Add Fastor library

noarch/include/Fastor/config/cpuid.h

@@ -0,0 +1,71 @@
+/*  This file is part of the FASTOR library. {{{
+Copyright (c) 2020 Roman Poya
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+}}}*/
+
+#ifndef CPUID_H
+#define CPUID_H
+
+#ifdef _WIN32
+#include <limits.h>
+#include <intrin.h>
+typedef unsigned __int32  uint32_t;
+#else
+#include <stdint.h>
+#endif
+
+
+namespace Fastor {
+
+class CPUID {
+  uint32_t regs[4];
+
+public:
+  explicit CPUID(unsigned i) {
+#ifdef _WIN32
+    __cpuid((int *)regs, (int)i);
+
+#else
+    asm volatile
+      ("cpuid" : "=a" (regs[0]), "=b" (regs[1]), "=c" (regs[2]), "=d" (regs[3])
+       : "a" (i), "c" (0));
+    // ECX is set to zero for CPUID function 4
+#endif
+  }
+
+  const uint32_t& EAX() const {return regs[0];} // cpu base frequency
+  const uint32_t& EBX() const {return regs[1];} // cpu max frequency
+  const uint32_t& ECX() const {return regs[2];} // bus (reference) frequency
+  const uint32_t& EDX() const {return regs[3];}
+};
+
+// Usage:
+// CPUID cpuID(0);
+// std::string vendor;
+// vendor += std::string((const char *)&cpuID.EBX(), 4);
+// vendor += std::string((const char *)&cpuID.EDX(), 4);
+// vendor += std::string((const char *)&cpuID.ECX(), 4);
+// std::cout << "CPU vendor = " << vendor << std::endl;
+
+
+} // Fastor
+
+#endif // CPUID_H