# HG changeset patch # User HackBot # Date 1466156542 0 # Node ID 17fe74d0eff853dbbf067eed64dfbc54b289a8da # Parent dadac04ddd97e3efa5ebe6a0b0e070b719bb58e1 slashlearn =@ccc/=@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 which documents it, and http://article.gmane.org/gmane.linux.kernel/2238065 which uses it. diff -r dadac04ddd97 -r 17fe74d0eff8 wisdom/=@ccc --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/wisdom/=@ccc Fri Jun 17 09:42:22 2016 +0000 @@ -0,0 +1,1 @@ +=@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 which documents it, and http://article.gmane.org/gmane.linux.kernel/2238065 which uses it.