diff options
Diffstat (limited to 'common/property.cc')
-rw-r--r-- | common/property.cc | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/common/property.cc b/common/property.cc new file mode 100644 index 00000000..945462f8 --- /dev/null +++ b/common/property.cc @@ -0,0 +1,81 @@ +/* + * nextpnr -- Next Generation Place and Route + * + * Copyright (C) 2018 Clifford Wolf <clifford@symbioticeda.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 + * 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 "property.h" + +#include "nextpnr_namespaces.h" + +NEXTPNR_NAMESPACE_BEGIN + +Property::Property() : is_string(false), str(""), intval(0) {} + +Property::Property(int64_t intval, int width) : is_string(false), intval(intval) +{ + str.reserve(width); + for (int i = 0; i < width; i++) + str.push_back((intval & (1ULL << i)) ? S1 : S0); +} + +Property::Property(const std::string &strval) : is_string(true), str(strval), intval(0xDEADBEEF) {} + +Property::Property(State bit) : is_string(false), str(std::string("") + char(bit)), intval(bit == S1) {} + + +std::string Property::to_string() const +{ + if (is_string) { + std::string result = str; + int state = 0; + for (char c : str) { + if (state == 0) { + if (c == '0' || c == '1' || c == 'x' || c == 'z') + state = 0; + else if (c == ' ') + state = 1; + else + state = 2; + } else if (state == 1 && c != ' ') + state = 2; + } + if (state < 2) + result += " "; + return result; + } else { + return std::string(str.rbegin(), str.rend()); + } +} + +Property Property::from_string(const std::string &s) +{ + Property p; + + size_t cursor = s.find_first_not_of("01xz"); + if (cursor == std::string::npos) { + p.str = std::string(s.rbegin(), s.rend()); + p.is_string = false; + p.update_intval(); + } else if (s.find_first_not_of(' ', cursor) == std::string::npos) { + p = Property(s.substr(0, s.size() - 1)); + } else { + p = Property(s); + } + return p; +} + +NEXTPNR_NAMESPACE_END |