rlwinm or similar instructions can specify a bitmask rather than the
start and end bits. Of course, the mask can cover all 32 bits. I
don't know what I was thinking to write 0xff.
opcodes/
PR 4436
* ppc-opc.c (powerpc_operands): Correct bitm for second entry of MBE.
gas/
PR 4436
* config/tc-ppc.c (ppc_insert_operand): Disable range check if
min > max.
Index: opcodes/ppc-opc.c
===================================================================
RCS file: /cvs/src/src/opcodes/ppc-opc.c,v
retrieving revision 1.94
diff -u -p -r1.94 ppc-opc.c
--- opcodes/ppc-opc.c 21 Apr 2007 05:14:21 -0000 1.94
+++ opcodes/ppc-opc.c 30 Apr 2007 00:15:52 -0000
@@ -317,7 +317,7 @@ const struct powerpc_operand powerpc_ope
description in opcode/ppc.h for what this means. */
#define MBE ME + 1
{ 0x1f, 6, NULL, NULL, PPC_OPERAND_OPTIONAL | PPC_OPERAND_NEXT },
- { 0xff, 0, insert_mbe, extract_mbe, 0 },
+ { -1, 0, insert_mbe, extract_mbe, 0 },
/* The MB or ME field in an MD or MDS form instruction. The high
bit is wrapped to the low end. */
Index: gas/config/tc-ppc.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-ppc.c,v
retrieving revision 1.119
diff -u -p -r1.119 tc-ppc.c
--- gas/config/tc-ppc.c 21 Apr 2007 06:54:56 -0000 1.119
+++ gas/config/tc-ppc.c 30 Apr 2007 00:15:55 -0000
@@ -1516,7 +1516,7 @@ ppc_insert_operand (insn, operand, val,
{
long min, max, right;
offsetT test;
-
+
max = operand->bitm;
right = max & -max;
min = 0;
@@ -1554,8 +1554,7 @@ ppc_insert_operand (insn, operand, val,
else
test = val;
- if (test < (offsetT) min
- || test > (offsetT) max
+ if ((min <= max && (test < (offsetT) min || test > (offsetT) max))
|| (test & (right - 1)) != 0)
as_bad_value_out_of_range (_("operand"),
test, (offsetT) min, (offsetT) max, file, line);
--
Alan Modra
IBM OzLabs - Linux Technology Centre