diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S | 41 |
1 files changed, 17 insertions, 24 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S b/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S index 27fd6174bd..8281652ad9 100644 --- a/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S +++ b/MdePkg/Library/BaseMemoryLibMmx/Ia32/SetMem32.S @@ -21,39 +21,32 @@ # #------------------------------------------------------------------------------ - .686: - #.MODEL flat,C - .xmm: - .code: +.global _InternalMemSetMem32 #------------------------------------------------------------------------------ # VOID * -# _mem_SetMem32 ( +# InternalMemSetMem32 ( # IN VOID *Buffer, # IN UINTN Count, # IN UINT32 Value # ) #------------------------------------------------------------------------------ -.global _InternalMemSetMem32 _InternalMemSetMem32: - push %edi - movl 12(%esp), %edx - movl 8(%esp), %edi - movl %edx, %ecx + movl 4(%esp), %eax + movl 8(%esp), %ecx + movd 12(%esp), %mm0 shrl %ecx - movd 16(%esp), %mm0 - movl %edi, %eax - jz @SetDwords - pshufw $0x44, %mm0, %mm0 -L0: - movntq %mm0, (%edi) - addl $8, %edi - loopl L0 - mfence -@SetDwords: - testb $1, %dl + movl %eax, %edx jz L1 - movd %mm0, (%edi) -L1: - pop %edi + movq %mm0, %mm1 + psllq $32, %mm1 + por %mm1, %mm0 +L0: + movq %mm0, (%edx) + lea 8(%edx), %edx + loopl L0 +L1: + jnc L2 + movd %mm0, (%edx) +L2: ret |