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#!./parrot -R cgp
# Copyright (C) 2005-2009, Parrot Foundation.
# $Id$
#
# random.pir N (N = 900000 for shootout)
# by Joshua Isom
.sub main :main
.param pmc argv
$S0 = argv[1]
$I0 = $S0
while_1:
gen_random(100.0)
dec $I0
if $I0 > 1 goto while_1
$N0 = gen_random(100.0)
$P0 = new 'FixedFloatArray'
$P0 = 1
$P0[0] = $N0
$S0 = sprintf "%.9f\n", $P0
print $S0
.return(0)
.end
.const num IM = 139968.0
.const num IA = 3877.0
.const num IC = 29573.0
.sub gen_random
.param num max
.local num last
last = 42.0
loop:
$N0 = last
$N0 *= IA
$N0 += IC
$N0 %= IM
$N1 = max
$N1 *= $N0
$N1 /= IM
last = $N0
.yield($N1)
get_params "0", max
goto loop
.end
# Local Variables:
# mode: pir
# fill-column: 100
# End:
# vim: expandtab shiftwidth=4 ft=pir:
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