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Be more conservative with net names in spice output

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This commit is contained in:
Clifford Wolf 2016-03-02 12:02:59 +01:00
parent b36cad75f6
commit 5547fae4cf
1 changed files with 47 additions and 18 deletions
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65
backends/spice/spice.cc
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@ -27,13 +27,33 @@
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
static void print_spice_net(std::ostream &f, RTLIL::SigBit s, std::string &neg, std::string &pos, std::string &ncpf, int &nc_counter)
static string spice_id2str(IdString id)
{
static const char *escape_chars = "$\\[]()<>";
string s = RTLIL::unescape_id(id);
for (auto &ch : s)
if (strchr(escape_chars, ch) != nullptr) ch = '_';
return s;
}
static string spice_id2str(IdString id, bool use_inames, idict<IdString, 1> &inums)
{
if (!use_inames && *id.c_str() == '$')
return stringf("%d", inums(id));
return spice_id2str(id);
}
static void print_spice_net(std::ostream &f, RTLIL::SigBit s, std::string &neg, std::string &pos, std::string &ncpf, int &nc_counter, bool use_inames, idict<IdString, 1> &inums)
{
if (s.wire) {
if (s.wire->port_id)
use_inames = true;
if (s.wire->width > 1)
f << stringf(" %s[%d]", RTLIL::id2cstr(s.wire->name), s.offset);
f << stringf(" %s.%d", spice_id2str(s.wire->name, use_inames, inums).c_str(), s.offset);
else
f << stringf(" %s", RTLIL::id2cstr(s.wire->name));
f << stringf(" %s", spice_id2str(s.wire->name, use_inames, inums).c_str());
} else {
if (s == RTLIL::State::S0)
f << stringf(" %s", neg.c_str());
@ -44,9 +64,10 @@ static void print_spice_net(std::ostream &f, RTLIL::SigBit s, std::string &neg,
}
}
static void print_spice_module(std::ostream &f, RTLIL::Module *module, RTLIL::Design *design, std::string &neg, std::string &pos, std::string &ncpf, bool big_endian)
static void print_spice_module(std::ostream &f, RTLIL::Module *module, RTLIL::Design *design, std::string &neg, std::string &pos, std::string &ncpf, bool big_endian, bool use_inames)
{
SigMap sigmap(module);
idict<IdString, 1> inums;
int cell_counter = 0, conn_counter = 0, nc_counter = 0;
for (auto &cell_it : module->cells_)
@ -59,7 +80,7 @@ static void print_spice_module(std::ostream &f, RTLIL::Module *module, RTLIL::De
if (design->modules_.count(cell->type) == 0)
{
log_warning("no (blackbox) module for cell type `%s' (%s.%s) found! Guessing order of ports.\n",
RTLIL::id2cstr(cell->type), RTLIL::id2cstr(module->name), RTLIL::id2cstr(cell->name));
log_id(cell->type), log_id(module), log_id(cell));
for (auto &conn : cell->connections()) {
RTLIL::SigSpec sig = sigmap(conn.second);
port_sigs.push_back(sig);
@ -93,18 +114,18 @@ static void print_spice_module(std::ostream &f, RTLIL::Module *module, RTLIL::De
for (auto &sig : port_sigs) {
for (int i = 0; i < sig.size(); i++) {
RTLIL::SigSpec s = sig.extract(big_endian ? sig.size() - 1 - i : i, 1);
print_spice_net(f, s, neg, pos, ncpf, nc_counter);
print_spice_net(f, s, neg, pos, ncpf, nc_counter, use_inames, inums);
}
}
f << stringf(" %s\n", RTLIL::id2cstr(cell->type));
f << stringf(" %s\n", spice_id2str(cell->type).c_str());
}
for (auto &conn : module->connections())
for (int i = 0; i < conn.first.size(); i++) {
f << stringf("V%d", conn_counter++);
print_spice_net(f, conn.first.extract(i, 1), neg, pos, ncpf, nc_counter);
print_spice_net(f, conn.second.extract(i, 1), neg, pos, ncpf, nc_counter);
print_spice_net(f, conn.first.extract(i, 1), neg, pos, ncpf, nc_counter, use_inames, inums);
print_spice_net(f, conn.second.extract(i, 1), neg, pos, ncpf, nc_counter, use_inames, inums);
f << stringf(" DC 0\n");
}
}
@ -132,6 +153,10 @@ struct SpiceBackend : public Backend {
log(" -nc_prefix\n");
log(" prefix for not-connected nets (default: _NC)\n");
log("\n");
log(" -inames\n");
log(" include names of internal ($-prefixed) nets in outputs\n");
log(" (default is to use net numbers instead)\n");
log("\n");
log(" -top top_module\n");
log(" set the specified module as design top module\n");
log("\n");
@ -140,7 +165,7 @@ struct SpiceBackend : public Backend {
{
std::string top_module_name;
RTLIL::Module *top_module = NULL;
bool big_endian = false;
bool big_endian = false, use_inames = false;
std::string neg = "Vss", pos = "Vdd", ncpf = "_NC";
log_header("Executing SPICE backend.\n");
@ -152,6 +177,10 @@ struct SpiceBackend : public Backend {
big_endian = true;
continue;
}
if (args[argidx] == "-inames") {
use_inames = true;
continue;
}
if (args[argidx] == "-neg" && argidx+1 < args.size()) {
neg = args[++argidx];
continue;
@ -187,9 +216,9 @@ struct SpiceBackend : public Backend {
continue;
if (module->processes.size() != 0)
log_error("Found unmapped processes in module %s: unmapped processes are not supported in SPICE backend!\n", RTLIL::id2cstr(module->name));
log_error("Found unmapped processes in module %s: unmapped processes are not supported in SPICE backend!\n", log_id(module));
if (module->memories.size() != 0)
log_error("Found munmapped emories in module %s: unmapped memories are not supported in SPICE backend!\n", RTLIL::id2cstr(module->name));
log_error("Found munmapped emories in module %s: unmapped memories are not supported in SPICE backend!\n", log_id(module));
if (module->name == RTLIL::escape_id(top_module_name)) {
top_module = module;
@ -206,24 +235,24 @@ struct SpiceBackend : public Backend {
ports.at(wire->port_id-1) = wire;
}
*f << stringf(".SUBCKT %s", RTLIL::id2cstr(module->name));
*f << stringf(".SUBCKT %s", spice_id2str(module->name).c_str());
for (RTLIL::Wire *wire : ports) {
log_assert(wire != NULL);
if (wire->width > 1) {
for (int i = 0; i < wire->width; i++)
*f << stringf(" %s[%d]", RTLIL::id2cstr(wire->name), big_endian ? wire->width - 1 - i : i);
*f << stringf(" %s.%d", spice_id2str(wire->name).c_str(), big_endian ? wire->width - 1 - i : i);
} else
*f << stringf(" %s", RTLIL::id2cstr(wire->name));
*f << stringf(" %s", spice_id2str(wire->name).c_str());
}
*f << stringf("\n");
print_spice_module(*f, module, design, neg, pos, ncpf, big_endian);
*f << stringf(".ENDS %s\n\n", RTLIL::id2cstr(module->name));
print_spice_module(*f, module, design, neg, pos, ncpf, big_endian, use_inames);
*f << stringf(".ENDS %s\n\n", spice_id2str(module->name).c_str());
}
if (!top_module_name.empty()) {
if (top_module == NULL)
log_error("Can't find top module `%s'!\n", top_module_name.c_str());
print_spice_module(*f, top_module, design, neg, pos, ncpf, big_endian);
print_spice_module(*f, top_module, design, neg, pos, ncpf, big_endian, use_inames);
*f << stringf("\n");
}