simulation framework refactoring

sim/common/util.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <cstdint>
+#include <assert.h>
+
+namespace vortex {
+
+template <typename... Args>
+void unused(Args&&...) {}
+
+#define __unused(...) unused(__VA_ARGS__)
+
+constexpr bool ispow2(uint64_t value) {
+  return value && !(value & (value - 1));
+}
+
+constexpr unsigned log2ceil(uint32_t value) {
+  return 32 - __builtin_clz(value - 1);
+}
+
+inline uint64_t align_size(uint64_t size, uint64_t alignment) {        
+    assert(0 == (alignment & (alignment - 1)));
+    return (size + alignment - 1) & ~(alignment - 1);
+}
+
+// Apply integer sign extension
+uint32_t signExt(uint32_t w, uint32_t bit, uint32_t mask);
+
+// Convert a floating point number to IEEE-754 32-bit representation
+uint32_t floatToBin(float in_value);
+
+// check floating-point number in binary format is NaN
+uint8_t fpBinIsNan(uint32_t din);
+
+// check floating-point number in binary format is zero
+uint8_t fpBinIsZero(uint32_t din);
+
+// check floating-point number in binary format is infinity
+uint8_t fpBinIsInf(uint32_t din);
+
+// return file extension
+const char* fileExtension(const char* filepath);
+
+}