Table of Contents
Previous topic Next topic
MICROPROCESSOR INSTRUCTION REFERENCE->FRESTORE
Restore Internal Floating Point State
Compatibility: ColdFire chips with a floating-point unit (FPU)
If in Supervisor State, state frame -> FPU internal state
else Privilege Violation Exception
Aborts any floating-point operation in progress and loads a new FPU internal state from the state frame at the effective address. If the frame is invalid, FRESTORE aborts and a format exception is generated.
|Assembler Syntax:||FRESTORE <ea>|
If the NULL state frame is loaded, the floating-point data registers are initialised to NANs, otherwise the floating-point data registers are unaffected.
Floating-Point Status Register: restored from the state-frame
Floating-Point Control Register: restored from the state-frame
|Allowable Addressing Modes||