Mercurial > repo

view wisdom/=@ccc @ 12014:4f03bd239f7c draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
<kspalaiologos> ` cat > wisdom/labels.pl <<<"Preprocessor for asm2bf to support labels. Use % to refer to a label, use @ to declare one."
author HackEso <hackeso@esolangs.org>
date Thu, 14 Nov 2019 16:16:14 +0000
parents 2c77460677fc
children
line wrap: on
line source

=@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 , https://marc.info/?l=linux-kernel&m=143786977730804 .