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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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►  ◄Example►
────────────────┬─────────────────────────┬────────────────────────────────
 FXCH [reg]     │ fxch   st(3)            │  87   10-15
                │ fxch                    │ 287   10-15
                │                         │ 387   18
────────────────┴─────────────────────────┴────────────────────────────────
                                    -♦-