Remove trailing "(bad)" entries and replace { "(bad)", { XX } }

Remove trailing "(bad)" entries and replace { "(bad)", { XX } }
with { Bad_Opcode }.

2010-01-24  H.J. Lu  <hongjiu.lu@intel.com>

	* i386-dis.c (Bad_Opcode): New.
	(bad_opcode): Likewise.
	(dis386): Replace { "(bad)", { XX } } with { Bad_Opcode }.
	(dis386_twobyte): Likewise.
	(reg_table): Likewise.
	(prefix_table): Likewise.
	(x86_64_table): Likewise.
	(vex_len_table): Likewise.
	(vex_w_table): Likewise.
	(mod_table): Likewise.
	(rm_table): Likewise.
	(float_reg): Likewise.
	(reg_table): Remove trailing "(bad)" entries.
	(prefix_table): Likewise.
	(x86_64_table): Likewise.
	(vex_len_table): Likewise.
	(vex_w_table): Likewise.
	(mod_table): Likewise.
	(rm_table): Likewise.
	(get_valid_dis386): Handle bytemode 0.