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LMSW Load Machine Status Word (286/386) Flags: O D I T S Z A P C
LMSW source
Logic: Machine Status Word . source
LMSW loads the 16-bit source into the Machine Status Word. In the
386, LMSW loads the low 16 bits of the CR0 register. You should use it
only under 286 operating systems. Under 386-based operating systems, you
can load CR0 directly with MOV.
--------------------------------------------------------------------------
Operands Clocks Transfers Bytes Example
LMSW register 3 (286) 2 3 LMSW DX
LMSW memory 6 (286) 2 5 LMSW MACH_STAT
--------------------------------------------------------------------------
Note: This instruction is only available in privileged
mode.
See Also:
SMSW
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