diff options
Diffstat (limited to 'MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm')
| -rw-r--r-- | MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm index 5780647445..454d6234bf 100644 --- a/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm +++ b/MdePkg/Library/BaseMemoryLibMmx/X64/SetMem64.asm @@ -23,14 +23,21 @@ .code
-InternalMemSetMem64 PROC USES rdi
- DB 49h, 0fh, 6eh, 0c0h; movq mm0, r8 ; mm0 <- Value
- mov rax, rcx ; rax <- Buffer
- xchg rcx, rdx ; rcx <- Count
- mov rdi, rax
+;------------------------------------------------------------------------------
+; VOID *
+; InternalMemSetMem64 (
+; IN VOID *Buffer,
+; IN UINTN Count,
+; IN UINT64 Value
+; )
+;------------------------------------------------------------------------------
+InternalMemSetMem64 PROC
+ DB 49h, 0fh, 6eh, 0c0h ; movd mm0, r8 (Value)
+ mov rax, rcx ; rax <- Buffer
+ xchg rcx, rdx ; rcx <- Count
@@:
- DB 48h, 0fh, 0e7h, 07h; movntq [rdi], mm0
- add rdi, 8
+ DB 0fh, 0e7h, 02h ; movntq [rdx], mm0
+ add rdx, 8
loop @B
mfence
ret
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