diff options
Diffstat (limited to 'kernel/driver.cc')
| -rw-r--r-- | kernel/driver.cc | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/driver.cc b/kernel/driver.cc index 87109f53b..83374c4be 100644 --- a/kernel/driver.cc +++ b/kernel/driver.cc @@ -101,12 +101,14 @@ static void run_backend(std::string filename, std::string command, RTLIL::Design command = "verilog"; else if (filename.size() > 3 && filename.substr(filename.size()-3) == ".il") command = "ilang"; + else if (filename.size() > 5 && filename.substr(filename.size()-5) == ".blif") + command = "blif"; else if (filename == "-") command = "ilang"; else if (filename.empty()) return; else - log_error("Can't guess frontend for input file `%s' (missing -f option)!\n", filename.c_str()); + log_error("Can't guess backend for output file `%s' (missing -b option)!\n", filename.c_str()); } if (filename.empty()) @@ -461,7 +463,6 @@ int main(int argc, char **argv) printf("%s\n", yosys_version_str); exit(0); case 'S': - backend_command = "verilog -noattr"; passes_commands.push_back("hierarchy"); passes_commands.push_back("proc"); passes_commands.push_back("opt"); @@ -557,10 +558,9 @@ int main(int argc, char **argv) fprintf(stderr, " print version information and exit\n"); fprintf(stderr, "\n"); fprintf(stderr, "The option -S is an alias for the following options that perform a simple\n"); - fprintf(stderr, "transformation of the input to a gate-level netlist. This can be helpful when\n"); - fprintf(stderr, "e.g. using yosys as a pre-processor for a tool that can't understand full verilog.\n"); + fprintf(stderr, "transformation of the input to a gate-level netlist.\n"); fprintf(stderr, "\n"); - fprintf(stderr, " -b 'verilog -noattr' -p hierarchy -p proc -p opt -p memory -p opt -p techmap -p opt\n"); + fprintf(stderr, " -p hierarchy -p proc -p opt -p memory -p opt -p techmap -p opt\n"); fprintf(stderr, "\n"); fprintf(stderr, "For more complex synthesis jobs it is recommended to use the read_* and write_*\n"); fprintf(stderr, "commands in a script file instead of specifying input and output files on the\n"); |