52 lines · cpp
1//===-- AddressableBits.cpp -----------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "lldb/Utility/AddressableBits.h"10#include "lldb/lldb-types.h"11 12#include <cassert>13 14using namespace lldb;15using namespace lldb_private;16 17void AddressableBits::SetAddressableBits(uint32_t addressing_bits) {18 m_low_memory_addr_bits = m_high_memory_addr_bits = addressing_bits;19}20 21void AddressableBits::SetAddressableBits(uint32_t lowmem_addressing_bits,22 uint32_t highmem_addressing_bits) {23 m_low_memory_addr_bits = lowmem_addressing_bits;24 m_high_memory_addr_bits = highmem_addressing_bits;25}26 27void AddressableBits::SetLowmemAddressableBits(28 uint32_t lowmem_addressing_bits) {29 m_low_memory_addr_bits = lowmem_addressing_bits;30}31 32uint32_t AddressableBits::GetLowmemAddressableBits() const {33 return m_low_memory_addr_bits;34}35 36void AddressableBits::SetHighmemAddressableBits(37 uint32_t highmem_addressing_bits) {38 m_high_memory_addr_bits = highmem_addressing_bits;39}40 41uint32_t AddressableBits::GetHighmemAddressableBits() const {42 return m_high_memory_addr_bits;43}44 45addr_t AddressableBits::AddressableBitToMask(uint32_t addressable_bits) {46 assert(addressable_bits <= sizeof(addr_t) * 8);47 if (addressable_bits == 64)48 return 0; // all bits used for addressing49 else50 return ~((1ULL << addressable_bits) - 1);51}52