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back2root:ibm-pc-ms-dos:interrupts:int_21:int_21_06_ff
Table des matières
INT 0x21 - 0x06 - Direct console input (Sub Function FFh)
Request/Call:
| reg | value | descr |
|---|---|---|
| AH | 0x06 | |
| DL | 0xFF |
Return:
if ZF=1 : no character is available
if ZF=0 : character is available in AL
| reg | descr |
|---|---|
| AL | character read |
Notes & Comments
- does NOT check ^C/^Break
- if the returned character is 00h, the user pressed a key with an extended keycode, which will be returned by the next call of this function
- reads from standard input, which is always the keyboard under DOS 1.x, but may be redirected under DOS 2+
SeeAlso: AH=08h
back2root/ibm-pc-ms-dos/interrupts/int_21/int_21_06_ff.txt · Dernière modification : de frater
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