Correct one minor instruction to clear the lower 4 bits of r11.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8391 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdePkg/Library/BaseLib/X64/Thunk16.S b/MdePkg/Library/BaseLib/X64/Thunk16.S
index 3f94759ceff22c7b38b535c13d69b8fce140bf4e..501a9e9d8b9e7e0f0f9bfb92a67f02f02ad2d128 100644 (file)
--- a/MdePkg/Library/BaseLib/X64/Thunk16.S
+++ b/MdePkg/Library/BaseLib/X64/Thunk16.S
@@ -267,7 +267,7 @@ ASM_PFX(InternalAsmThunk16):
     sgdt    0x60(%rsp)                  # save GDT stack in argument space\r
     movzwq  0x60(%rsp), %r10            # r10 <- GDT limit \r
     lea     ((ASM_PFX(InternalAsmThunk16) - SavedCr4) + 0xf)(%rcx), %r11 \r
-    andl    $0xfffffff0, r11            # r11 <- 16-byte aligned shadowed GDT table in real mode buffer      \r
+    andq    $0xfffffff0, %r11            # r11 <- 16-byte aligned shadowed GDT table in real mode buffer      \r
     \r
     movw    %r10w, (SavedGdt - SavedCr4)(%rcx)       # save the limit of shadowed GDT table\r
     movq    %r11, (SavedGdt - SavedCr4 + 0x2)(%rcx)  # save the base address of shadowed GDT table\r