Index: src/runtime/lookup-asm/lookup-asm-ppc-elf.S
==================================================================
--- src/runtime/lookup-asm/lookup-asm-ppc-elf.S
+++ src/runtime/lookup-asm/lookup-asm-ppc-elf.S
@@ -29,21 +29,16 @@
 
 	lwz	%r5, 0(%r3)
 	lwz	%r5, 32(%r5)
 
 .Lmain_\name:
-#ifdef OF_SELUID24
-	lbz	%r6, 1(%r4)
-#endif
-	lbz	%r7, 2(%r4)
-	lbz	%r8, 3(%r4)
-
-#ifdef OF_SELUID24
-	slwi	%r6, %r6, 2
-#endif
-	slwi	%r7, %r7, 2
-	slwi	%r8, %r8, 2
+	lwz	%r8, 0(%r4)
+#ifdef OF_SELUID24
+	rlwinm	%r6, %r8, -14, 0x3FC
+#endif
+	rlwinm	%r7, %r8, -6, 0x3FC
+	rlwinm	%r8, %r8, 2, 0x3FC
 
 #ifdef OF_SELUID24
 	lwzx	%r5, %r5, %r6
 #endif
 	lwzx	%r5, %r5, %r7

Index: src/runtime/lookup-asm/lookup-asm-ppc-macho.S
==================================================================
--- src/runtime/lookup-asm/lookup-asm-ppc-macho.S
+++ src/runtime/lookup-asm/lookup-asm-ppc-macho.S
@@ -29,21 +29,16 @@
 
 	lwz	r5, 0(r3)
 	lwz	r5, 32(r5)
 
 Lmain_$0:
-#ifdef OF_SELUID24
-	lbz	r6, 1(r4)
-#endif
-	lbz	r7, 2(r4)
-	lbz	r8, 3(r4)
-
-#ifdef OF_SELUID24
-	slwi	r6, r6, 2
-#endif
-	slwi	r7, r7, 2
-	slwi	r8, r8, 2
+	lwz	r8, 0(r4)
+#ifdef OF_SELUID24
+	rlwinm	r6, r8, -14, 0x3FC
+#endif
+	rlwinm	r7, r8, -6, 0x3FC
+	rlwinm	r8, r8, 2, 0x3FC
 
 #ifdef OF_SELUID24
 	lwzx	r5, r5, r6
 #endif
 	lwzx	r5, r5, r7