[Coco] BASIC program crashing Xroar emulator?

[William Astle]

On 2025-02-27 10:31, Allen Huffman via Coco wrote:
> On Feb 27, 2025, at 11:23 AM, William Astle via Coco <coco at maltedmedia.com> wrote:
> This must be it. The first code line sets palettes and does a WIDTH 80. Then CLEAR 17000 and some DIMs.
> 
> Surely I ran into this and have a fixed version somewhere. What is the fix? CLEAR first from 32, then go 80?
> 
The only solution as far as I can tell is do no output on the 40/80 
column screen or clear less string space. Given that a lot of the 
numbers used for CLEAR for string space are effectively random with no 
real understanding of how big they need to be, it's entirely possible 
that 17000 is way more than it needs to be. Something most programmers 
don't know is that a string constant in the program that is never 
modified doesn't use up any string space so often the CLEAR number is 
massively larger than it needs to be.

Having the WIDTH before the CLEAR should prevent WIDTH from crashing but 
any subsequent PRINT, LOCATE, INPUT (from keyboard), or HSTAT probably 
would crash.