Re: [Flashforth-devel] Switching Endians

[Mikael N. <mik...@pp...>]

It's  a bug in a FlashForth system.
All stack manipulating words are written so that the stack can be anywhere.

Let's say the word is used in one of many background tasks.
It's a bit difficult to predict if the word will be used on a page 
boundary or not.

If you don't use the word in a BG task you will in practice get away 
with it.
But somebody else may not and be hit with a really subtle bug.

Peace ! Mike

On 03/27/2014 09:57 PM, craig bair wrote:
> The way you wrote the initial stack allocation and the size limit you 
> specified won't allow it to cross a page boundry, therefore there's no 
> bug. (grin)  Thought of that when reverse engineering the locations 
> the sp pointed at. Re-read the source to be sure.   Actually, my first 
> try had the FSR0 inc and dec reversed with amusing results...
>