A.5.133 LDMXCSR: Load Streaming SIMD Extension Control/Status
LDMXCSR mem32 ; 0F AE /2 [KATMAI,SSE]
LDMXCSR loads 32-bits of data from the specified memory location
into the MXCSR control/status register. MXCSR is used to enable
masked/unmasked exception handling, to set rounding modes, to set flush-
to-zero mode, and to view exception status flags.
For details of the MXCSR register, see the Intel processor docs.
See also STMXCSR (section A.5.302