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Add support for variable part select.

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steve
2005-05-08 23:40:14 +00:00
parent 48aa0f0075
commit 7dd0d255a6
16 changed files with 263 additions and 62 deletions
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vvp/part.cc
+58 -1
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@@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#ident "$Id: part.cc,v 1.3 2005/01/09 20:11:16 steve Exp $"
#ident "$Id: part.cc,v 1.4 2005/05/08 23:40:14 steve Exp $"
# include "compile.h"
# include "vvp_net.h"
@@ -67,6 +67,46 @@ void vvp_fun_part_pv::recv_vec4(vvp_net_ptr_t port, vvp_vector4_t bit)
vvp_send_vec4_pv(port.ptr()->out, bit, base_, wid_, vwid_);
}
vvp_fun_part_var::vvp_fun_part_var(unsigned w)
: base_(0), wid_(w)
{
}
vvp_fun_part_var::~vvp_fun_part_var()
{
}
void vvp_fun_part_var::recv_vec4(vvp_net_ptr_t port, vvp_vector4_t bit)
{
unsigned long tmp;
switch (port.port()) {
case 0:
source_ = bit;
break;
case 1:
vector4_to_value(bit, tmp);
if (tmp == base_) return;
base_ = tmp;
break;
default:
assert(0);
break;
}
vvp_vector4_t res (wid_);
for (unsigned idx = 0 ; idx < wid_ ; idx += 1) {
unsigned adr = base_+idx;
if (adr >= source_.size())
break;
res.set_bit(idx, source_.value(adr));
}
vvp_send_vec4(port.ptr()->out, res);
}
/*
* Given a node functor, create a network node and link it into the
* netlist. This form assumes nodes with a single input.
@@ -97,8 +137,25 @@ void compile_part_select_pv(char*label, char*source,
link_node_1(label, source, fun);
}
void compile_part_select_var(char*label, char*source, char*var,
unsigned wid)
{
vvp_fun_part_var*fun = new vvp_fun_part_var(wid);
vvp_net_t*net = new vvp_net_t;
net->fun = fun;
define_functor_symbol(label, net);
free(label);
input_connect(net, 0, source);
input_connect(net, 1, var);
}
/*
* $Log: part.cc,v $
* Revision 1.4 2005/05/08 23:40:14 steve
* Add support for variable part select.
*
* Revision 1.3 2005/01/09 20:11:16 steve
* Add the .part/pv node and related functionality.
*