diff --git a/src/uxn.c b/src/uxn.c
index 0619dbb..521fee2 100644
--- a/src/uxn.c
+++ b/src/uxn.c
@@ -61,10 +61,10 @@ uxn_eval(Uxn *u, Uint16 pc)
 			/* ALU */
 			case 0x01: /* INC  */ t=T;            SET(1, 0) PUT(0, t + 1) break;
 			case 0x21:            t=T2;           SET(2, 0) PUT2(0, t + 1) break;
-			case 0x02: /* POP  */                 SET(1,-1) if(k) PUT(0, 0) break;
-			case 0x22:                            SET(2,-2) if(k) PUT2(0, 0) break;
-			case 0x03: /* NIP  */ t=T;            SET(2,-1) PUT(0, t) if(k) PUT(1, 0) break;
-			case 0x23:            t=T2;           SET(4,-2) PUT2(0, t) if(k) PUT2(2, 0) break;
+			case 0x02: /* POP  */                 SET(1,-1) break;
+			case 0x22:                            SET(2,-2) break;
+			case 0x03: /* NIP  */ t=T;            SET(2,-1) PUT(0, t) break;
+			case 0x23:            t=T2;           SET(4,-2) PUT2(0, t) break;
 			case 0x04: /* SWP  */ t=T;n=N;        SET(2, 0) PUT(0, n) PUT(1, t) break;
 			case 0x24:            t=T2;n=N2;      SET(4, 0) PUT2(0, n) PUT2(2, t) break;
 			case 0x05: /* ROT  */ t=T;n=N;l=L;    SET(3, 0) PUT(0, l) PUT(1, t) PUT(2, n) break;