Add help string | Fix emulator CC to not conflict with --vpi

generators/utilities/src/main/resources/csrc/emulator.cc

@@ -20,8 +20,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <getopt.h>
-// needed for s_vpi_vlog_info, which is needed for multithreading
-#include <vpi_user.h>
 
 // For option parsing, which is split across this file, Verilog, and
 // FESVR's HTIF, a few external files must be pulled in. The list of
@@ -56,18 +54,6 @@ double sc_time_stamp()
   return trace_count;
 }
 
-// need to pull htif_argc/htif_argv out here so the thread that calls tick()
-// for the HTIF device can initialize properly with the cmdline args. this
-// was pulled out here for multithreading to work
-static int htif_argc;
-static char **htif_argv = NULL;
-extern "C" int vpi_get_vlog_info(s_vpi_vlog_info *vlog_info_s)
-{
-  vlog_info_s->argc = htif_argc;
-  vlog_info_s->argv = htif_argv;
-  return 1;
-}
-
 static void usage(const char * program_name)
 {
   printf("Usage: %s [EMULATOR OPTION]... [VERILOG PLUSARG]... [HOST OPTION]... BINARY [TARGET OPTION]...\n",
@@ -272,10 +258,6 @@ done_processing:
     return 1;
   }
 
-  // set argc/v in vpi_get_vlog_info
-  htif_argc = argc;
-  htif_argv = argv;
-
   if (verbose)
     fprintf(stderr, "using random seed %u\n", random_seed);
 

sims/verilator/Makefile

@@ -53,6 +53,7 @@ HELP_COMPILATION_VARIABLES += \
 "   VERILATOR_PROFILE      = 'none' if no verilator profiling (default)" \
 "                            'all' if full verilator runtime profiling" \
 "                            'threads' if runtime thread profiling only" \
+"   VERILATOR_THREADS      = how many threads the simulator will use (default 1)" \
 "   VERILATOR_FST_MODE     = enable FST waveform instead of VCD. use with debug build"
 
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