Mercurial > repo
view wisdom/=@ccc @ 11260:c094d07815e0
<oerjan> le/rn this//This is something people on the channel like to talk about. We\'re often unsure what this is, though.
author | HackBot |
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date | Sat, 09 Dec 2017 11:45:42 +0000 |
parents | ca3b393399c0 |
children | 2c77460677fc |
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=@ccc is a great innovation in gcc 6, kept top secret, where inline asm statements can return a value in the carry flag on x86_64. See https://gcc.gnu.org/gcc-6/changes.html which keeps this secret, https://gcc.gnu.org/onlinedocs/gcc-6.1.0/gcc/Extended-Asm.html , http://article.gmane.org/gmane.linux.kernel/2238065 .