15 lines
322 B
Rust
15 lines
322 B
Rust
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/// Enable FPU in the current core.
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pub fn enable_fpu() {
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unsafe {
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llvm_asm!("
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mrc p15, 0, r1, c1, c0, 2
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orr r1, r1, (0b1111<<20)
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mcr p15, 0, r1, c1, c0, 2
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vmrs r1, fpexc
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orr r1, r1, (1<<30)
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vmsr fpexc, r1
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":::"r1");
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}
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}
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