dolphin/Source/Plugins/Plugin_DSP_HLE/Src/MailHandler.cpp

135 lines
2.3 KiB
C++

// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "MailHandler.h"
CMailHandler::CMailHandler()
{
}
CMailHandler::~CMailHandler()
{
Clear();
}
void CMailHandler::PushMail(u32 _Mail)
{
m_Mails.push(_Mail);
DEBUG_LOG(DSP_MAIL, "DSP writes 0x%08x", _Mail);
Update();
}
u16 CMailHandler::ReadDSPMailboxHigh()
{
// check if we have a mail for the core
if (!m_Mails.empty())
{
u16 result = (m_Mails.front() >> 16) & 0xFFFF;
Update();
return result;
}
return 0x00;
}
u16 CMailHandler::ReadDSPMailboxLow()
{
// check if we have a mail for the core
if (!m_Mails.empty())
{
u16 result = m_Mails.front() & 0xFFFF;
m_Mails.pop();
Update();
return result;
}
return 0x00;
}
void CMailHandler::Clear()
{
while (!m_Mails.empty())
m_Mails.pop();
}
bool CMailHandler::IsEmpty()
{
return m_Mails.empty();
}
void CMailHandler::Halt(bool _Halt)
{
if (_Halt)
{
Clear();
m_Mails.push(0x80544348);
}
Update();
}
void CMailHandler::Update()
{
if (!IsEmpty())
{
// g_dspInitialize.pGenerateDSPInterrupt();
}
}
void CMailHandler::DoState(PointerWrap &p)
{
if (p.GetMode() == PointerWrap::MODE_READ)
{
Clear();
int sz;
p.Do(sz);
for (int i = 0; i < sz; i++)
{
u32 mail;
p.Do(mail);
m_Mails.push(mail);
}
}
else // WRITE and MEASURE
{
std::queue<u32> temp;
int sz = m_Mails.size();
p.Do(sz);
for (int i = 0; i < sz; i++)
{
u32 value = m_Mails.front();
m_Mails.pop();
p.Do(value);
temp.push(value);
}
if (!m_Mails.empty())
PanicAlert("CMailHandler::DoState - WTF?");
// Restore queue.
for (int i = 0; i < sz; i++)
{
u32 value = temp.front();
temp.pop();
m_Mails.push(value);
}
}
}