Hi,
How should you what?
The HEX, DEC, BIN modifiers are used to present the same number in different ways - but it's still the same number. A value of 10 is always 10 but depending on the modifer used it can be displayed as DECimal (10) HEXadecimal (A) or BINary (00001010) but again it's still the same value.

Lets say hh has the value of 123, what do you expect A to be?

/Henrik.