X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseLib%2FIa32%2FDivU64x32Remainder.asm;h=e025b22c2d278fe8869cbffdc15c8abba7090094;hb=f734a10ab104f1072f94cab66a5489e0fd8fce8a;hp=a836e22d0db671c83f9fae605fe4570c06b2e918;hpb=3f566587aea64bb986866c7f69a6b82891bf59db;p=mirror_edk2.git

diff --git a/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm b/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm
index a836e22d0d..e025b22c2d 100644
--- a/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm
+++ b/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.asm
@@ -33,18 +33,18 @@
 ;   );
 ;------------------------------------------------------------------------------
 InternalMathDivRemU64x32    PROC
-    mov     ecx, [esp + 12]
-    mov     eax, [esp + 8]
+    mov     ecx, [esp + 12]         ; ecx <- divisor
+    mov     eax, [esp + 8]          ; eax <- dividend[32..63]
     xor     edx, edx
-    div     ecx
+    div     ecx                     ; eax <- quotient[32..63], edx <- remainder
     push    eax
-    mov     eax, [esp + 8]
-    div     ecx
-    mov     ecx, [esp + 20]
+    mov     eax, [esp + 8]          ; eax <- dividend[0..31]
+    div     ecx                     ; eax <- quotient[0..31]
+    mov     ecx, [esp + 20]         ; ecx <- Remainder
     jecxz   @F                      ; abandon remainder if Remainder == NULL
     mov     [ecx], edx
 @@:
-    pop     edx
+    pop     edx                     ; edx <- quotient[32..63]
     ret
 InternalMathDivRemU64x32    ENDP