X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseLib%2FIa32%2FARShiftU64.c;h=dab93257eec87b17fedb897340da5306c2266c65;hb=42eedea958591087603bbacd1c2227d2494026af;hp=fb5f4282bb21fe495893f4af7e3da234227883f3;hpb=0f82bd55142af193e669e76fcaf02f8d835f3f39;p=mirror_edk2.git

diff --git a/MdePkg/Library/BaseLib/Ia32/ARShiftU64.c b/MdePkg/Library/BaseLib/Ia32/ARShiftU64.c
index fb5f4282bb..dab93257ee 100644
--- a/MdePkg/Library/BaseLib/Ia32/ARShiftU64.c
+++ b/MdePkg/Library/BaseLib/Ia32/ARShiftU64.c
@@ -17,6 +17,19 @@
 //
 
 
+/**
+  Shifts a 64-bit integer right between 0 and 63 bits. The high bits
+  are filled with original integer's bit 63. The shifted value is returned.
+
+  This function shifts the 64-bit value Operand to the right by Count bits. The
+  high Count bits are set to bit 63 of Operand.  The shifted value is returned.
+
+  @param  Operand The 64-bit operand to shift right.
+  @param  Count   The number of bits to shift right.
+
+  @return Operand arithmetically shifted right by Count
+
+**/
 UINT64
 EFIAPI
 InternalMathARShiftU64 (