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int 10H
IN
OUT
AH=00 设置显示模式
ah=0 al=video mode
AH=01 设置光标类型
ah=1 ch=start scan line cl=end scan line
AH=02 设置光标位置
ah=2 bh=display page dh=row dl=col
ax=0
AH=03 读取光标位置
ah=3 bh=display page
ax=0 ch=start scan line cl=end scan line dh=row dl=col
AH=04 读取光笔位置
ah=4
ah=pen trigger signal bx=pixel c1olumn ch=pixel row dh=character row dl=character coloumn
AH=05 指定显示页
ah=5 al=page number
AH=06 初始化窗口,上滚窗口
ah=6 al=lines to scroll up bh=blank line attribute ch=upper row cl=left column dh=lower row dl=right column
AH=07 初始化窗口,下滚窗口
ah=7 al=lines to scroll down bh=blank line attribute ch=upper row cl=left column dh=lower row dl=right column
AH=08 读字符及属性
ah=8 bh=page number
ah=attribute al=character
AH=09 写字符及属性
ah=9 al=character bh=page number bl=attribute cx=number of character to write
AH=0A 当前光标处写字符
ah=0AH al=character bh=page number cx=number of character to write
AH=0B 设调色板
ah=0BH bh=palette ID bl=color ID
AH=0C 写像素
ah=0CH al=color
AH=0D 读像素
ah=0DH bh=page number cx=pixel column dx=pixel row
al=color
AH=0E 电传机方式写文本
ah=0EH al=character bh=page number bl=foreground color
AH=0F 取当前显示模式
ah=0FH
ah=columns al=display modes bh=active page number
AH=10 设调色板寄存器
ah=10H al=command bh=value bl=palette reg dx=offset of pointer to 17-byte table es=segment of pointer to 17-byte table
bh=value
AH=11 字符生成器
ah=11H al=command bp=offset of pointer to user table es=segment of pointer to user table
AH=12 改变选择
ah=12H bl=command
AH=13 写字符串
ah=13H al=mode bh=page number bl=attribute cx=character count dx=start cursor position bp=offset of pointer to string es=segment of pointer to string
AH=1A 读显示码
ah=1AH al=0
al=status bh=alternate disp code bl=active disp code
AH=1A 写显示码
ah=1AH al=1 bh=alternate disp code bl=active disp code
al=status
AH=1B 返回状态
ah=1BH bx=implementation type di=offset of pointer to empty buffer es=segment of pointer to empty buffer
al=status di=offset of pointer to video state buffer es=segment of pointer to video state buffer
AH=1C 返回保存/恢复
ah=1CH al=0 cx=request states
al=status bx=number 64-byte blocks for state
AH=1C 保存状态
ah=1CH al=1 bx=offset of pointer to video state buffer cx=request states es=segment of pointer to video state buffer
al=status
AH=1C 恢复状态
ah=1CH al=2 bx=offset of pointer to video state buffercx=request states es=segment of pointer to video state buffer
al=status
AH=FE 取视频缓冲区
ah=0FEH di=offset of physical video buffer es=segment of physical video buffer
di=offset of logical video buffer es=segment of logical video buffer
AH=FF 更新视频缓冲区
ah=0FFH cx=number of characters modified di=offset to first character modified es=segment of logical video buffer
取内存大小服务
ax=memory size
鼠标屏幕和光标掩码: int 10H,12H,鼠标掩码等资料
屏幕和光标掩码的作用效果：
Screen Mask Bit
Cursor Mask Bit
Resulting Screen Bit
0
0
0
0
0
1
1
0
Unchanged
1
1
Inverted
屏幕的字符数据:
Bit number
Description
Comments
15
Blink control
1=blinking character
12-14
Background color
11
Intensity control
1=high intensity
8-10
Foreground color
0-7
Character
ASCII value
加速曲线:
Part of table
offset(decimal)
Length(in bytes)
Description
Curve lengths
0
1
number of counts/factors in first curve
1
1
number of counts/factors in second curve
2
1
number of counts/factors in third curve
3
1
number of counts/factors in fourth curve
Mouse counts
4
32
array of counts for first curve
36
32
array of counts for second curve
68
32
array of counts for third curve
100
32
array of counts for fourth curve
Scale Factors
132
32
array of scale factors for first curve
164
32
array of scale factors for second curve
196
32
array of scale factors for third curve
228
32
array of scale factors for fourth curve
Curve names
260
16
ASCII string for first curve
276
16
ASCII string for second curve
292
16
ASCII string for third curve
308
16
ASCII string for fourth curve
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