Chapter 4 VGA BIOS
112
VGA BIOS INT 10h Inquiry Functions
, Continued
Function 12h Subfunction 9Ah Inquire User Options
This function returns the current status of the user options.
Input:
AH = 12h
BL = 9Ah
Output:
AX = Contains the following options:
Bit 15
Reserved
Bit 14
Vertical monitor type 640x480 frequency
(VGA refresh)
Bits 13-11
Reserved
Bit 10 0
Force 16-bit operation
1
Force 8-bit operation
Bits 9-7
Reserved
Bits 6-5
Vertical monitor type maximum
resolution
Bits 4-2
Monitor Type (Horizontal)
Bits 1-0
Reserved
BX = Reserved
CX = Contains the following options
Bits 15-13
Vertical monitor type 1024x768
frequency
Bits 12-11
Vertical monitor type 800x600 frequency
Bits 10-6
Reserved
Bits 5-4
Vertical monitor type 1280x1024
frequency
Bits 3-0
Reserved
DX = Reserved
Содержание Super Voyager LPX
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Страница 48: ...Chapter 2 Installation 42 Step 5 Install the Motherboard Continued...
Страница 67: ...Super Voyager LPX ISA Motherboard User s Guide...
Страница 172: ...Chapter 6 AMIBIOS Setup 166...
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Страница 178: ...Chapter 6 AMIBIOS Setup 172...
Страница 180: ...Chapter 6 AMIBIOS Setup 174...
Страница 190: ...Appendix A Upgrading Cache Memory 184...
Страница 200: ...Index 194...