Properly sign-extend byte.

Properly sign-extend byte.

gas/testsuite/

2011-01-18  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/intel.d: Updated.
	* gas/i386/opcode-intel.d: Likewise.
	* gas/i386/opcode-suffix.d: Likewise.
	* gas/i386/opcode.d: Likewise.

opcodes/

2011-01-18  H.J. Lu  <hongjiu.lu@intel.com>

	* i386-dis.c (sIbT): New.
	(b_T_mode): Likewise.
	(dis386): Replace sIb with sIbT on "pushT".
	(x86_64_table): Replace sIb with Ib on "aam" and "aad".
	(OP_sI): Handle b_T_mode.  Properly sign-extend byte.