Kernel110614: bios简表
Email: zcatt@163.com
Blog http://zcatt.blog.chinaunix.net
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Date Ver Note
2011-06-14 0.1 Draft. zcatt, Beijing
设定ah, 或ax, 或eax, 与一个中断号组合起来, 指定了要调用的bios某个特定功能.
bios大致分为这样几类,
INT 0x10, 显示相关. Video display functions (including VESA/VBE)
INT 0x13, 大容量存储相关. mass storage (disk, floppy) access
INT 0x15, 内存相关. memory size functions
INT 0x16, 键盘相关. keyboard functions
罗列,
INT 0x10, AH = 1 -- set up the cursor
INT 0x10, AH = 3 -- cursor position
INT 0x10, AH = 0xE -- display char
INT 0x10, AH = 0xF -- get video page and mode
INT 0x10, AH = 0x11 -- set 8x8 font
INT 0x10, AH = 0x12 -- detect EGA/VGA
INT 0x10, AH = 0x13 -- display string
INT 0x10, AH = 0x1200 -- Alternate print screen
INT 0x10, AH = 0x1201 -- turn off cursor emulation
INT 0x10, AX = 0x4F00 -- video memory size
INT 0x10, AX = 0x4F01 -- VESA get mode information call
INT 0x10, AX = 0x4F02 -- select VESA video modes
INT 0x10, AX = 0x4F0A -- VESA 2.0 protected mode interface
INT 0x11 -- Hardware detection
INT 0x13, AH = 0 -- reset floppy/hard disk
INT 0x13, AH = 2 -- read floppy/hard disk in CHS mode
INT 0x13, AH = 3 -- write floppy/hard disk in CHS mode
INT 0x13, AH = 0x15 -- detect second disk
INT 0x13, AH = 0x41 -- test existence of INT 13 extensions
INT 0x13, AH = 0x42 -- read hard disk in LBA mode
INT 0x13, AH = 0x43 -- write hard disk in LBA mode
INT 0x12 -- get low memory size
INT 0x15, EAX = 0xE820 -- get complete memory map
INT 0x15, AX = 0xE801 -- get contiguous memory size
INT 0x15, AX = 0xE881 -- get contiguous memory size
INT 0x15, AH = 0x88 -- get contiguous memory size
INT 0x15, AH = 0xC0 -- Detect MCA bus
INT 0x15, AX = 0x0530 -- Detect APM BIOS
INT 0x15, AH = 0x5300 -- APM detect
INT 0x15, AX = 0x5303 -- APM connect using 32 bit
INT 0x15, AX = 0x5304 -- APM disconnect
INT 0x16, AH = 0 -- read keyboard scancode (blocking)
INT 0x16, AH = 1 -- read keyboard scancode (non-blocking)
INT 0x16, AH = 3 -- keyboard repeat rate
