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From: The Natural Philosopher <tnp@invalid.invalid>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: RP2350 and Pico 2 - things missing
Date: Thu, 22 Aug 2024 11:24:40 +0100
Organization: A little, after lunch
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On 22/08/2024 11:00, Single Stage to Orbit wrote:
> On Thu, 2024-08-22 at 09:17 +0100, The Natural Philosopher wrote:
>> IIRC 8086 was the same for conditional jumps.
>>
>> In fact the whole small model thing was coding for a 64k page.
>>
>> There were a few instructions that worked across pages...but my
>> memory is dim.
> 
> FAR and NEAR specifiers used with JMP were often used for intra segment
> calls. Data could also be accessed with the same specifiers too, hence
> there were five different memmory models, tiny, small, medium, large
> and huge with different code and data accesses.

Yes, that all sounds vaguely familiar. All that forgotten knowledge that 
I will take to the
grave with me, where, arguably, it belongs...

It was a horrible processor to do assembler on, but I made a living out 
of it for several years.

Thank Clapton for 'C' and Unix/Linux/Gnu and the 386 series at which 
point one no longer had to...
-- 
No Apple devices were knowingly used in the preparation of this post.