V4/man/man2/csw.2

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.th CSW II 8/5/73
.sh NAME
csw \*- read console switches
.sh SYNOPSIS
(csw = 38.; not in assembler)
.br
.ft B
sys	csw
.s3
getcsw( )
.ft R
.sh DESCRIPTION
The setting of
the console switches is returned (in r0).