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Support %force/link

This commit is contained in:
steve 2005-06-02 16:03:47 +00:00
parent 42433f4df9
commit 2f7ec71a78
1 changed files with 39 additions and 25 deletions
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64
tgt-vvp/vvp_process.c
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@ -17,7 +17,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CVS_IDENT
#ident "$Id: vvp_process.c,v 1.110 2005/05/24 02:31:18 steve Exp $"
#ident "$Id: vvp_process.c,v 1.111 2005/06/02 16:03:47 steve Exp $"
#endif
# include "vvp_priv.h"
@ -812,6 +812,39 @@ static void force_vector_to_lval(ivl_statement_t net, struct vector_info rvec)
}
}
static void force_link_rval(ivl_statement_t net, ivl_expr_t rval)
{
ivl_signal_t rsig;;
ivl_lval_t lval;
ivl_signal_t lsig;
const char*command_name;
if (ivl_expr_type(rval) != IVL_EX_SIGNAL)
return;
switch (ivl_statement_type(net)) {
case IVL_ST_CASSIGN:
command_name = "%cassign";
break;
case IVL_ST_FORCE:
command_name = "%force";
break;
default:
command_name = "ERROR";
assert(0);
break;
}
rsig = ivl_expr_signal(rval);
assert(ivl_stmt_lvals(net) == 1);
lval = ivl_stmt_lval(net, 0);
lsig = ivl_lval_sig(lval);
fprintf(vvp_out, " %s/link", command_name);
fprintf(vvp_out, " V_%s", vvp_signal_label(lsig));
fprintf(vvp_out, ", V_%s;\n", vvp_signal_label(rsig));
}
static int show_stmt_cassign(ivl_statement_t net)
{
ivl_expr_t rval;
@ -826,25 +859,7 @@ static int show_stmt_cassign(ivl_statement_t net)
the expression value to the l-value. */
force_vector_to_lval(net, rvec);
/* If the r-value expression is not a signal, then this
expression is apparently just to be continuous-assigned as
a constant value. */
if (ivl_expr_type(rval) != IVL_EX_SIGNAL)
return 0;
{
ivl_signal_t rsig = ivl_expr_signal(rval);
ivl_lval_t lval;
ivl_signal_t lsig;
assert(ivl_stmt_lvals(net) == 1);
lval = ivl_stmt_lval(net, 0);
lsig = ivl_lval_sig(lval);
fprintf(vvp_out, " %%cassign/link");
fprintf(vvp_out, " V_%s", vvp_signal_label(lsig));
fprintf(vvp_out, ", V_%s;\n", vvp_signal_label(rsig));
}
force_link_rval(net, rval);
return 0;
}
@ -1001,11 +1016,7 @@ static int show_stmt_force(ivl_statement_t net)
the expression value to the l-value. */
force_vector_to_lval(net, rvec);
/* FIXME: The above, left as is, assumes that the expression
is a constant value to be assigned to the target. If it is
not, then we will need to generate a thread or netlist to
deal with the expression and repetitively assign to the
target. */
force_link_rval(net, rval);
return 0;
}
@ -1504,6 +1515,9 @@ int draw_func_definition(ivl_scope_t scope)
/*
* $Log: vvp_process.c,v $
* Revision 1.111 2005/06/02 16:03:47 steve
* Support %force/link
*
* Revision 1.110 2005/05/24 02:31:18 steve
* Handle assignments to part-select l-values.
*