Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

   ◄Summary►  ◄Timings►
────────────────┬─────────────────────────┬────────────────────────────────
 FTST           │ ftst                    │  87   38-48
                │                         │ 287   38-48
                │                         │ 387   28
────────────────┴─────────────────────────┴────────────────────────────────
 
Condition Codes for FTST
 
C3    C2    C1    C0    Meaning
0     0     ?     0     ST is positive
0     0     ?     1     ST is negative
1     0     ?     0     ST is 0
1     1     ?     1     ST is not comparable (NAN or projective infinity)
                                    -♦-