On 12/16/2013 11:29 AM, Luchezar Belev wrote: > Hello, > Sometimes one needs to pass an immediate operand to asm statement that > should not be prefixed with dollar sign (e.g. for doing custom things > with assembly directives). > > After much search in the internet i managed to find the way to do it: > when the operand is used in the assembly string, it must have the 'a' > modifier. (e.g. ".equ name, %a0" instead of ".equ name, %0". > > My question is: why is this feature not mentioned anywhere in the GCC > documentation and is so extremely hard to find info about? Does this > mean that it is planned for removal or deprecation? Can one rely on > it's presence in future GCC versions? > (I think it is extremely useful for some specific tasks, please don't > remove it!) > It's probably simply that no-one has got around to documenting it. To be sure you'd need to trawl through the archives. Andrew.
