diff options
Diffstat (limited to 'src/thirdparty/VirtualDub/system/source/a_memory.asm')
| -rw-r--r-- | src/thirdparty/VirtualDub/system/source/a_memory.asm | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/thirdparty/VirtualDub/system/source/a_memory.asm b/src/thirdparty/VirtualDub/system/source/a_memory.asm index e4b6cac8b..42a8ca998 100644 --- a/src/thirdparty/VirtualDub/system/source/a_memory.asm +++ b/src/thirdparty/VirtualDub/system/source/a_memory.asm @@ -130,6 +130,60 @@ _VDFastMemcpyPartialMMX2: pop ebp
ret
+ global _VDFastMemcpyPartialSSE2
+_VDFastMemcpyPartialSSE2:
+ push ebp
+ push edi
+ push esi
+ push ebx
+
+ mov edi, [esp+4+16]
+ mov esi, [esp+8+16]
+ mov ecx, [esp+12+16]
+ shr ecx, 7
+ cmp ecx, 0
+ jbe .skipblastloop
+.blastloop:
+ prefetchnta [esi+16*8]
+ movaps xmm0, [esi]
+ movaps xmm1, [esi+16*1]
+ movaps xmm2, [esi+16*2]
+ movaps xmm3, [esi+16*3]
+ movaps xmm4, [esi+16*4]
+ movaps xmm5, [esi+16*5]
+ movaps xmm6, [esi+16*6]
+ movaps xmm7, [esi+16*7]
+ movntps [edi], xmm0
+ movntps [edi+16*1], xmm1
+ movntps [edi+16*2], xmm2
+ movntps [edi+16*3], xmm3
+ movntps [edi+16*4], xmm4
+ movntps [edi+16*5], xmm5
+ movntps [edi+16*6], xmm6
+ movntps [edi+16*7], xmm7
+ add esi, 128
+ add edi, 128
+ dec ecx
+ jne .blastloop
+.skipblastloop:
+ mov ecx, [esp+12+16]
+ and ecx, 127
+ cmp ecx, 0
+ je .nooddballs
+.loop:
+ mov dl, [esi]
+ mov [edi], dl
+ inc esi
+ inc edi
+ dec ecx
+ jne .loop
+.nooddballs:
+ pop ebx
+ pop esi
+ pop edi
+ pop ebp
+ ret
+
end
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