sravan/system76-edk2
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1. Added comments to ASM files

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2. Fixed a bug in 64-bit AsmDisablePaging64(), which may cause a #GP exception.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2206 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
bxing
2007-01-10 06:57:04 +00:00
parent 741fb36417
commit a9a812a0ed
45 changed files with 184 additions and 77 deletions
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14
MdePkg/Library/BaseLib/Ia32/MultU64x64.asm
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@@ -32,15 +32,15 @@
; );
;------------------------------------------------------------------------------
InternalMathMultU64x64 PROC USES ebx
mov ebx, [esp + 8]
mov edx, [esp + 16]
mov ebx, [esp + 8] ; ebx <- M1[0..31]
mov edx, [esp + 16] ; edx <- M2[0..31]
mov ecx, ebx
mov eax, edx
imul ebx, [esp + 20]
imul edx, [esp + 12]
add ebx, edx
mul ecx
add edx, ebx
imul ebx, [esp + 20] ; ebx <- M1[0..31] * M2[32..63]
imul edx, [esp + 12] ; edx <- M1[32..63] * M2[0..31]
add ebx, edx ; carries are abandoned
mul ecx ; edx:eax <- M1[0..31] * M2[0..31]
add edx, ebx ; carries are abandoned
ret
InternalMathMultU64x64 ENDP