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/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2021 Symbiflow Authors
*
*
* 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 "cell_parameters.h"
#include <limits>
#include "DeviceResources.capnp.h"
#include "context.h"
#include "log.h"
#include "nextpnr_assertions.h"
NEXTPNR_NAMESPACE_BEGIN
CellParameters::CellParameters()
// 1'b0
: verilog_binary_re("([1-9][0-9]*)'b([01]+)$"),
// 8'hF
verilog_hex_re("([1-9][0-9]*)'h([0-9a-fA-F]+)$"),
// 0b10
c_binary_re("0b([01]+)$"),
// 0xF
c_hex_re("0x([0-9a-fA-F]+)$")
{
}
void CellParameters::init(const Context *ctx)
{
for (const CellParameterPOD &cell_parameter : ctx->chip_info->cell_map->cell_parameters) {
IdString cell_type(cell_parameter.cell_type);
IdString parameter(cell_parameter.parameter);
auto result = parameters.emplace(std::make_pair(cell_type, parameter), &cell_parameter);
NPNR_ASSERT(result.second);
}
}
static bool parse_int(const std::string &data, int64_t *result)
{
NPNR_ASSERT(result != nullptr);
try {
*result = boost::lexical_cast<int64_t>(data);
return true;
} catch (boost::bad_lexical_cast &e) {
return false;
}
}
DynamicBitarray<> CellParameters::parse_int_like(const Context *ctx, IdString cell_type, IdString parameter,
const Property &property) const
{
const CellParameterPOD *definition = parameters.at(std::make_pair(cell_type, parameter));
DeviceResources::Device::ParameterFormat format;
format = static_cast<DeviceResources::Device::ParameterFormat>(definition->format);
DynamicBitarray<> result;
switch (format) {
case DeviceResources::Device::ParameterFormat::BOOLEAN:
result.resize(1);
if (property.is_string) {
if (property.as_string() == "TRUE" || property.as_string() == "1") {
result.set(0, true);
} else if (property.as_string() == "FALSE" || property.as_string() == "0") {
result.set(0, false);
} else {
log_error("Property value %s not expected for BOOLEAN type.\n", property.c_str());
}
} else {
if (property.intval == 1) {
result.set(0, true);
} else if (property.intval == 0) {
result.set(0, false);
} else {
log_error("Property value %lu not expected for BOOLEAN type.\n", property.intval);
}
}
return result;
case DeviceResources::Device::ParameterFormat::INTEGER:
if (property.is_string) {
char *endptr;
std::uintmax_t value = strtoumax(property.c_str(), &endptr, /*base=*/10);
if (endptr != (property.c_str() + property.size())) {
log_error("Property value %s not expected for INTEGER type.\n", property.c_str());
}
return DynamicBitarray<>::to_bitarray(value);
} else {
return DynamicBitarray<>::to_bitarray(property.intval);
}
break;
case DeviceResources::Device::ParameterFormat::VERILOG_BINARY:
if (property.is_string) {
std::smatch m;
if (!std::regex_match(property.as_string(), m, verilog_binary_re)) {
log_error("Property value %s not expected for VERILOG_BINARY type.\n", property.c_str());
}
int64_t width;
if (!parse_int(m[1], &width)) {
log_error("Failed to parse width from property value %s of type VERILOG_BINARY.\n", property.c_str());
}
if (width < 0) {
log_error("Expected width to be positive for property value %s\n", property.c_str());
}
return DynamicBitarray<>::parse_binary_bitstring(width, m[2]);
} else {
return DynamicBitarray<>::to_bitarray(property.intval);
}
break;
case DeviceResources::Device::ParameterFormat::VERILOG_HEX:
if (property.is_string) {
std::smatch m;
if (!std::regex_match(property.as_string(), m, verilog_hex_re)) {
log_error("Property value %s not expected for VERILOG_HEX type.\n", property.c_str());
}
int64_t width;
if (!parse_int(m[1], &width)) {
log_error("Failed to parse width from property value %s of type VERILOG_HEX.\n", property.c_str());
}
if (width < 0) {
log_error("Expected width to be positive for property value %s\n", property.c_str());
}
return DynamicBitarray<>::parse_hex_bitstring(width, m[2]);
} else {
return DynamicBitarray<>::to_bitarray(property.intval);
}
break;
case DeviceResources::Device::ParameterFormat::C_BINARY:
if (property.is_string) {
std::smatch m;
if (!std::regex_match(property.as_string(), m, c_binary_re)) {
log_error("Property value %s not expected for C_BINARY type.\n", property.c_str());
}
return DynamicBitarray<>::parse_binary_bitstring(/*width=*/-1, m[1]);
} else {
return DynamicBitarray<>::to_bitarray(property.intval);
}
break;
case DeviceResources::Device::ParameterFormat::C_HEX:
if (property.is_string) {
std::smatch m;
if (!std::regex_match(property.as_string(), m, c_hex_re)) {
log_error("Property value %s not expected for C_HEX type.\n", property.c_str());
}
return DynamicBitarray<>::parse_hex_bitstring(/*width=*/-1, m[1]);
} else {
return DynamicBitarray<>::to_bitarray(property.intval);
}
break;
default:
log_error("Format %d is not int-like\n", definition->format);
}
// Unreachable!
NPNR_ASSERT(false);
}
bool CellParameters::compare_property(const Context *ctx, IdString cell_type, IdString parameter,
const Property &property, IdString value_to_compare) const
{
const CellParameterPOD *definition = parameters.at(std::make_pair(cell_type, parameter));
DeviceResources::Device::ParameterFormat format;
format = static_cast<DeviceResources::Device::ParameterFormat>(definition->format);
switch (format) {
case DeviceResources::Device::ParameterFormat::STRING:
return value_to_compare.c_str(ctx) == property.as_string();
case DeviceResources::Device::ParameterFormat::FLOATING_POINT:
// Note: Comparing floating point is pretty weird
log_warning("Doing direct comparisions on floating points values is pretty weird, double check this. Cell "
"type %s parameter %s\n",
cell_type.c_str(ctx), parameter.c_str(ctx));
return value_to_compare.c_str(ctx) == property.as_string();
case DeviceResources::Device::ParameterFormat::BOOLEAN:
case DeviceResources::Device::ParameterFormat::INTEGER:
case DeviceResources::Device::ParameterFormat::VERILOG_BINARY:
case DeviceResources::Device::ParameterFormat::VERILOG_HEX:
case DeviceResources::Device::ParameterFormat::C_BINARY:
case DeviceResources::Device::ParameterFormat::C_HEX: {
if (property.is_string) {
// Given that string presentations should be equivalent if
// formatted consistently, this should work most and or all of
// the time. If there are important exceptions, revisit this.
return property.as_string() == value_to_compare.c_str(ctx);
} else {
int64_t int_to_compare;
if (!parse_int(value_to_compare.c_str(ctx), &int_to_compare)) {
log_error("Comparision failed, to compare value %s is not int-like\n", value_to_compare.c_str(ctx));
}
return property.intval == int_to_compare;
}
}
}
// Unreachable!
NPNR_ASSERT(false);
}
NEXTPNR_NAMESPACE_END
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