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Added iopadmap -bits

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This commit is contained in:
Clifford Wolf 2014-02-15 21:59:26 +01:00
parent 118517ca5a
commit 623a68f528
1 changed files with 48 additions and 14 deletions
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62
passes/techmap/iopadmap.cc
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@ -57,6 +57,11 @@ struct IopadmapPass : public Pass {
log(" -nameparam <param_name>\n"); log(" -nameparam <param_name>\n");
log(" Use the specified parameter to set the port name.\n"); log(" Use the specified parameter to set the port name.\n");
log("\n"); log("\n");
log(" -bits\n");
log(" create individual bit-wide buffers even for ports that\n");
log(" are wider. (the default behavio is to create word-wide\n");
log(" buffers use -widthparam to set the word size on the cell.)\n");
log("\n");
} }
virtual void execute(std::vector<std::string> args, RTLIL::Design *design) virtual void execute(std::vector<std::string> args, RTLIL::Design *design)
{ {
@ -66,6 +71,7 @@ struct IopadmapPass : public Pass {
std::string outpad_celltype, outpad_portname, outpad_portname2; std::string outpad_celltype, outpad_portname, outpad_portname2;
std::string inoutpad_celltype, inoutpad_portname, inoutpad_portname2; std::string inoutpad_celltype, inoutpad_portname, inoutpad_portname2;
std::string widthparam, nameparam; std::string widthparam, nameparam;
bool flag_bits = false;
size_t argidx; size_t argidx;
for (argidx = 1; argidx < args.size(); argidx++) for (argidx = 1; argidx < args.size(); argidx++)
@ -97,6 +103,10 @@ struct IopadmapPass : public Pass {
nameparam = args[++argidx]; nameparam = args[++argidx];
continue; continue;
} }
if (arg == "-bits") {
flag_bits = true;
continue;
}
break; break;
} }
extra_args(args, argidx, design); extra_args(args, argidx, design);
@ -146,31 +156,55 @@ struct IopadmapPass : public Pass {
} else } else
log_abort(); log_abort();
if (wire->width != 1 && widthparam.empty()) { if (!flag_bits && wire->width != 1 && widthparam.empty()) {
log("Don't map multi-bit port %s.%s: Missing option -widthparam.\n", RTLIL::id2cstr(module->name), RTLIL::id2cstr(wire->name)); log("Don't map multi-bit port %s.%s: Missing option -widthparam or -bits.\n", RTLIL::id2cstr(module->name), RTLIL::id2cstr(wire->name));
continue; continue;
} }
log("Mapping port %s.%s using %s.\n", RTLIL::id2cstr(module->name), RTLIL::id2cstr(wire->name), celltype.c_str()); log("Mapping port %s.%s using %s.\n", RTLIL::id2cstr(module->name), RTLIL::id2cstr(wire->name), celltype.c_str());
RTLIL::Cell *cell = new RTLIL::Cell; RTLIL::Wire *new_wire = NULL;
cell->name = NEW_ID;
cell->type = RTLIL::escape_id(celltype);
cell->connections[RTLIL::escape_id(portname)] = RTLIL::SigSpec(wire);
if (!portname2.empty()) { if (!portname2.empty()) {
RTLIL::Wire *new_wire = new RTLIL::Wire; new_wire = new RTLIL::Wire;
*new_wire = *wire; *new_wire = *wire;
wire->name = NEW_ID; wire->name = NEW_ID;
module->wires[wire->name] = wire; module->wires[wire->name] = wire;
module->wires[new_wire->name] = new_wire; module->wires[new_wire->name] = new_wire;
cell->connections[RTLIL::escape_id(portname2)] = RTLIL::SigSpec(new_wire);
} }
if (!widthparam.empty())
cell->parameters[RTLIL::escape_id(widthparam)] = RTLIL::Const(wire->width); if (flag_bits)
if (!nameparam.empty()) {
cell->parameters[RTLIL::escape_id(nameparam)] = RTLIL::Const(RTLIL::id2cstr(wire->name)); for (int i = 0; i < wire->width; i++)
cell->attributes["\\keep"] = RTLIL::Const(1); {
module->add(cell); RTLIL::Cell *cell = new RTLIL::Cell;
cell->name = NEW_ID;
cell->type = RTLIL::escape_id(celltype);
cell->connections[RTLIL::escape_id(portname)] = RTLIL::SigSpec(wire, 1, i);
if (!portname2.empty())
cell->connections[RTLIL::escape_id(portname2)] = RTLIL::SigSpec(new_wire, 1, i);
if (!widthparam.empty())
cell->parameters[RTLIL::escape_id(widthparam)] = RTLIL::Const(1);
if (!nameparam.empty())
cell->parameters[RTLIL::escape_id(nameparam)] = RTLIL::Const(stringf("%s[%d]", RTLIL::id2cstr(wire->name), i));
cell->attributes["\\keep"] = RTLIL::Const(1);
module->add(cell);
}
}
else
{
RTLIL::Cell *cell = new RTLIL::Cell;
cell->name = NEW_ID;
cell->type = RTLIL::escape_id(celltype);
cell->connections[RTLIL::escape_id(portname)] = RTLIL::SigSpec(wire);
if (!portname2.empty())
cell->connections[RTLIL::escape_id(portname2)] = RTLIL::SigSpec(new_wire);
if (!widthparam.empty())
cell->parameters[RTLIL::escape_id(widthparam)] = RTLIL::Const(wire->width);
if (!nameparam.empty())
cell->parameters[RTLIL::escape_id(nameparam)] = RTLIL::Const(RTLIL::id2cstr(wire->name));
cell->attributes["\\keep"] = RTLIL::Const(1);
module->add(cell);
}
wire->port_id = 0; wire->port_id = 0;
wire->port_input = false; wire->port_input = false;