UNGETC(2) Manual Page

NAME

UNGETC - return a character to the top of the stream

SYNOPSIS

Input

AC - byte to put back to stream
XR - stream number

Call

jsr UNGETC

Output

C=0
- AC - byte put to stream
C=1
- AC - error code

Note	XR and YR are not modified (except STDIO streams return true stream number)

DESCRIPTION

Gives byte from stream back. parameter: stream number in x, data byte in a, returns error code in a

RETURN CODES

Error return codes are given when at return, C=1.

E_NOSTR: no valid stream number
E_NUL: no reader in stream
E_SFULL: stream is already full

SEE ALSO

streams(7), GETSTR(2), FRESTR(2), GETC(2), PUTC(2), STRCMD(2)

AUTHOR

Written by André Fachat.

REPORTING BUGS

Please report bugs at https://github.com/fachat/GeckOS-V2/issues