Re: RP2350 and Pico 2 - things missing

On 23/08/2024 10:17, The Natural Philosopher wrote:

On 22/08/2024 11:57, Ahem A Rivet's Shot wrote:

On Thu, 22 Aug 2024 11:00:26 +0100
Single Stage to Orbit <alex.buell@munted.eu> wrote:
>

FAR and NEAR specifiers used with JMP

>
    The obscenity was these qualifiers making their way into C source
code - try writing (or even reading) the declaration for a near pointer to a
function returning a far pointer to an array of functions returning near
pointers to integers.
>
    Then realise that you *also* wanted this source code to be portable.
>

I don't recall them ever appearing in C source. They are not part of the C language.
AIR you could compile for 'small model' or 'large model'
 And with the early compilers I used, no attempt was made to think about whether a jump was near or far.
 I think you got an assembler or  linker error if a target was 'out of range'
 

No I remember the joy of using NEAR and FAR in C for 8086 code. I can remember being forced to use them in zORLAND C/Zortech C++ and Borland C on 8086 code for PCs running DOS and in embedded 80186EB code.
https://www.geeksforgeeks.org/what-are-near-far-and-huge-pointers/
https://en.wikipedia.org/wiki/Digital_Mars