Intel architecture ia-32 User Manual
12-10 Vol. 3A
SSE, SSE2 AND SSE3 SYSTEM PROGRAMMING
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Restores the x87 FPU, MMX, XMM, or MXCSR registers from the new task’s save area
for the x87 FPU/MMX/SSE/SSE2/SSE3 state.
for the x87 FPU/MMX/SSE/SSE2/SSE3 state.
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Updates the current x87 FPU/MMX/SSE/SSE2/SSE3 state owner to be the current task.
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Clears the TS flag.