r18               466 src/dps8/dps8_utils.c     bool r18 = (res & SIGN18) ? true : false;
r18               475 src/dps8/dps8_utils.c     * ovf = r19 ^ r18;
r18               550 src/dps8/dps8_utils.c     bool r18 = res & SIGN18 ? true : false;
r18               559 src/dps8/dps8_utils.c     * ovf = r19 ^ r18;