643 lines
17 KiB
C++
643 lines
17 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) 2006-2015, 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 "YamlHelper.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 "Pravets.h"
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#include "SerialComms.h"
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#include "Speaker.h"
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#include "Speech.h"
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#include "Video.h"
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#include "z80emu.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.yaml"
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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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static YamlHelper yamlHelper;
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#define SS_FILE_VER 2
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#define UNIT_APPLE2_VER 1
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#define UNIT_SLOTS_VER 1
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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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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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PostMessage(g_hFrameWindow, WM_USER_RESTART, 0, 0); // Power-cycle VM (undoing all the new state just loaded)
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}
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delete [] pSS;
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}
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//-----------------------------------------------------------------------------
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static HANDLE m_hFile = INVALID_HANDLE_VALUE;
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static CConfigNeedingRestart m_ConfigNew;
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static std::string GetSnapshotUnitApple2Name(void)
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{
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static const std::string name("Apple2");
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return name;
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}
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static std::string GetSnapshotUnitSlotsName(void)
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{
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static const std::string name("Slots");
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return name;
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}
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#define SS_YAML_KEY_MODEL "Model"
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#define SS_YAML_VALUE_APPLE2 "Apple]["
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#define SS_YAML_VALUE_APPLE2PLUS "Apple][+"
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#define SS_YAML_VALUE_APPLE2E "Apple//e"
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#define SS_YAML_VALUE_APPLE2EENHANCED "Enhanced Apple//e"
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#define SS_YAML_VALUE_APPLE2C "Apple2c"
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#define SS_YAML_VALUE_PRAVETS82 "Pravets82"
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#define SS_YAML_VALUE_PRAVETS8M "Pravets8M"
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#define SS_YAML_VALUE_PRAVETS8A "Pravets8A"
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static eApple2Type ParseApple2Type(std::string type)
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{
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if (type == SS_YAML_VALUE_APPLE2) return A2TYPE_APPLE2;
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else if (type == SS_YAML_VALUE_APPLE2PLUS) return A2TYPE_APPLE2PLUS;
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else if (type == SS_YAML_VALUE_APPLE2E) return A2TYPE_APPLE2E;
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else if (type == SS_YAML_VALUE_APPLE2EENHANCED) return A2TYPE_APPLE2EENHANCED;
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else if (type == SS_YAML_VALUE_APPLE2C) return A2TYPE_APPLE2C;
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else if (type == SS_YAML_VALUE_PRAVETS82) return A2TYPE_PRAVETS82;
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else if (type == SS_YAML_VALUE_PRAVETS8M) return A2TYPE_PRAVETS8M;
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else if (type == SS_YAML_VALUE_PRAVETS8A) return A2TYPE_PRAVETS8A;
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throw std::string("Load: Unknown Apple2 type");
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}
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static std::string GetApple2TypeAsString(void)
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{
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switch ( GetApple2Type() )
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{
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case A2TYPE_APPLE2: return SS_YAML_VALUE_APPLE2;
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case A2TYPE_APPLE2PLUS: return SS_YAML_VALUE_APPLE2PLUS;
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case A2TYPE_APPLE2E: return SS_YAML_VALUE_APPLE2E;
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case A2TYPE_APPLE2EENHANCED:return SS_YAML_VALUE_APPLE2EENHANCED;
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case A2TYPE_APPLE2C: return SS_YAML_VALUE_APPLE2C;
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case A2TYPE_PRAVETS82: return SS_YAML_VALUE_PRAVETS82;
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case A2TYPE_PRAVETS8M: return SS_YAML_VALUE_PRAVETS8M;
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case A2TYPE_PRAVETS8A: return SS_YAML_VALUE_PRAVETS8A;
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default:
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throw std::string("Save: Unknown Apple2 type");
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}
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}
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//---
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static UINT ParseFileHdr(void)
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{
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std::string scalar;
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if (!yamlHelper.GetScalar(scalar))
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throw std::string(SS_YAML_KEY_FILEHDR ": Failed to find scalar");
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if (scalar != SS_YAML_KEY_FILEHDR)
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throw std::string("Failed to find file header");
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yamlHelper.GetMapStartEvent();
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YamlLoadHelper yamlLoadHelper(yamlHelper);
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//
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std::string value = yamlLoadHelper.LoadString(SS_YAML_KEY_TAG);
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if (value != SS_YAML_VALUE_AWSS)
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{
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//printf("%s: Bad tag (%s) - expected %s\n", SS_YAML_KEY_FILEHDR, value.c_str(), SS_YAML_VALUE_AWSS);
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throw std::string(SS_YAML_KEY_FILEHDR ": Bad tag");
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}
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return yamlLoadHelper.LoadUint(SS_YAML_KEY_VERSION);
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}
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//---
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static void ParseUnitApple2(YamlLoadHelper& yamlLoadHelper, UINT version)
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{
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if (version != UNIT_APPLE2_VER)
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throw std::string(SS_YAML_KEY_UNIT ": Apple2: Version mismatch");
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std::string model = yamlLoadHelper.LoadString(SS_YAML_KEY_MODEL);
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SetApple2Type( ParseApple2Type(model) ); // NB. Sets default main CPU type
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m_ConfigNew.m_Apple2Type = GetApple2Type();
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CpuLoadSnapshot(yamlLoadHelper); // NB. Overrides default main CPU type
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m_ConfigNew.m_CpuType = GetMainCpu();
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JoyLoadSnapshot(yamlLoadHelper);
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KeybLoadSnapshot(yamlLoadHelper);
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SpkrLoadSnapshot(yamlLoadHelper);
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VideoLoadSnapshot(yamlLoadHelper);
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MemLoadSnapshot(yamlLoadHelper);
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}
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//---
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static void ParseSlots(YamlLoadHelper& yamlLoadHelper, UINT version)
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{
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if (version != UNIT_SLOTS_VER)
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throw std::string(SS_YAML_KEY_UNIT ": Slots: Version mismatch");
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while (1)
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{
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std::string scalar = yamlLoadHelper.GetMapNextSlotNumber();
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if (scalar.empty())
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break; // done all slots
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const int slot = strtoul(scalar.c_str(), NULL, 10); // NB. aux slot supported as a different "unit"
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if (slot < 1 || slot > 7)
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throw std::string("Slots: Invalid slot #: ") + scalar;
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yamlLoadHelper.GetSubMap(scalar);
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std::string card = yamlLoadHelper.LoadString(SS_YAML_KEY_CARD);
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UINT version = yamlLoadHelper.LoadUint(SS_YAML_KEY_VERSION);
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if (!yamlLoadHelper.GetSubMap(std::string(SS_YAML_KEY_STATE)))
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throw std::string(SS_YAML_KEY_UNIT ": Expected sub-map name: " SS_YAML_KEY_STATE);
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bool bIsCardSupported = true;
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SS_CARDTYPE type = CT_Empty;
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bool bRes = false;
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if (card == Printer_GetSnapshotCardName())
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{
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bRes = Printer_LoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_GenericPrinter;
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}
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else if (card == sg_SSC.GetSnapshotCardName())
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{
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bRes = sg_SSC.LoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_SSC;
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}
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else if (card == sg_Mouse.GetSnapshotCardName())
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{
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bRes = sg_Mouse.LoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_MouseInterface;
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}
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else if (card == Z80_GetSnapshotCardName())
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{
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bRes = Z80_LoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_Z80;
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}
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else if (card == MB_GetSnapshotCardName())
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{
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bRes = MB_LoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_MockingboardC;
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}
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else if (card == Phasor_GetSnapshotCardName())
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{
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bRes = Phasor_LoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_Phasor;
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}
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else if (card == DiskGetSnapshotCardName())
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{
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bRes = DiskLoadSnapshot(yamlLoadHelper, slot, version);
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type = CT_Disk2;
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}
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else if (card == HD_GetSnapshotCardName())
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{
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bRes = HD_LoadSnapshot(yamlLoadHelper, slot, version, g_strSaveStatePath);
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m_ConfigNew.m_bEnableHDD = true;
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type = CT_GenericHDD;
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}
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else
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{
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bIsCardSupported = false;
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throw std::string("Slots: Unknown card: " + card); // todo: don't throw - just ignore & continue
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}
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if (bRes && bIsCardSupported)
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{
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m_ConfigNew.m_Slot[slot] = type;
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}
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yamlLoadHelper.PopMap();
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yamlLoadHelper.PopMap();
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}
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}
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//---
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static void ParseUnit(void)
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{
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yamlHelper.GetMapStartEvent();
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YamlLoadHelper yamlLoadHelper(yamlHelper);
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std::string unit = yamlLoadHelper.LoadString(SS_YAML_KEY_TYPE);
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UINT version = yamlLoadHelper.LoadUint(SS_YAML_KEY_VERSION);
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if (!yamlLoadHelper.GetSubMap(std::string(SS_YAML_KEY_STATE)))
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throw std::string(SS_YAML_KEY_UNIT ": Expected sub-map name: " SS_YAML_KEY_STATE);
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if (unit == GetSnapshotUnitApple2Name())
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{
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ParseUnitApple2(yamlLoadHelper, version);
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}
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else if (unit == MemGetSnapshotUnitAuxSlotName())
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{
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MemLoadSnapshotAux(yamlLoadHelper, version);
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}
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else if (unit == GetSnapshotUnitSlotsName())
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{
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ParseSlots(yamlLoadHelper, version);
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}
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else
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{
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throw std::string(SS_YAML_KEY_UNIT ": Unknown type: " ) + unit;
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}
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}
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static void Snapshot_LoadState_v2(void)
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{
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try
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{
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int res = yamlHelper.InitParser( g_strSaveStatePathname.c_str() );
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if (!res)
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throw std::string("Failed to initialize parser or open file"); // TODO: disambiguate
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UINT version = ParseFileHdr();
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if (version != SS_FILE_VER)
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throw std::string("Version mismatch");
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//
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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[3] = CT_Uthernet; // todo
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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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//ConfigOld.m_SlotAux = ?; // 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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m_ConfigNew.m_SlotAux = CT_Empty;
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m_ConfigNew.m_bEnableHDD = false;
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//m_ConfigNew.m_bEnableTheFreezesF8Rom = ?; // todo: when support saving config
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//m_ConfigNew.m_bEnhanceDisk = ?; // todo: when support saving config
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MemReset();
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PravetsReset();
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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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#ifdef USE_SPEECH_API
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g_Speech.Reset();
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#endif
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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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std::string scalar;
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while(yamlHelper.GetScalar(scalar))
|
|
{
|
|
if (scalar == SS_YAML_KEY_UNIT)
|
|
ParseUnit();
|
|
else
|
|
throw std::string("Unknown top-level scalar: " + scalar);
|
|
}
|
|
|
|
SetLoadedSaveStateFlag(true);
|
|
|
|
// NB. The following disparity should be resolved:
|
|
// . A change in h/w via the Configuration property sheets results in a the VM completely restarting (via WM_USER_RESTART)
|
|
// . A change in h/w via loading a save-state avoids this VM restart
|
|
// The latter is the desired approach (as the former needs a "power-on" / F2 to start things again)
|
|
|
|
sg_PropertySheet.ApplyNewConfig(m_ConfigNew, ConfigOld);
|
|
|
|
MemInitializeROM();
|
|
MemInitializeCustomF8ROM();
|
|
MemInitializeIO();
|
|
|
|
MemUpdatePaging(TRUE);
|
|
|
|
// g_Apple2Type may've changed: so redraw frame (title, buttons, leds, etc)
|
|
SetCharsetType();
|
|
VideoReinitialize(); // g_CharsetType changed
|
|
FrameUpdateApple2Type();
|
|
}
|
|
catch(std::string szMessage)
|
|
{
|
|
MessageBox( g_hFrameWindow,
|
|
szMessage.c_str(),
|
|
TEXT("Load State"),
|
|
MB_ICONEXCLAMATION | MB_SETFOREGROUND);
|
|
|
|
PostMessage(g_hFrameWindow, WM_USER_RESTART, 0, 0); // Power-cycle VM (undoing all the new state just loaded)
|
|
}
|
|
|
|
yamlHelper.FinaliseParser();
|
|
}
|
|
|
|
void Snapshot_LoadState()
|
|
{
|
|
const std::string ext_aws = (".aws");
|
|
const size_t pos = g_strSaveStatePathname.size() - ext_aws.size();
|
|
if (g_strSaveStatePathname.find(ext_aws, pos) != std::string::npos) // find ".aws" at end of pathname
|
|
{
|
|
Snapshot_LoadState_v1();
|
|
return;
|
|
}
|
|
|
|
Snapshot_LoadState_v2();
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// todo:
|
|
// . Uthernet card
|
|
|
|
void Snapshot_SaveState(void)
|
|
{
|
|
try
|
|
{
|
|
YamlSaveHelper yamlSaveHelper(g_strSaveStatePathname);
|
|
yamlSaveHelper.FileHdr(SS_FILE_VER);
|
|
|
|
// Unit: Apple2
|
|
{
|
|
yamlSaveHelper.UnitHdr(GetSnapshotUnitApple2Name(), UNIT_APPLE2_VER);
|
|
YamlSaveHelper::Label state(yamlSaveHelper, "%s:\n", SS_YAML_KEY_STATE);
|
|
|
|
yamlSaveHelper.Save("%s: %s\n", SS_YAML_KEY_MODEL, GetApple2TypeAsString().c_str());
|
|
CpuSaveSnapshot(yamlSaveHelper);
|
|
JoySaveSnapshot(yamlSaveHelper);
|
|
KeybSaveSnapshot(yamlSaveHelper);
|
|
SpkrSaveSnapshot(yamlSaveHelper);
|
|
VideoSaveSnapshot(yamlSaveHelper);
|
|
MemSaveSnapshot(yamlSaveHelper);
|
|
}
|
|
|
|
// Unit: Aux slot
|
|
MemSaveSnapshotAux(yamlSaveHelper);
|
|
|
|
// Unit: Slots
|
|
{
|
|
yamlSaveHelper.UnitHdr(GetSnapshotUnitSlotsName(), UNIT_SLOTS_VER);
|
|
YamlSaveHelper::Label state(yamlSaveHelper, "%s:\n", SS_YAML_KEY_STATE);
|
|
|
|
Printer_SaveSnapshot(yamlSaveHelper);
|
|
|
|
sg_SSC.SaveSnapshot(yamlSaveHelper);
|
|
|
|
sg_Mouse.SaveSnapshot(yamlSaveHelper);
|
|
|
|
if (g_Slot4 == CT_Z80)
|
|
Z80_SaveSnapshot(yamlSaveHelper, 4);
|
|
|
|
if (g_Slot5 == CT_Z80)
|
|
Z80_SaveSnapshot(yamlSaveHelper, 5);
|
|
|
|
if (g_Slot4 == CT_MockingboardC)
|
|
MB_SaveSnapshot(yamlSaveHelper, 4);
|
|
|
|
if (g_Slot5 == CT_MockingboardC)
|
|
MB_SaveSnapshot(yamlSaveHelper, 5);
|
|
|
|
if (g_Slot4 == CT_Phasor)
|
|
Phasor_SaveSnapshot(yamlSaveHelper, 4);
|
|
|
|
DiskSaveSnapshot(yamlSaveHelper);
|
|
|
|
HD_SaveSnapshot(yamlSaveHelper);
|
|
}
|
|
}
|
|
catch(std::string szMessage)
|
|
{
|
|
MessageBox( g_hFrameWindow,
|
|
szMessage.c_str(),
|
|
TEXT("Save State"),
|
|
MB_ICONEXCLAMATION | MB_SETFOREGROUND);
|
|
}
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
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;
|
|
}
|