qa.hlp (Table of Contents; Topic list)
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.
                                    -♦-