Wed Jun 3 18:21:56 1998 Alan Modra <alan@spri.levels.unisa.edu.au>

Wed Jun  3 18:21:56 1998  Alan Modra  <alan@spri.levels.unisa.edu.au>

	* config/tc-i386.c (SCALE1_WHEN_NO_INDEX): Define.
	(ebp, esp): Remove static variables.
	(MATCH): Remove test for InOutPortReg.
	(i386_operand): Properly handle InOutPortReg here instead.
	Disallows `inb (%dx,2)', `inb %es:(%dx)' and `mov (%dx),%ax'
	(md_assemble): Simplify and correct modrm and sib generation.
	(i386_operand): Add warning for scale without index.
	Rewrite checks for valid base/index combinations.