Rocksolid Light - comp.arch - Re: ancient instruction sets, was character codes, Load/Store with auto-increment

Re: ancient instruction sets, was character codes, Load/Store with auto-increment

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https://news.novabbs.org/devel/article-flat.php?id=32193&group=comp.arch#32193

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From: bagel99@gmail.com (Brian G. Lucas)
Newsgroups: comp.arch
Subject: Re: ancient instruction sets, was character codes, Load/Store with
auto-increment
Date: Fri, 12 May 2023 14:40:05 -0500
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by: Brian G. Lucas - Fri, 12 May 2023 19:40 UTC

On 5/9/23 19:18, John Levine wrote:
> According to Scott Lurndal <slp53@pacbell.net>:
>> Using the 8088 was always torture for those of us who grew up with
>> PDP-8s and PDP-11.
>
> I really did grow up on PDP-8 and PDP-11 (with detours to PDP-6/10 and
> som OS/360) and the 8086/8088 wasn't so bad.
>
> Dunno if anyone remembers PC/IX. It was Unix System III ported from
> PDP-11 to IBM PC. It worked remarkably well. It was small model only,
> 64K each of code and data. We found that 8088 code was slightly
> smaller than PDP-11 code so everything that fit on the -11 fit on
> PC/IX. It was reliable enough that we once got a bug report about
> something that only happened after a machine had been running
> continuously for a year.
>
At least one of us remembers PC/IX. Been there, done that, still have
the T-shirt.

brian

> The frustrating bit was that the 8088 had considerably more than 64K
> of code and data, and people would like to use it all, but the ways to
> do that were at best a kludge. In a later job I worked on Javelin
> which was medium mode code. It used code overlays to keep the code
> footprint reasonably small, and whatever memory was left for data,
> including bank switched "expanded" memory up to a then-amazing 8
> megabytes.
>

Subject	Author
Re: ancient instruction sets, was character codes, Load/Store with	Brian G. Lucas

I've looked at the listing, and it's right! -- Joel Halpern

devel / comp.arch / Re: ancient instruction sets, was character codes, Load/Store with auto-increment