Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
FINIT Instruction
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  Title:    Initialize Coprocessor
 
  Syntax:    FINIT
             FNINIT
 
  Description:
 
     Initializes the coprocessor and resets all the registers and flags
     to their default values. On the 80387/486, the condition codes of
     the status word are cleared. On the 8087/287, they are unchanged.
 
     This instruction has wait and no-wait versions. The wait version
     (FINIT) checks for unmasked numeric errors; the no-wait version
     (FNINIT) does not. When the .8087 directive is used, the assembler
     puts the WAIT instruction before the wait versions and the NOP
     instruction before the no-wait versions.
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