Using Hexadecimal numbers for array dimensioning and printing -what am I doing wrong?

[dowster]

XBYFAIL has a negative index range.
Not a problem in itself.
If you define E9 also negative  E9 = &HE900   then all is fine

 Thanks for the suggestion, but the range is smaller and the program does arithmetic on the index (and the index has a physical meaning).

 Perhaps this page needs a little more detail in the example:

Code: (Select All)

a& = &HC0DEBA5E 

https://qb64phoenix.com/qb64wiki/index.php/%26H

I understand what's happening.  I maybe just need to define more of the variables explicitly