X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Fx86%2Fx86util.asm;h=1064e9a25cac9f1fce11b5175b4f4804de8ccb75;hb=6e8e9f1e517ee52fe439f3e8ca762f09d235f21e;hp=67d7905132837d97e9f99b639c44d709d43c3337;hpb=43c57dbe14545d13dbfd8aae341b45514e8bcfbb;p=ffmpeg

diff --git a/libavutil/x86/x86util.asm b/libavutil/x86/x86util.asm
index 67d79051328..1064e9a25ca 100644
--- a/libavutil/x86/x86util.asm
+++ b/libavutil/x86/x86util.asm
@@ -288,7 +288,12 @@
     paddd   %1, %2
 %endif
 %if notcpuflag(xop) || sizeof%1 != 16
+%if cpuflag(mmxext)
     PSHUFLW %2, %1, q0032
+%else ; mmx
+    mova    %2, %1
+    psrlq   %2, 32
+%endif
     paddd   %1, %2
 %endif
 %undef %1
@@ -335,11 +340,19 @@
 %endif
 %endmacro
 
-%macro PAVGB 2
+%macro PAVGB 2-4
 %if cpuflag(mmxext)
     pavgb   %1, %2
 %elif cpuflag(3dnow)
     pavgusb %1, %2
+%elif cpuflag(mmx)
+    movu   %3, %2
+    por    %3, %1
+    pxor   %1, %2
+    pand   %1, %4
+    psrlq  %1, 1
+    psubb  %3, %1
+    SWAP   %1, %3
 %endif
 %endmacro