On Sun, 3 Jan 2021 22:40:33 -0000 (UTC)
Martin Gregorie  wrote:

> On Sun, 03 Jan 2021 21:16:36 +0000, Joe wrote:
>
> > On Sun, 3 Jan 2021 19:36:54 -0000 (UTC)
> > Martin Gregorie  wrote:
> >
> >> A fairly rapid web search failed to discover whether unsigned
> >> arithmetic is a feature of the BASIC
> >
> > There is no feature list of BASIC.
> >
> I know that all so-called BASICs differ, some radically from the
> original Dartmouth BASIC. I thought that the context would make it
> plain that I was talking about PICAXE BASIC, which differs enough
> from traditional BASICs to be given another name (labels not numbers
> for branch destinations and subroutines, long names for variables,
> named constants, unsigned arithmetic and comparisons, conditional
> statement inclusion).
>
> > No. All the arithmetic operators are signed,
> >
> Not according to the current PICAXE BASIC manual, which gives numeric
> ranges for 8 and 16 bit variables capable of containing byte values
> in the range 0-255 and explicitly says that byte values are unsigned.
> It alao says that 16 bit variable can hold 0-65535, which implies,
> though it doesn't state, that these are unsigned.

Sorry, misunderstanding. I thought you were asking if PICAXE couldn't
do signed because the underlying PIC processor couldn't handle signed.

--
Joe

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