Makes it possible to use them in arithmetic expressions. --- libavutil/x86/x86inc.asm | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/libavutil/x86/x86inc.asm b/libavutil/x86/x86inc.asm index 6ad9785..afcd6b8 100644 --- a/libavutil/x86/x86inc.asm +++ b/libavutil/x86/x86inc.asm @@ -773,8 +773,9 @@ BRANCH_INSTR jz, je, jnz, jne, jl, jle, jnl, jnle, jg, jge, jng, jnge, ja, jae, %assign cpuflags_bmi1 (1<<22)|cpuflags_lzcnt %assign cpuflags_bmi2 (1<<23)|cpuflags_bmi1 -%define cpuflag(x) ((cpuflags & (cpuflags_ %+ x)) == (cpuflags_ %+ x)) -%define notcpuflag(x) ((cpuflags & (cpuflags_ %+ x)) != (cpuflags_ %+ x)) +; Returns a boolean value expressing whether or not the specified cpuflag is enabled. +%define cpuflag(x) (((((cpuflags & (cpuflags_ %+ x)) ^ (cpuflags_ %+ x)) - 1) >> 31) & 1) +%define notcpuflag(x) (cpuflag(x) ^ 1) ; Takes an arbitrary number of cpuflags from the above list. ; All subsequent functions (up to the next INIT_CPUFLAGS) is built for the specified cpu. -- 1.9.1 _______________________________________________ libav-devel mailing list libav-devel@libav.org https://lists.libav.org/mailman/listinfo/libav-devel
