* ppc-opc.c (insert_sprg, extract_sprg): New Functions.
(powerpc_operands <SPRG>): Call the above. Bit field is 5 bits.
(SPRG_MASK): Delete.
(XSPRG_MASK): Mask off extra bits now part of sprg field.
(powerpc_opcodes): Asjust mfsprg and mtsprg to suit new mask. Move
mfsprg4..7 after msprg and consolidate.
gas/testsuite
* gas/ppc/booke.s: Add new m[t,f]sprg testcases.
* gas/ppc/booke.d: Likewise.
* ppc-opc.c (MO): Make optional.
(RAO, RSO, SHO): New optional forms of RA, RS, SH operands.
(tlbwe): Accept for both PPC403 and BOOKE. Make all operands optional.
gas:
* tc-ppc.c (md_assemble): Rewrite comment about optional operands
to indicate that 'all or none' is also handled. Pluralize a
word in another comment.
gas/testsuite:
* gas/ppc/booke.s: Add two more forms of the mbar instruction
and three forms of the tlbwe instruction.
* gas/ppc/booke.d: Update to match.
(FXM4): Define.
(insert_fxm): New function, used by both FXM and FXM4.
(extract_fxm): Likewise.
(XFXFXM_MASK): Remove 1 << 20 term.
(powerpc_opcodes): Add Power4 version of "mfcr". Simplify "mtcr" mask.
* ppc-opc.c (PMRN): Remove.
(RA): Set to NB + 1.
(powerpc_opcodes): Change PMRN to SPR.
Change all RD to RS.
Change mftb to look like mftbl.
Move mftb before mftbl.
Add mfbbtar.
Add mtbbtar.
Change mfpmr to use PMR.
Change mtpmr to use PMR.
(RD): Remove.
(insert_ev2): Fix mask and shift.
(extract_ev2): Same.
(insert_ev4): Same.
(extract_ev4): Same.
(PMR): Define.
(extract_pmrn): Remove.
(insert_pmrn): Remove.
