[gforth] / gforth / random.fs  

gforth: gforth/random.fs

File: [gforth] / gforth / random.fs (download)
Revision: 1.2, Tue Nov 7 18:06:58 1995 UTC (17 years, 6 months ago) by anton
Branch: MAIN
CVS Tags: gforth-0_1beta, v0-4-0, v0-3-0, v0-2-0, v0-2-1
Changes since 1.1: +18 -0 lines 
added copyright headers
changes to loadfilename & co. to make savesystem transparent to
 assertions and ~~

\ generates random numbers                             12jan94py

\ Copyright (C) 1995 Free Software Foundation, Inc.

\ This file is part of Gforth.

\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation; either version 2
\ of the License, or (at your option) any later version.

\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
\ GNU General Public License for more details.

\ You should have received a copy of the GNU General Public License
\ along with this program; if not, write to the Free Software
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

Variable seed

$10450405 Constant generator

: rnd  ( -- n )  seed @ generator um* drop 1+ dup seed ! ;

: random ( n -- 0..n-1 )  rnd um* nip ;
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