diff --git a/moo/kernel/test-003.moo b/moo/kernel/test-003.moo
index 4b45979..26b0615 100644
--- a/moo/kernel/test-003.moo
+++ b/moo/kernel/test-003.moo
@@ -108,7 +108,15 @@ start:
 	[goto B02. A01: 10. B02: 1000. ] value class dump.
 self q.
 
-[ | a | a := 21. if (a = 21) { goto X02 }. X02: ] value dump. ## this causes a stack depletion problem... TODO:
+[ | a | a := 21. if (a = 21) { goto X02 }. X02: ] value dump. // this causes a stack depletion problem... TODO:
+
+/*
+this is horrible... the stack won't be cleared when goto is made... 
+System should never be popped out
+	(if (2 > 1) { 20. System log: (if (2 > 1) {goto X2}) }) dump.
+X2:
+	a dump.
+*/
 
 EXCEPTION_TEST:
 Exception signal: 'experiment with exception signalling'.
diff --git a/moo/lib/moo-prv.h b/moo/lib/moo-prv.h
index a2a6e69..31dcc09 100644
--- a/moo/lib/moo-prv.h
+++ b/moo/lib/moo-prv.h
@@ -959,7 +959,7 @@ enum moo_bcode_t
 	BCODE_JUMP2_FORWARD_IF_TRUE    = 0xC7, /* 199 ## */
 	BCODE_JUMP_FORWARD_IF_FALSE    = 0xC8, /* 200 ## */
 	BCODE_JUMP2_FORWARD_IF_FALSE   = 0xC9, /* 201 ## */
-	/* JMPOP = JUMP + POP */
+	/* JMPOP = JUMP + POP -> it pops the stack top always but it jumps only if the condition is met */
 	BCODE_JMPOP_FORWARD_IF_TRUE    = 0xCA, /* 202 ## */
 	BCODE_JMPOP2_FORWARD_IF_TRUE   = 0xCB, /* 203 ## */
 	BCODE_JMPOP_FORWARD_IF_FALSE   = 0xCC, /* 204 ## */