2006-07-14 Dave Brolley <brolley@redhat.com>

2006-07-14  Dave Brolley  <brolley@redhat.com>

        * sid.scm (-op-gen-delayed-set-maybe-trace): If delay used, note the
        hardware or memory mode which was used.
        * sid-cpu.scm (hw-need-write-stack?): New function.
        (-gen-hw-stream-and-destream-fns): Compute stack-regs. Use it to
        identify hardware which uses write stacks.
        (useful-mode-names): Renamed to write-stack-memory-mode-names.
        Initialized to an empty list.
        (-gen-writestacks, -gen-reset-fn, -gen-unified-write-fn): Use
        hw-need-write-stack?.
        * hardware.scm (used-in-delay-rtl?): New member of <hardware-base>.
        (define-getters <hardware-base>): Define used-in-delay-rtl?.
        (used-in-delay-rtl?): New method of <hardware-base>.
        (hw-used-in-delay-rtl?): New function.