tneg              868 src/dps8/dps8_math128.c     tneg   (0,      0,      0,      0);
tneg              869 src/dps8/dps8_math128.c     tneg   (MASK64, MASK64, 0,      1);
tneg              871 src/dps8/dps8_math128.c     tneg   (0,      1,      MASK64, MASK64);