* arc-opc.c (MULTSHIFT operand): Delete.

	* arc-opc.c (MULTSHIFT operand): Delete.
	(UNSIGNED, SATURATION): New operands.
	(mac, mul, mul64, mulu64): New insns.
	(ext. asl, asr, lsr, ror): Only available on host and graphics cpus.
	(padc, padd, pmov, pand, psbc, psub, swap): New insns.
	(host,graphics,audio extended and auxiliary regs): Define.
	(ss, sc, mh, ml): New suffixes.
	(arc_opcode_supported, arc_opval_supported): New functions.
	(insert_multshift, extract_multshift): Deleted.