* alpha-opc.h (alpha_insn_set): VAX floating point opcode was
incorrectly defined as 0x16 when it should be 0x15.
(FLOAT_FORMAT_MASK): function code is 11 bits, not just 7 bits!
(alpha_insn_set): added cvtst and cvttq float ops. Also added
excb (exception barrier) which is defined in the Alpha
Architecture Handbook version 2.
* alpha-dis.c (print_insn_alpha): Fixed special-case decoding for
OPERATE_FORMAT_CODE type instructions. The bug caused mulq to be
disassembled as or, for example.
* alpha-opc.h (MEMORY_FUNCTION_FORMAT_MASK): added.
(alpha_insn_set): added definitions for VAX floating point
instructions (Unix compilers don't generate these, but handcoded
assembly might still use them).
* alpha-dis.c (print_insn_alpha): added support for disassembling
the miscellaneous instructions in the Alpha instruction set.
* alpha-opc.h (OSF_ASMCODE): define print pal-code names as defined in App C of
the Alpha Architecture Reference Manual
* alpha-dis.c: cleaned up output print stylized code forms as defined in App
A.4.3 of the Alpha Architecture Reference Manual
