* config/tc-alpha.c (machine): New variable.
(load_insn): New macro.
(load_insn_table): New function.
(md_begin): Call load_insn_table, once for basic instructions and
once for appropriate PAL instruction table.
(md_parse_option): Set `machine' based on -m##### arguments.
* config/alpha-opcode.h (alpha_pal21064_opcodes): Split out from alpha_opcodes.
(alpha_pal21164_opcodes): New table.
(NUM21064OPCODES, NUM21164OPCODES): New macros.
* config/alpha-opcode.h (ldif, ldig, ldis, ldit): New patterns.
* config/tc-alpha.c (lit8_sec, lit4_sec, lit8_sym, lit4_sym): New variables.
(create_literal_section): New function.
(create_lita_section): Now a macro.
(get_lit8_offset, get_lit4_offset): New functions.
(maybe_set_gp): New function.
(select_gp_value): Call it.
(load_expression): Preserve addend if symbol is a section symbol.
(alpha_ip): Handle new operand type `F' for floating-point constants; store
them in .lit{4,8} sections.
(alpha_ip, case 'G'): Emit LITUSE relocations for symbol exprs.
Still to do:
- fix floating-point handling
- figure out if we can adapt to using ../opcodes/alpha-opc.h
- gcc bootstrap testing
- 32-bit mode support?
- test cross-assembly
