Re: [gforth] how to build a really working random seed ?

[Francois Pussault]

don't know where I found it exactly  ... google as for all  I ever need when I 
failed to build a word by myself 

:) 


OK so there are .fs file to be called with include..... 

I missed that all ! 
:D

Gforth 0.7.2, Copyright (C) 1995-2008 Free Software Foundation, Inc.
Gforth comes with ABSOLUTELY NO WARRANTY; for details type `license'
Type `bye' to exit
include /usr/share/gforth/0.7.2/random.fs  ok
: 10rnd 10 0 do 10 random . ."  " loop cr ;  ok
10rnd 0  0  0  1  7  9  8  9  0  2  
 ok


Of course now all would be easier to understand. :) 

thanks a lot  !!

so I m going to study what's in my /usr/share/gforth/0.7.2/*fs files :) 




> ----------------------------------------
> From: <address@hidden>
> Sent: Sun Jul 16 19:01:46 CEST 2017
> To: <address@hidden>
> Subject: [gforth]  how to build a really working random seed ?
> 
> 
> Francois Pussault writes:
> > I found a procedure:
> [..]
> 
> That seems to be an experiment in how many stack errors and
> fundamental flaws can be packed in a single definition. Where
> did you find that?
> 
> Adding some swaps and fixing the 32/64 incompatibility may fix
> this shiftregister based algorithm, but better throw it away
> altogether.
> 
> By reading the coding it is obvious that when the 'register'
> encounters a zero it will stick there. In this case you didn't
> execute randomize, so it sticks right away.
> 
> I think Gforth has random ( u1 -- u2 ), and 2 CHOOSE should
> work for a 1/0 sequence (or 2 choose invert).
> 
> -marcel
> 
> 


Cordialement
Francois Pussault
10 chemin de négo saoumos
apt 202 - bat 2
31300 Toulouse
+33 6 17 230 820 
address@hidden