GP2AP020A00F_FLAG_A
op_reg_flags = op_reg_val & (GP2AP020A00F_FLAG_A | GP2AP020A00F_FLAG_P
op_reg_val &= (~GP2AP020A00F_FLAG_A & ~GP2AP020A00F_FLAG_P
if (op_reg_flags & GP2AP020A00F_FLAG_A) {