diff --git a/src/southbridge/amd/agesa/hudson/acpi/fch.asl b/src/southbridge/amd/agesa/hudson/acpi/fch.asl
index 321796e40e..7777d7231a 100644
--- a/src/southbridge/amd/agesa/hudson/acpi/fch.asl
+++ b/src/southbridge/amd/agesa/hudson/acpi/fch.asl
@@ -7,13 +7,13 @@
 Method(_OSC,4)
 {
 	/* Check for proper PCI/PCIe UUID */
-	If(LEqual(Arg0,ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766")))
+	If(Arg0 == ToUUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))
 	{
 		/* Let OS control everything */
 		Return (Arg3)
 	} Else {
 		CreateDWordField(Arg3,0,CDW1)
-		Or(CDW1,4,CDW1)	// Unrecognized UUID
+		CDW1 |= 4	// Unrecognized UUID
 		Return(Arg3)
 	}
 }
@@ -124,10 +124,10 @@ Method(_CRS, 0) {
 	 * 32bit (0x00000000 - TOM1) will wrap and give the same
 	 * result as 64bit (0x100000000 - TOM1).
 	 */
-	Store(TOM1, MM1B)
-	ShiftLeft(0x10000000, 4, Local0)
-	Subtract(Local0, TOM1, Local0)
-	Store(Local0, MM1L)
+	MM1B = TOM1
+	Local0 = 0x10000000 << 4
+	Local0 -= TOM1
+	MM1L = Local0
 
 	Return(CRES) /* note to change the Name buffer */
 } /* end of Method(_SB.PCI0._CRS) */
@@ -170,20 +170,20 @@ Method(_INI, 0) {
 
 Method(OSFL, 0){
 
-	if (LNotEqual(OSVR, Ones)) {Return(OSVR)}	/* OS version was already detected */
+	if (OSVR != Ones) {Return(OSVR)}	/* OS version was already detected */
 
 	if (CondRefOf(\_OSI))
 	{
-		Store(1, OSVR)					/* Assume some form of XP */
+		OSVR = 1					/* Assume some form of XP */
 		if (\_OSI("Windows 2006"))		/* Vista */
 		{
-			Store(2, OSVR)
+			OSVR = 2
 		}
 	} else {
 		If(WCMP(\_OS,"Linux")) {
-			Store(3, OSVR)				/* Linux */
+			OSVR = 3				/* Linux */
 		} Else {
-			Store(4, OSVR)				/* Gotta be WinCE */
+			OSVR = 4				/* Gotta be WinCE */
 		}
 	}
 	Return(OSVR)