Multiplication result greater than 255 in UINTEGER var

[LukeBord1]

First of all, as usual, sorry if this was discussed before... at a first sight around the arguments, i didn't find a solution.

The below code works till the "32*(PEEK 32044)" multiplicaton returns a a value within 255, but why?...

Code:

REM 32043 and 32044 store line and column values
REM the routine should return the screen attr address
DIM a AS UINTEGER
a = 22528+PEEK 32043+(32*(PEEK 32044))
REM it doesn't work if the result of the multiplication exceeds 255!