src/cgen ChangeLog decode.scm utils-sim.scm ut ...

[devans@sourceware.org]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	devans@sourceware.org	2009-10-24 00:01:26

Modified files:
	cgen           : ChangeLog decode.scm utils-sim.scm utils.scm 

Log message:
	* decode.scm: Tweak various comments.
	(/opcode-slots): Add FIXME.
	(/build-decode-table-guts): Add assert.
	* utils-sim.scm (/gen-set-itype-and-extract): New function.
	(/gen-bracketed-set-itype-and-extract): New function.
	(/gen-decode-default-entry): Rewrite.
	(/table-guts-to-mask, /all-opcode-bits-used?): New functions.
	(/gen-decode-insn-entry): New arg table-guts-thus-far, all callers
	updated.  Don't unnecessarily emit check for whether all opcode bits
	have been examined.
	(/gen-decode-expr-set-itype): Delete.
	(/gen-decode-expr-entry): Update.
	(/gen-decode-table-entry): New arg table-guts-thus-far, all callers
	updated.  Keep track of decoder tables used thus far.
	(/gen-decoder-switch): Ditto.
	* utils.scm (word-bit-value): New function.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/cgen/ChangeLog.diff?cvsroot=src&r1=1.399&r2=1.400
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/cgen/decode.scm.diff?cvsroot=src&r1=1.14&r2=1.15
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/cgen/utils-sim.scm.diff?cvsroot=src&r1=1.19&r2=1.20
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/cgen/utils.scm.diff?cvsroot=src&r1=1.32&r2=1.33