newbie

hello all!

i'm taking linux assembly as a hobby for christmas and i found your great site. the tutorials have been much helpful.

anyway, i meant to ask something.. 

section .data
	string: db "hi!",10

and i wanna capitalize the small letter 'h'.

at first i used
	mov di, string ; but di is 16 bits and ld complains

so i eventually started using the 32 bit ones to do the capitalisation operation. but for some reason, i lose all other letters, including the linefeed.

please point me to the right direction.

merry christmas,
- niel