3-666
INSTRUCTION SET REFERENCE
STMXCSR—Store Streaming SIMD Extension Control/Status
Description
The MXCSR control/status register is used to enable masked/unmasked exception handling, to
set rounding modes, to set flush-to-zero mode, and to view exception status flags. Refer to
LDMXCSR for a description of the format of MXCSR. The linear address corresponds to the
address of the least-significant byte of the referenced memory data. The reserved bits in the
MXCSR are stored as zeroes.
Operation
m32 = MXCSR;
Intel C/C++ Compiler Intrinsic Equivalent
_mm_getcsr(void)
Returns the contents of the control register.
Exceptions
None.
Numeric Exceptions
None.
OpcodeInstructionDescription
0F,AE,/3STMXCSR m32Store Streaming SIMD Extension control/status word to m32.
