en:docs:dos:api:int29

Note: This API call is for DOS personality only. Use Family API for portability.

2018/09/07 07:04 · prokushev

Int 29H

Version

2 and higher

Brief

FAST CONSOLE OUTPUT

Family API

Input

  • AL = character to display

Return

  • nothing

Macro

Notes

BX may be destroyed by some versions of DOS 3.3

automatically called when writing to a device with bit 4 of its device driver header set (see also INT 21/AH=52h)

COMMAND.COM v3.2 and v3.3 compare the INT 29 vector against the INT 20 vector and assume that ANSI.SYS is installed if the segment is larger

the default handler under DOS 2.x and 3.x simply calls INT 10/AH=0Eh

the default handler under DESQview 2.2 understands the <Esc>[2J screen-clearing sequence, calls INT 10/AH=0Eh for all others

See Also

INT 21/AH=52h,INT 2F/AX=0802h,INT 79“AVATAR.SYS”

Note


en/docs/dos/api/int29.txt · Last modified: 2021/08/30 12:35 by prokushev