Hi all, I have two questions related to the modifiers that can be used with operands in inline assembly. 1) What does the 'z' mean when added to the operand modifier (e.g. %z0)? 2) In the Input operands list, what is the meaning of 'J' (e.g. ... : .... : "Jr" (0) )? I tried to look them up in the online GCC manual but I couldn't find them. Any help is highly appreciated. Regards, -- Mohamed Ahmed Bamakhrama Am Schaeferanger 15, room 035 85764 Oberschleissheim, Germany Email: bamakhra@xxxxxxxxxx Web: http://home.cs.tum.edu/~bamakhra/ Mobile: +49-160-9349-2711