* yosys -- Yosys Open SYnthesis Suite
*
* Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
- * Copyright (C) 2019 Eddie Hung <eddie@fpgeh.com>
+ * 2019 Eddie Hung <eddie@fpgeh.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#include "kernel/yosys.h"
#include "kernel/sigtools.h"
+#include "kernel/celltypes.h"
+#include "kernel/utils.h"
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
pool<SigBit> input_bits, output_bits;
dict<SigBit, SigBit> not_map, ff_map, alias_map;
dict<SigBit, pair<SigBit, SigBit>> and_map;
- pool<SigBit> initstate_bits;
- vector<std::pair<SigBit,int>> ci_bits, co_bits;
- dict<IdString, unsigned> type_map;
+ //pool<SigBit> initstate_bits;
+ vector<std::tuple<SigBit,RTLIL::Cell*,RTLIL::IdString,int>> ci_bits;
+ vector<std::tuple<SigBit,RTLIL::Cell*,RTLIL::IdString,int,int>> co_bits;
+ vector<std::pair<SigBit,SigBit>> ff_bits;
vector<pair<int, int>> aig_gates;
vector<int> aig_latchin, aig_latchinit, aig_outputs;
dict<SigBit, int> ordered_outputs;
dict<SigBit, int> ordered_latches;
- dict<SigBit, int> init_inputs;
- int initstate_ff = 0;
-
vector<Cell*> box_list;
+ //dict<SigBit, int> init_inputs;
+ //int initstate_ff = 0;
+
int mkgate(int a0, int a1)
{
aig_m++, aig_a++;
{
aig_map[bit] = -1;
- if (initstate_bits.count(bit)) {
- log_assert(initstate_ff > 0);
- aig_map[bit] = initstate_ff;
- } else
+ //if (initstate_bits.count(bit)) {
+ // log_assert(initstate_ff > 0);
+ // aig_map[bit] = initstate_ff;
+ //} else
if (not_map.count(bit)) {
int a = bit2aig(not_map.at(bit)) ^ 1;
aig_map[bit] = a;
return aig_map.at(bit);
}
- XAigerWriter(Module *module, bool zinit_mode, bool imode, bool omode, bool bmode) : module(module), zinit_mode(zinit_mode), sigmap(module)
+ XAigerWriter(Module *module, bool zinit_mode, bool imode, bool omode, bool holes_mode=false) : module(module), zinit_mode(zinit_mode), sigmap(module)
{
pool<SigBit> undriven_bits;
pool<SigBit> unused_bits;
init_map[initsig[i]] = initval[i] == State::S1;
}
+ bool keep = wire->attributes.count("\\keep");
+
for (int i = 0; i < GetSize(wire); i++)
{
SigBit wirebit(wire, i);
undriven_bits.insert(bit);
unused_bits.insert(bit);
- if (wire->port_input)
- input_bits.insert(bit);
+ if (wire->port_input || keep) {
+ if (bit != wirebit)
+ alias_map[bit] = wirebit;
+ input_bits.insert(wirebit);
+ }
- if (wire->port_output) {
+ if (wire->port_output || keep) {
if (bit != wirebit)
alias_map[wirebit] = bit;
output_bits.insert(wirebit);
}
}
- for (auto bit : input_bits) {
- if (!bit.wire->port_output)
- undriven_bits.erase(bit);
- // Erase POs that are also PIs
- output_bits.erase(bit);
- }
+ for (auto bit : input_bits)
+ undriven_bits.erase(sigmap(bit));
for (auto bit : output_bits)
if (!bit.wire->port_input)
unused_bits.erase(bit);
+ dict<SigBit, pool<IdString>> bit_drivers, bit_users;
+ TopoSort<IdString, RTLIL::sort_by_id_str> toposort;
+ bool abc_box_seen = false;
+
for (auto cell : module->cells())
{
+ RTLIL::Module* inst_module = module->design->module(cell->type);
+ bool builtin_type = yosys_celltypes.cell_known(cell->type);
+ bool abc_type = inst_module && inst_module->attributes.count("\\abc_box_id");
+
+ if (!holes_mode) {
+ toposort.node(cell->name);
+ for (const auto &conn : cell->connections()) {
+ if (!builtin_type && !abc_type)
+ continue;
+
+ if (!cell->type.in("$_NOT_", "$_AND_")) {
+ if (builtin_type) {
+ if (conn.first.in("\\Q", "\\CTRL_OUT", "\\RD_DATA"))
+ continue;
+ if (cell->type == "$memrd" && conn.first == "\\DATA")
+ continue;
+ }
+
+ if (inst_module) {
+ RTLIL::Wire* inst_module_port = inst_module->wire(conn.first);
+ log_assert(inst_module_port);
+
+ if (inst_module_port->port_output && inst_module_port->attributes.count("\\abc_flop_q"))
+ continue;
+ }
+ }
+
+ if (cell->input(conn.first)) {
+ // Ignore inout for the sake of topographical ordering
+ if (cell->output(conn.first)) continue;
+ for (auto bit : sigmap(conn.second))
+ bit_users[bit].insert(cell->name);
+ }
+
+ if (cell->output(conn.first))
+ for (auto bit : sigmap(conn.second))
+ bit_drivers[bit].insert(cell->name);
+ }
+ }
+
if (cell->type == "$_NOT_")
{
SigBit A = sigmap(cell->getPort("\\A").as_bit());
continue;
}
- if (cell->type == "$initstate")
- {
- SigBit Y = sigmap(cell->getPort("\\Y").as_bit());
- undriven_bits.erase(Y);
- initstate_bits.insert(Y);
- continue;
- }
-
- RTLIL::Module* box_module = module->design->module(cell->type);
- bool abc_box = box_module && box_module->attributes.count("\\abc_box_id");
+ //if (cell->type == "$initstate")
+ //{
+ // SigBit Y = sigmap(cell->getPort("\\Y").as_bit());
+ // undriven_bits.erase(Y);
+ // initstate_bits.insert(Y);
+ // continue;
+ //}
- for (const auto &c : cell->connections()) {
- /*if (c.second.is_fully_const()) continue;*/
- for (auto b : c.second.bits()) {
+ bool inst_flop = inst_module ? inst_module->attributes.count("\\abc_flop") : false;
+ if (inst_flop) {
+ SigBit d, q;
+ for (const auto &c : cell->connections()) {
auto is_input = cell->input(c.first);
auto is_output = cell->output(c.first);
log_assert(is_input || is_output);
- if (is_input) {
- /*if (!w->port_input)*/ {
+ RTLIL::Wire* port = inst_module->wire(c.first);
+ for (auto b : c.second.bits()) {
+ if (is_input && port->attributes.count("\\abc_flop_d")) {
+ d = b;
+ SigBit I = sigmap(d);
+ if (I != d)
+ alias_map[I] = d;
+ unused_bits.erase(d);
+ }
+ if (is_output && port->attributes.count("\\abc_flop_q")) {
+ q = b;
+ SigBit O = sigmap(q);
+ if (O != q)
+ alias_map[O] = q;
+ undriven_bits.erase(O);
+ }
+ }
+ }
+ if (!abc_box_seen)
+ abc_box_seen = inst_module->attributes.count("\\abc_box_id");
+
+ ff_bits.emplace_back(d, q);
+ }
+ else if (inst_module && inst_module->attributes.count("\\abc_box_id")) {
+ abc_box_seen = true;
+ }
+ else {
+ for (const auto &c : cell->connections()) {
+ if (c.second.is_fully_const()) continue;
+ for (auto b : c.second.bits()) {
+ Wire *w = b.wire;
+ if (!w) continue;
+ auto is_input = cell->input(c.first);
+ auto is_output = cell->output(c.first);
+ log_assert(is_input || is_output);
+ if (is_input) {
+ if (!w->port_input) {
+ SigBit I = sigmap(b);
+ if (I != b)
+ alias_map[b] = I;
+ output_bits.insert(b);
+ unused_bits.erase(b);
+ }
+ }
+ if (is_output) {
+ input_bits.insert(b);
+ SigBit O = sigmap(b);
+ if (O != b)
+ alias_map[O] = b;
+ undriven_bits.erase(O);
+ }
+ }
+ }
+ }
+
+ //log_warning("Unsupported cell type: %s (%s)\n", log_id(cell->type), log_id(cell));
+ }
+
+ if (abc_box_seen) {
+ for (auto &it : bit_users)
+ if (bit_drivers.count(it.first))
+ for (auto driver_cell : bit_drivers.at(it.first))
+ for (auto user_cell : it.second)
+ toposort.edge(driver_cell, user_cell);
+
+ pool<RTLIL::Module*> abc_carry_modules;
+
+#if 0
+ toposort.analyze_loops = true;
+#endif
+ bool no_loops = toposort.sort();
+#if 0
+ unsigned i = 0;
+ for (auto &it : toposort.loops) {
+ log(" loop %d", i++);
+ for (auto cell : it)
+ log(" %s", log_id(cell));
+ log("\n");
+ }
+#endif
+ log_assert(no_loops);
+
+ for (auto cell_name : toposort.sorted) {
+ RTLIL::Cell *cell = module->cell(cell_name);
+ RTLIL::Module* box_module = module->design->module(cell->type);
+ if (!box_module || !box_module->attributes.count("\\abc_box_id"))
+ continue;
+
+ if (box_module->attributes.count("\\abc_carry") && !abc_carry_modules.count(box_module)) {
+ RTLIL::Wire* carry_in = nullptr, *carry_out = nullptr;
+ RTLIL::Wire* last_in = nullptr, *last_out = nullptr;
+ for (const auto &port_name : box_module->ports) {
+ RTLIL::Wire* w = box_module->wire(port_name);
+ log_assert(w);
+ if (w->port_input) {
+ if (w->attributes.count("\\abc_carry_in")) {
+ log_assert(!carry_in);
+ carry_in = w;
+ }
+ log_assert(!last_in || last_in->port_id < w->port_id);
+ last_in = w;
+ }
+ if (w->port_output) {
+ if (w->attributes.count("\\abc_carry_out")) {
+ log_assert(!carry_out);
+ carry_out = w;
+ }
+ log_assert(!last_out || last_out->port_id < w->port_id);
+ last_out = w;
+ }
+ }
+
+ if (carry_in) {
+ log_assert(last_in);
+ std::swap(box_module->ports[carry_in->port_id-1], box_module->ports[last_in->port_id-1]);
+ std::swap(carry_in->port_id, last_in->port_id);
+ }
+ if (carry_out) {
+ log_assert(last_out);
+ std::swap(box_module->ports[carry_out->port_id-1], box_module->ports[last_out->port_id-1]);
+ std::swap(carry_out->port_id, last_out->port_id);
+ }
+ }
+
+ // Fully pad all unused input connections of this box cell with S0
+ // Fully pad all undriven output connections of this box cell with anonymous wires
+ // NB: Assume box_module->ports are sorted alphabetically
+ // (as RTLIL::Module::fixup_ports() would do)
+ for (const auto &port_name : box_module->ports) {
+ RTLIL::Wire* w = box_module->wire(port_name);
+ log_assert(w);
+ auto it = cell->connections_.find(port_name);
+ if (w->port_input) {
+ RTLIL::SigSpec rhs;
+ if (it != cell->connections_.end()) {
+ if (GetSize(it->second) < GetSize(w))
+ it->second.append(RTLIL::SigSpec(RTLIL::S0, GetSize(w)-GetSize(it->second)));
+ rhs = it->second;
+ }
+ else {
+ rhs = RTLIL::SigSpec(RTLIL::S0, GetSize(w));
+ cell->setPort(port_name, rhs);
+ }
+
+ int offset = 0;
+ for (const auto &b : rhs.bits()) {
SigBit I = sigmap(b);
if (I != b)
alias_map[b] = I;
- /*if (!output_bits.count(b))*/
- if (abc_box)
- co_bits.emplace_back(b, 0);
- else {
- output_bits.insert(b);
- if (!b.wire->port_input)
- unused_bits.erase(b);
- }
+ co_bits.emplace_back(b, cell, port_name, offset++, 0);
+ unused_bits.erase(b);
}
}
- if (is_output) {
- SigBit O = sigmap(b);
- /*if (!input_bits.count(O))*/
- if (abc_box)
- ci_bits.emplace_back(O, 0);
+ if (w->port_output) {
+ RTLIL::SigSpec rhs;
+ auto it = cell->connections_.find(w->name);
+ if (it != cell->connections_.end()) {
+ if (GetSize(it->second) < GetSize(w))
+ it->second.append(module->addWire(NEW_ID, GetSize(w)-GetSize(it->second)));
+ rhs = it->second;
+ }
else {
- input_bits.insert(O);
- if (!O.wire->port_output)
- undriven_bits.erase(O);
+ rhs = module->addWire(NEW_ID, GetSize(w));
+ cell->setPort(port_name, rhs);
+ }
+
+ int offset = 0;
+ for (const auto &b : rhs.bits()) {
+ ci_bits.emplace_back(b, cell, port_name, offset++);
+ SigBit O = sigmap(b);
+ if (O != b)
+ alias_map[O] = b;
+ undriven_bits.erase(O);
+
+ auto jt = input_bits.find(b);
+ if (jt != input_bits.end()) {
+ log_assert(b.wire->attributes.count("\\keep"));
+ input_bits.erase(b);
+ }
}
}
}
- if (!type_map.count(cell->type))
- type_map[cell->type] = type_map.size()+1;
+ box_list.emplace_back(cell);
}
- if (abc_box)
- box_list.emplace_back(cell);
- //log_warning("Unsupported cell type: %s (%s)\n", log_id(cell->type), log_id(cell));
+ // TODO: Free memory from toposort, bit_drivers, bit_users
}
for (auto bit : input_bits) {
RTLIL::Wire *wire = bit.wire;
- // If encountering an inout port, then create a new wire with $inout.out
- // suffix, make it a PO driven by the existing inout, and inherit existing
- // inout's drivers
- if (wire->port_input && wire->port_output && !undriven_bits.count(bit)) {
- RTLIL::Wire *new_wire = module->wire(wire->name.str() + "$inout.out");
+ // If encountering an inout port, or a keep-ed wire, then create a new wire
+ // with $inout.out suffix, make it a PO driven by the existing inout, and
+ // inherit existing inout's drivers
+ if ((wire->port_input && wire->port_output && !undriven_bits.count(bit))
+ || wire->attributes.count("\\keep")) {
+ log_assert(input_bits.count(bit) && output_bits.count(bit));
+ RTLIL::IdString wire_name = wire->name.str() + "$inout.out";
+ RTLIL::Wire *new_wire = module->wire(wire_name);
if (!new_wire)
- new_wire = module->addWire(wire->name.str() + "$inout.out", GetSize(wire));
+ new_wire = module->addWire(wire_name, GetSize(wire));
SigBit new_bit(new_wire, bit.offset);
module->connect(new_bit, bit);
if (not_map.count(bit))
and_map[new_bit] = and_map.at(bit);
else if (alias_map.count(bit))
alias_map[new_bit] = alias_map.at(bit);
+ else
+ //log_abort();
+ alias_map[new_bit] = bit;
+ output_bits.erase(bit);
output_bits.insert(new_bit);
}
}
- // Do some CI/CO post-processing:
- // Erase all POs and COs that are undriven
- for (auto bit : undriven_bits) {
- //co_bits.erase(bit);
- output_bits.erase(bit);
- }
- // Erase all CIs that are also COs
- //for (auto bit : co_bits)
- // ci_bits.erase(bit);
- // CIs cannot be undriven
- for (const auto &c : ci_bits)
- undriven_bits.erase(c.first);
-
+ // Erase all POs that are undriven
+ if (!holes_mode)
+ for (auto bit : undriven_bits)
+ output_bits.erase(bit);
for (auto bit : unused_bits)
undriven_bits.erase(bit);
- if (!undriven_bits.empty()) {
+ if (!undriven_bits.empty() && !holes_mode) {
undriven_bits.sort();
for (auto bit : undriven_bits) {
log_warning("Treating undriven bit %s.%s like $anyseq.\n", log_id(module), log_signal(bit));
}
init_map.sort();
- input_bits.sort();
- output_bits.sort();
+ if (holes_mode) {
+ struct sort_by_port_id {
+ bool operator()(const RTLIL::SigBit& a, const RTLIL::SigBit& b) const {
+ return a.wire->port_id < b.wire->port_id;
+ }
+ };
+ input_bits.sort(sort_by_port_id());
+ output_bits.sort(sort_by_port_id());
+ }
+ else {
+ input_bits.sort();
+ output_bits.sort();
+ }
+
not_map.sort();
ff_map.sort();
and_map.sort();
aig_map[State::S0] = 0;
aig_map[State::S1] = 1;
- for (auto &c : ci_bits) {
+ for (auto bit : input_bits) {
aig_m++, aig_i++;
- c.second = 2*aig_m;
- aig_map[c.first] = c.second;
+ log_assert(!aig_map.count(bit));
+ aig_map[bit] = 2*aig_m;
}
- for (auto bit : input_bits) {
+ for (auto &f : ff_bits) {
+ RTLIL::SigBit bit = f.second;
aig_m++, aig_i++;
+ log_assert(!aig_map.count(bit));
aig_map[bit] = 2*aig_m;
}
- if (imode && input_bits.empty()) {
+ dict<SigBit, int> ff_aig_map;
+ for (auto &c : ci_bits) {
+ RTLIL::SigBit bit = std::get<0>(c);
aig_m++, aig_i++;
+ auto r = aig_map.insert(std::make_pair(bit, 2*aig_m));
+ if (!r.second)
+ ff_aig_map[bit] = 2*aig_m;
}
- if (zinit_mode)
- {
- for (auto it : ff_map) {
- if (init_map.count(it.first))
- continue;
- aig_m++, aig_i++;
- init_inputs[it.first] = 2*aig_m;
- }
+ if (imode && input_bits.empty()) {
+ aig_m++, aig_i++;
}
+ //if (zinit_mode)
+ //{
+ // for (auto it : ff_map) {
+ // if (init_map.count(it.first))
+ // continue;
+ // aig_m++, aig_i++;
+ // init_inputs[it.first] = 2*aig_m;
+ // }
+ //}
+
for (auto it : ff_map) {
aig_m++, aig_l++;
aig_map[it.first] = 2*aig_m;
aig_latchinit.push_back(init_map.at(it.first) ? 1 : 0);
}
- if (!initstate_bits.empty() || !init_inputs.empty()) {
- aig_m++, aig_l++;
- initstate_ff = 2*aig_m+1;
- aig_latchinit.push_back(0);
- }
-
- if (zinit_mode)
- {
- for (auto it : ff_map)
- {
- int l = ordered_latches[it.first];
-
- if (aig_latchinit.at(l) == 1)
- aig_map[it.first] ^= 1;
-
- if (aig_latchinit.at(l) == 2)
- {
- int gated_ffout = mkgate(aig_map[it.first], initstate_ff^1);
- int gated_initin = mkgate(init_inputs[it.first], initstate_ff);
- aig_map[it.first] = mkgate(gated_ffout^1, gated_initin^1)^1;
- }
- }
- }
+ //if (!initstate_bits.empty() || !init_inputs.empty()) {
+ // aig_m++, aig_l++;
+ // initstate_ff = 2*aig_m+1;
+ // aig_latchinit.push_back(0);
+ //}
+
+ //if (zinit_mode)
+ //{
+ // for (auto it : ff_map)
+ // {
+ // int l = ordered_latches[it.first];
+
+ // if (aig_latchinit.at(l) == 1)
+ // aig_map[it.first] ^= 1;
+
+ // if (aig_latchinit.at(l) == 2)
+ // {
+ // int gated_ffout = mkgate(aig_map[it.first], initstate_ff^1);
+ // int gated_initin = mkgate(init_inputs[it.first], initstate_ff);
+ // aig_map[it.first] = mkgate(gated_ffout^1, gated_initin^1)^1;
+ // }
+ // }
+ //}
for (auto it : ff_map) {
int a = bit2aig(it.second);
aig_latchin.push_back(a);
}
- if (!initstate_bits.empty() || !init_inputs.empty())
- aig_latchin.push_back(1);
+ //if (!initstate_bits.empty() || !init_inputs.empty())
+ // aig_latchin.push_back(1);
for (auto &c : co_bits) {
- RTLIL::SigBit bit = c.first;
- c.second = aig_o++;
- ordered_outputs[bit] = c.second;
+ RTLIL::SigBit bit = std::get<0>(c);
+ std::get<4>(c) = ordered_outputs[bit] = aig_o++;
aig_outputs.push_back(bit2aig(bit));
}
aig_outputs.push_back(bit2aig(bit));
}
- if (omode && output_bits.empty()) {
+ for (auto &f : ff_bits) {
aig_o++;
- aig_outputs.push_back(0);
+ RTLIL::SigBit bit = f.second;
+ aig_outputs.push_back(ff_aig_map.at(bit));
}
- if (bmode) {
- //aig_b++;
+ if (omode && output_bits.empty()) {
+ aig_o++;
aig_outputs.push_back(0);
}
}
- void write_aiger(std::ostream &f, bool ascii_mode, bool miter_mode, bool symbols_mode, bool omode)
+ void write_aiger(std::ostream &f, bool ascii_mode, bool omode)
{
int aig_obc = aig_o;
int aig_obcj = aig_obc;
}
}
- if (symbols_mode)
- {
- dict<string, vector<string>> symbols;
-
- bool output_seen = false;
- for (auto wire : module->wires())
- {
- //if (wire->name[0] == '$')
- // continue;
-
- SigSpec sig = sigmap(wire);
-
- for (int i = 0; i < GetSize(wire); i++)
- {
- RTLIL::SigBit b(wire, i);
- if (input_bits.count(b)) {
- int a = aig_map.at(sig[i]);
- log_assert((a & 1) == 0);
- if (GetSize(wire) != 1)
- symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("%s[%d]", log_id(wire), i));
- else
- symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("%s", log_id(wire)));
- }
-
- if (output_bits.count(b)) {
- int o = ordered_outputs.at(b);
- output_seen = !miter_mode;
- if (GetSize(wire) != 1)
- symbols[stringf("%c%d", miter_mode ? 'b' : 'o', o)].push_back(stringf("%s[%d]", log_id(wire), i));
- else
- symbols[stringf("%c%d", miter_mode ? 'b' : 'o', o)].push_back(stringf("%s", log_id(wire)));
- }
-
- if (init_inputs.count(sig[i])) {
- int a = init_inputs.at(sig[i]);
- log_assert((a & 1) == 0);
- if (GetSize(wire) != 1)
- symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("init:%s[%d]", log_id(wire), i));
- else
- symbols[stringf("i%d", (a >> 1)-1)].push_back(stringf("init:%s", log_id(wire)));
- }
-
- if (ordered_latches.count(sig[i])) {
- int l = ordered_latches.at(sig[i]);
- const char *p = (zinit_mode && (aig_latchinit.at(l) == 1)) ? "!" : "";
- if (GetSize(wire) != 1)
- symbols[stringf("l%d", l)].push_back(stringf("%s%s[%d]", p, log_id(wire), i));
- else
- symbols[stringf("l%d", l)].push_back(stringf("%s%s", p, log_id(wire)));
- }
- }
- }
-
- if (omode && !output_seen)
- symbols["o0"].push_back("__dummy_o__");
-
- symbols.sort();
-
- for (auto &sym : symbols) {
- f << sym.first;
- std::sort(sym.second.begin(), sym.second.end());
- for (auto &s : sym.second)
- f << " " << s;
- f << std::endl;
- }
- }
-
f << "c";
- if (!box_list.empty()) {
+ if (!box_list.empty() || !ff_bits.empty()) {
std::stringstream h_buffer;
auto write_h_buffer = [&h_buffer](int i32) {
// TODO: Don't assume we're on little endian
if (omode && num_outputs == 0)
num_outputs = 1;
write_h_buffer(1);
- write_h_buffer(input_bits.size() + ci_bits.size());
- write_h_buffer(num_outputs + co_bits.size());
- write_h_buffer(input_bits.size());
- write_h_buffer(num_outputs);
+ log_debug("ciNum = %zu\n", input_bits.size() + ff_bits.size() + ci_bits.size());
+ write_h_buffer(input_bits.size() + ff_bits.size() + ci_bits.size());
+ log_debug("coNum = %zu\n", num_outputs + ff_bits.size() + co_bits.size());
+ write_h_buffer(num_outputs + ff_bits.size()+ co_bits.size());
+ log_debug("piNum = %zu\n", input_bits.size() + ff_bits.size());
+ write_h_buffer(input_bits.size()+ ff_bits.size());
+ log_debug("poNum = %zu\n", num_outputs + ff_bits.size());
+ write_h_buffer(num_outputs + ff_bits.size());
+ log_debug("boxNum = %zu\n", box_list.size());
write_h_buffer(box_list.size());
RTLIL::Module *holes_module = nullptr;
holes_module = module->design->addModule("\\__holes__");
-
+ log_assert(holes_module);
+
+ int port_id = 1;
+ int box_count = 0;
for (auto cell : box_list) {
+ RTLIL::Module* box_module = module->design->module(cell->type);
int box_inputs = 0, box_outputs = 0;
- int box_id = module->design->module(cell->type)->attributes.at("\\abc_box_id").as_int();
Cell *holes_cell = nullptr;
- if (holes_module && !holes_module->cell(stringf("\\u%d", box_id)))
- holes_cell = holes_module->addCell(stringf("\\u%d", box_id), cell->type);
- RTLIL::Wire *holes_wire;
- int num_inputs = 0;
- for (const auto &c : cell->connections()) {
- if (cell->input(c.first)) {
- box_inputs += c.second.size();
- if (holes_cell) {
- holes_wire = holes_module->wire(stringf("\\i%d", num_inputs++));
+ if (box_module->get_bool_attribute("\\whitebox")) {
+ holes_cell = holes_module->addCell(cell->name, cell->type);
+ holes_cell->parameters = cell->parameters;
+ }
+
+ // NB: Assume box_module->ports are sorted alphabetically
+ // (as RTLIL::Module::fixup_ports() would do)
+ for (const auto &port_name : box_module->ports) {
+ RTLIL::Wire *w = box_module->wire(port_name);
+ log_assert(w);
+ RTLIL::Wire *holes_wire;
+ RTLIL::SigSpec port_wire;
+ if (w->port_input) {
+ for (int i = 0; i < GetSize(w); i++) {
+ box_inputs++;
+ holes_wire = holes_module->wire(stringf("\\i%d", box_inputs));
if (!holes_wire) {
- holes_wire = holes_module->addWire(stringf("\\i%d", num_inputs));
+ holes_wire = holes_module->addWire(stringf("\\i%d", box_inputs));
holes_wire->port_input = true;
+ holes_wire->port_id = port_id++;
+ holes_module->ports.push_back(holes_wire->name);
}
- holes_cell->setPort(c.first, holes_wire);
+ if (holes_cell)
+ port_wire.append(holes_wire);
}
+ if (!port_wire.empty())
+ holes_cell->setPort(w->name, port_wire);
}
- if (cell->output(c.first)) {
- box_outputs += c.second.size();
- if (holes_cell) {
- holes_wire = holes_module->addWire(stringf("\\%s.%s", cell->type.c_str(), c.first.c_str()));
+ if (w->port_output) {
+ box_outputs += GetSize(w);
+ for (int i = 0; i < GetSize(w); i++) {
+ if (GetSize(w) == 1)
+ holes_wire = holes_module->addWire(stringf("%s.%s", cell->name.c_str(), w->name.c_str()));
+ else
+ holes_wire = holes_module->addWire(stringf("%s.%s[%d]", cell->name.c_str(), w->name.c_str(), i));
holes_wire->port_output = true;
- holes_cell->setPort(c.first, holes_wire);
+ holes_wire->port_id = port_id++;
+ holes_module->ports.push_back(holes_wire->name);
+ if (holes_cell)
+ port_wire.append(holes_wire);
+ else
+ holes_module->connect(holes_wire, RTLIL::S0);
}
+ if (!port_wire.empty())
+ holes_cell->setPort(w->name, port_wire);
}
}
+
write_h_buffer(box_inputs);
write_h_buffer(box_outputs);
- write_h_buffer(box_id);
- write_h_buffer(0 /* OldBoxNum */);
+ write_h_buffer(box_module->attributes.at("\\abc_box_id").as_int());
+ write_h_buffer(box_count++);
}
f << "h";
f.write(reinterpret_cast<const char*>(&buffer_size_be), sizeof(buffer_size_be));
f.write(buffer_str.data(), buffer_str.size());
+ /*if (!ff_bits.empty())*/ {
+ std::stringstream r_buffer;
+ auto write_r_buffer = [&r_buffer](int i32) {
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ int i32_be = _byteswap_ulong(i32);
+#else
+ int i32_be = __builtin_bswap32(i32);
+#endif
+ r_buffer.write(reinterpret_cast<const char*>(&i32_be), sizeof(i32_be));
+ };
+ log_debug("flopNum = %zu\n", ff_bits.size());
+ write_r_buffer(ff_bits.size());
+ int mergeability_class = 1;
+ for (auto cell : ff_bits)
+ write_r_buffer(mergeability_class++);
+
+ f << "r";
+ std::string buffer_str = r_buffer.str();
+ // TODO: Don't assume we're on little endian
+#ifdef _WIN32
+ int buffer_size_be = _byteswap_ulong(buffer_str.size());
+#else
+ int buffer_size_be = __builtin_bswap32(buffer_str.size());
+#endif
+ f.write(reinterpret_cast<const char*>(&buffer_size_be), sizeof(buffer_size_be));
+ f.write(buffer_str.data(), buffer_str.size());
+ }
+
if (holes_module) {
- holes_module->fixup_ports();
+ // NB: fixup_ports() will sort ports by name
+ //holes_module->fixup_ports();
+ holes_module->check();
holes_module->design->selection_stack.emplace_back(false);
RTLIL::Selection& sel = holes_module->design->selection_stack.back();
sel.select(holes_module);
- Pass::call(holes_module->design, "flatten; aigmap; write_verilog -noexpr -norename holes.v");
+ // TODO: Should not need to opt_merge if we only instantiate
+ // each box type once...
+ Pass::call(holes_module->design, "opt_merge -share_all");
+
+ Pass::call(holes_module->design, "flatten -wb");
+
+ // TODO: Should techmap all lib_whitebox-es once
+ //Pass::call(holes_module->design, "techmap");
+
+ Pass::call(holes_module->design, "aigmap");
+ Pass::call(holes_module->design, "clean -purge");
holes_module->design->selection_stack.pop_back();
std::stringstream a_buffer;
- XAigerWriter writer(holes_module, false /*zinit_mode*/, false /*imode*/, false /*omode*/, false /*bmode*/);
- writer.write_aiger(a_buffer, false /*ascii_mode*/, false /*miter_mode*/, false /*symbols_mode*/, false /*omode*/);
+ XAigerWriter writer(holes_module, false /*zinit_mode*/, false /*imode*/, false /*omode*/, true /* holes_mode */);
+ writer.write_aiger(a_buffer, false /*ascii_mode*/, false /* omode */);
f << "a";
std::string buffer_str = a_buffer.str();
{
RTLIL::SigBit b(wire, i);
if (input_bits.count(b)) {
- int a = aig_map.at(sig[i]);
+ int a = aig_map.at(b);
log_assert((a & 1) == 0);
input_lines[a] += stringf("input %d %d %s\n", (a >> 1)-1, i, log_id(wire));
}
if (output_bits.count(b)) {
int o = ordered_outputs.at(b);
- output_lines[o] += stringf("output %d %d %s\n", o, i, log_id(wire));
+ output_lines[o] += stringf("output %lu %d %s\n", o - co_bits.size(), i, log_id(wire));
continue;
}
- if (init_inputs.count(sig[i])) {
- int a = init_inputs.at(sig[i]);
- log_assert((a & 1) == 0);
- init_lines[a] += stringf("init %d %d %s\n", (a >> 1)-1, i, log_id(wire));
- continue;
- }
+ //if (init_inputs.count(sig[i])) {
+ // int a = init_inputs.at(sig[i]);
+ // log_assert((a & 1) == 0);
+ // init_lines[a] += stringf("init %d %d %s\n", (a >> 1)-1, i, log_id(wire));
+ // continue;
+ //}
if (ordered_latches.count(sig[i])) {
int l = ordered_latches.at(sig[i]);
}
}
- for (const auto &c : ci_bits) {
- RTLIL::SigBit b = c.first;
- RTLIL::Wire *wire = b.wire;
- int i = b.offset;
- int a = c.second;
- log_assert((a & 1) == 0);
- input_lines[a] += stringf("input %d %d %s\n", (a >> 1)-1, i, log_id(wire));
- }
-
- for (const auto &c : co_bits) {
- RTLIL::SigBit b = c.first;
- RTLIL::Wire *wire = b.wire;
- int o = c.second;
- if (wire)
- output_lines[o] += stringf("output %d %d %s\n", o, b.offset, log_id(wire));
- else
- output_lines[o] += stringf("output %d %d __const%d__\n", o, 0, b.data);
- }
-
input_lines.sort();
for (auto &it : input_lines)
f << it.second;
- log_assert(input_lines.size() == input_bits.size() + ci_bits.size());
+ log_assert(input_lines.size() == input_bits.size());
init_lines.sort();
for (auto &it : init_lines)
f << it.second;
+ int box_count = 0;
+ for (auto cell : box_list)
+ f << stringf("box %d %d %s\n", box_count++, 0, log_id(cell->name));
+
output_lines.sort();
for (auto &it : output_lines)
f << it.second;
- log_assert(output_lines.size() == output_bits.size() + co_bits.size());
+ log_assert(output_lines.size() == output_bits.size());
if (omode && output_bits.empty())
f << "output " << output_lines.size() << " 0 __dummy_o__\n";
log("all unsupported cells will be converted into psuedo-inputs and pseudo-outputs.\n");
log("\n");
log(" -ascii\n");
- log(" write ASCII version of AGIER format\n");
+ log(" write ASCII version of AIGER format\n");
log("\n");
log(" -zinit\n");
log(" convert FFs to zero-initialized FFs, adding additional inputs for\n");
log(" uninitialized FFs.\n");
log("\n");
- log(" -symbols\n");
- log(" include a symbol table in the generated AIGER file\n");
- log("\n");
log(" -map <filename>\n");
log(" write an extra file with port and latch symbols\n");
log("\n");
{
bool ascii_mode = false;
bool zinit_mode = false;
- bool miter_mode = false;
- bool symbols_mode = false;
bool verbose_map = false;
bool imode = false;
bool omode = false;
- bool bmode = false;
std::string map_filename;
log_header(design, "Executing XAIGER backend.\n");
zinit_mode = true;
continue;
}
- if (args[argidx] == "-symbols") {
- symbols_mode = true;
- continue;
- }
if (map_filename.empty() && args[argidx] == "-map" && argidx+1 < args.size()) {
map_filename = args[++argidx];
continue;
omode = true;
continue;
}
- if (args[argidx] == "-B") {
- bmode = true;
- continue;
- }
break;
}
extra_args(f, filename, args, argidx);
if (top_module == nullptr)
log_error("Can't find top module in current design!\n");
- XAigerWriter writer(top_module, zinit_mode, imode, omode, bmode);
- writer.write_aiger(*f, ascii_mode, miter_mode, symbols_mode, omode);
+ XAigerWriter writer(top_module, zinit_mode, imode, omode);
+ writer.write_aiger(*f, ascii_mode, omode);
if (!map_filename.empty()) {
std::ofstream mapf;
projects / yosys.git / blobdiff