Subject: Re: Annex A syntax updates
From: Graham Helwig (ghelwig@asc.corp.mot.com)
Date: Mon Jun 16 2003 - 00:08:31 PDT
Hello,
Thanks Martin and Kevin for your feedback. The syntax in annex A should
contain only the new AMS syntax and any 1995/2001 syntax that has been
extended or modified. The new AMS syntax items in annex A should have
unique names w.r.t. the 1995/2001 syntax items (currently it does not).
Kevin, yes the 1995/2001 syntax items can be code coded, however the
differences will not be visible on black and white prints of the
document. The differences would be visible if underlining or italics
(assuming all italic prefixes to identifiers are removed) is used.
In the PDF attached, annex A has been reorganized (no syntax have been
changed). The change bar shows where the new sections have been added
and where the syntax has been moved to. We can discuss these changes and
any further changes during the next conference call.
Regards
Graham
Graham Helwig wrote:
>
> Hello,
>
> As part of the Verilog-AMS LRM 2.2 work, the analog syntax problems need
> to be fixed. Below is a plan to fix the analog syntax. This will be
> discussed in the next committee meeting.
>
> The major stages are:
>
> 1) Reorganize the syntax within annex A into a more readable and
> navigable format. This only involves moving the syntax around, the
> syntax itself will not be changed.
> 2) Once the reorganization is complete, then review the syntax and
> clean-up any ambiguous, incomplete or wrong syntax.
> 3) Go through the syntax in each section of the LRM and synchronize it
> with the up-to-date syntax in annex A.
>
> For stage 1, the proposed new structure for Annex A is below. Any
> suggestions or improvements are welcome.
>
> A.1 Source text
> A.1.1 Module declaration
> A.1.2 UDP declaration
> A.1.3 Nature definition
> A.1.4 Discipline definition
> A.1.5 Connectrule specification
>
> A.2 Module declarations
> A.2.1 Port declarations
> A.2.2 Parameters declarations
> A.2.3 Genvar declarations
> A.2.4 Branch declarations
> A.2.5 Net declarations
> A.2.6 Variable declarations
> A.2.7 Analog function declarations
>
> A.3 Module constructs
> A.3.1 Module instantiations
> A.3.2 UDP instantiations
> A.3.3 Gate instantiations
> A.3.4 Specify block
> A.3.5 Initial and always blocks
> A.3.6 Analog block
> A.3.7 Continuous assignment
> A.3.8 Default parameter overrides
>
> A.4 Analog behavioural statements
> A.4.1 Contribution and assignment statements
> A.4.2 Timing control statements
> A.4.3 Conditional statements
> A.4.4 Case statements
> A.4.5 Looping statements
> A.4.6 Analog system tasks
>
> A.5 Module expressions
> A.5.1 Constant expression
> A.5.2 Expression
> A.5.3 Genvar expression
> A.5.4 Analog expression
> A.5.4.1 Concatenations
> A.5.4.2 Analog function calls
> A.5.4.3 Analog system functions
> A.5.4.4 Analog probes
> A.5.4.5 Analog operators
> A.5.4.6 Accessing nature attributes
> A.5.4.7 Operators
> A.5.4.8 Primaries
> A.5.4.9 Numbers
> A.5.4.10 Strings
>
> A.6 Module event expressions
> A.6.1 Analog event expressions
> A.6.2 Digital event expressions
>
> A.7 General
> A.7.1 Comments
> A.7.2 Identifiers
> A.7.3 White space
>
> NOTE:
> - A.1.1: contains module, macromodule and connectmodule definitions
> - A.1.2: present for readability. For example:
>
> A.1.2 UDP declaration
>
> udp_declaration ::=
> (See IEEE-1364 1995 std)
>
> - A.3.2: present for readability
> - A.3.3: present for readability
> - A.3.4: present for readability
> - A.3.5: present for readability
> - A.3.6: present for readability
> - A.8.7: present for readability
> - A.5.1: contains any modification to the IEEE 1364-1995
> constant_expression syntax.
> - A.5.2: contains any modification to the IEEE 1364-1995 expression
> syntax.
> - A.5.4: contains the 'expression' and analog_expression syntax used in
> analog block statements only.
> - A.6.2: contains extensions to digital event expressions
> - A.7.2: contains the syntax identifier
>
> Regards
> Graham
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Graham Helwig email: A11558@email.mot.com
ghelwig@asc.corp.mot.com
Telephone:+61-8-81683532 Fax:+61-8-81683501
Motorola Australia Software Centre,
2 Second Avenue, Mawson Lakes, Adelaide, SA, 5095, Australia
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