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Net declaration assignments.

This commit is contained in:
steve 1999-06-02 02:56:29 +00:00
parent 49ef36712c
commit 2a85ee5059
1 changed files with 40 additions and 1 deletions
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41
parse.y
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@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: parse.y,v 1.30 1999/05/30 03:12:56 steve Exp $"
#ident "$Id: parse.y,v 1.31 1999/06/02 02:56:29 steve Exp $"
#endif
# include "parse_misc.h"
@ -96,6 +96,9 @@ extern void lex_end_table();
%type <strings> register_variable_list
%type <strings> list_of_variables
%type <text> net_decl_assign
%type <strings> net_decl_assigns
%type <wire> port
%type <wires> list_of_ports list_of_ports_opt
@ -799,6 +802,14 @@ module_item
}
delete $3;
}
| net_type range_opt net_decl_assigns ';'
{ pform_makewire($3, $1);
if ($2) {
pform_set_net_range($3, $2);
delete $2;
}
delete $3;
}
| port_type range_opt list_of_variables ';'
{ pform_set_port_type($3, $1);
if ($2) {
@ -865,6 +876,34 @@ module_item_list
| module_item
;
/* A net declaration assignment allows the programmer to combine the
net declaration and the continuous assignment into a single
statement. */
net_decl_assign
: IDENTIFIER '=' expression
{ PEIdent*id = new PEIdent(*$1);
PGAssign*tmp = pform_make_pgassign(id, $3);
tmp->set_file(@1.text);
tmp->set_lineno(@1.first_line);
$$ = $1;
}
;
net_decl_assigns
: net_decl_assigns ',' net_decl_assign
{ list<string>*tmp = $1;
tmp->push_back(*$3);
delete $3;
$$ = tmp;
}
| net_decl_assign
{ list<string>*tmp = new list<string>;
tmp->push_back(*$1);
delete $1;
$$ = tmp;
}
;
net_type
: K_wire { $$ = NetNet::WIRE; }
| K_tri { $$ = NetNet::TRI; }