diff options
Diffstat (limited to 'MdePkg/Library/BaseLib/X64/WriteDr5.asm')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/WriteDr5.asm | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/WriteDr5.asm b/MdePkg/Library/BaseLib/X64/WriteDr5.asm index 91eeef20e3..86009c3287 100644 --- a/MdePkg/Library/BaseLib/X64/WriteDr5.asm +++ b/MdePkg/Library/BaseLib/X64/WriteDr5.asm @@ -31,6 +31,10 @@ ; );
;------------------------------------------------------------------------------
AsmWriteDr5 PROC
+ ;
+ ; There's no obvious reason to access this register, since it's aliased to
+ ; DR7 when DE=0 or an exception generated when DE=1
+ ;
DB 0fh, 23h, 0e9h
mov rax, rcx
ret
|