diff options
Diffstat (limited to 'passes/fsm/fsm.cc')
| -rw-r--r-- | passes/fsm/fsm.cc | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/passes/fsm/fsm.cc b/passes/fsm/fsm.cc index 61322fbd3..c0c42de9f 100644 --- a/passes/fsm/fsm.cc +++ b/passes/fsm/fsm.cc @@ -23,7 +23,43 @@ #include <stdio.h> struct FsmPass : public Pass { - FsmPass() : Pass("fsm") { } + FsmPass() : Pass("fsm", "extract and optimize finite state machines") { } + virtual void help() + { + // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---| + log("\n"); + log(" fsm [options] [selection]\n"); + log("\n"); + log("This pass calls all the other fsm_* passes in a useful order. This performs\n"); + log("FSM extraction and optimiziation. It also calls opt_rmunused as needed:\n"); + log("\n"); + log(" fsm_detect\n"); + log(" fsm_extract\n"); + log("\n"); + log(" fsm_opt\n"); + log(" opt_rmunused\n"); + log(" fsm_opt\n"); + log("\n"); + log(" fsm_expand if got option -expand\n"); + log(" opt_rmunused if got option -expand\n"); + log(" fsm_opt if got option -expand\n"); + log("\n"); + log(" fsm_recode unless got option -norecode\n"); + log("\n"); + log(" fsm_info\n"); + log("\n"); + log(" fsm_export if got option -export\n"); + log(" fsm_map unless got option -nomap\n"); + log("\n"); + log("Options:\n"); + log("\n"); + log(" -expand, -norecode, -export, -nomap\n"); + log(" enable or disable passes as indicated above\n"); + log("\n"); + log(" -fm_set_fsm_file file\n"); + log(" passed through to fsm_recode pass\n"); + log("\n"); + } virtual void execute(std::vector<std::string> args, RTLIL::Design *design) { bool flag_nomap = false; |