tsmul             936 src/dps8/dps8_math128.c     tsmul  (0,      1,      MASK64, MASK64,     MASK64,  MASK64);
tsmul             937 src/dps8/dps8_math128.c     tsmul  (MASK64, MASK64, MASK64, MASK64,     0,       1);