mirror of
https://github.com/AppleWin/AppleWin.git
synced 2024-09-30 13:55:37 +00:00
717c5cba84
. Format now extensible for supporting new hardware types in the future . Include missing items like Apple2Type, CyclesThisVideoFrame (#255) Continue to support loading of old v1 format. Added card save/load for: . Mouse (#260) . HDD (#260) . Printer Extended card support for: . SSC Other: . Added save-state v1 struct size checks . Create SaveState_Structs_v2.h and split out common into SaveState_Structs_common.h . Refactor HardDisk.cpp to use imagehandle; and consolidate with Disk.cpp . Fix Disk/HD_GetFullPathName() which wasn't always returning full pathname . Consolidate common GetImageTitle() and move into DiskImage.cpp
671 lines
16 KiB
C++
671 lines
16 KiB
C++
/*
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AppleWin : An Apple //e emulator for Windows
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Copyright (C) 1994-1996, Michael O'Brien
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Copyright (C) 1999-2001, Oliver Schmidt
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Copyright (C) 2002-2005, Tom Charlesworth
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Copyright (C) 2006-2007, Tom Charlesworth, Michael Pohoreski
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AppleWin is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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AppleWin is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with AppleWin; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* Description: Save-state (snapshot) module
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*
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* Author: Copyright (c) 2004-2015 Tom Charlesworth
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*/
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#include "StdAfx.h"
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#include "SaveState_Structs_v1.h"
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#include "SaveState_Structs_v2.h"
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#include "AppleWin.h"
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#include "CPU.h"
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#include "Disk.h"
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#include "Frame.h"
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#include "Joystick.h"
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#include "Keyboard.h"
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#include "Memory.h"
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#include "Mockingboard.h"
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#include "MouseInterface.h"
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#include "ParallelPrinter.h"
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#include "SerialComms.h"
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#include "Speaker.h"
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#include "Video.h"
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#include "Configuration\Config.h"
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#include "Configuration\IPropertySheet.h"
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#define DEFAULT_SNAPSHOT_NAME "SaveState.aws"
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bool g_bSaveStateOnExit = false;
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static std::string g_strSaveStateFilename;
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static std::string g_strSaveStatePathname;
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static std::string g_strSaveStatePath;
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//-----------------------------------------------------------------------------
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void Snapshot_SetFilename(std::string strPathname)
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{
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if (strPathname.empty())
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{
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g_strSaveStateFilename = DEFAULT_SNAPSHOT_NAME;
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g_strSaveStatePathname = g_sCurrentDir;
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if (g_strSaveStatePathname.length() && g_strSaveStatePathname[g_strSaveStatePathname.length()-1] != '\\')
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g_strSaveStatePathname += "\\";
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g_strSaveStatePathname.append(DEFAULT_SNAPSHOT_NAME);
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g_strSaveStatePath = g_sCurrentDir;
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return;
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}
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std::string strFilename = strPathname; // Set default, as maybe there's no path
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g_strSaveStatePath.clear();
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int nIdx = strPathname.find_last_of('\\');
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if (nIdx >= 0 && nIdx+1 < (int)strPathname.length())
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{
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strFilename = &strPathname[nIdx+1];
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g_strSaveStatePath = strPathname.substr(0, nIdx+1); // Bugfix: 1.25.0.2 // Snapshot_LoadState() -> SetCurrentImageDir() -> g_sCurrentDir
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}
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g_strSaveStateFilename = strFilename;
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g_strSaveStatePathname = strPathname;
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}
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const char* Snapshot_GetFilename()
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{
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return g_strSaveStateFilename.c_str();
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}
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const char* Snapshot_GetPath()
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{
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return g_strSaveStatePath.c_str();
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}
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//-----------------------------------------------------------------------------
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static void Snapshot_LoadState_v1() // .aws v1.0.0.1, up to (and including) AppleWin v1.25.0
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{
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std::string strOldImageDir(g_sCurrentDir);
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APPLEWIN_SNAPSHOT_v1* pSS = (APPLEWIN_SNAPSHOT_v1*) new char[sizeof(APPLEWIN_SNAPSHOT_v1)]; // throw's bad_alloc
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try
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{
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#if _MSC_VER >= 1600 // static_assert supported from VS2010 (cl.exe v16.00)
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static_assert(kSnapshotSize_v1 == sizeof(APPLEWIN_SNAPSHOT_v1), "Save-state v1 struct size mismatch");
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#else
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// A compile error here means sizeof(APPLEWIN_SNAPSHOT_v1) is wrong, eg. one of the constituent structs has been modified
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typedef char VerifySizesAreEqual[kSnapshotSize_v1 == sizeof(APPLEWIN_SNAPSHOT_v1) ? 1 : -1];
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#endif
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if (kSnapshotSize_v1 != sizeof(APPLEWIN_SNAPSHOT_v1))
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throw std::string("Save-state v1 struct size mismatch");
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SetCurrentImageDir(g_strSaveStatePath.c_str()); // Allow .dsk's load without prompting
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memset(pSS, 0, sizeof(APPLEWIN_SNAPSHOT_v1));
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//
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HANDLE hFile = CreateFile( g_strSaveStatePathname.c_str(),
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GENERIC_READ,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if(hFile == INVALID_HANDLE_VALUE)
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throw std::string("File not found: ") + g_strSaveStatePathname;
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DWORD dwBytesRead;
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BOOL bRes = ReadFile( hFile,
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pSS,
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sizeof(APPLEWIN_SNAPSHOT_v1),
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&dwBytesRead,
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NULL);
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CloseHandle(hFile);
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if(!bRes || (dwBytesRead != sizeof(APPLEWIN_SNAPSHOT_v1)))
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// File size wrong: probably because of version mismatch or corrupt file
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throw std::string("File size mismatch");
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if(pSS->Hdr.dwTag != AW_SS_TAG)
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throw std::string("File corrupt");
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if(pSS->Hdr.dwVersion != MAKE_VERSION(1,0,0,1))
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throw std::string("Version mismatch");
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// TO DO: Verify checksum
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//
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// Reset all sub-systems
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MemReset();
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if (!IS_APPLE2)
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MemResetPaging();
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DiskReset();
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KeybReset();
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VideoResetState();
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MB_Reset();
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//
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// Apple2 unit
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//
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SS_CPU6502& CPU = pSS->Apple2Unit.CPU6502;
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CpuSetSnapshot_v1(CPU.A, CPU.X, CPU.Y, CPU.P, CPU.S, CPU.PC, CPU.nCumulativeCycles);
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SS_IO_Comms& SSC = pSS->Apple2Unit.Comms;
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sg_SSC.SetSnapshot_v1(SSC.baudrate, SSC.bytesize, SSC.commandbyte, SSC.comminactivity, SSC.controlbyte, SSC.parity, SSC.stopbits);
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JoySetSnapshot_v1(pSS->Apple2Unit.Joystick.nJoyCntrResetCycle);
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KeybSetSnapshot_v1(pSS->Apple2Unit.Keyboard.nLastKey);
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SpkrSetSnapshot_v1(pSS->Apple2Unit.Speaker.nSpkrLastCycle);
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VideoSetSnapshot_v1(pSS->Apple2Unit.Video.bAltCharSet, pSS->Apple2Unit.Video.dwVidMode);
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MemSetSnapshot_v1(pSS->Apple2Unit.Memory.dwMemMode, pSS->Apple2Unit.Memory.bLastWriteRam, pSS->Apple2Unit.Memory.nMemMain, pSS->Apple2Unit.Memory.nMemAux);
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//
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//
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// Slot4: Mockingboard
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MB_SetSnapshot_v1(&pSS->Mockingboard1, 4);
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//
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// Slot5: Mockingboard
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MB_SetSnapshot_v1(&pSS->Mockingboard2, 5);
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//
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// Slot6: Disk][
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DiskSetSnapshot_v1(&pSS->Disk2);
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SetLoadedSaveStateFlag(true);
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MemUpdatePaging(TRUE);
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}
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catch(std::string szMessage)
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{
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MessageBox( g_hFrameWindow,
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szMessage.c_str(),
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TEXT("Load State"),
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MB_ICONEXCLAMATION | MB_SETFOREGROUND);
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SetCurrentImageDir(strOldImageDir.c_str());
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}
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delete [] pSS;
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}
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//-----------------------------------------------------------------------------
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HANDLE m_hFile = INVALID_HANDLE_VALUE;
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CConfigNeedingRestart m_ConfigNew;
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static void Snapshot_LoadState_FileHdr(SS_FILE_HDR& Hdr)
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{
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try
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{
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m_hFile = CreateFile( g_strSaveStatePathname.c_str(),
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GENERIC_READ,
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0,
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NULL,
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OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL,
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NULL);
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if(m_hFile == INVALID_HANDLE_VALUE)
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throw std::string("File not found: ") + g_strSaveStatePathname;
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DWORD dwBytesRead;
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BOOL bRes = ReadFile( m_hFile,
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&Hdr,
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sizeof(Hdr),
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&dwBytesRead,
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NULL);
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if(!bRes || (dwBytesRead != sizeof(Hdr)))
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throw std::string("File size mismatch");
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if(Hdr.dwTag != AW_SS_TAG)
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throw std::string("File corrupt");
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}
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catch(std::string szMessage)
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{
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MessageBox( g_hFrameWindow,
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szMessage.c_str(),
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TEXT("Load State"),
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MB_ICONEXCLAMATION | MB_SETFOREGROUND);
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if(m_hFile == INVALID_HANDLE_VALUE)
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{
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CloseHandle(m_hFile);
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m_hFile = INVALID_HANDLE_VALUE;
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}
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}
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}
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#define UNIT_APPLE2_VER 1
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#define UNIT_CARD_VER 1
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#define UNIT_CONFIG_VER 1
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static void LoadUnitApple2(DWORD Length, DWORD Version)
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{
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SS_APPLE2_Unit_v2 Apple2Unit;
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if (Version != UNIT_APPLE2_VER)
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throw std::string("Apple2: Version mismatch");
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if (Length != sizeof(Apple2Unit))
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throw std::string("Apple2: Length mismatch");
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if (SetFilePointer(m_hFile, -(LONG)sizeof(Apple2Unit.UnitHdr), NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
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throw std::string("Apple2: file corrupt");
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DWORD dwBytesRead;
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BOOL bRes = ReadFile( m_hFile,
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&Apple2Unit,
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Length,
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&dwBytesRead,
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NULL);
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if (dwBytesRead != Length)
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throw std::string("Apple2: file corrupt");
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g_Apple2Type = (eApple2Type) Apple2Unit.Apple2Type;
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m_ConfigNew.m_Apple2Type = g_Apple2Type;
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CpuSetSnapshot(Apple2Unit.CPU6502);
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JoySetSnapshot(Apple2Unit.Joystick.JoyCntrResetCycle);
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KeybSetSnapshot(Apple2Unit.Keyboard.LastKey);
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SpkrSetSnapshot(Apple2Unit.Speaker.SpkrLastCycle);
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VideoSetSnapshot(Apple2Unit.Video);
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MemSetSnapshot(Apple2Unit.Memory);
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}
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//===
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static void LoadCardDisk2(void)
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{
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DiskSetSnapshot(m_hFile);
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}
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static void LoadCardMockingboardC(void)
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{
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MB_SetSnapshot(m_hFile);
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}
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static void LoadCardMouseInterface(void)
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{
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sg_Mouse.SetSnapshot(m_hFile);
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}
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static void LoadCardSSC(void)
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{
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sg_SSC.SetSnapshot(m_hFile);
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}
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static void LoadCardPrinter(void)
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{
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Printer_SetSnapshot(m_hFile);
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}
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static void LoadCardHDD(void)
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{
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HD_SetSnapshot(m_hFile, g_strSaveStatePath);
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m_ConfigNew.m_bEnableHDD = true;
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}
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//===
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static void LoadUnitCard(DWORD Length, DWORD Version)
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{
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SS_CARD_HDR Card;
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if (Version != UNIT_APPLE2_VER)
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throw std::string("Card: Version mismatch");
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if (Length < sizeof(Card))
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throw std::string("Card: file corrupt");
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if (SetFilePointer(m_hFile, -(LONG)sizeof(Card.UnitHdr), NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
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throw std::string("Card: file corrupt");
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DWORD dwBytesRead;
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BOOL bRes = ReadFile( m_hFile,
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&Card,
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sizeof(Card),
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&dwBytesRead,
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NULL);
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if (dwBytesRead != sizeof(Card))
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throw std::string("Card: file corrupt");
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//currently cards are changed by restarting machine (ie. all slot empty) then adding cards (most of which are hardcoded to specific slots)
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if (SetFilePointer(m_hFile, -(LONG)sizeof(SS_CARD_HDR), NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
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throw std::string("Card: file corrupt");
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bool bIsCardSupported = true;
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switch(Card.Type)
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{
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case CT_Empty:
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throw std::string("Card: todo");
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break;
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case CT_Disk2:
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LoadCardDisk2();
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break;
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case CT_SSC:
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LoadCardSSC();
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break;
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case CT_MockingboardC:
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LoadCardMockingboardC();
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break;
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case CT_GenericPrinter:
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LoadCardPrinter();
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break;
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case CT_GenericHDD:
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LoadCardHDD();
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break;
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case CT_MouseInterface:
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LoadCardMouseInterface();
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break;
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case CT_Z80:
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throw std::string("Card: todo");
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break;
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case CT_Phasor:
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throw std::string("Card: todo");
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break;
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default:
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//throw std::string("Card: unsupported");
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bIsCardSupported = false;
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if (SetFilePointer(m_hFile, Card.UnitHdr.hdr.v2.Length, NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
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throw std::string("Card: failed to skip unsupported card");
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}
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if (bIsCardSupported)
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m_ConfigNew.m_Slot[Card.Slot] = (SS_CARDTYPE) Card.Type;
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}
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static void LoadUnitConfig(DWORD Length, DWORD Version)
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{
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SS_APPLEWIN_CONFIG Cfg;
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if (Version != UNIT_CONFIG_VER)
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throw std::string("Config: Version mismatch");
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if (Length != sizeof(Cfg))
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throw std::string("Config: Length mismatch");
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if (SetFilePointer(m_hFile, -(LONG)sizeof(Cfg.UnitHdr), NULL, FILE_CURRENT) == INVALID_SET_FILE_POINTER)
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throw std::string("Config: file corrupt");
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DWORD dwBytesRead;
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BOOL bRes = ReadFile( m_hFile,
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&Cfg,
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Length,
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&dwBytesRead,
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NULL);
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if (dwBytesRead != Length)
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throw std::string("Config: file corrupt");
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// todo:
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//m_ConfigNew.m_bEnhanceDisk;
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//m_ConfigNew.m_bEnableHDD;
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}
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static void Snapshot_LoadState_v2(DWORD dwVersion)
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{
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try
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{
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if (dwVersion != MAKE_VERSION(2,0,0,0))
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throw std::string("Version mismatch");
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CConfigNeedingRestart ConfigOld;
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ConfigOld.m_Slot[1] = CT_GenericPrinter; // fixme
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ConfigOld.m_Slot[2] = CT_SSC; // fixme
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ConfigOld.m_Slot[6] = CT_Disk2; // fixme
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ConfigOld.m_Slot[7] = ConfigOld.m_bEnableHDD ? CT_GenericHDD : CT_Empty; // fixme
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for (UINT i=0; i<NUM_SLOTS; i++)
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m_ConfigNew.m_Slot[i] = CT_Empty;
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MemReset();
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if (!IS_APPLE2)
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MemResetPaging();
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DiskReset();
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KeybReset();
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VideoResetState();
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MB_Reset();
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sg_Mouse.Uninitialize();
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sg_Mouse.Reset();
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HD_SetEnabled(false);
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while(1)
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{
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SS_UNIT_HDR UnitHdr;
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DWORD dwBytesRead;
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BOOL bRes = ReadFile( m_hFile,
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&UnitHdr,
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sizeof(UnitHdr),
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&dwBytesRead,
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NULL);
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if (dwBytesRead == 0)
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break; // EOF (OK)
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if(!bRes || (dwBytesRead != sizeof(UnitHdr)))
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throw std::string("File size mismatch");
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switch (UnitHdr.hdr.v2.Type)
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{
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case UT_Apple2:
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LoadUnitApple2(UnitHdr.hdr.v2.Length, UnitHdr.hdr.v2.Version);
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break;
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case UT_Card:
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LoadUnitCard(UnitHdr.hdr.v2.Length, UnitHdr.hdr.v2.Version);
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break;
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case UT_Config:
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LoadUnitConfig(UnitHdr.hdr.v2.Length, UnitHdr.hdr.v2.Version);
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break;
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default:
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// Log then skip unsupported unit type
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break;
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}
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}
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SetLoadedSaveStateFlag(true);
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// NB. The following disparity should be resolved:
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// . A change in h/w via the Configuration property sheets results in a the VM completely restarting (via WM_USER_RESTART)
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// . A change in h/w via loading a save-state avoids this VM restart
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// The latter is the desired approach (as the former needs a "power-on" / F2 to start things again)
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sg_PropertySheet.ApplyNewConfig(m_ConfigNew, ConfigOld);
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MemInitializeROM();
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MemInitializeCustomF8ROM();
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MemInitializeIO();
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MemUpdatePaging(TRUE);
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//PostMessage(g_hFrameWindow, WM_USER_RESTART, 0, 0); // No, as this power-cycles VM (undoing all the new state just loaded)
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}
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catch(std::string szMessage)
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{
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MessageBox( g_hFrameWindow,
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szMessage.c_str(),
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TEXT("Load State"),
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MB_ICONEXCLAMATION | MB_SETFOREGROUND);
|
|
}
|
|
|
|
CloseHandle(m_hFile);
|
|
m_hFile = INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
void Snapshot_LoadState()
|
|
{
|
|
SS_FILE_HDR Hdr;
|
|
Snapshot_LoadState_FileHdr(Hdr);
|
|
|
|
if (m_hFile == INVALID_HANDLE_VALUE)
|
|
return;
|
|
|
|
if(Hdr.dwVersion <= MAKE_VERSION(1,0,0,1))
|
|
{
|
|
CloseHandle(m_hFile);
|
|
m_hFile = INVALID_HANDLE_VALUE;
|
|
|
|
Snapshot_LoadState_v1();
|
|
return;
|
|
}
|
|
|
|
Snapshot_LoadState_v2(Hdr.dwVersion);
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void Snapshot_SaveState()
|
|
{
|
|
try
|
|
{
|
|
// todo: append '.aws' if missing
|
|
|
|
m_hFile = CreateFile( g_strSaveStatePathname.c_str(),
|
|
GENERIC_WRITE,
|
|
0,
|
|
NULL,
|
|
CREATE_ALWAYS,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL);
|
|
|
|
DWORD dwError = GetLastError();
|
|
_ASSERT((dwError == 0) || (dwError == ERROR_ALREADY_EXISTS));
|
|
|
|
// todo: handle ERROR_ALREADY_EXISTS - ask if user wants to replace existing file
|
|
|
|
if(m_hFile == INVALID_HANDLE_VALUE)
|
|
{
|
|
//dwError = GetLastError();
|
|
throw std::string("Save error");
|
|
}
|
|
|
|
//
|
|
|
|
APPLEWIN_SNAPSHOT_v2 AppleSnapshotv2;
|
|
|
|
AppleSnapshotv2.Hdr.dwTag = AW_SS_TAG;
|
|
AppleSnapshotv2.Hdr.dwVersion = MAKE_VERSION(2,0,0,0);
|
|
AppleSnapshotv2.Hdr.dwChecksum = 0; // TO DO
|
|
|
|
SS_APPLE2_Unit_v2& Apple2Unit = AppleSnapshotv2.Apple2Unit;
|
|
|
|
//
|
|
// Apple2 unit
|
|
//
|
|
|
|
Apple2Unit.UnitHdr.hdr.v2.Length = sizeof(SS_APPLE2_Unit_v2);
|
|
Apple2Unit.UnitHdr.hdr.v2.Type = UT_Apple2;
|
|
Apple2Unit.UnitHdr.hdr.v2.Version = UNIT_APPLE2_VER;
|
|
|
|
Apple2Unit.Apple2Type = g_Apple2Type;
|
|
|
|
CpuGetSnapshot(Apple2Unit.CPU6502);
|
|
JoyGetSnapshot(Apple2Unit.Joystick.JoyCntrResetCycle);
|
|
KeybGetSnapshot(Apple2Unit.Keyboard.LastKey);
|
|
SpkrGetSnapshot(Apple2Unit.Speaker.SpkrLastCycle);
|
|
VideoGetSnapshot(Apple2Unit.Video);
|
|
MemGetSnapshot(Apple2Unit.Memory);
|
|
|
|
DWORD dwBytesWritten;
|
|
BOOL bRes = WriteFile( m_hFile,
|
|
&AppleSnapshotv2,
|
|
sizeof(APPLEWIN_SNAPSHOT_v2),
|
|
&dwBytesWritten,
|
|
NULL);
|
|
|
|
if(!bRes || (dwBytesWritten != sizeof(APPLEWIN_SNAPSHOT_v2)))
|
|
{
|
|
//dwError = GetLastError();
|
|
throw std::string("Save error");
|
|
}
|
|
|
|
//
|
|
|
|
Printer_GetSnapshot(m_hFile);
|
|
|
|
sg_SSC.GetSnapshot(m_hFile);
|
|
|
|
sg_Mouse.GetSnapshot(m_hFile);
|
|
|
|
if (g_Slot4 == CT_MockingboardC)
|
|
MB_GetSnapshot(m_hFile, 4);
|
|
|
|
if (g_Slot5 == CT_MockingboardC)
|
|
MB_GetSnapshot(m_hFile, 5);
|
|
|
|
DiskGetSnapshot(m_hFile);
|
|
|
|
HD_GetSnapshot(m_hFile);
|
|
}
|
|
catch(std::string szMessage)
|
|
{
|
|
MessageBox( g_hFrameWindow,
|
|
szMessage.c_str(),
|
|
TEXT("Save State"),
|
|
MB_ICONEXCLAMATION | MB_SETFOREGROUND);
|
|
}
|
|
|
|
CloseHandle(m_hFile);
|
|
m_hFile = INVALID_HANDLE_VALUE;
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
void Snapshot_Startup()
|
|
{
|
|
static bool bDone = false;
|
|
|
|
if(!g_bSaveStateOnExit || bDone)
|
|
return;
|
|
|
|
Snapshot_LoadState();
|
|
|
|
bDone = true;
|
|
}
|
|
|
|
void Snapshot_Shutdown()
|
|
{
|
|
static bool bDone = false;
|
|
|
|
if(!g_bSaveStateOnExit || bDone)
|
|
return;
|
|
|
|
Snapshot_SaveState();
|
|
|
|
bDone = true;
|
|
}
|