SIGNEXT18_32     2106 src/dps8/dps8_eis.c       r = SIGNEXT18_32 ((word18) rcnt);
SIGNEXT18_32     2368 src/dps8/dps8_eis.c     r = SIGNEXT18_32 ((word18) r);
SIGNEXT18_32     2443 src/dps8/dps8_eis.c     r = SIGNEXT18_32 ((word18) r);
SIGNEXT18_32     1009 src/dps8/dps8_utils.c     int32 op1 = SIGNEXT18_32 (oP1 & MASK18);
SIGNEXT18_32     1010 src/dps8/dps8_utils.c     int32 op2 = SIGNEXT18_32 (oP2 & MASK18);