Re: Where does the Applesoft RND() function get its data?

[Toinet <antoine.vignau@laposte.net>]

On 25 fév, 16:51, BLuRry <brendan.rob...@gmail.com> wrote:
> On Feb 25, 7:18 am, Toinet <antoine.vig...@laposte.net> wrote:
>
>
>
>
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> > "PSUEDO-RANDOM NUMBER GENERATOR.
>
> > IF ARG=0, THE LAST RANDOM NUMBER GENERATED IS RETURNED.
> > IF ARG .LT. 0, A NEW SEQUENCE OF RANDOM NUMBERS IS STARTED USING THE
> > ARGUMENT.
> > TO FORM THE NEXT RANDOM NUMBER IN THE SEQUENCE, MULTIPLY THE PREVIOUS
> > RANDOM NUMBER BY A RANDOM CONSTANT AND ADD IN ANOTHER RANDOM CONSTANT.
> > THE THEN HO AND LO BYTES ARE SWITCHED, THE EXPONENT IS PUT WHERE IT
> > WILL BE SHIFTED IN BY RMAL, & THE EXPONENT IN THE FAC IS SET TO 200 SO
> > THE RESULT WILL BE LESS THAN 1. THIS IS THEN NORMALIZED AND SAVED FOR
> > THE NEXT TIME. THE HO AND LOW BYTES WERE SWITCHED SO THERE WILL BE A
> > RANDOM CHANCE OF GETTING A NUMBER LESS THAN OR GREATER THAN .5."
>
> > There is a routine in ROM as well as a table for the use of it.
>
> > Sorry about the capital letters but it is not my writing (I am not
> > responsible for the mistakes)
>
> > antoine
>
> Yes, in the source code of days gone past, they didn't think they were
> yelling.  Probably because they didn't have caps lock back then.  ;-)

Michael and you are probably right. Who knows! AHAHAHAHAHAHAHAHAHAH

antoine