diff --git a/vm/pc/dump.c b/vm/pc/dump.c
index 3586bc1..2c3c27f 100644
--- a/vm/pc/dump.c
+++ b/vm/pc/dump.c
@@ -5,8 +5,12 @@
 
 char *cond_suffixes[] =
 {
-    "",
-    ".c"
+    "-",
+    "c", "o", "z", "s", "p",
+    "a", "ae", "b", "be",
+    "g", "ge", "l", "le",
+    "cxz",
+    "?"
 };
 
 static void dump_acc(ctx_t *ctx, acc_t *p)
@@ -75,7 +79,14 @@ void dump_instr(
         log("rep ");
 
     if (cond)
-        log("c%x", cond);
+    {
+        if (cond & (1 << 4))
+            log("n");
+
+        assert(cond <= sizeof(cond_suffixes)/sizeof(char *));
+
+        log("%s", cond_suffixes[cond]);
+    }
 
     log("\t");