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FLDCW Load Control Word Exception Flags: None
FLDCW memory operand
Logic: control word . memory operand
The FLDCW instruction loads a control word from memory into the
coprocessor control word.
This instruction is used to quickly change the coprocessor's mode of
operation. You should clear any exceptions before loading a new control
word.
--------------------------------------------------------------------------
Operands Clocks Bytes Example
FLDCW memory operand 7-14+EA 5 FLDCW CONTROL_WORD
--------------------------------------------------------------------------
Note: If an exception bit is set, loading a control word
that unmasks that exception and clears the interrupt
enable mask produces an interrupt request before the
next instruction is executed.
See Also:
FLD
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