2011-04-15 19:01:29 +00:00
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.TH SEG 1
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.SH NAME
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seg \- access a named segment
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.SH SYNOPSIS
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.B seg
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[
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.B -WLrw
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]
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.I segment
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.I segment-size
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.I offset
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[
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.I value
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]
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.SH DESCRIPTION
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.B seg
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accesses a named segment as provided by e.g. certain drivers.
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The operation to be performed is selected with
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.B -r
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and
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.B -w
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for reading and writing, respectively.
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The default operation size is a byte.
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C style notation for integers (e.g.
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.B 0x42
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or
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.BR 023 )
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is accepted for the
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.IR segment-size ,
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.IR offset
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and
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.I value
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parameters.
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.PP
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.TP
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.B -W
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Perform a word (16 bit) operation
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.TP
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.B -L
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Perform a long / double word (32 bit) operation.
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.SH SOURCE
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.B /sys/src/cmd/seg.c
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.SH SEE ALSO
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.IR io (1)
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.SH BUGS
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No check of the
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.I segment-size
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and
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.I offset
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parameters is performed whatsoever.
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Odd values may cause the front to fall off.
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2015-02-20 19:28:56 +00:00
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.SH HISTORY
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.I Seg
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first appeared in 9front (April, 2011).
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