diff options
Diffstat (limited to 'core/fpu_ctrl.h')
| -rw-r--r-- | core/fpu_ctrl.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/core/fpu_ctrl.h b/core/fpu_ctrl.h index 9554313a..d4f75ec3 100644 --- a/core/fpu_ctrl.h +++ b/core/fpu_ctrl.h @@ -2,20 +2,31 @@ #define CORE_FPU_CTRL_H class FPUCtl { -#if defined(HAVE_SSE_INTRINSICS) || (defined(__GNUC__) && defined(HAVE_SSE)) unsigned int sse_state{}; -#endif bool in_mode{}; + static unsigned int Set() noexcept; + static void Reset(unsigned int state) noexcept; + public: - FPUCtl() noexcept { enter(); in_mode = true; } - ~FPUCtl() { if(in_mode) leave(); } + FPUCtl() noexcept : sse_state{Set()}, in_mode{true} { } + ~FPUCtl() { if(in_mode) Reset(sse_state); } FPUCtl(const FPUCtl&) = delete; FPUCtl& operator=(const FPUCtl&) = delete; - void enter() noexcept; - void leave() noexcept; + void enter() noexcept + { + if(!in_mode) + sse_state = Set(); + in_mode = true; + } + void leave() noexcept + { + if(in_mode) + Reset(sse_state); + in_mode = false; + } }; #endif /* CORE_FPU_CTRL_H */ |