| Number | 181
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| Category | errata
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| Synopsis | 4.3, 9.2.1-3, A.8.4-5: 12 productions better expressed with 3
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| State | lrmdraft
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| Class | superceded
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| Arrival-Date | Oct 30 2002
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| Originator | "Brad Pierce" <Brad.Pierce@synopsys.com>
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| Release | 2001b: 4.3 (Syntax 4-2), 9.2.1 (Syntax 9-1), 9.2.2 (Syntax 9-2), 9.2.3 (Syntax 9-3), A.8.4, A.8.5
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| Environment |
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| Description |
Dan Jacobi points out that 12 productions in A.8.4, A.8.5 could be compressed to 3. I find his versions easier to understand, too. In primary (A.8.4, Syntax 4-2), the 4 hierarchical_identifier productions can be compressed to -- hierarchical_identifier {[expression]} [[range_expression]] In net_lvalue (A.8.5, Syntax 9-3), the 4 hierarchical_net_identifier productions can be compressed to -- hierarchical_net_identifier {[constant_expression]} [[constant_range_expression]] In variable_lvalue (A.8.5, Syntax 9-3), the 4 hierarchical_variable_identifier productions can be compressed to -- hierarchical_variable_identifier {[expression]} [[range_expression]] -- Brad |
| Fix |
The following is incorporated in and superceded by #123. In A.8.4 and Syntax 4-2 REPLACE: bnf production for primary WITH primary ::= number | hierarchical_identifier { [ expression ] } [ [ range_expression ] ] | concatenation | multiple_concatentation | function_call | system_function_call | constant_function_call | ( mintypmax_expression ) |
| Audit-Trail |
From: "Brad Pierce" <Brad.Pierce@synopsys.com> To: <etf-bugs@boyd.com> Cc: Subject: Re: errata/181: PROPOSAL Date: Mon, 2 Dec 2002 11:27:43 -0800 In A.8.4 and Syntax 4-2 change primary ::= number | hierarchical_identifier | hierarchical_identifier [expression] {[expression]} | hierarchical_identifier [expression] {[expression]} [range_expression] | hierarchical_identifier [range_expression] | concatenation | multiple_concatentation | function_call | system_function_call | constant_function_call | (mintypmax_expression) to primary ::= number | hierarchical_identifier {[expression]} [[range_expression]] | concatenation | multiple_concatentation | function_call | system_function_call | constant_function_call | (mintypmax_expression) In A.8.5 and Syntax 9-3 change net_lvalue ::= hierarchical_net_identifier | hierarchical_net_identifier [constant_expression] {[constant_expression]} | hierarchical_net_identifier [constant_expression] {[constant_expression]}[ constant_range_expression] | hierarchical_net_identifier [constant_range_expression] | net_concatenation to net_lvalue ::= hierarchical_net_identifier {[constant_expression]} [[constant_range_expression]] | net_concatenation In A.8.5 and Syntax 9-3 change variable_lvalue ::= hierarchical_variable_identifier | hierarchical_variable_identifier [expression] {[expression]} | hierarchical_variable_identifier [expression] {[expression]} [range_expression] | hierarchical_variable_identifier [range_expression] | variable_concatenation to variable_lvalue ::= hierarchical_variable_identifier {[expression]} [[range_expression]] | variable_concatenation From: Shalom.Bresticker@motorola.com To: etf-bugs@boyd.com Cc: Subject: Re: errata/181: PROPOSAL Date: Tue, 3 Dec 2002 08:09:59 +0200 (IST) The proposal is acceptable. I just want to note that errata/53 also modifies net_lvalue and variable_lvalue, but in a way which is orthogonal to this errata. Both proposals should be accepted. Preferably, the proposal should be worded to note specifically which lines are affected by it. From: Shalom Bresticker <Shalom.Bresticker@motorola.com> To: etf-bugs@boyd.com Cc: Subject: Re: errata/181: PROPOSAL - 4.3, 9.3 -- 12 productions better expressed with 3 Date: Tue, 17 Dec 2002 18:38:11 +0200 These changes are included in and superceded by issue 53. Shalom > In A.8.5 and Syntax 9-3 change > > net_lvalue ::= > hierarchical_net_identifier > | hierarchical_net_identifier [constant_expression] > {[constant_expression]} > | hierarchical_net_identifier [constant_expression] > {[constant_expression]}[ > constant_range_expression] > | hierarchical_net_identifier [constant_range_expression] > | net_concatenation > > to > net_lvalue ::= > hierarchical_net_identifier { '[' constant_expression ']' } > [ '[' constant_range_expression ']' ] > | net_concatenation > > > In A.8.5 and Syntax 9-3 change > > variable_lvalue ::= > hierarchical_variable_identifier > | hierarchical_variable_identifier [expression] {[expression]} > | hierarchical_variable_identifier [expression] {[expression]} > [range_expression] > | hierarchical_variable_identifier [range_expression] > | variable_concatenation > > to > > variable_lvalue ::= > hierarchical_variable_identifier { '[' expression ']' } [ '[' range_expression ']' ] > | variable_concatenation > > > http://boydtechinc.com/cgi-bin/issueproposal.pl?cmd=view&pr=181 -- Shalom Bresticker Shalom.Bresticker@motorola.com Design & Reuse Methodology Tel: +972 9 9522268 Motorola Semiconductor Israel, Ltd. Fax: +972 9 9522890 POB 2208, Herzlia 46120, ISRAEL Cell: +972 50 441478 "The devil is in the details." |
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