Cool AppleSoft BASIC trick I never thought of before

From: allisonp_at_world.std.com <(allisonp_at_world.std.com)>
Date: Thu May 18 08:26:56 2000

Yes, having the app falg "blocked waiting IO" is important if you want the
best efficientcy. The difficult part is sometimes determining that and
keeping it sane.

Allison


On Thu, 18 May 2000, Richard Erlacher wrote:

> You may find that your multitasking effort works better if you don't accept
> a time-slice when it's offered unless you're ready for it. Many times
> (particularly with the rather slow disk I/O, etc) you are I/O bound or
> waiting for another process to complete, it's better all around if you give
> back the time-slice if you can't use it. If the time slice is small (e.g.
> 1/60 sec or so) it won't matter so much, but if it's long, i.e. 1/10 sec, or
> so, you may want to avoid wasting it.
>
> Dick
>
> ----- Original Message -----
> From: <technoid_at_cheta.net>
> To: <classiccmp_at_classiccmp.org>
> Sent: Wednesday, May 17, 2000 8:34 PM
> Subject: Re: Cool AppleSoft BASIC trick I never thought of before
>
>
> > I have a prototype multitasking operating system in 6502 machine language
> > for the Atari 8-bit series machines. Might be useful if I get the gist of
> > what this topic is about. The main purpose was to run several BASIC
> > programs simultaniously and give each a timeslice. The timeslice for each
> > task is adjustable.
> >
> > If true timeshareing is not required then I'd look to Tom Hunt for his
> > AMAZING program "SNAPSHOT". Snapshot swaps images of ram to disk and
> > produces the effect of multitasking but the tasks on disk are of course
> > halted.... It is incredibly compatible. Tom Hunt is a God on 6502. He
> > mainly wrote in ACTION! - a C-like language unique to the Atari from OSS
> > (Optimized System Software - they used to be Sheperdson Microsystems and
> > wrote Atari Basic in addition to many other things in the 8-bit world).
> > Action had the benefit of a runtime package for distribution and very fast
> > program execution when compared to most other languages for the Atari.
> > Action! programs ran at near machine code speed.
> >
> >
> > --
> > -----------------------------------------------------------
> > Jeffrey S. Worley
> > Complete Computer Services
> > 30 Greenwood Rd.
> > Asheville, NC 28803
> > 828-274-5781 0900-1800 weekdays
> > Who is General Failure and why is he reading my hard disk?
> > Technoid_at_Cheta.net
> > -----------------------------------------------------------
> >
>
Received on Thu May 18 2000 - 08:26:56 BST