.op2(decode_out_op2), .carry(decode_out_carry),
.outstall(stall_cause_execute), .outbubble(execute_out_bubble),
.write_reg(execute_out_write_reg), .write_num(execute_out_write_num),
.op2(decode_out_op2), .carry(decode_out_carry),
.outstall(stall_cause_execute), .outbubble(execute_out_bubble),
.write_reg(execute_out_write_reg), .write_num(execute_out_write_num),