RE: FW: New Mantis Issue #667 for V-1364

From: Dave Rich (dave_59@yahoo.com)
Date: Thu Apr 14 2005 - 23:49:55 PDT

  • Next message: Steven Sharp: "Re: FW: New Mantis Issue #667 for V-1364"

    Shalom,

    I think Matt was using the term 'gate' to mean the MOS primitives.

    However, I now believe that all primitives (all UDPs and built-ins)
    need to be evaluated at least once at time 0. The sequential UDPs need
    to be evaluated for level sensitive behavior.

    Not to open another can of worms, but the initialization of wires
    connected to bi-directional MOS primitives is beyond the scope of the
    LRM.

    However, I now believe that all primitives and
    --- Shalom.Bresticker@freescale.com wrote:
    > Matt,
    >
    > I don't know what you mean by "combinational built-in primitives" vs.
    > "built-in gates". All of the "built-in gates" (as far as I remember)
    > are
    > "combinational" in the sense that their outputs are functions of
    > their
    > current inputs only. They have no memory.
    >
    > Gates were explicitly mentioned in my original ballot comment, I
    > think.
    > I just forgot to re-mention them later on.
    > There is no essential difference between a gate and a continuous
    > assignment (except for strength reduction).
    >
    > Shalom
    >
    >
    > On Thu, 14 Apr 2005, Maidment, Matthew R wrote:
    >
    > > I can agree that combinational construct is not defined.
    > > It was meant to capture those processes whose semantics
    > > represent combinational logic. The combinational primitives
    > > was an attempt to cover
    > >
    > > combinational UDPs
    > > combinational built-in primitives
    > > continuous assignments
    > >
    > > It does not include sequential primities or many/most
    > > of the built-in gates.
    >
    > --
    > Shalom.Bresticker @freescale.com Tel: +972 9
    > 9522268
    > Freescale Semiconductor Israel, Ltd. Fax: +972 9
    > 9522890
    > POB 2208, Herzlia 46120, ISRAEL Cell: +972 50
    > 5441478
    >
    > [ ]Freescale Internal Use Only [ ]Freescale Confidential
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    >
    >

                    
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