SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 132

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

BIOS Functional Specification
SP2-26
Function 06h - Set/Get Logical Scan Line Length
Function 07h - Set/Get Display Start
Input:
Return:
Input:
Return:
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
DX
AX
BL
CX
AX
BX
CX
DX
AX
BH
BL
CX
DX
AX
BH
CX
DX
=
= 4F06h
= 00h
= 01h
= 02h
= 03h
=
=
=
=
=
= 4F07h
= 00h
= 00h
= 01h
= 80h
=
=
=
=
=
=
Window number in window granularity units (Get Memory
Window only)
VBE Set/Get Logical Scan Line Length
Set Scan Line Length in Pixels
Get Scan Line Length
Set Scan Line Length in Bytes
Get Maximum Scan Line Length
If BL=00h
If BL=02h
(Ignored for Get Functions)
VBE Return Status
Bytes Per Scan Line
Actual Pixels Per Scan Line (truncated to nearest com-
plete pixel)
Maximum Number of Scan Lines
VBE Set/Get Display Start Control
Reserved and must be 00h
Set Display Start
Get Display Start
Set Display Start during Vertical Retrace
First Displayed Pixel In Scan Line (Set Display Start
only)
First Displayed Scan Line (Set Display Start only)
VBE Return Status
00h Reserved and will be 0 (Get Display Start only)
First Displayed Pixel In Scan Line (Get Display Start
only
First Displayed Scan Line (Get Display Start only)
X15-SP-002-03
Desired Width in Pixels
Desired Width in Bytes
412-1.0
SPC8104