ps5: task 2

ps5/src/generator.c

@@ -76,6 +76,25 @@ static void generate_global_variables(void)
 
   // As an example, to set aside 16 bytes and label it .myBytes, write:
   // DIRECTIVE(".myBytes: .zero 16")
+  for (int i = 0; i < global_symbols->n_children; i++) {
+    symbol_t *sym = global_symbols->children[i];
+    switch (sym->type) {
+    case SYMBOL_GLOBAL_VAR:
+      DIRECTIVE(".%s:\t.zero 8", sym.name);
+      break;
+    case SYMBOL_GLOBAL_ARRAY:
+      node_t num = sym->node->children[1];
+      assert(num->type == NUMBER_LITERAL);
+      int len = num->data.number_literal * 8;
+      DIRECTIVE(".%s:\t.zero %d", sym.name, len);
+      break;
+    case SYMBOL_FUNCTION:
+      break;
+    default:
+      fprintf(stderr, "unexpected global symbol");
+      exit(EXIT_FAILURE);
+    }
+  }
 }
 
 // Global variable used to make the functon currently being generated accessible from anywhere