VHDL-2008
Since the publication of the first IEEE standard in 1987 several revised
versions have appeared. The first, in 1993, had the most extensive changes. VHDL
2000 Edition introduced protected types and VHDL-2002 contains mainly minor
changes. VHDL-2008 is the name of the new version of VHDL. As with the earlier revisions, this doesn’t radically alter the
language, but it does provide a wider set of modifications than previously.
A draft of the proposed revision (version 4.0) was delivered by Accellera to
the IEEE in 2008. The standard is now available from the IEEE and is known as IEEE Std. 1076-2008.
Support for some of these changes has begun to appear in simulators. Widespread
support is only expected once the IEEE standard is published, and tool vendors
consider that there is sufficient demand for the changes from their customers.
Summary of Changes to VHDL in VHDL-2008
The changes to VHDL that are proposed in VHDL-2008 fall broadly into these categories:
- VHDL is enhanced significantly in some areas
- Changes that make VHDL (slightly) less cumbersome to use
- Existing separate VHDL standards are incorporated into the LRM
- A number of smaller enhancements
See Also
You will find further information about the standardization of VHDL-2008 using these links:
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