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Support unconnected .net objects.

This commit is contained in:
steve 2001-04-23 00:37:58 +00:00
parent 66cf3ec8fa
commit 102fd24dd2
2 changed files with 40 additions and 7 deletions
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11
vvp/compile.cc
View File

@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: compile.cc,v 1.37 2001/04/21 02:04:01 steve Exp $"
#ident "$Id: compile.cc,v 1.38 2001/04/23 00:37:58 steve Exp $"
#endif
# include "compile.h"
@ -735,6 +735,12 @@ void compile_net(char*label, char*name, int msb, int lsb, bool signed_flag,
vvp_ipoint_t ptr = ipoint_index(fdx,idx);
functor_t obj = functor_index(ptr);
/* Skip unconnected nets. */
if (argv[idx].text == 0) {
obj->oval = 3;
continue;
}
val = sym_get_value(sym_functors, argv[idx].text);
if (val.num) {
@ -846,6 +852,9 @@ void compile_dump(FILE*fd)
/*
* $Log: compile.cc,v $
* Revision 1.38 2001/04/23 00:37:58 steve
* Support unconnected .net objects.
*
* Revision 1.37 2001/04/21 02:04:01 steve
* Add NAND and XNOR functors.
*

36
vvp/parse.y
View File

@ -19,7 +19,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#if !defined(WINNT)
#ident "$Id: parse.y,v 1.20 2001/04/18 04:21:23 steve Exp $"
#ident "$Id: parse.y,v 1.21 2001/04/23 00:37:58 steve Exp $"
#endif
# include "parse_misc.h"
@ -62,8 +62,8 @@ extern FILE*yyin;
%token <text> T_SYMBOL
%token <vect> T_VECTOR
%type <symb> symbol
%type <symbv> symbols
%type <symb> symbol symbol_opt
%type <symbv> symbols symbols_net
%type <text> label_opt
%type <opa> operand operands operands_opt
@ -186,10 +186,10 @@ statement
/* Net statements are similar to .var statements, except that they
declare nets, and they have an input list. */
| T_LABEL K_NET T_STRING ',' T_NUMBER ',' T_NUMBER ',' symbols ';'
| T_LABEL K_NET T_STRING ',' T_NUMBER ',' T_NUMBER ',' symbols_net ';'
{ compile_net($1, $3, $5, $7, false, $9.cnt, $9.vect); }
| T_LABEL K_NET_S T_STRING ',' T_NUMBER ',' T_NUMBER ',' symbols ';'
| T_LABEL K_NET_S T_STRING ',' T_NUMBER ',' T_NUMBER ',' symbols_net ';'
{ compile_net($1, $3, $5, $7, true, $9.cnt, $9.vect); }
/* Oh and by the way, empty statements are OK as well. */
@ -305,6 +305,20 @@ symbols
;
symbols_net
: symbol_opt
{ struct symbv_s obj;
symbv_init(&obj);
symbv_add(&obj, $1);
$$ = obj;
}
| symbols_net ',' symbol_opt
{ struct symbv_s obj = $1;
symbv_add(&obj, $3);
$$ = obj;
}
;
/* In some cases, simple pointer arithmetic is allowed. In
particular, functor vectors can be indexed with the [] syntax,
with values from 0 up. */
@ -318,7 +332,14 @@ symbol
{ $$.text = $1;
$$.idx = $3;
}
;
symbol_opt
: symbol
{ $$ = $1; }
|
{ $$.text = 0;
$$.idx = 0;
}
%%
@ -339,6 +360,9 @@ int compile_design(const char*path)
/*
* $Log: parse.y,v $
* Revision 1.21 2001/04/23 00:37:58 steve
* Support unconnected .net objects.
*
* Revision 1.20 2001/04/18 04:21:23 steve
* Put threads into scopes.
*