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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2018 Clifford Wolf <clifford@clifford.at>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "design_utils.h"
NEXTPNR_NAMESPACE_BEGIN
void replace_port(CellInfo *old_cell, IdString old_name, CellInfo *rep_cell,
IdString rep_name)
{
PortInfo &old = old_cell->ports.at(old_name);
PortInfo &rep = rep_cell->ports.at(rep_name);
assert(old.type == rep.type);
rep.net = old.net;
old.net = nullptr;
if (rep.type == PORT_OUT) {
if (rep.net != nullptr) {
rep.net->driver.cell = rep_cell;
rep.net->driver.port = rep_name;
}
} else if (rep.type == PORT_IN) {
if (rep.net != nullptr) {
for (PortRef &load : rep.net->users) {
if (load.cell == old_cell && load.port == old_name) {
load.cell = rep_cell;
load.port = rep_name;
}
}
}
} else {
assert(false);
}
}
NEXTPNR_NAMESPACE_END
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