INT 10h: Screen

• Set Video Mode
• Set Cursor Size
• Set Cursor Position
• Get Cursor
• Get Pen Position
• Select Display Page
• Scroll Up
• Scroll Down
• Read Character and Attribute
• Write Character and Attribute
• Write Character only at Cursor
• Set Border/Palette
• Set Pixel
• Get Pixel

Set Video Mode

Call

• AH = 00h
• AL = Video Mode

Return

N/A

Set Cursor Size

Call

• AH = 01h
• CH = Start scan line
• CL = End scan line

Return

N/A

Set Cursor Position

Call

• AH = 02h
• BH = Display Page
• DH = Row
• DL = Column

Return

N/A

Get Cursor

Call

• AH = 03h
• BH = Display Page

Return

• CH = Start scan line
• CL = End scan line
• DH = Row
• DL = Column

Get Pen Position

Call

• AH = 04h

Return

• AH = Pen trigger type
  • 00 = Switch off
  • 01 = Coordinate values
• BX = Pixel column
• CH = Pixel row (may be CX in higher res modes)
• DH = Text row
• DL = Text column

Select Display Page

Call

• AH = 05h
• AL = Page number

Return

N/A

Scroll Up

Call

• AH = 06h
• AL = Lines to scroll (0 = Clear screen)
• BH = Blank line attribute
• CH = Upper row
• CL = Left column
• DH = Lower row
• DL = Right column

Return

N/A

Scroll Down

Call

• AH = 07h
• AL = Lines to scroll (0 = Clear screen)
• BH = Blank line attribute
• CH = Upper row
• CL = Left column
• DH = Lower row
• DL = Right column

Return

N/A

Read Character and Attribute

Call

• AH = 08h
• BH = Page Number

Return

• AH = Attribute
• AL = Character

Write Character and Attribute

Call

• AH = 09h
• AL = Character
• BH = Page Number
• BL = Attribute
• CX = Repetitions

Return

N/A

Write Character only at Cursor

Call

• AH = 0Ah
• AL = Character
• BH = Page Number
• CX = Repetitions

Return

N/A

Set Border/Palette

Call

• AH = 0Bh
• BH = Mode
  • 0 = Set Border Color
  • 1 = Set Palette
• BL = Palette/Color

Return

N/A

Set Pixel

Call

• AH = 0Ch
• AL = Pixel Value
  • If bit 7 is set, then value is XOR-ed (not in 256 color mode)
• BH = Page Number
• CX = Pixel Column
• DX = Pixel Row

Return

N/A

Get Pixel

Call

• AH = 0Dh
• BH = Page Number
• CX = Pixel Column
• DX = Pixel Row

Return

• AL = Pixel Value

[ Home ]
[ FAQs | Humor | Icons | Library | Manuals | Organizations | RFCs | Sales | Software | TechRef | Users ]