Processor Control Instructions

Initialize Processor (finit, fnint)

finitfninit	

Example

finit

No Operation (fnop)

fnop	

Example

fnop

Save State (fsave, fnsave)

fsave
fnsave

Example

fsave 2(%ecx)

Store Control Word (fstcw, fnstcw)

fstcw
fnstcw

Example

fstcw 2(%ecx)

Store Environment (fstenv, fnstenv)

fstenv
fnstenv	

Example

fstenv 2(%ecx)

Store Status Word (fstsw, fnstsw)

fstsw
fnstsw

Example

fstsw %ax

Restore State (frstor)

frstor

Example

frstor 2(%ecx)

CPU Wait (fwait, wait)

fwait
wait	

Example

fwait

Clear Exceptions (fclex, fnclex)

fclex
fnclex

Example

fclex

Decrement Stack Pointer (fdecstp)

fdecstp

Example

fdecstp 

Free Registers (ffree)

ffree		

Example

ffree %st(7)

Increment Stack Pointer (fincstp)

fincstp 

Example

fincstp