# HG changeset patch
# User Murugan Vairavel <[email protected]>
# Date 1396504844 -19800
# Thu Apr 03 11:30:44 2014 +0530
# Node ID 0ae4813f9ee908085e4b5a1fe095ca15f0b2cb39
# Parent 67c0aa70a12568e510ee2dcc230a701b9f1988f2
asm: fix invalid read in upShift routine
diff -r 67c0aa70a125 -r 0ae4813f9ee9 source/common/x86/pixel-a.asm
--- a/source/common/x86/pixel-a.asm Wed Apr 02 15:45:14 2014 -0500
+++ b/source/common/x86/pixel-a.asm Thu Apr 03 11:30:44 2014 +0530
@@ -6525,10 +6525,12 @@
.process2:
cmp r4d, 2
jl .process1
- movd m0,[r0]
- pmovzxbw m0,m0
- psllw m0, m2
- movd [r2], m0
+ movzx r3d, byte [r0]
+ shl r3d, 2
+ mov [r2], r3w
+ movzx r3d, byte [r0 + 1]
+ shl r3d, 2
+ mov [r2 + 2], r3w
add r0, 2
add r2, 4
@@ -6536,10 +6538,8 @@
jz .end
.process1:
- movd m0,[r0]
- pmovzxbw m0,m0
- psllw m0, m2
- movd r6, m0
- mov [r2], r6w
+ movzx r3d, byte [r0]
+ shl r3d, 2
+ mov [r2], r3w
.end:
RET
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