Modules cleanup.

[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / WriteDr5.asm

diff --git a/MdePkg/Library/BaseLib/X64/WriteDr5.asm b/MdePkg/Library/BaseLib/X64/WriteDr5.asm
index 6d454d5267740e61364799a06c98cdea9888c06e..86009c32871d343cb61e728b7065c3e769d1e8ec 100644 (file)
--- a/MdePkg/Library/BaseLib/X64/WriteDr5.asm
+++ b/MdePkg/Library/BaseLib/X64/WriteDr5.asm
@@ -26,12 +26,17 @@
 ;------------------------------------------------------------------------------\r
 ; UINTN\r
 ; EFIAPI\r
-; AsmWriteDr5 (\r
-;   VOID\r
+; AsmWriteDr6 (\r
+;   IN UINTN Value\r
 ;   );\r
 ;------------------------------------------------------------------------------\r
 AsmWriteDr5 PROC\r
+    ;\r
+    ; There's no obvious reason to access this register, since it's aliased to\r
+    ; DR7 when DE=0 or an exception generated when DE=1\r
+    ;\r
     DB      0fh, 23h, 0e9h\r
+    mov     rax, rcx\r
     ret\r
 AsmWriteDr5 ENDP\r
 \r