| Number | 208
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| Category | errata
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| Synopsis | 12.4, A.9.4: no negative indexes in hierarchical_identifiers
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| State | lrmdraft
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| Class | errata-discuss
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| Arrival-Date | Nov 26 2002
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| Originator | Shalom.Bresticker@motorola.com
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| Release | 2001b: 12.4 (Syntax 12-7), A.9.4
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| Environment |
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| Description |
Arrays of module/gate/udp instances may have negative indexes. Yet, when referenced in hierarchical references, only non-negative numbers may be used. simple_hierarchical_branch ::= simple_identifier [ [ unsigned_number ] ] [ { .simple_identifier [ [ unsigned_number ] ] } ] escaped_hierarchical_branch ::= escaped_identifier [ [ unsigned_number ] ] [ { .escaped_identifier [ [ unsigned_number ] ] } ] Need to fix these productions. |
| Fix |
In Syntax 12-7 and A.9.4, CHANGE simple_hierarchical_branch ::= simple_identifier [ "[" unsigned_number "]" ] { .simple_identifier [ "[" unsigned_number "]" ] } escaped_hierarchical_branch ::= escaped_identifier [ "[" unsigned_number "]" ] { .escaped_identifier [ "[" unsigned_number "]" ] } TO simple_identifier [ "[" constant_expression "]" ] { .simple_identifier [ "[" constant_expression "]" ] } escaped_hierarchical_branch ::= escaped_identifier [ "[" constant_expression "]" ] { .escaped_identifier [ "[" constant_expression "]" ] } When text is written for issue #247 explaining hierarchical references to instance arrays, the text should mention that the ranges and indices must be INTEGER expressions. |
| Audit-Trail |
From: Shalom.Bresticker@motorola.com To: etf-bugs@boyd.com Cc: Subject: Re: errata/208: 12.4, A.9.4: no negative indexes in hierarchical_identifiers Date: Sun, 15 Dec 2002 22:51:05 +0200 (IST) Should not any constant expression be allowed? Shalom > Arrays of module/gate/udp instances may have > negative indexes. > > Yet, when referenced in hierarchical references, only > non-negative numbers may be used. > > simple_hierarchical_branch ::= > simple_identifier [ [ unsigned_number ] ] > [ { .simple_identifier [ [ unsigned_number ] ] } ] > > escaped_hierarchical_branch ::= > escaped_identifier [ [ unsigned_number ] ] > [ { .escaped_identifier [ [ unsigned_number ] ] } ] > > Need to fix these productions. From: Shalom.Bresticker@motorola.com To: Brad.Pierce@synopsys.com Cc: etf-bugs@boyd.com Subject: Re: errata/208: PROPOSAL - 12.4, A.9.4: no negative indexes in hierarchical_identifiers Date: Fri, 19 Sep 2003 12:40:38 +0300 (IDT) I have no objections, but there are some related issues: - spaces within the names. Currently forbidden, but we are going to propose to allow them. - 209 notes differences between simple_ and escaped_hierarchical_branches, and the proposal is going to delete these 2 productions and incorporate them elsewhere. Shalom > In Syntax 12-7 and A.9.4, > > CHANGE > > simple_hierarchical_branch ::= > simple_identifier [ "[" unsigned_number "]" ] > { .simple_identifier [ "[" unsigned_number "]" ] } > > escaped_hierarchical_branch ::= > escaped_identifier [ "[" unsigned_number "]" ] > { .escaped_identifier [ "[" unsigned_number "]" ] } > > TO > > simple_identifier [ "[" constant_expression "]" ] > { .simple_identifier [ "[" constant_expression "]" ] } > > escaped_hierarchical_branch ::= > escaped_identifier [ "[" constant_expression "]" ] > { .escaped_identifier [ "[" constant_expression "]" ] } > > http://boydtechinc.com/cgi-bin/issueproposal.pl?cmd=view&pr=208 -- 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 |
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