diff options
Diffstat (limited to 'passes/abc')
| -rw-r--r-- | passes/abc/abc.cc | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/passes/abc/abc.cc b/passes/abc/abc.cc index e6b7a72d..1115bdc7 100644 --- a/passes/abc/abc.cc +++ b/passes/abc/abc.cc @@ -29,10 +29,10 @@ // Kahn, Arthur B. (1962), "Topological sorting of large networks", Communications of the ACM 5 (11): 558–562, doi:10.1145/368996.369025 // http://en.wikipedia.org/wiki/Topological_sorting -#define ABC_COMMAND_LIB "strash; ifraig -v; retime -v; balance -v; dch -vf; scorr -v; map -v;" -#define ABC_COMMAND_CTR "strash; ifraig -v; retime -v; balance -v; dch -vf; scorr -v; map -v; buffer -v; upsize -v; dnsize -v; stime -p" -#define ABC_COMMAND_LUT "strash; ifraig -v; retime -v; balance -v; dch -vf; scorr -v; if -v" -#define ABC_COMMAND_DFL "strash; ifraig -v; retime -v; balance -v; dch -vf; scorr -v; map -v" +#define ABC_COMMAND_LIB "strash; ifraig -v; retime -v; balance -v; scorr -v; dch -vf; map -v;" +#define ABC_COMMAND_CTR "strash; ifraig -v; retime -v; balance -v; scorr -v; dch -vf; map -v; buffer -v; upsize -v; dnsize -v; stime -p" +#define ABC_COMMAND_LUT "strash; ifraig -v; retime -v; balance -v; scorr -v; dch -vf; if -v" +#define ABC_COMMAND_DFL "strash; ifraig -v; retime -v; balance -v; scorr -v; dch -vf; map -v" #include "kernel/register.h" #include "kernel/sigtools.h" @@ -383,6 +383,25 @@ static std::string add_echos_to_abc_cmd(std::string str) return new_str; } +static std::string fold_abc_cmd(std::string str) +{ + std::string token, new_str = " "; + int char_counter = 10; + + for (size_t i = 0; i <= str.size(); i++) { + if (i < str.size()) + token += str[i]; + if (i == str.size() || str[i] == ';') { + if (char_counter + token.size() > 75) + new_str += "\n ", char_counter = 14; + new_str += token, char_counter += token.size(); + token.clear(); + } + } + + return new_str; +} + static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::string script_file, std::string exe_file, std::string liberty_file, std::string constr_file, bool cleanup, int lut_mode, bool dff_mode, std::string clk_str) { @@ -508,6 +527,8 @@ static void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std fprintf(f, " n%d", si.id); count_input++; } + if (count_input == 0) + fprintf(f, " dummy_input\n"); fprintf(f, "\n"); int count_output = 0; @@ -857,16 +878,16 @@ struct AbcPass : public Pass { log(" if no -script parameter is given, the following scripts are used:\n"); log("\n"); log(" for -liberty without -constr:\n"); - log(" %s\n", ABC_COMMAND_LIB); + log("%s\n", fold_abc_cmd(ABC_COMMAND_LIB).c_str()); log("\n"); log(" for -liberty with -constr:\n"); - log(" %s\n", ABC_COMMAND_CTR); + log("%s\n", fold_abc_cmd(ABC_COMMAND_CTR).c_str()); log("\n"); log(" for -lut:\n"); - log(" %s\n", ABC_COMMAND_LUT); + log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT).c_str()); log("\n"); log(" otherwise:\n"); - log(" %s\n", ABC_COMMAND_DFL); + log("%s\n", fold_abc_cmd(ABC_COMMAND_DFL).c_str()); log("\n"); log(" -liberty <file>\n"); log(" generate netlists for the specified cell library (using the liberty\n"); @@ -880,8 +901,8 @@ struct AbcPass : public Pass { log(" set_load <floating_point_number>\n"); log("\n"); log(" the set_driving_cell statement defines which cell type is assumed to\n"); - log(" drive the primary inputs and the set_load statement sets the number of\n"); - log(" flip-flops driven by each primary output.\n"); + log(" drive the primary inputs and the set_load statement sets the load in\n"); + log(" femtofarads for each primary output.\n"); log("\n"); log(" -lut <width>\n"); log(" generate netlist using luts of (max) the specified width.\n"); |