From: Borja F. <bor...@gm...> - 2013-07-22 18:16:21
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Hello Stepan, 3) Yes, it's the second case. It's explained in http://www.nongnu.org/avr-libc/user-manual/inline_asm.html but in case there are any doubts basically it works the same way as multibyte constraints except that when you see an "aN", where N is a number, you should print the alternative regname. Of course this should only work for X Y and Z, not sure how gcc complains when you use another register, or maybe it ignores it and prints the normal register name. |