diff --git a/cpu.c b/cpu.c
index b76e346..ca4f2c4 100644
--- a/cpu.c
+++ b/cpu.c
@@ -904,28 +904,28 @@ interpret(void)
 			break;
 		case 0x06:
 			mode = AM_ZP;
-			arg = opcode_arg(mode);
+			arg = opcode_mem(mode);
 			asl(arg);
 			cycles += 5;
 			printf("ASL");
 			break;
 		case 0x16:
 			mode = AM_ZP_X;
-			arg = opcode_arg(mode);
+			arg = opcode_mem(mode);
 			asl(arg);
 			cycles += 6;
 			printf("ASL");
 			break;
 		case 0x0e:
 			mode = AM_ABS;
-			arg = opcode_arg(mode);
+			arg = opcode_mem(mode);
 			asl(arg);
 			cycles += 6;
 			printf("ASL");
 			break;
 		case 0x1e:
 			mode = AM_ABS_X;
-			arg = opcode_arg(mode);
+			arg = opcode_mem(mode);
 			asl(arg);
 			cycles += 6;
 			printf("ASL");
@@ -1477,14 +1477,14 @@ interpret(void)
 			break;
 		case 0x4e:
 			mode = AM_ABS;
-			arg = opcode_arg(mode);
+			arg = opcode_mem(mode);
 			lsr(arg);
 			cycles += 6;
 			printf("LSR");
 			break;
 		case 0x5e:
 			mode = AM_ABS_X;
-			arg = opcode_arg(mode);
+			arg = opcode_mem(mode);
 			lsr(arg);
 			cycles += 6;
 			printf("LSR");