1. Added comments to ASM files

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / RShiftU64.asm

diff --git a/MdePkg/Library/BaseLib/Ia32/RShiftU64.asm b/MdePkg/Library/BaseLib/Ia32/RShiftU64.asm
index 793a8f988fdf28a7996ade12fc18ef24b38d4d87..faa4e9677112ed17be200d3b60ec396c3e6d7e38 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/RShiftU64.asm
+++ b/MdePkg/Library/BaseLib/Ia32/RShiftU64.asm
@@ -32,10 +32,10 @@
 ;   );\r
 ;------------------------------------------------------------------------------\r
 InternalMathRShiftU64   PROC\r
-    mov     cl, [esp + 12]\r
+    mov     cl, [esp + 12]              ; cl <- Count\r
     xor     edx, edx\r
     mov     eax, [esp + 8]\r
-    test    cl, 32\r
+    test    cl, 32                      ; Count >= 32?\r
     cmovz   edx, eax\r
     cmovz   eax, [esp + 4]\r
     shrd    eax, edx, cl\r