adding floating extension to SimX

simX/main.cpp

@@ -0,0 +1,78 @@
+#include <iostream>
+#include <iomanip>
+#include <string>
+#include <sstream>
+#include <fstream>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "debug.h"
+#include "types.h"
+#include "core.h"
+#include "args.h"
+
+using namespace vortex;
+
+int main(int argc, char **argv) {
+
+  std::string archString("rv32i");
+  int num_cores(1);
+  int num_warps(NUM_WARPS);
+  int num_threads(NUM_THREADS);
+  std::string imgFileName;
+  bool showHelp(false);
+  bool showStats(false);
+
+  /* Read the command line arguments. */
+  CommandLineArgFlag fh("-h", "--help", "", showHelp);
+  CommandLineArgSetter<std::string> fa("-a", "--arch", "", archString);  
+  CommandLineArgSetter<std::string> fi("-i", "--image", "", imgFileName);
+  CommandLineArgSetter<int> fc("-c", "--cores", "", num_cores);
+  CommandLineArgSetter<int> fw("-w", "--warps", "", num_warps);
+  CommandLineArgSetter<int> ft("-t", "--threads", "", num_threads);
+  CommandLineArgFlag fs("-s", "--stats", "", showStats);
+
+  CommandLineArg::readArgs(argc - 1, argv + 1);
+
+  if (showHelp || imgFileName.empty()) {
+    std::cout << "Vortex emulator command line arguments:\n"
+                 "  -i, --image <filename> Program RAM image\n"
+                 "  -c, --cores <num> Number of cores\n"
+                 "  -w, --warps <num> Number of warps\n"
+                 "  -t, --threads <num> Number of threads\n"
+                 "  -a, --arch <arch string> Architecture string\n"
+                 "  -s, --stats Print stats on exit.\n";
+    return 0;
+  }
+
+  ArchDef arch(archString, num_cores, num_warps, num_threads);
+
+  Decoder decoder(arch);
+  MemoryUnit mu(4096, arch.getWordSize(), true);
+  
+  RAM old_ram;
+  old_ram.loadHexImpl(imgFileName.c_str());
+  mu.attach(old_ram, 0);
+
+  struct stat hello;
+  fstat(0, &hello);
+
+  std::vector<std::shared_ptr<Core>> cores(num_cores);
+  for (int i = 0; i < num_cores; ++i) {
+    cores[i] = std::make_shared<Core>(arch, decoder, mu);
+  }
+
+  bool running;
+
+  do {
+    running = false;
+    for (int i = 0; i < num_cores; ++i) {
+      if (!cores[i]->running())
+        continue;
+      running = true;
+      cores[i]->step();
+    }
+  } while (running);
+
+  return 0;
+}