hex numbers in asm blocks

[LTee]

Sorry to be creating so many posts the last couple of days.

Should this work?

Code:

asm
defb ffh
end asm

I read a post elsewhere which suggested that that was the correct syntax to use for hex numbers in an asm block, but I get this:

Code:

test.bas:1: Error: Undefined label 'ffh'

If I switch the 'ffh' for a '255' then all is fine. 1.4.0-s1885, as before. Thanks!

[LCD]

have you tried defb $ff ?

[LTee]

I hadn't, no - and that seems to work fine. I'm obviously basing my tests on outdated info.

Many thanks!

[boriel]

I hadn't, no - and that seems to work fine. I'm obviously basing my tests on outdated info.

Many thanks!

The FFh is all letter, and the compiler/assembler think its an identifier.
If you want to ensure it knows it's a hex number, prefix it with 0. So FFh should be 0FFh.
This is common to all assemblers. Any hex number starting with a letter and ending with 'h' must be prefixed with 0. Thus:

A3h => Error (it's an 'identifier'). Use 0A3h
2Bh => Ok (Already starts with a number).

Using the $ prefix is always ok and avoids this problem.

[LTee]

Gotcha! That makes perfect sense.

Thanks, guys!