* ppc-opc.c (VA, VB, VC, VD, VS, SIMM, UIMM, SHB): New macros, for

* ppc-opc.c (VA, VB, VC, VD, VS, SIMM, UIMM, SHB): New macros, for
vector unit operands.
(VX, VX_MASK, VXA, VXA_MASK, VXR, VXR_MASK): New macros, for vector
unit instruction formats.
(PPCVEC): New macro, mask for vector instructions.
(powerpc_operands): Add table entries for above operand types.
(powerpc_opcodes): Add table entries for vector instructions.

* ppc-dis.c (print_insn_big_powerpc): Add PPC_OPCODE_ALTIVEC to mask.
(print_insn_little_powerpc): Likewise.
(print_insn_powerpc): Prepend 'v' when printing vector registers.