RE: [sv-bc] e-mail ballot: respond by Dec 3, 8am PST

From: Bresticker, Shalom <shalom.bresticker_at_.....>
Date: Mon Dec 03 2007 - 06:58:39 PST
Also on 2217, I find "member select construct" awkward. I think "member
select" is enough.

Shalom 

> -----Original Message-----
> From: owner-sv-bc@server.eda.org 
> [mailto:owner-sv-bc@server.eda.org] On Behalf Of Bresticker, Shalom
> Sent: Monday, December 03, 2007 4:52 PM
> To: sv-bc
> Subject: FW: [sv-bc] e-mail ballot: respond by Dec 3, 8am PST
> 
> I vote No on 1619, 2102, 2106, 2217.
> Yes with friendly amendments on 1339, 1571, 2184.
> Comment on 329.
> Yes on the others.
> 
> Shalom
> 
> 
> SVDB  329 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=329
> 
> Version V5, 2007-11-30
> 
> The wording in 25.4, "Package items can be referenced in 
> module, interface or program parameter and port declarations 
> by importing the package as part of the header to the module, 
> interface or program declaration," is a trifle imprecise in 
> that the header can contain an import not just of an entire 
> package, but also of specific package items, but not enough 
> for me to vote No.
>  
> 
> SVDB 1338 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=1338
> 
> Version V6, 2007-11-30
> 
> 
> SVDB 1339 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=1339
> 
> Version V4, 2007-11-29
> 
> Friendly amendment:
> 
> Change last sentence to,
> "Any white space characters at the beginning or end of the 
> macro text shall be removed."
> 
> (No hyphen in 'white space'.)
> 
> 
> SVDB 1548 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=1548
> SVDB 1571 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=1571
> 
> Version V6, 2007-12-02
> 
> Friendly amendment: 
> 
> CHANGE
> "When a macro usage is passed as an actual argument to 
> another macro, the argument expansion shall not introduce new 
> uses of the formal arguments to the top-level macro."
> 
> TO
> "When a macro usage is passed as an actual argument to 
> another macro, the argument expansion does not introduce new 
> uses of the formal arguments to the top-level macro."
> 
> 
> SVDB 1619 ___Yes   _x_No  http://www.eda.org/svdb/view.php?id=1619
> 
> Version V5, 2007-11-30
> 
> The changes below which are noted with a * are required to 
> change my vote to Yes. The others are friendly amendments.
> 
> 1A. In the introduction, change "This is an initial proposal" 
> to "This is a proposal".
> 
> B. Change "a similar wording for module ports could go 
> something like:"
> to "a similar wording for module ports is the following:".
> 
> *2A. In 22.2.2.4, in the sentence, 
> 
> "These default values shall be constant expressions evaluated 
> in the scope of the module where it is defined not in the 
> scope of the instantiating module,"
> 
> add a comma between "defined" and "not", change "it is" to "they are".
> 
> B. In the lines
> 
> "The informal syntax to declare a default input port value in 
> a module is as follows:
> module module_name ( ..., [ input ] [ type ] port_identifier 
> = constant_expression, ... );"
> 
> change 'module' and 'input' to Bold Courier.
> 
> C. Change "If an input port is left unconnected" to "If a 
> connection is not specified for an input port".
> 
> *D. Change "name connections" to "named connections".
> 
> *E. Change "default ports semantics and parameter scoping 
> resolution" to "default port semantics and parameter scope 
> resolution".
> 
> *F. In the example, all the keywords and only the keywords 
> should be Bold.
> 
> *G. Change the module bus_conn from
> 
> module bus_conn (
>    output logic [7:0] dataout,
>    input [7:0] datain = My_DataIn,
>    dataout = datain;
> endmodule
> 
> TO
> 
> module bus_conn (
>    output logic [7:0] dataout,
>    input [7:0] datain = My_DataIn );
> assign dataout = datain;
> endmodule
>  
> *H. Change
> 
> module bus_connect1 (
>    output logic [31:0] dataout,
>    input [7:0] datain
> 
> TO
> 
> module bus_connect1 (
>    output logic [31:0] dataout,
>    input [7:0] datain );
> 
> 
> 3A. In 22.3.2.1, start the sentence, "If a port connection is 
> omitted (indicated by a missing argument in the comma 
> separated list) to an input port with a default value, the 
> default value shall be used," with "However, ".
> 
> *B. In the example, with the line, "accum accum 
> (dataout[7:0], , clk, rst_n); // datain gets default value 
> 8'hFF," by connecting datain to a fixed default value, the 
> example no longer makes sense.
> 
> *4A. In 22.3.2.2, in "If an input port with a specified 
> default value has an explicit empty named port connection 
> (i.e., .port_identifier()),"
> change "port_identifier" to "port_name" to be consistent with 
> the rest of the subclause.
> 
> *B. In the example lines,
> 
> "accum accum (.dataout(dataout[7:0]),, .clk(clk), 
> .rst_n(rst_n)); // datain is not in the port list, gets 
> default value 8'hFF xtend xtend (.dout(dataout[15:8]), 
> .din(alu_out[7]), .clk(clk), .rst()); // rst has a default 
> value, but has an empty port connection, therefore left unconnected 
> 
> has a default value, but has an empty port connection, 
> therefore left unconnected,"
> same comment as 3B above. Also, the deletion of rst_n 
> connecting expression must be explicit, in red strikeout.
> 
> 5A. In 22.3.2.3, Change "implicit wire declaration" to 
> "implicit net declaration".
> 
> *B. In "To leave a port with a default value unconnected, 
> open brackets must be used after .name, i.e. name().", change 
> "open brackets" to "empty parentheses".
> 
> *C. In the line, "   alu alu (.alu_out, .zero(), .ain, .bin, 
> .opcode);"
> the parentheses after .zero are in red strikeout. I don't 
> think that is correct.
> 
> *D. In "The clk is connected using implicit .name port 
> connections while the rst_n port is left unconnected because 
> it uses empty brackets even though it has a default value," 
> 'implicit .name port connections' should be 'an implicit 
> .name connection'. 'empty brackets' should be 'empty parentheses'.
> 
> E. Port names in the text should be in Courier font.
> 
> *F. Change
> "The clk is connected using implicit .name port connection, 
> but the rst signal does not exist in the instantiation module 
> and hence shall generate an error even though a default port 
> value exists."
> TO
> "The clk port is connected using an implicit .name port 
> connection, but the rst signal does not exist in the 
> instantiating module and hence will generate an error even 
> though a default port value exists." (Among the other changes 
> in the sentence, 'will' is more appropriate than 'shall'
> in this particular place.)
> 
> *6A. In 23.3.2.4, remove all the red strikeout text at the 
> beginning. It is not text from the LRM, but rather from 
> previous versions of the proposal and should not appear here 
> at all. It is confusing.
> 
> *B. In, "An implicit .* port connection is semantically 
> equivalent to a default .name port connection for every port 
> declared in the instantiated module with two exceptions," 
> change "default" to "implicit", as in the Draft 4 LRM.
> 
> *C. In "2. Using .* does not create a sufficient reference 
> for a wildcard import of a name from a package. A named port 
> connection can be mixed with a .* connection to override a 
> port connection to a different expression or to leave a port 
> unconnected. A named or implicit .name connection can be 
> mixed with a .* connection to create a sufficient reference 
> for a wildcard import of a name from a package,"
> 
> the second sentence,
> 
> "A named port connection can be mixed with a .* connection to 
> override a port connection to a different expression or to 
> leave a port unconnected,"
> 
> is not relevant to the paragraph. Move it instead to the 
> first paragraph of the subclause, after the sentence, "This 
> implicit port connection style is used to indicate that all 
> port names and types match the connections where emphasis is 
> placed only on the exception ports."
> 
> *7A. In the syntax changes, the = token (for Brad) and the 
> word 'input'
> should be in bold red.
> 
> 
> SVDB 1957 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=1957
> SVDB 2102 ___Yes   _x_No  http://www.eda.org/svdb/view.php?id=2102
> 
> Version V2, 2007-11-30
> 
> I am still unhappy with this. I still think it could be 
> interpreted to say that if there is an unpacked aggregate 
> whose elements are themselves packed aggregates (such as an 
> array whose elements are n-bit packed vectors), then only 
> different words can be written in different ways (one 
> procedurally, one continuously), but not different bits in 
> the same word. I understood from the discussion that this is not so.
> 
> In particular, the text still contains this example:
> 
> struct {
> bit [7:0] A;
> bit [7:0] B;
> byte C;
> } abc;
> 
> not (abc.A[0],abc.B[0]),
> (abc.A[1],abc.B[1]),
> (abc.A[2],abc.B[2]),
> (abc.A[3],abc.B[3]);
> 
> The following additional statements are illegal assignments to struct
> abc:
> // Mixing continuous and procedural assignments to abc.A 
> always @(posedge clk) abc.A[7:4] <= !abc.B[7:4];
> 
> I don't think the paragraph should be deleted. Instead, I 
> think the two paragraphs should be combined, but in a 
> paragraph devoted only to this subject. So if we look at the 
> first paragraph,
> 
> "Variables can be written by one or more procedural 
> statements, including procedural continuous assignments. The 
> last write determines the value. Variables can be written by 
> one continuous assignment or one port. It shall be an error 
> to have multiple continuous assignments or a mixture of 
> procedural and continuous assignments writing to any term in 
> the expansion of a written longest static prefix of a variable (see
> 11.5.3 for the definition of the expansion of a longest 
> static prefix).
> The force statement overrides the procedural assign 
> statement, which in turn overrides the normal assignments,"
> 
> then the first two sentences should be separated into a 
> separate paragraph. The last sentence should be moved to the 
> paragraph following the example, which mentions force.
> Then the remaining two sentences should be combined with the 
> second paragraph.
> 
> 
> SVDB 2106 ___Yes   _x_No  http://www.eda.org/svdb/view.php?id=2106
> 
> The sentence, "It shall be an error if the type_identifier 
> does not resolve to data type, or basic data type if 
> specified, " is unclear to me.
> 
> And what is the difference between "data type" and "basic data type"?
> 
> The paragraph, "A variable declaration shall precede any 
> statements within a procedural block. A variable declaration 
> shall precede any simple reference (non-hierarchal) to that 
> variable," seems stuck in the middle of a bunch of paragraphs 
> describing scope and lifetime in various cases.
> 
> The paragraph, "Variables declared in an automatic task, 
> function, or block may have the lifetime of the call or 
> activation and a local scope.
> This is roughly equivalent to a C automatic variable," should 
> go together with the sentence, "Tasks and functions may be 
> declared as automatic, making all variables within the task 
> or function automatic."
> And they both should go together with the last paragraph 
> saying, "Variables declared to be static in an automatic 
> task, function, or block have a static lifetime and a scope 
> local to the block." 
> 
> Also, the "may" in "Variables declared in an automatic task, 
> function, or block may have the lifetime of the call or 
> activation and a local scope, " makes the sentence 
> effectively meaningless. The parallel statement for static 
> blocks is, "Variables declared in a static task, function, or 
> block default to a static lifetime and a local scope,"
> which is better wording.
> 
> The first reference to type parameters should have an xref to 6.20.3.
> 
> "This is roughly equivalent to C static variables declared 
> outside a function, which is local to a file." - I think 
> should be "are local".
> 
> 
> SVDB 2152 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=2152
> SVDB 2163 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=2163
> SVDB 2169 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=2169
> 
> Version V2, 2007-12-03
> 
> SVDB 2170 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=2170
> SVDB 2178 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=2178
> SVDB 2184 _x_Yes   ___No  http://www.eda.org/svdb/view.php?id=2184
> 
> Version V2, 2007-12-02
> 
> Friendly amendment: Change
> "The system functions allowed in constant expressions when 
> their arguments are constant expression" to
> 
> "The system functions allowed in constant expressions when 
> their arguments are constant expressions"
> 
> 
> SVDB 2217 ___Yes   _x_No  http://www.eda.org/svdb/view.php?id=2217
> 
> The placement of this text is not clear to me.
> The introductory note says,
> 
> "the following text refers to "22.7.2".  That reference 
> should be correct assuming that Mantis 1809 is applied first 
> since 1809 adds 22.7.1."
> 
> But the text does not have any reference to 22.7.2.
> 
> Also, the text is this proposal places it in 22.6. I don't 
> think that is the place for it. 22.6 deals with only simple 
> downward hierarchical names and full hierarchical names. This 
> text belongs in either 22.7 or 22.8.
> 
> Also, regarding "dotted name 1:  The first name component is 
> s1.  Since
> s1 is a directly visible scope name, rule 2 applies and the 
> name s1.x is considered to be a hierarchical name," it is not 
> clear to me whether and why s1 is directly visible. It would 
> probably be not clear to other users as well.
> 
> Shalom
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> Intel Israel (74) Limited
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Received on Mon Dec 3 07:01:56 2007

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