opcodes/
	* mips-opc.c (mips_builtin_opcodes): Use "S,T" rather than "V,T" for
	ADDA.S, MULA.S and SUBA.S.
include/opcode/
	* mips.h: Document MIPS16 "I" opcode.

opcodes/
	* mips16-opc.c (mips16_opcodes): Use "I" for immediate operands
	in macros.

gas/
	* config/tc-mips.c (mips16_ip): Handle "I".
gas/
	* config/tc-mips.c (imm_expr, imm2_expr, offset_expr): Tweak commentary.
	(imm_reloc): Delete.
	(md_assemble): Remove imm_reloc handling.
	(mips_ip): Update commentary.  Use offset_expr and offset_reloc
	rather than imm_expr and imm_reloc for 'i', 'j' and 'u'.
	Use a temporary array rather than imm_reloc when parsing
	constant expressions.  Remove imm_reloc initialization.
	(mips16_ip): Update commentary.  Use offset_expr and offset_reloc
	for the relaxable field.  Use a relax_char variable to track the
	type of this field.  Remove imm_reloc initialization.
gas/
	* config/tc-mips.c (macro_build): Take an int for "C", "k", "\\"
	and "~".
	(macro): Update accordingly.
gas/
	* config/tc-mips.c (mips16_macro_build): Remove 'Y' case.
include/opcode/
	* mips.h (mips_operand_type, mips_reg_operand_type): New enums.
	(mips_operand, mips_int_operand, mips_mapped_int_operand)
	(mips_msb_operand, mips_reg_operand, mips_reg_pair_operand)
	(mips_pcrel_operand): New structures.
	(mips_insert_operand, mips_extract_operand, mips_signed_operand)
	(mips_decode_int_operand, mips_decode_pcrel_operand): New functions.
	(decode_mips_operand, decode_micromips_operand): Declare.

opcodes/
	* mips-formats.h: New file.
	* mips-opc.c: Include mips-formats.h.
	(reg_0_map): New static array.
	(decode_mips_operand): New function.
	* micromips-opc.c: Remove <stdio.h> include.  Include mips-formats.h.
	(reg_0_map, reg_28_map, reg_29_map, reg_31_map, reg_m16_map)
	(reg_mn_map, reg_q_map, reg_h_map1, reg_h_map2, int_b_map)
	(int_c_map): New static arrays.
	(decode_micromips_operand): New function.
	* mips-dis.c (micromips_to_32_reg_b_map, micromips_to_32_reg_c_map)
	(micromips_to_32_reg_d_map, micromips_to_32_reg_e_map)
	(micromips_to_32_reg_f_map, micromips_to_32_reg_g_map)
	(micromips_to_32_reg_h_map1, micromips_to_32_reg_h_map2)
	(micromips_to_32_reg_l_map, micromips_to_32_reg_m_map)
	(micromips_to_32_reg_n_map, micromips_to_32_reg_q_map)
	(micromips_imm_b_map, micromips_imm_c_map): Delete.
	(print_reg): New function.
	(mips_print_arg_state): New structure.
	(init_print_arg_state, print_insn_arg): New functions.
	(print_insn_args): Change interface and use mips_operand structures.
	Delete GET_OP_S.  Move GET_OP definition to...
	(print_insn_mips): ...here.  Update the call to print_insn_args.
	(print_insn_micromips): Use print_insn_args.

gas/
	* config/tc-mips.c (validate_mips_insn): Move further up file.
	Add insn_bits and decode_operand arguments.  Use the mips_operand
	fields to work out which bits an operand occupies.  Detect double
	definitions.
	(validate_micromips_insn): Move further up file.  Call into
	validate_mips_insn.
include/opcode/
	* mips.h (mips_operand_type): Add OP_ENTRY_EXIT_LIST and
	OP_SAVE_RESTORE_LIST.
	(decode_mips16_operand): Declare.

opcodes/
	* mips16-opc.c: Include mips-formats.h.
	(reg_0_map, reg_29_map, reg_31_map, reg_m16_map, reg32r_map): New
	static arrays.
	(decode_mips16_operand): New function.
	* mips-dis.c (mips16_to_32_reg_map, mips16_reg_names): Delete.
	(print_insn_arg): Handle OP_ENTRY_EXIT list.
	Abort for OP_SAVE_RESTORE_LIST.
	(print_mips16_insn_arg): Change interface.  Use mips_operand
	structures.  Delete GET_OP_S.  Move GET_OP definition to...
	(print_insn_mips16): ...here.  Call init_print_arg_state.
	Update the call to print_mips16_insn_arg.
gas/
	* config/tc-mips.c (insn_insert_operand): New function.
	(macro_build, mips16_macro_build): Put null character check
	in the for loop and convert continues to breaks.  Use operand
	structures to handle constant operands.
gas/
	* config/tc-mips.c (mips_oddfpreg_ok): Move further up file.
	Change return type to bfd_boolean.
	(report_bad_range, report_bad_field): New functions.
	(mips_arg_info): New structure.
	(match_const_int, convert_reg_type, check_regno, match_int_operand)
	(match_mapped_int_operand, match_msb_operand, match_reg_operand)
	(match_reg_pair_operand, match_pcrel_operand, match_perf_reg_operand)
	(match_addiusp_operand, match_clo_clz_dest_operand)
	(match_lwm_swm_list_operand, match_mdmx_imm_reg_operand)
	(match_pc_operand, match_tied_reg_operand, match_operand)
	(check_completed_insn): New functions, commented out for now.
gas/
	* config/tc-mips.c: Enable functions commented out in previous patch.
	(SKIP_SPACE_TABS): Move further up file.
	(mips32_to_micromips_reg_b_map, mips32_to_micromips_reg_c_map)
	(mips32_to_micromips_reg_d_map, mips32_to_micromips_reg_e_map)
	(ips32_to_micromips_reg_f_map, mips32_to_micromips_reg_g_map)
	(mips32_to_micromips_reg_l_map, mips32_to_micromips_reg_m_map)
	(mips32_to_micromips_reg_q_map, mips32_to_micromips_reg_n_map)
	(micromips_imm_b_map, micromips_imm_c_map): Delete.
	(mips_lookup_reg_pair): Delete.
	(macro): Use report_bad_range and report_bad_field.
	(mips_immed, expr_const_in_range): Delete.
	(mips_ip): Rewrite main parsing loop to use new functions.

gas/testsuite/
	* gas/mips/at-2.l: Remove duplicated $at warnings.
	* gas/mips/ext-ill.l, gas/mips/lui-1.l, gas/mips/mips32r2-ill.l,
	gas/mips/mips32r2-ill-nofp.l, gas/mips/mips32r2-ill-fp64.l,
	gas/mips/mips64r2-ill.l, gas/mips/octeon-ill.l: Update error
	messages.  Expect negative numbers to be printed as such,
	rather than as large unsigned positive numbers.
gas/
	* config/tc-mips.c (mips32_to_16_reg_map): Delete.
	(match_entry_exit_operand): New function.
	(match_save_restore_list_operand): Likewise.
	(match_operand): Use them.
	(check_absolute_expr): Delete.
	(mips16_ip): Rewrite main parsing loop to use mips_operands.
gas/
	* config/tc-mips.c (INSERT_BITS, INSERT_OPERAND, MIPS16_INSERT_OPERAND):
	Delete.
gas/
	* config/tc-mips.c (parse_float_constant): Split out from...
	(mips_ip): ...here.