C++ GetStartAddr函数代码示例

void CassImpTargetDialog::DoDataExchange(CDataExchange* pDX)
{
    DDX_Radio(pDX, IDC_CASSIMPTARG_BAS, fFileTypeIndex);
    DDX_Text(pDX, IDC_CASSIMPTARG_FILENAME, fFileName);

    if (pDX->m_bSaveAndValidate) {
        CString appName;
        appName.LoadString(IDS_MB_APP_NAME);

        if (fFileTypeIndex == kTypeBIN) {
            if (GetStartAddr() < 0) {
                MessageBox(L"The address field must be a valid 4-digit "
                           L" hexadecimal number.",
                    appName, MB_OK);
                pDX->Fail();
                return;
            }
            fStartAddr = (unsigned short) GetStartAddr();
        }
        if (fFileName.IsEmpty()) {
            MessageBox(L"You must enter a filename.", appName, MB_OK);
            pDX->Fail();
            return;
        }
    } else {
        CWnd* pWnd;
        CString tmpStr;

        pWnd = GetDlgItem(IDC_CASSIMPTARG_BINADDR);
        tmpStr.Format(L"%04X", fStartAddr);
        pWnd->SetWindowText(tmpStr);
    }
}

bool RawSPUThread::Read64(const u64 addr, u64* value)
{
	if(addr < GetStartAddr() + RAW_SPU_PROB_OFFSET)
	{
		return MemoryBlock::Read64(addr, value);
	}

	u32 offset = addr - GetStartAddr() - RAW_SPU_PROB_OFFSET;
	ConLog.Error("RawSPUThread[%d]: Read64(0x%x)", m_index, offset);
	Emu.Pause();
	return false;
}

u32 VirtualMemoryBlock::Map(u32 realaddr, u32 size)
{
	assert(size);

	for (u32 addr = GetStartAddr(); addr <= GetEndAddr() - GetReservedAmount() - size;)
	{
		bool is_good_addr = true;

		// check if address is already mapped
		for (u32 i = 0; i<m_mapped_memory.size(); ++i)
		{
			if ((addr >= m_mapped_memory[i].addr && addr < m_mapped_memory[i].addr + m_mapped_memory[i].size) ||
				(m_mapped_memory[i].addr >= addr && m_mapped_memory[i].addr < addr + size))
			{
				is_good_addr = false;
				addr = m_mapped_memory[i].addr + m_mapped_memory[i].size;
				break;
			}
		}

		if (!is_good_addr) continue;

		m_mapped_memory.emplace_back(addr, realaddr, size);

		return addr;
	}

	return 0;
}

bool VirtualMemoryBlock::Reserve(u32 size)
{
	if(size + GetReservedAmount() > GetEndAddr() - GetStartAddr())
		return false;

	m_reserve_size += size;
	return true;
}

RawSPUThread::~RawSPUThread()
{
	for(int i=0; i<Memory.MemoryBlocks.size(); ++i)
	{
		if(Memory.MemoryBlocks[i]->GetStartAddr() == GetStartAddr())
		{
			Memory.MemoryBlocks.erase(Memory.MemoryBlocks.begin() + i);
			break;
		}
	}

	//Close();
}

void CassImpTargetDialog::OnAddrChange(void)
{
    CWnd* pWnd;
    CString tmpStr;
    long val;

    val = GetStartAddr();
    if (val < 0)
        val = 0;

    tmpStr.Format(L".%04X", val + fFileLength-1);

    pWnd = GetDlgItem(IDC_CASSIMPTARG_RANGE);
    pWnd->SetWindowText(tmpStr);
}

bool RawSPUThread::Read32(const u64 addr, u32* value)
{
	const u64 offset = addr - GetStartAddr() - RAW_SPU_PROB_OFFSET;

	switch (offset)
	{
	case MFC_CMDStatus_offs:
	{
		*value = MFC2.CMDStatus.GetValue();
		break;
	}

	case MFC_QStatus_offs:
	{
		// TagStatus is not used: mask is written directly
		*value = MFC2.QueryMask.GetValue();
		break;
	}

	case SPU_Out_MBox_offs:
	{
		// if Out_MBox is empty, the result is undefined
		SPU.Out_MBox.PopUncond(*value);
		break;
	}

	case SPU_MBox_Status_offs:
	{
		*value = (SPU.Out_MBox.GetCount() & 0xff) | (SPU.In_MBox.GetFreeCount() << 8);
		break;
	}
		
	case SPU_Status_offs:
	{
		*value = SPU.Status.GetValue();
		break;
	}

	default:
	{
		// TODO: read value from LS if necessary (not important)
		LOG_ERROR(Log::SPU, "RawSPUThread[%d]: Read32(0x%llx)", m_index, offset);
		return false;
	}
	}

	return true;
}

u64 VirtualMemoryBlock::Map(u64 realaddr, u32 size, u64 addr)
{
	if(addr)
	{
		if(!IsInMyRange(addr, size) && (IsMyAddress(addr) || IsMyAddress(addr + size - 1)))
			return 0;

		m_mapped_memory.emplace_back(addr, realaddr, size);
		return addr;
	}
	else
	{
		for(u64 addr = GetStartAddr(); addr <= GetEndAddr() - GetReservedAmount() - size;)
		{
			bool is_good_addr = true;

			// check if address is already mapped
			for(u32 i=0; i<m_mapped_memory.size(); ++i)
			{
				if((addr >= m_mapped_memory[i].addr && addr < m_mapped_memory[i].addr + m_mapped_memory[i].size) ||
					(m_mapped_memory[i].addr >= addr && m_mapped_memory[i].addr < addr + size))
				{
					is_good_addr = false;
					addr = m_mapped_memory[i].addr + m_mapped_memory[i].size;
					break;
				}
			}

			if(!is_good_addr) continue;

			m_mapped_memory.emplace_back(addr, realaddr, size);

			return addr;
		}

		return 0;
	}
}

bool VirtualMemoryBlock::IsInMyRange(const u64 addr)
{
	return addr >= GetStartAddr() && addr < GetStartAddr() + GetSize() - GetReservedAmount();
}

u64 MemoryBlock::FixAddr(const u64 addr) const
{
    return addr - GetStartAddr();
}

bool VirtualMemoryBlock::IsInMyRange(const u32 addr, const u32 size)
{
	return addr >= GetStartAddr() && addr + size - 1 <= GetEndAddr() - GetReservedAmount();
}