Subject: Re: Abstract for DVCon (HDLCon) paper on Numeric_Std
From: David Bishop (david.bishop@kodak.com)
Date: Tue Oct 08 2002 - 06:05:20 PDT
Jim Lewis wrote:
>
> Hi,
> Below is my first cut at an abstract for enhancements
> to numeric_std. Comments? The final submission date is
> Oct 15th. Note, I plan on updating this as we move
> along with the proposals.
>
> ====================================================================
>
> Enhancements to VHDL's Arithmetic Package
>
> VHDL has rich capability for doing signed and unsigned math.
> Success in using these types depends on understanding the
> types and overloading operators provided the package Numeric_Std
> (IEEE Standard 1076.3).
>
> Currently enhancements for numeric_std are being worked on/finalized
> for the next draft of the standard. These enhancements include,
> logical reduction functions for unsigned and signed,
> overloaded array/scalar logic operations for unsigned and signed,
> overloaded array/scalar addition operations for unsigned and signed,
> functions TO_X01, TO_X01Z, TO_UX01, IS_X for unsigned and signed.
>
> This paper will provide details about the new features of Numeric_Std
> as well as provide some rules of thumb for remembering the
> overloading. This paper be given in a mini-tutorial format to
> help those who are not currently using Numeric_Std to make the
> transition.
TextIO packages, and floating point (my paper) could be added too.
Should also say something about the 1164 updates, unless Peter is going
to do something.
-- David W. Bishop dbishop@vhdl.org
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