Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
FXCH Instruction
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 FXCH [reg]     │ fxch   st(3)            │  87 10-15
                │ fxch                    │ 287 10-15
                │                         │ 387 18
                │                         │ 486 4
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                                    -♦-