usr/doc/man/man2/sleep.2

.th SLEEP II 8/5/73
.sh NAME
sleep \*- stop execution for interval
.sh SYNOPSIS
(sleep = 35.; not in assembler)
.br
(seconds in r0)
.br
.ft B
sys sleep
.s3
sleep(seconds)
.ft R
.sh DESCRIPTION
The
current process is suspended from execution
for the number of seconds specified
by the argument.
.sh "SEE ALSO"
sleep (I)
.sh DIAGNOSTICS
\*-