Q34575

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Q34575: MASM 5.10 MACRO.DOC: Character and Cursor Control

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Article: Q34575
Product(s): See article
Version(s): 5.10   | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | | mspl13_masm
Last Modified: 12-JAN-1989

The following information was taken from the MASM Version 5.10
MACRO.DOC file.

CHARACTER AND CURSOR CONTROL

@GetCur (I 10h F 04h)

Gets the cursor position and size

Syntax:         @GetCur [page]

Arguments:      page        = 8-bit page with cursor (if none, 0
assumed)
Return:         DL          = Column
                DH          = Row
                CL          = Starting scan line
                CH          = Ending scan line
Registers used: AX, DX, CX, and BH

@SetCurPos (I 10h F 02h)

Sets the cursor position

Syntax:         @SetCurSz [column] [,[row] [,page]]

Arguments:      column      = 8-bit column; if none, DL used
                row         = 8-bit row; if none, DH used
                page        = 8-bit page with cursor (if none, 0
                              assumed)
Return:         none
Registers used: AX, DX, and BH

@SetCurSz (I 10h F 01h)

Sets the cursor size and shape by specifying active scan lines. The
CGA adapter the lines are 0-7. The monochrome adapter has lines
0-13.

Syntax:         @SetCurSz startline, endline

Arguments:      startline   = 8-bit starting scan line (default C
GA=6; MA=12)
                endline     = 8-bit ending scan line (default CGA=7;
MA=13)
Return:         none
Registers used: AX and CX

@GetChAtr (I 10h F 08h)

Gets the character and attribute at the cursor location

Syntax:         @GetChAtr [page]

Arguments:      page        = 8-bit page to check (if none, 0
assumed)
Return:         AH          = Attribute
                AL          = ASCII character
Registers used: AX and BH

@PutChAtr (I 10h F 09h) and @PutCh (I 10h F 0Ah)

Puts one or more characters and attributes at the current cursor
position. For @PutCh, the current attribute is used in text modes and
any specified attribute is ignored.

Syntax:         @PutChAtr [character] [,[attrib] [,[page]
[,count]]]

Arguments:      character   = 8-bit ASCII character to put; if
                              none, AL used

                attrib      = 8-bit attribute to put; if none, BL
                              used
                page        = 8-bit page to put on (if none, 0
                              assumed)
                count       = Number to put (if none, 1 assumed)
Return:         AH          = Attribute
                AL          = ASCII character
Registers used: AX, BX, CX

@Scroll (I 10h F 06h and 07h)

Scrolls a specified window up or down

Syntax:         @Scroll dist [,[attr] [,[uprow [,[upcol [,[dnrow]
                [,dncol]]]]]
Arguments:      dist        = 8-bit number of lines to scroll;
                              positive scrolls down; negative scrolls
                              up; 0 clears
                attr        = 8-bit attribute for blank lines (if
                              none, 07h)
                uprow       = Upper left row (if none, CH used)
                upcol       = Upper left column (if none, CL used)
                dnrow       = Lower right row (if none, DH used)
                dncol       = Lower right column (if none, DL used)
Return:         none
Registers used: AX, CX, DX, and BH

@Cls (I 10h F 06, 08h, and 02h)

Clears the screen of the current page

Syntax:         @Cls

Arguments:      None
Return:         None
Registers used: AX, BX, CX, and DX

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