Module core::core_arch::x86::fxsr

source ·
🔬This is a nightly-only experimental API. (stdsimd #48556)
Available on x86 or x86-64 only.
Expand description

FXSR floating-point context fast save and restore.

Functions

  • fxrstor 🔒 ⚠Experimental
  • fxsave 🔒 ⚠Experimental
  • _fxrstor⚠fxsr
    Restores the XMM, MMX, MXCSR, and x87 FPU registers from the 512-byte-long 16-byte-aligned memory region mem_addr.
  • _fxsave⚠fxsr
    Saves the x87 FPU, MMX technology, XMM, and MXCSR registers to the 512-byte-long 16-byte-aligned memory region mem_addr.