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Miku AuahDark
33 lines
669 B
C++
33 lines
669 B
C++
#ifndef CORE_FPU_CTRL_H
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#define CORE_FPU_CTRL_H
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class FPUCtl {
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unsigned int sse_state{};
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bool in_mode{};
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static unsigned int Set() noexcept;
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static void Reset(unsigned int state) noexcept;
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public:
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FPUCtl() noexcept : sse_state{Set()}, in_mode{true} { }
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~FPUCtl() { if(in_mode) Reset(sse_state); }
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FPUCtl(const FPUCtl&) = delete;
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FPUCtl& operator=(const FPUCtl&) = delete;
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void enter() noexcept
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{
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if(!in_mode)
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sse_state = Set();
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in_mode = true;
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}
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void leave() noexcept
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{
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if(in_mode)
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Reset(sse_state);
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in_mode = false;
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}
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};
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#endif /* CORE_FPU_CTRL_H */
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