From 4f928a4d2d10110fe386c3512d22797a3f85502c Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Tue, 27 Jan 2009 16:06:38 +0000 Subject: ARM: optimised mid_pred() Originally committed as revision 16819 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/arm/mathops.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'libavcodec') diff --git a/libavcodec/arm/mathops.h b/libavcodec/arm/mathops.h index 00279181db..de2d5300b7 100644 --- a/libavcodec/arm/mathops.h +++ b/libavcodec/arm/mathops.h @@ -90,4 +90,22 @@ static inline av_const MUL16(int ra, int rb) #endif +#define mid_pred mid_pred +static inline av_const int mid_pred(int a, int b, int c) +{ + int m; + __asm__ volatile ( + "mov %0, %2 \n\t" + "cmp %1, %2 \n\t" + "movgt %0, %1 \n\t" + "movgt %1, %2 \n\t" + "cmp %1, %3 \n\t" + "movle %1, %3 \n\t" + "cmp %0, %1 \n\t" + "movgt %0, %1 \n\t" + : "=&r"(m), "+r"(a) + : "r"(b), "r"(c)); + return m; +} + #endif /* AVCODEC_ARM_MATHOPS_H */ -- cgit v1.2.3