dec to hex conversion

[ZZX]

can somebody suggest/post a quick/small ascii to hex or dec to hex conversion routine. Make sure it works for a 3 digit.
I can convert from hex to dec like this:
dec1= hex1/16 + '0';
dec2= hex2/16 + '0';

Id be grateful if somebody suggests the opposite i.e dec to hex but workable algo for a 3 digit value tooo.

ZZX

[Mark]

Look in the manual for:

atoi()
atol()
atoi32()
STRTOUL()
printf()

[Guest]

Thank you for the hint.
Can you also specify if theres a function available for string to BCD conversion? Itll be a lot of help !

[Mark]

Search the board for BCD functions, You could also write one yourself.