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- ----------104F00-----------------------------
- INT 10 - VESA SuperVGA BIOS - GET SuperVGA INFORMATION
- AX = 4F00h
- ES:DI -> 256-byte buffer for SuperVGA information (see below)
- Return: AL = 4Fh function supported
- AH = status
- 00h successful
- 01h failed
- SeeAlso: AX=4F01h
-
- Format of SuperVGA information:
- Offset Size Description
- 00h 4 BYTEs signature ('VESA')
- 04h WORD VESA version number
- 06h DWORD pointer to OEM name
- 0Ah 4 BYTEs capabilities
- 0Eh DWORD pointer to list of supported VESA and OEM video modes
- 12h 238 BYTEs reserved
- ----------104F01-----------------------------
- INT 10 - VESA SuperVGA BIOS - GET SuperVGA MODE INFORMATION
- AX = 4F01h
- CX = SuperVGA video mode
- ES:DI -> 256-byte buffer mode information (see below)
- Return: AL = 4Fh function supported
- AH = status
- 00h successful
- 01h failed
- SeeAlso: AX=4F00h,AX=4F02h
-
- Format of mode information:
- Offset Size Description
- 00h WORD mode attributes
- bit 0: mode supported
- bit 1: optional information available
- bit 2: BIOS output supported
- bit 3: set if color, clear if monochrome
- bit 4: set if graphics mode, clear if text mode
- 02h BYTE window A attributes
- bit 0: exists
- bit 1: readable
- bit 2: writable
- bits 3-7 reserved
- 03h BYTE window B attributes (as for window A)
- 04h WORD window granularity in K
- 06h WORD window size in K
- 08h WORD start segment of window A
- 0Ah WORD start segment of window B
- 0Ch DWORD -> FAR window positioning function (equivalent to AX=4F05h)
- 10h WORD bytes per scan line
- ---remainder is optional for VESA modes, needed for OEM modes---
- 12h WORD width in pixels
- 14h WORD height in pixels
- 16h BYTE width of character cell in pixels
- 17h BYTE height if character cell in pixels
- 18h BYTE number of memory planes
- 19h BYTE number of bits per pixel
- 1Ah BYTE number of banks
- 1Bh BYTE memory model type
- 1Ch BYTE size of bank in K
- ----------104F02-----------------------------
- INT 10 - VESA SuperVGA BIOS - SET SuperVGA VIDEO MODE
- AX = 4F02h
- BX = mode
- bit 15 set means don't clear video memory
- Return: AL = 4Fh function supported
- AH = status
- 00h successful
- 01h failed
- SeeAlso: AX=4F01h,AX=4F03h
-
- Values for VESA video mode:
- 00h-FFh OEM video modes (see AH=00h)
- 100h 640x400x256
- 101h 640x480x256
- 102h 800x600x16
- 103h 800x600x256
- 104h 1024x768x16
- 105h 1024x768x256
- 106h 1280x1024x16
- 107h 1280x1024x256
- 108h 80x60 text
- 109h 132x25 text
- 10Ah 132x43 text
- 10Bh 132x50 text
- 10Ch 132x60 text
- ----------104F03-----------------------------
- INT 10 - VESA SuperVGA BIOS - GET CURRENT VIDEO MODE
- AX = 4F03h
- Return: AL = 4Fh function supported
- AH = status
- 00h successful
- 01h failed
- BX = video mode (see AX=4F02h)
- SeeAlso: AX=4F02h
- ----------104F04-----------------------------
- INT 10 - VESA SuperVGA BIOS - SAVE/RESTORE SuperVGA VIDEO STATE
- AX = 4F04h
- DL = subfunction
- 00h get state buffer size
- Return: BX = number of 64-byte blocks needed
- 01h save video states
- ES:BX -> buffer
- 02h restore video states
- ES:BX -> buffer
- CX = flags for states to save/restore
- bit 0: video hardware state
- bit 1: video BIOS data state
- bit 2: video DAC state
- bit 3: SuperVGA state
- Return: AL = 4Fh function supported
- AH = status
- 00h successful
- 01h failed
- ----------104F05-----------------------------
- INT 10 - VESA SuperVGA BIOS - CPU VIDEO MEMORY CONTROL
- AX = 4F05h
- BH = subfunction
- 00h select video memory window
- DX = window address in video memory (in granularity units)
- 01h get video memory window
- Return: DX = window address in video memory (in gran. units)
- BL = window number
- 00h window A
- 01h window B
- Return: AL = 4Fh function supported
- AH = status
- 00h successful
- 01h failed
- SeeAlso: AX=4F06h,AX=4F07h,AX=7000h/BX=0004h
- ----------104F06-----------------------------
- INT 10 - VESA SuperVGA BIOS 1.1 - GET/SET LOGICAL SCAN LINE LENGTH
- AX = 4F06h
- BL = function
- 00h set scan line length
- CX = desired width in pixels
- 01h get scan line length
- Return: AL = 4Fh if function supported
- AH = status
- 00h successful
- 01h failed
- BX = bytes per scan line
- CX = number of pixels per scan line
- DX = maximum number of scan lines
- Notes: if the desired width is not achievable, the next larger width will be set
- the scan line may be wider than the visible area of the screen
- this function is valid in text modes, provided that values are
- multiplied by the character cell width/height
- SeeAlso: AX=4F01h,AX=4F05h,AX=4F07h
- ----------104F07BH00-------------------------
- INT 10 - VESA SuperVGA BIOS 1.1 - GET/SET DISPLAY START
- AX = 4F07h
- BH = 00h (reserved)
- BL = 00h set display start
- CX = leftmost displayed pixel in scan line
- DX = first displayed scan line
- = 01h get display start
- Return: BH = 00h
- CX = leftmost displayed pixel in scan line
- DX = first displayed scan line
- Return: AL = 4Fh if function supported
- AH = status
- 00h successful
- 01h failed
- Note: this function is valid in text modes, provided that values are
- multiplied by the character cell width/height
- SeeAlso: AX=4F01h,AX=4F05h,AX=4F06h
- ----------104FFF-----------------------------
- INT 10 - VESA SuperVGA BIOS - Everex - TURN VESA ON/OFF
- AX = 4FFFh
- DL = new state (00h off, 01h on)
-