Table
Offset of Table
Length of Table including protected mode code
(for copying purposes)
X15-SP-002-03
BIOS Functional Specification
SP2-27