* major sim decoder improvement

* major sim decoder improvement
* minor diagnostic tweaks

2000-11-10  Frank Ch. Eigler  <fche@redhat.com>

	* decode.scm (-distinguishing-bit-population): Significantly
	improve popularity heuristic.  Renamed from
	(-mask-bit-population): Gone.
	(-population-above-threshold): Sort new bit numbers in order of
	popularity.
	(-population-top-few): Allow up to three more bits to be selected
	than requested.  Correct selection order to prefer better bits.
	Correct bug in fewer-than-requested case.  Keep threshold as
	floating-point.
	(decode-best-get-bits): Pass also the insn-values.

	* utils-sim.scm (-gen-decoder-switch): Add comment suggesting a
	future optimization.

	* utils.scm (message): Format nested lists better.