Re: enhancement/287: `compatibility - backward compatibilitycompiler directives

From: Gordon Vreugdenhil (gvreugde@synopsys.com)
Date: Tue Feb 25 2003 - 10:10:02 PST

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    The following reply was made to PR enhancement/287; it has been noted by GNATS.

    From: Gordon Vreugdenhil <gvreugde@Synopsys.COM>
    To: Stefen Boyd <stefen@boyd.com>
    Cc: etf-bugs@boyd.com
    Subject: Re: enhancement/287: `compatibility - backward compatibilitycompiler
     directives
    Date: Tue, 25 Feb 2003 10:00:29 -0800

     Just as a side note, not all compatibility issues can be resolved
     by `compatibility. As the first example that came to mind,
     V2K limits the number of MCDs to 30 versus 31 since the high-order
     bit now indicates whether the value is an MCD or FD. That is
     a global issue that can't be locally resolved since and MCD/FD
     is a value that can end up anywhere.
     
     Gord.
     --
     ----------------------------------------------------------------------
     Gord Vreugdenhil gvreugde@synopsys.com
     Staff Engineer, VCS (Verification Tech. Group) (503) 547-6054
     Synopsys Inc., Beaverton OR

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