[TUHS] v7 K&R C

[Steve Nickolas]

On Sat, 16 May 2020, Peter Jeremy wrote:

> On 2020-May-15 16:56:42 -0400, Steve Nickolas <usotsuki at buric.co> wrote:
>> Isn't it nonstandard (although I am aware of some compilers that do it) to
>> default the type of char to unsigned?
>
> The standard allows "char" to be either signed or unsigned.  The ARM ABI
> defines char as unsigned.
>
> I recall that Lattice C on the M68K allowed either signed or unsigned char
> via a flag.  Setting it to "unsigned" generally produced faster code on
> my Amiga, though some code assumed signed chars and broke.

Borland did the same.

CC65, I think, defaults to unsigned char, but it's missing some other 
features.  It is, however, the closest (to my knowledge) that C on the 
6502 gets to ANSI starndard.

-uso.