TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / external / cpu_features / include / internal / bit_utils.h

diff --git a/src/type3_AndroidCloud/anbox-master/external/cpu_features/include/internal/bit_utils.h b/src/type3_AndroidCloud/anbox-master/external/cpu_features/include/internal/bit_utils.h
new file mode 100644 (file)
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+++ b/src/type3_AndroidCloud/anbox-master/external/cpu_features/include/internal/bit_utils.h
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+// Copyright 2017 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef CPU_FEATURES_INCLUDE_INTERNAL_BIT_UTILS_H_
+#define CPU_FEATURES_INCLUDE_INTERNAL_BIT_UTILS_H_
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include "cpu_features_macros.h"
+
+CPU_FEATURES_START_CPP_NAMESPACE
+
+inline static bool IsBitSet(uint32_t reg, uint32_t bit) {
+  return (reg >> bit) & 0x1;
+}
+
+inline static uint32_t ExtractBitRange(uint32_t reg, uint32_t msb,
+                                       uint32_t lsb) {
+  const uint64_t bits = msb - lsb + 1;
+  const uint64_t mask = (1ULL << bits) - 1ULL;
+  assert(msb >= lsb);
+  return (reg >> lsb) & mask;
+}
+
+CPU_FEATURES_END_CPP_NAMESPACE
+
+#endif  // CPU_FEATURES_INCLUDE_INTERNAL_BIT_UTILS_H_