mirror of
https://github.com/YosysHQ/yosys
synced 2025-10-31 11:42:30 +00:00
3aa4484a3c
o Not all derived methods were marked 'override', but it is a great feature of C++11 that we should make use of. o While at it: touched header files got a -*- c++ -*- for emacs to provide support for that language. o use YS_OVERRIDE for all override keywords (though we should probably use the plain keyword going forward now that C++11 is established)
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/*
|
|
* yosys -- Yosys Open SYnthesis Suite
|
|
*
|
|
* Copyright (C) 2012 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 "kernel/register.h"
|
|
#include "kernel/celltypes.h"
|
|
#include "kernel/rtlil.h"
|
|
#include "kernel/log.h"
|
|
|
|
USING_YOSYS_NAMESPACE
|
|
PRIVATE_NAMESPACE_BEGIN
|
|
|
|
struct ScatterPass : public Pass {
|
|
ScatterPass() : Pass("scatter", "add additional intermediate nets") { }
|
|
void help() YS_OVERRIDE
|
|
{
|
|
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
|
|
log("\n");
|
|
log(" scatter [selection]\n");
|
|
log("\n");
|
|
log("This command adds additional intermediate nets on all cell ports. This is used\n");
|
|
log("for testing the correct use of the SigMap helper in passes. If you don't know\n");
|
|
log("what this means: don't worry -- you only need this pass when testing your own\n");
|
|
log("extensions to Yosys.\n");
|
|
log("\n");
|
|
log("Use the opt_clean command to get rid of the additional nets.\n");
|
|
log("\n");
|
|
}
|
|
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
|
|
{
|
|
CellTypes ct(design);
|
|
extra_args(args, 1, design);
|
|
|
|
for (auto &mod_it : design->modules_)
|
|
{
|
|
if (!design->selected(mod_it.second))
|
|
continue;
|
|
|
|
for (auto &c : mod_it.second->cells_)
|
|
for (auto &p : c.second->connections_)
|
|
{
|
|
RTLIL::Wire *wire = mod_it.second->addWire(NEW_ID, p.second.size());
|
|
|
|
if (ct.cell_output(c.second->type, p.first)) {
|
|
RTLIL::SigSig sigsig(p.second, wire);
|
|
mod_it.second->connect(sigsig);
|
|
} else {
|
|
RTLIL::SigSig sigsig(wire, p.second);
|
|
mod_it.second->connect(sigsig);
|
|
}
|
|
|
|
p.second = wire;
|
|
}
|
|
}
|
|
}
|
|
} ScatterPass;
|
|
|
|
PRIVATE_NAMESPACE_END
|