diff --git a/ka/main.k b/ka/main.k
index 047ed5a..99f9288 100644
--- a/ka/main.k
+++ b/ka/main.k
@@ -32,6 +32,7 @@ cpudev_test:
 
     trap 0
     trap 0
+    trap 2
 
     ret
 
diff --git a/vm/pc/arch.h b/vm/pc/arch.h
index 0a265e8..0e29565 100644
--- a/vm/pc/arch.h
+++ b/vm/pc/arch.h
@@ -62,6 +62,9 @@ struct ctx_t
 
     // Devices list head
     dev_t *dh;
+
+    // Instructions executed so far
+    ulong ninstrs;
 };
 
 #define R(X) ctx->rf[X]
diff --git a/vm/pc/decd.c b/vm/pc/decd.c
index e6af903..e6ac165 100644
--- a/vm/pc/decd.c
+++ b/vm/pc/decd.c
@@ -163,7 +163,7 @@ void decode(ctx_t *ctx)
     ulong pc = rip;
     
     // Instruction counter
-    R(RX0)++;
+    ctx->ninstrs++;
 
     //
     // Process the first word of the instruction
diff --git a/vm/pc/regs.c b/vm/pc/regs.c
index 7a6d189..e484e7c 100644
--- a/vm/pc/regs.c
+++ b/vm/pc/regs.c
@@ -100,7 +100,7 @@ void dumpregs(ctx_t *ctx)
 
 
     log("\n\nrip=0x%-16lX rsp=0x%-16lX rbp=0x%-16lX rx0=%-16lu\n\n",
-        rip, rsp, rbp, R(RX0));
+        rip, rsp, rbp, ctx->ninstrs);
 
     log("CF=%x OF=%x\n"
         "ZF=%x SF=%x\n"