DEFB bug

[britlion]

You can enter hex as 80h or as $80.

But defb ddh doesn't seem to work. Was happy as defb $dd

[boriel]

You can enter hex as 80h or as $80.

But defb ddh doesn't seem to work. Was happy as defb $dd

This is not a bug (I think it's already been discussed somewhere over here), but a feature:
'ddh' is an identifier (a word), not a number. To state clear it's a number, prefix it with a leading 0:

Code:

defb 0ddh