* snapshot of work toward more complete support of derived-operands

* snapshot of work toward more complete support of derived-operands

2000-08-22  Frank Ch. Eigler  <fche@redhat.com>

	* Makefile.in (DIST_COMMON): Regenerated.
	* ifield.scm (derived-ifield needed-iflds): New method.
	* iformat.scm (-ifmt-lookup-sfmt!): Use base ifields for
	sfmts built from derived-ifields.
	* operand.scm (-derived-parse-encoding): Give derived-ifield a fixed
	type symbol 'derived-ifield, not an unparseable string.
	* utils-sim.scm (op-needed-iflds) Handler 'derived-ifield case.
	(-sfmt-contents): Add tracing.

	From Doug Evans <dje@transmeta.com>:
	* sim.scm (operand cxmake-get): Result is a <c-expr>, not a string of
	C code.