Subj : Re: RP2350 and Pico 2 - things missing
To   : Ahem A Rivet's Shot
From : The Natural Philosopher
Date : Sun Sep 01 2024 13:12:34

On 01/09/2024 11:53, Ahem A Rivet's Shot wrote:
> On Sun, 1 Sep 2024 11:07:17 +0100
> mm0fmf <none@invalid.com> wrote:
>
>> On 01/09/2024 08:50, Lawrence D'Oliveiro wrote:
>>> On Thu, 29 Aug 2024 21:33:28 +0100, druck wrote:
>>>
>>>> Yes stdint.h is your friend
>>>
>>> Unless you have an elderly code base that still hasn’t caught up with
>>> C99 ...
>>
>> Or you were programming in C on an Analog Devices SHARC were char was 32
>> bits.
>
> 	I'll bet that broke a lot of bad code :)
>
> 	Stll even in that environment a compliant compiler should still
> provide int<n>_t types. They'd probably have to have horrendously
> inefficient implementations not dissimilar to the bitfields in structs but
> they should exist. Woe betide anyone who thought they could put a char into
> an int16_t safely though.
>

Ah yes. I was cross compiling C for a 6809 (on a PDP/11) when I
discovered that to do anything with a char it was promoted into a 16 bit
int, which on an 8 bit microprocessor results in a shit load of code.

Needless to say there ended up being a lot of #asm statements..

--
Religion is regarded by the common people as true, by the wise as
foolish, and by the rulers as useful.

(Seneca the Younger, 65 AD)

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