@@ -150,11 +150,11 @@
 	__asm__ (
 	    "lhbrx	%0, 0, %1"
 	    : "=r"(i)
 	    : "r"(&i), "m"(i)
 	);
-#elif defined(OF_ARM_ASM)
+#elif defined(OF_ARM_ASM) && defined(__ARM_ARCH_6__)
 	__asm__ (
 	    "rev16	%0, %0"
 	    : "=r"(i)
 	    : "0"(i)
 	);
@@ -178,11 +178,11 @@
 	__asm__ (
 	    "lwbrx	%0, 0, %1"
 	    : "=r"(i)
 	    : "r"(&i), "m"(i)
 	);
-#elif defined(OF_ARM_ASM)
+#elif defined(OF_ARM_ASM) && defined(__ARM_ARCH_6__)
 	__asm__ (
 	    "rev	%0, %0"
 	    : "=r"(i)
 	    : "0"(i)
 	);