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updated manual page

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ceriel 1991-11-20 16:45:25 +00:00
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util/opt/em_opt.6
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@ -4,8 +4,8 @@
.SH NAME
em_opt \- EM peephole optimizer
.SH SYNOPSIS
.B ~em/lib/em_opt
[-Ln] [ argument ]
.B ~em/lib.bin/em_opt
[-Ln] [-m[l]<num>] [ argument ]
.SH DESCRIPTION
Em_opt reads a compact EM-program, argument or standard input,
and produces another compact EM program on standard output
@ -23,10 +23,16 @@ the names of all exported entities in this module.
Do not optimize.
No peephole optimizations will be performed,
other functions will be carried out.
.IP -m<num>
Try to replace multiplies with constants by combinations of shifts and adds,
but no more than <num> of them. Integer overflow detection is lost with this
option.
.IP -ml<num>
Like -m<num>, but also for long multiplies.
.SH "FILES"
/usr/tmp/emopt??????, is used when the -L flag is given only.
.SH "SEE ALSO"
ack(I)
ack(1)
.PD 0
.IP [1]
A.S. Tanenbaum, Hans van Staveren, Ed Keizer and Johan