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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Coprocessor Environment Control
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      Select an instruction for more information.
 
    Instruction     Description
 
     FLDCW           Load control word
     FSTCW           Store control word
     FSTSW           Store status word
     FLDENV          Load environment block
     FSTENV          Store environment block
     FSAVE           Save coprocessor state
     FRSTOR          Restore coprocessor state
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