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authorMåns Rullgård <mans@mansr.com>2010-02-09 16:13:26 +0000
committerMåns Rullgård <mans@mansr.com>2010-02-09 16:13:26 +0000
commite6056a9008f02382eb593169603e7298e64b84f7 (patch)
tree6e2165f7a65af886ac08f32bb76110dfd1deb9f6 /libavcodec/arm/dsputil_armv6.S
parent38e016a7c9ec2da71ebf8c6b942f11308d0baec6 (diff)
downloadffmpeg-e6056a9008f02382eb593169603e7298e64b84f7.tar.gz
ARMv6 optimised pix_abs16
Originally committed as revision 21697 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/arm/dsputil_armv6.S')
-rw-r--r--libavcodec/arm/dsputil_armv6.S29
1 files changed, 29 insertions, 0 deletions
diff --git a/libavcodec/arm/dsputil_armv6.S b/libavcodec/arm/dsputil_armv6.S
index 6180378841..b86a31fb6f 100644
--- a/libavcodec/arm/dsputil_armv6.S
+++ b/libavcodec/arm/dsputil_armv6.S
@@ -286,3 +286,32 @@ function ff_add_pixels_clamped_armv6, export=1
bgt 1b
pop {r4-r8,pc}
.endfunc
+
+function ff_pix_abs16_armv6, export=1
+ ldr r0, [sp]
+ push {r4-r9, lr}
+ mov r12, #0
+ mov lr, #0
+ ldm r1, {r4-r7}
+ ldr r8, [r2]
+1:
+ ldr r9, [r2, #4]
+ pld [r1, r3]
+ usada8 r12, r4, r8, r12
+ ldr r8, [r2, #8]
+ pld [r2, r3]
+ usada8 lr, r5, r9, lr
+ ldr r9, [r2, #12]
+ usada8 r12, r6, r8, r12
+ subs r0, r0, #1
+ usada8 lr, r7, r9, lr
+ beq 2f
+ add r1, r1, r3
+ ldm r1, {r4-r7}
+ add r2, r2, r3
+ ldr r8, [r2]
+ b 1b
+2:
+ add r0, r12, lr
+ pop {r4-r9, pc}
+.endfunc