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ebb30c0b3a
the OS does FXSAVE/FXRESTOR instructions (fast FPU save/restore) during context switching and also enables SIMD since this enables saving the extra CPU context that isn't saved with normal FPU regs. The other enables the SIMD instructions to use exception 16 (FPU) error reporting. Note, this doesn't turn on SIMD, just defines the bits. |
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Makefile |