mirror of https://github.com/YosysHQ/yosys.git
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* yosys -- Yosys Open SYnthesis Suite
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*
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* Copyright (C) 2012 Claire Xenia Wolf <claire@yosyshq.com>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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*/
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#include "kernel/yosys.h"
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#include "kernel/sigtools.h"
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USING_YOSYS_NAMESPACE
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PRIVATE_NAMESPACE_BEGIN
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struct Lut2BmuxPass : public Pass {
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Lut2BmuxPass() : Pass("lut2bmux", "convert $lut to $bmux") { }
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void help() override
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{
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// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
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log("\n");
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log(" lut2bmux [options] [selection]\n");
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log("\n");
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log("This pass converts $lut cells to $bmux cells.\n");
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log("\n");
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}
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void execute(std::vector<std::string> args, RTLIL::Design *design) override
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{
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log_header(design, "Executing LUT2BMUX pass (convert $lut to $bmux).\n");
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size_t argidx = 1;
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extra_args(args, argidx, design);
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for (auto module : design->selected_modules())
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for (auto cell : module->selected_cells()) {
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if (cell->type == ID($lut)) {
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cell->type = ID($bmux);
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cell->setPort(ID::S, cell->getPort(ID::A));
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cell->setPort(ID::A, cell->getParam(ID::LUT));
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cell->unsetParam(ID::LUT);
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cell->fixup_parameters();
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log("Converted %s.%s to BMUX cell.\n", log_id(module), log_id(cell));
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}
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}
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}
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} Lut2BmuxPass;
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PRIVATE_NAMESPACE_END
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