2008-11-27  Alan Modra  <amodra@bigpond.net.au>

	* ppc-opc.c (extract_sprg): Correct operand range check.

Index: opcodes/ppc-opc.c
===================================================================
RCS file: /cvs/src/src/opcodes/ppc-opc.c,v
retrieving revision 1.110
retrieving revision 1.111
diff -u -a -p -u -p -a -r1.110 -r1.111
--- opcodes/ppc-opc.c	14 Aug 2008 13:56:00 -0000	1.110
+++ opcodes/ppc-opc.c	27 Nov 2008 10:47:23 -0000	1.111
@@ -1281,10 +1281,10 @@ extract_sprg (unsigned long insn,
 
   /* mfsprg can use 260..263 and 272..279.  mtsprg only uses spr 272..279
      If not BOOKE or 405, then both use only 272..275.  */
-  if (val <= 3
-      || (val < 0x10 && (insn & 0x100) != 0)
-      || (val - 0x10 > 3
-	  && (dialect & (PPC_OPCODE_BOOKE | PPC_OPCODE_403)) == 0))
+  if ((val - 0x10 > 3 && (dialect & (PPC_OPCODE_BOOKE | PPC_OPCODE_405)) == 0)
+      || (val - 0x10 > 7 && (insn & 0x100) != 0)
+      || val <= 3
+      || (val & 8) != 0)
     *invalid = 1;
   return val & 7;
 }