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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.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►
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Exchange Registers
 
Syntax:  FXCH [dest]
 
Exchanges the specified (destination) register and ST. If no operand is
specified, ST and ST(1) are exchanged.
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