Intel i86W Manual page 67

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CORE INSTRUCTIONS
5.3 TRANSFER INTEGER TO F-P REGISTER
Ixfr
isrc
1
ni, fdest
fdest
~
isrc1 ni
(Transfer Integer to F-P Register)
The
ixfr
instruction transfers a 32-bit value from an integer register to a floating-point
register.
Programming Notes
For best performance, the destination of an
ixfr
should not be referenced as a source
operand in the next two instructions.
5-5

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