Made all necessary data and commandline arguments

src/csim.c

@@ -1,13 +1,92 @@
+/**
+ * Groupmembers:
+ * 1. Anna Schlittenhardt
+ * 2. Tuan-Dat Tran
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+#include <math.h>
 #include "cachelab.h"
 
 struct cache_line {
   unsigned char v;
   unsigned int tag;
-  unsigned long timestamp;
+  unsigned int timestamp;
 };
 
-int main()
-{
+typedef struct cache_line cache_line_t;
+
+void print_help() {
+  printf("Usage: ./csim-ref [-hv] -s <s> -E <E> -b <b> -t <tracefile>");
+  printf("  -h: Optional help flag that prints usage info");
+  printf("  -v: Optional verbose flag that displays trace info");
+  printf("  -s <s>: Number of set index bits (S = 2 s is the number of sets)");
+  printf("  -E <E>: Associativity (number of lines per set)");
+  printf("  -b <b>: Number of block bits (B = 2 b is the block size)");
+  printf("  -t <tracefile>: Name of the valgrind trace to replay");
+}
+
+int main(int argc, char *argv[]) {
+  int c;
+  int v = -1, s = -1, E = -1, b = -1, S, B;
+  FILE *tracefile = NULL;
+  int hit = 0, miss = 0, eviction = 0;
+
+  while ((c = getopt(argc, argv, "s:E:b:t:vh")) != -1) {
+    switch (c) {
+    case 'h':
+      print_help();
+      exit(0);
+      break;
+    case 'v':
+      v = 1;
+      break;
+    case 'E':
+      E = atoi(optarg);
+      break;
+    case 'b':
+      b = atoi(optarg);
+      break;
+    case 't':
+      tracefile = fopen(optarg, "r");
+      break;
+    }
+  }
+
+  if (v == -1 || s == -1 || E == -1 || b == -1 || tracefile == NULL) {
+    print_help();
+    exit(0);
+  }
+
+  S = pow(2, s);
+  B = pow(2, b);
+
+  cache_line_t **cache = malloc(S*sizeof(cache_line_t*));
+
+  for (int i = 0; i < (S * sizeof(cache_line_t*)); i++) {
+    cache_line_t *cache_set = malloc(E*sizeof(struct cache_line));
+    cache[i] = cache_set;
+    for (int j = 0; j < E; j++) {
+      cache_set[j].v = '\0';
+      cache_set[j].tag = 0;
+      cache_set[j].timestamp = 0;
+    }
+  }
+
+
+  char op; // I = instruction, L = data load, S = data store, M = data modify
+  unsigned address;
+  int size;
+
+  while (fscanf(tracefile, "%c %x %d", &op, &address, &size) > 0 ) {
+  }
+
+  fclose(tracefile);
+  free(cache);
   printSummary(0, 0, 0);
   return 0;
 }