OvmfPkg XenBusDxe: Convert Ia32/TestAndClearBit.asm to NASM

The BaseTools/Scripts/ConvertMasmToNasm.py script was used to convert
Ia32/TestAndClearBit.asm to Ia32/TestAndClearBit.nasm

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16316 6f19259b-4bc3-4df7-8a09-765794883524

OvmfPkg/XenBusDxe/Ia32/TestAndClearBit.S

@@ -1,13 +0,0 @@
-# INT32
-# EFIAPI
-# TestAndClearBit (
-#   IN  INT32 Bit,
-#   IN  volatile VOID* Address
-#   );
-ASM_GLOBAL ASM_PFX(TestAndClearBit)
-ASM_PFX(TestAndClearBit):
-  mov 4(%esp), %ecx
-  mov 8(%esp), %edx
-  lock btrl %ecx, (%edx)
-  sbbl %eax, %eax
-  ret

OvmfPkg/XenBusDxe/Ia32/TestAndClearBit.nasm

@@ -1,4 +1,4 @@
-.code
+SECTION .text
 
 ; INT32
 ; EFIAPI
@@ -6,12 +6,11 @@
 ;   IN  INT32 Bit,
 ;   IN  volatile VOID* Address
 ;   );
-TestAndClearBit PROC
+global ASM_PFX(TestAndClearBit)
+ASM_PFX(TestAndClearBit):
   mov ecx, [esp + 4]
   mov edx, [esp + 8]
   lock btr [edx], ecx
   sbb eax, eax
   ret
-TestAndClearBit ENDP
 
-END