qa.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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
FNinstruction
   Summary  Timings
────────────────────────────────────────────────────────────────────────────
 
No-Wait Instructions
 
Syntax:  FNinstruction
 
Instructions that have no-wait versions include FCLEX, FSAVE, FSTCW,
FSTENV, and FSTSW. Wait versions of instructions check for unmasked
numeric errors; no-wait versions do not. When the .8087 directive is
used, the assembler puts a WAIT instruction before the wait versions
and a NOP instruction before the no-wait versions.
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