Update x64 version of InitializeFpu.asm to use raw op-codes instead of 'finit' so that some early version of MS assemblers can support.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9496 6f19259b-4bc3-4df7-8a09-765794883524
2009-11-30 06:28:42 +00:00 · 2009-11-30 06:28:42 +00:00 · 86973faa31
parent 0d34b1cfc7
commit 86973faa31
1 changed files with 4 additions and 1 deletions
--- a/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.asm
+++ b/UefiCpuPkg/Library/BaseUefiCpuLib/X64/InitializeFpu.asm
@ -41,7 +41,10 @@ InitializeFloatingPointUnits PROC PUBLIC
    ;
    ; Initialize floating point units
    ;
-    finit
+    ; The following opcodes stand for instruction 'finit' 
+    ; to be supported by some 64-bit assemblers
+    ;
+    DB      9Bh, 0DBh, 0E3h
    fldcw   mFpuControlWord
    
    ;