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|
/*
* 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 "simplemap.h"
#include "kernel/sigtools.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
USING_YOSYS_NAMESPACE
YOSYS_NAMESPACE_BEGIN
void simplemap_not(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool());
for (int i = 0; i < GetSize(sig_y); i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a[i]);
gate->setPort("\\Y", sig_y[i]);
}
}
void simplemap_pos(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool());
module->connect(RTLIL::SigSig(sig_y, sig_a));
}
void simplemap_bitop(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_b = cell->getPort("\\B");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
sig_a.extend_u0(GetSize(sig_y), cell->parameters.at("\\A_SIGNED").as_bool());
sig_b.extend_u0(GetSize(sig_y), cell->parameters.at("\\B_SIGNED").as_bool());
if (cell->type == "$xnor")
{
RTLIL::SigSpec sig_t = module->addWire(NEW_ID, GetSize(sig_y));
for (int i = 0; i < GetSize(sig_y); i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_t[i]);
gate->setPort("\\Y", sig_y[i]);
}
sig_y = sig_t;
}
std::string gate_type;
if (cell->type == "$and") gate_type = "$_AND_";
if (cell->type == "$or") gate_type = "$_OR_";
if (cell->type == "$xor") gate_type = "$_XOR_";
if (cell->type == "$xnor") gate_type = "$_XOR_";
log_assert(!gate_type.empty());
for (int i = 0; i < GetSize(sig_y); i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a[i]);
gate->setPort("\\B", sig_b[i]);
gate->setPort("\\Y", sig_y[i]);
}
}
void simplemap_reduce(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
if (sig_y.size() == 0)
return;
if (sig_a.size() == 0) {
if (cell->type == "$reduce_and") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size())));
if (cell->type == "$reduce_or") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
if (cell->type == "$reduce_xor") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
if (cell->type == "$reduce_xnor") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(1, sig_y.size())));
if (cell->type == "$reduce_bool") module->connect(RTLIL::SigSig(sig_y, RTLIL::SigSpec(0, sig_y.size())));
return;
}
if (sig_y.size() > 1) {
module->connect(RTLIL::SigSig(sig_y.extract(1, sig_y.size()-1), RTLIL::SigSpec(0, sig_y.size()-1)));
sig_y = sig_y.extract(0, 1);
}
std::string gate_type;
if (cell->type == "$reduce_and") gate_type = "$_AND_";
if (cell->type == "$reduce_or") gate_type = "$_OR_";
if (cell->type == "$reduce_xor") gate_type = "$_XOR_";
if (cell->type == "$reduce_xnor") gate_type = "$_XOR_";
if (cell->type == "$reduce_bool") gate_type = "$_OR_";
log_assert(!gate_type.empty());
RTLIL::Cell *last_output_cell = NULL;
while (sig_a.size() > 1)
{
RTLIL::SigSpec sig_t = module->addWire(NEW_ID, sig_a.size() / 2);
for (int i = 0; i < sig_a.size(); i += 2)
{
if (i+1 == sig_a.size()) {
sig_t.append(sig_a[i]);
continue;
}
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a[i]);
gate->setPort("\\B", sig_a[i+1]);
gate->setPort("\\Y", sig_t[i/2]);
last_output_cell = gate;
}
sig_a = sig_t;
}
if (cell->type == "$reduce_xnor") {
RTLIL::SigSpec sig_t = module->addWire(NEW_ID);
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a);
gate->setPort("\\Y", sig_t);
last_output_cell = gate;
sig_a = sig_t;
}
if (last_output_cell == NULL) {
module->connect(RTLIL::SigSig(sig_y, sig_a));
} else {
last_output_cell->setPort("\\Y", sig_y);
}
}
static void logic_reduce(RTLIL::Module *module, RTLIL::SigSpec &sig, RTLIL::Cell *cell)
{
while (sig.size() > 1)
{
RTLIL::SigSpec sig_t = module->addWire(NEW_ID, sig.size() / 2);
for (int i = 0; i < sig.size(); i += 2)
{
if (i+1 == sig.size()) {
sig_t.append(sig[i]);
continue;
}
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_OR_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig[i]);
gate->setPort("\\B", sig[i+1]);
gate->setPort("\\Y", sig_t[i/2]);
}
sig = sig_t;
}
if (sig.size() == 0)
sig = RTLIL::SigSpec(0, 1);
}
void simplemap_lognot(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
logic_reduce(module, sig_a, cell);
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
if (sig_y.size() == 0)
return;
if (sig_y.size() > 1) {
module->connect(RTLIL::SigSig(sig_y.extract(1, sig_y.size()-1), RTLIL::SigSpec(0, sig_y.size()-1)));
sig_y = sig_y.extract(0, 1);
}
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_NOT_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a);
gate->setPort("\\Y", sig_y);
}
void simplemap_logbin(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
logic_reduce(module, sig_a, cell);
RTLIL::SigSpec sig_b = cell->getPort("\\B");
logic_reduce(module, sig_b, cell);
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
if (sig_y.size() == 0)
return;
if (sig_y.size() > 1) {
module->connect(RTLIL::SigSig(sig_y.extract(1, sig_y.size()-1), RTLIL::SigSpec(0, sig_y.size()-1)));
sig_y = sig_y.extract(0, 1);
}
std::string gate_type;
if (cell->type == "$logic_and") gate_type = "$_AND_";
if (cell->type == "$logic_or") gate_type = "$_OR_";
log_assert(!gate_type.empty());
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a);
gate->setPort("\\B", sig_b);
gate->setPort("\\Y", sig_y);
}
void simplemap_eqne(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_b = cell->getPort("\\B");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
bool is_signed = cell->parameters.at("\\A_SIGNED").as_bool();
bool is_ne = cell->type.in("$ne", "$nex");
RTLIL::SigSpec xor_out = module->addWire(NEW_ID, max(GetSize(sig_a), GetSize(sig_b)));
RTLIL::Cell *xor_cell = module->addXor(NEW_ID, sig_a, sig_b, xor_out, is_signed);
xor_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
simplemap_bitop(module, xor_cell);
module->remove(xor_cell);
RTLIL::SigSpec reduce_out = is_ne ? sig_y : module->addWire(NEW_ID);
RTLIL::Cell *reduce_cell = module->addReduceOr(NEW_ID, xor_out, reduce_out);
reduce_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
simplemap_reduce(module, reduce_cell);
module->remove(reduce_cell);
if (!is_ne) {
RTLIL::Cell *not_cell = module->addLogicNot(NEW_ID, reduce_out, sig_y);
not_cell->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
simplemap_lognot(module, not_cell);
module->remove(not_cell);
}
}
void simplemap_mux(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_b = cell->getPort("\\B");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
for (int i = 0; i < GetSize(sig_y); i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_MUX_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a[i]);
gate->setPort("\\B", sig_b[i]);
gate->setPort("\\S", cell->getPort("\\S"));
gate->setPort("\\Y", sig_y[i]);
}
}
void simplemap_tribuf(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_e = cell->getPort("\\EN");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
for (int i = 0; i < GetSize(sig_y); i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_TBUF_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", sig_a[i]);
gate->setPort("\\E", sig_e);
gate->setPort("\\Y", sig_y[i]);
}
}
void simplemap_lut(RTLIL::Module *module, RTLIL::Cell *cell)
{
SigSpec lut_ctrl = cell->getPort("\\A");
SigSpec lut_data = cell->getParam("\\LUT");
lut_data.extend_u0(1 << cell->getParam("\\WIDTH").as_int());
for (int idx = 0; GetSize(lut_data) > 1; idx++) {
SigSpec sig_s = lut_ctrl[idx];
SigSpec new_lut_data = module->addWire(NEW_ID, GetSize(lut_data)/2);
for (int i = 0; i < GetSize(lut_data); i += 2) {
RTLIL::Cell *gate = module->addCell(NEW_ID, "$_MUX_");
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\A", lut_data[i]);
gate->setPort("\\B", lut_data[i+1]);
gate->setPort("\\S", lut_ctrl[idx]);
gate->setPort("\\Y", new_lut_data[i/2]);
}
lut_data = new_lut_data;
}
module->connect(cell->getPort("\\Y"), lut_data);
}
void simplemap_sop(RTLIL::Module *module, RTLIL::Cell *cell)
{
SigSpec ctrl = cell->getPort("\\A");
SigSpec table = cell->getParam("\\TABLE");
int width = cell->getParam("\\WIDTH").as_int();
int depth = cell->getParam("\\DEPTH").as_int();
table.extend_u0(2 * width * depth);
SigSpec products;
for (int i = 0; i < depth; i++) {
SigSpec in, pat;
for (int j = 0; j < width; j++) {
if (table[2*i*width + 2*j + 0] == State::S1) {
in.append(ctrl[j]);
pat.append(State::S0);
}
if (table[2*i*width + 2*j + 1] == State::S1) {
in.append(ctrl[j]);
pat.append(State::S1);
}
}
products.append(GetSize(in) > 0 ? module->Eq(NEW_ID, in, pat) : State::S1);
}
module->connect(cell->getPort("\\Y"), module->ReduceOr(NEW_ID, products));
}
void simplemap_slice(RTLIL::Module *module, RTLIL::Cell *cell)
{
int offset = cell->parameters.at("\\OFFSET").as_int();
RTLIL::SigSpec sig_a = cell->getPort("\\A");
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
module->connect(RTLIL::SigSig(sig_y, sig_a.extract(offset, sig_y.size())));
}
void simplemap_concat(RTLIL::Module *module, RTLIL::Cell *cell)
{
RTLIL::SigSpec sig_ab = cell->getPort("\\A");
sig_ab.append(cell->getPort("\\B"));
RTLIL::SigSpec sig_y = cell->getPort("\\Y");
module->connect(RTLIL::SigSig(sig_y, sig_ab));
}
void simplemap_sr(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
char set_pol = cell->parameters.at("\\SET_POLARITY").as_bool() ? 'P' : 'N';
char clr_pol = cell->parameters.at("\\CLR_POLARITY").as_bool() ? 'P' : 'N';
RTLIL::SigSpec sig_s = cell->getPort("\\SET");
RTLIL::SigSpec sig_r = cell->getPort("\\CLR");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type = stringf("$_SR_%c%c_", set_pol, clr_pol);
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\S", sig_s[i]);
gate->setPort("\\R", sig_r[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_ff(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
RTLIL::SigSpec sig_d = cell->getPort("\\D");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type = "$_FF_";
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\D", sig_d[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_dff(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
RTLIL::SigSpec sig_d = cell->getPort("\\D");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type = stringf("$_DFF_%c_", clk_pol);
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\C", sig_clk);
gate->setPort("\\D", sig_d[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_dffe(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
char en_pol = cell->parameters.at("\\EN_POLARITY").as_bool() ? 'P' : 'N';
RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
RTLIL::SigSpec sig_en = cell->getPort("\\EN");
RTLIL::SigSpec sig_d = cell->getPort("\\D");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type = stringf("$_DFFE_%c%c_", clk_pol, en_pol);
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\C", sig_clk);
gate->setPort("\\E", sig_en);
gate->setPort("\\D", sig_d[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_dffsr(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
char set_pol = cell->parameters.at("\\SET_POLARITY").as_bool() ? 'P' : 'N';
char clr_pol = cell->parameters.at("\\CLR_POLARITY").as_bool() ? 'P' : 'N';
RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
RTLIL::SigSpec sig_s = cell->getPort("\\SET");
RTLIL::SigSpec sig_r = cell->getPort("\\CLR");
RTLIL::SigSpec sig_d = cell->getPort("\\D");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type = stringf("$_DFFSR_%c%c%c_", clk_pol, set_pol, clr_pol);
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\C", sig_clk);
gate->setPort("\\S", sig_s[i]);
gate->setPort("\\R", sig_r[i]);
gate->setPort("\\D", sig_d[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_adff(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
char clk_pol = cell->parameters.at("\\CLK_POLARITY").as_bool() ? 'P' : 'N';
char rst_pol = cell->parameters.at("\\ARST_POLARITY").as_bool() ? 'P' : 'N';
std::vector<RTLIL::State> rst_val = cell->parameters.at("\\ARST_VALUE").bits;
while (int(rst_val.size()) < width)
rst_val.push_back(RTLIL::State::S0);
RTLIL::SigSpec sig_clk = cell->getPort("\\CLK");
RTLIL::SigSpec sig_rst = cell->getPort("\\ARST");
RTLIL::SigSpec sig_d = cell->getPort("\\D");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type_0 = stringf("$_DFF_%c%c0_", clk_pol, rst_pol);
std::string gate_type_1 = stringf("$_DFF_%c%c1_", clk_pol, rst_pol);
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, rst_val.at(i) == RTLIL::State::S1 ? gate_type_1 : gate_type_0);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\C", sig_clk);
gate->setPort("\\R", sig_rst);
gate->setPort("\\D", sig_d[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_dlatch(RTLIL::Module *module, RTLIL::Cell *cell)
{
int width = cell->parameters.at("\\WIDTH").as_int();
char en_pol = cell->parameters.at("\\EN_POLARITY").as_bool() ? 'P' : 'N';
RTLIL::SigSpec sig_en = cell->getPort("\\EN");
RTLIL::SigSpec sig_d = cell->getPort("\\D");
RTLIL::SigSpec sig_q = cell->getPort("\\Q");
std::string gate_type = stringf("$_DLATCH_%c_", en_pol);
for (int i = 0; i < width; i++) {
RTLIL::Cell *gate = module->addCell(NEW_ID, gate_type);
gate->add_strpool_attribute("\\src", cell->get_strpool_attribute("\\src"));
gate->setPort("\\E", sig_en);
gate->setPort("\\D", sig_d[i]);
gate->setPort("\\Q", sig_q[i]);
}
}
void simplemap_get_mappers(std::map<RTLIL::IdString, void(*)(RTLIL::Module*, RTLIL::Cell*)> &mappers)
{
mappers["$not"] = simplemap_not;
mappers["$pos"] = simplemap_pos;
mappers["$and"] = simplemap_bitop;
mappers["$or"] = simplemap_bitop;
mappers["$xor"] = simplemap_bitop;
mappers["$xnor"] = simplemap_bitop;
mappers["$reduce_and"] = simplemap_reduce;
mappers["$reduce_or"] = simplemap_reduce;
mappers["$reduce_xor"] = simplemap_reduce;
mappers["$reduce_xnor"] = simplemap_reduce;
mappers["$reduce_bool"] = simplemap_reduce;
mappers["$logic_not"] = simplemap_lognot;
mappers["$logic_and"] = simplemap_logbin;
mappers["$logic_or"] = simplemap_logbin;
mappers["$eq"] = simplemap_eqne;
mappers["$eqx"] = simplemap_eqne;
mappers["$ne"] = simplemap_eqne;
mappers["$nex"] = simplemap_eqne;
mappers["$mux"] = simplemap_mux;
mappers["$tribuf"] = simplemap_tribuf;
mappers["$lut"] = simplemap_lut;
mappers["$sop"] = simplemap_sop;
mappers["$slice"] = simplemap_slice;
mappers["$concat"] = simplemap_concat;
mappers["$sr"] = simplemap_sr;
mappers["$ff"] = simplemap_ff;
mappers["$dff"] = simplemap_dff;
mappers["$dffe"] = simplemap_dffe;
mappers["$dffsr"] = simplemap_dffsr;
mappers["$adff"] = simplemap_adff;
mappers["$dlatch"] = simplemap_dlatch;
}
void simplemap(RTLIL::Module *module, RTLIL::Cell *cell)
{
static std::map<RTLIL::IdString, void(*)(RTLIL::Module*, RTLIL::Cell*)> mappers;
static bool initialized_mappers = false;
if (!initialized_mappers) {
simplemap_get_mappers(mappers);
initialized_mappers = true;
}
mappers.at(cell->type)(module, cell);
}
YOSYS_NAMESPACE_END
PRIVATE_NAMESPACE_BEGIN
struct SimplemapPass : public Pass {
SimplemapPass() : Pass("simplemap", "mapping simple coarse-grain cells") { }
void help() YS_OVERRIDE
{
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
log("\n");
log(" simplemap [selection]\n");
log("\n");
log("This pass maps a small selection of simple coarse-grain cells to yosys gate\n");
log("primitives. The following internal cell types are mapped by this pass:\n");
log("\n");
log(" $not, $pos, $and, $or, $xor, $xnor\n");
log(" $reduce_and, $reduce_or, $reduce_xor, $reduce_xnor, $reduce_bool\n");
log(" $logic_not, $logic_and, $logic_or, $mux, $tribuf\n");
log(" $sr, $ff, $dff, $dffsr, $adff, $dlatch\n");
log("\n");
}
void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE
{
log_header(design, "Executing SIMPLEMAP pass (map simple cells to gate primitives).\n");
extra_args(args, 1, design);
std::map<RTLIL::IdString, void(*)(RTLIL::Module*, RTLIL::Cell*)> mappers;
simplemap_get_mappers(mappers);
for (auto mod : design->modules()) {
if (!design->selected(mod) || mod->get_blackbox_attribute())
continue;
std::vector<RTLIL::Cell*> cells = mod->cells();
for (auto cell : cells) {
if (mappers.count(cell->type) == 0)
continue;
if (!design->selected(mod, cell))
continue;
log("Mapping %s.%s (%s).\n", log_id(mod), log_id(cell), log_id(cell->type));
mappers.at(cell->type)(mod, cell);
mod->remove(cell);
}
}
}
} SimplemapPass;
PRIVATE_NAMESPACE_END
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