diff options
Diffstat (limited to 'gowin/arch.cc')
-rw-r--r-- | gowin/arch.cc | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/gowin/arch.cc b/gowin/arch.cc index 7bfef36e..4fc2cd43 100644 --- a/gowin/arch.cc +++ b/gowin/arch.cc @@ -691,13 +691,15 @@ void Arch::read_cst(std::istream &in) std::regex port_attrre = std::regex("([^ =;]+=[^ =;]+) *([^;]*;)"); std::regex iobelre = std::regex("IO([TRBL])([0-9]+)\\[?([A-Z])\\]?"); std::regex inslocre = std::regex("INS_LOC +\"([^\"]+)\" +R([0-9]+)C([0-9]+)\\[([0-9])\\]\\[([AB])\\] *;.*"); + std::regex clockre = std::regex("CLOCK_LOC +\"([^\"]+)\" +BUF([GS])[^;]*;"); std::smatch match, match_attr, match_pinloc; std::string line, pinline; enum { ioloc, ioport, - insloc + insloc, + clock } cst_type; settings.erase(id_cst); @@ -708,24 +710,42 @@ void Arch::read_cst(std::istream &in) if (std::regex_match(line, match, portre)) { cst_type = ioport; } else { - if (std::regex_match(line, match, inslocre)) { - cst_type = insloc; + if (std::regex_match(line, match, clockre)) { + cst_type = clock; } else { - if ((!line.empty()) && (line.rfind("//", 0) == std::string::npos)) { - log_warning("Invalid constraint: %s\n", line.c_str()); + if (std::regex_match(line, match, inslocre)) { + cst_type = insloc; + } else { + if ((!line.empty()) && (line.rfind("//", 0) == std::string::npos)) { + log_warning("Invalid constraint: %s\n", line.c_str()); + } + continue; } - continue; } } } IdString net = id(match[1]); auto it = cells.find(net); - if (it == cells.end()) { + if (cst_type != clock && it == cells.end()) { log_info("Cell %s not found\n", net.c_str(this)); continue; } switch (cst_type) { + case clock: { // CLOCK name BUFG|S + std::string which_clock = match[2]; + if (which_clock.at(0) == 'S') { + auto ni = nets.find(net); + if (ni == nets.end()) { + log_info("Net %s not found\n", net.c_str(this)); + continue; + } + log_info("Long wires are not implemented. The %s network will use normal routing.\n", net.c_str(this)); + } else { + log_info("BUFG isn't supported\n"); + continue; + } + } break; case ioloc: { // IO_LOC name pin IdString pinname = id(match[2]); pinline = match[2]; |