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Merge branch 'master' of github.com:AppleWin/AppleWin

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This commit is contained in:
tomcw 2014-07-20 10:30:21 +01:00
commit 5d64ea5673
13 changed files with 271 additions and 157 deletions
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22
bin/History.txt
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@ -13,6 +13,28 @@ Restrictions/bugs:
- SSI263 emulation is very basic: there is no attempt to emulate rate, inflection or filters.
- During Mockingboard playback, Speaker emulation isn't precise
In Development:
---------------
Changes:
. Added command line switch to specify the type of memory initialization pattern.
-memclear #
Where # ranges from 0 to 7.
i.e.
-memclear 0 Initialize memory to zero
-memclear 1 Initialize memory to random values
-memclear 2 Initialize memory to 4 byte pattern: FF FF 00 00
-memclear 3 Initialize memory to even pages FF, odd pages 00
-memclear 4 Initialize memory to first half page 00, last half page FF
-memclear 5 Initialize memory to first half page FF, last half page 00
-memclear 6 Initialize memory to byte offset of page
(current memory address low byte)
-memclear 7 Initialize memory to page address
(current memory address high byte)
Fixed:
. [Bug #206] Pooyan freezes due to RNDL/RNDH not initialized to non-zero values
Latest:
-------

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ddraw_lib/x64/ddraw.lib Normal file
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ddraw_lib/x64/dxguid.lib Normal file
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14
source/Applewin.cpp
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@ -62,12 +62,10 @@ AppMode_e g_nAppMode = MODE_LOGO;
static bool g_bLoadedSaveState = false;
static int lastmode = MODE_LOGO;
DWORD needsprecision = 0; // Redundant
TCHAR g_sProgramDir[MAX_PATH] = TEXT(""); // Directory of where AppleWin executable resides
TCHAR g_sDebugDir [MAX_PATH] = TEXT(""); // TODO: Not currently used
TCHAR g_sScreenShotDir[MAX_PATH] = TEXT(""); // TODO: Not currently used
TCHAR g_sCurrentDir[MAX_PATH] = TEXT(""); // Also Starting Dir. Debugger uses this when load/save
bool g_bResetTiming = false; // Redundant
BOOL restart = 0;
DWORD g_dwSpeed = SPEED_NORMAL; // Affected by Config dialog's speed slider bar
@ -81,6 +79,7 @@ FILE* g_fh = NULL;
bool g_bDisableDirectInput = false;
bool g_bDisableDirectSound = false;
bool g_bDisableDirectSoundMockingboard = false;
int g_nMemoryClearType = -1;
IPropertySheet& sg_PropertySheet = * new CPropertySheet;
CSuperSerialCard sg_SSC;
@ -830,6 +829,17 @@ int APIENTRY WinMain(HINSTANCE passinstance, HINSTANCE, LPSTR lpCmdLine, int)
{
g_bDisableDirectSoundMockingboard = true;
}
else if (strcmp(lpCmdLine, "-memclear") == 0)
{
lpCmdLine = GetCurrArg(lpNextArg);
lpNextArg = GetNextArg(lpNextArg);
g_nMemoryClearType = atoi(lpCmdLine);
if (g_nMemoryClearType < 0)
g_nMemoryClearType = 0;
else
if (g_nMemoryClearType >= NUM_MIP)
g_nMemoryClearType = NUM_MIP - 1;
}
#ifdef RAMWORKS
else if (strcmp(lpCmdLine, "-r") == 0) // RamWorks size [1..127]
{

5
source/Applewin.h
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@ -4,7 +4,7 @@ void SetCurrentCLK6502();
void SetCurrentImageDir(const char* pszImageDir);
extern char VERSIONSTRING[]; // Contructed in WinMain()
extern char VERSIONSTRING[]; // Constructed in WinMain()
extern TCHAR *g_pAppTitle;
@ -27,11 +27,9 @@ extern AppMode_e g_nAppMode;
bool GetLoadedSaveStateFlag(void);
void SetLoadedSaveStateFlag(const bool bFlag);
extern DWORD needsprecision;
extern TCHAR g_sProgramDir[MAX_PATH];
extern TCHAR g_sCurrentDir[MAX_PATH];
extern bool g_bResetTiming;
extern BOOL restart;
extern DWORD g_dwSpeed;
@ -44,6 +42,7 @@ extern FILE* g_fh; // Filehandle for log file
extern bool g_bDisableDirectInput; // Cmd line switch: don't init DI (so no DIMouse support)
extern bool g_bDisableDirectSound; // Cmd line switch: don't init DS (so no MB/Speaker support)
extern bool g_bDisableDirectSoundMockingboard; // Cmd line switch: don't init MB support
extern int g_nMemoryClearType; // Cmd line switch: use specific MIP (Memory Initialization Pattern)
extern SS_CARDTYPE g_Slot4; // Mockingboard, Z80, Mouse in slot4
extern SS_CARDTYPE g_Slot5; // Mockingboard, Z80, in slot5

1
source/Debugger/Debug.cpp
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@ -721,7 +721,6 @@ Update_t CmdBenchmarkStop (int nArgs)
while ((extbench = GetTickCount()) != currtime)
; // intentional busy-waiting
KeybQueueKeypress(TEXT(' '),1);
g_bResetTiming = true;
return UPDATE_ALL; // 0;
}

1
source/Disk.cpp
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@ -934,7 +934,6 @@ void DiskUpdatePosition(DWORD cycles)
if ((!enhancedisk) && (!diskaccessed) && fptr->spinning)
{
needsprecision = cumulativecycles;
fptr->byte += (cycles >> 5);
if (fptr->byte >= fptr->nibbles)
fptr->byte -= fptr->nibbles;

2
source/Frame.cpp
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@ -1009,7 +1009,6 @@ LRESULT CALLBACK FrameWndProc (
DrawStatusArea((HDC)0,DRAW_TITLE);
if ((g_nAppMode != MODE_LOGO) && (g_nAppMode != MODE_DEBUG))
VideoRedrawScreen();
g_bResetTiming = true;
}
else if ((wparam == VK_SCROLL) && sg_PropertySheet.GetScrollLockToggle())
{
@ -1564,7 +1563,6 @@ static void ProcessButtonClick(int button, bool bFromButtonUI /*=false*/)
}
DrawStatusArea((HDC)0,DRAW_TITLE);
VideoRedrawScreen();
g_bResetTiming = true;
break;
case BTN_DRIVE1:

375
source/Memory.cpp
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@ -1017,9 +1017,9 @@ BYTE __stdcall MemCheckPaging (WORD, WORD address, BYTE, BYTE, ULONG)
void MemDestroy ()
{
//if (fastpaging)
// MemSetFastPaging(0);
// VirtualFree(memimage,MAX(0x30000,0x10000*1),MEM_DECOMMIT);
//if (fastpaging)
// MemSetFastPaging(0);
// VirtualFree(memimage,MAX(0x30000,0x10000*1),MEM_DECOMMIT);
VirtualFree(memaux ,0,MEM_RELEASE);
VirtualFree(memmain ,0,MEM_RELEASE);
@ -1215,13 +1215,13 @@ void MemInitialize()
HRSRC hResInfo = NULL;
switch (g_Apple2Type)
{
case A2TYPE_APPLE2: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2_ROM), "ROM"); ROM_SIZE = Apple2RomSize; break;
case A2TYPE_APPLE2PLUS: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2_PLUS_ROM), "ROM"); ROM_SIZE = Apple2RomSize; break;
case A2TYPE_APPLE2E: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2E_ROM), "ROM"); ROM_SIZE = Apple2eRomSize; break;
case A2TYPE_APPLE2: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2_ROM ), "ROM"); ROM_SIZE = Apple2RomSize ; break;
case A2TYPE_APPLE2PLUS: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2_PLUS_ROM ), "ROM"); ROM_SIZE = Apple2RomSize ; break;
case A2TYPE_APPLE2E: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2E_ROM ), "ROM"); ROM_SIZE = Apple2eRomSize; break;
case A2TYPE_APPLE2EENHANCED:hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_APPLE2E_ENHANCED_ROM), "ROM"); ROM_SIZE = Apple2eRomSize; break;
case A2TYPE_PRAVETS82: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRAVETS_82_ROM), "ROM"); ROM_SIZE = Apple2RomSize; break;
case A2TYPE_PRAVETS8M: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRAVETS_8M_ROM), "ROM"); ROM_SIZE = Apple2RomSize; break;
case A2TYPE_PRAVETS8A: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRAVETS_8C_ROM), "ROM"); ROM_SIZE = Apple2eRomSize; break;
case A2TYPE_PRAVETS82: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRAVETS_82_ROM ), "ROM"); ROM_SIZE = Apple2RomSize ; break;
case A2TYPE_PRAVETS8M: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRAVETS_8M_ROM ), "ROM"); ROM_SIZE = Apple2RomSize ; break;
case A2TYPE_PRAVETS8A: hResInfo = FindResource(NULL, MAKEINTRESOURCE(IDR_PRAVETS_8C_ROM ), "ROM"); ROM_SIZE = Apple2eRomSize; break;
}
if(hResInfo == NULL)
@ -1229,14 +1229,14 @@ void MemInitialize()
TCHAR sRomFileName[ MAX_PATH ];
switch (g_Apple2Type)
{
case A2TYPE_APPLE2: _tcscpy(sRomFileName, TEXT("APPLE2.ROM")); break;
case A2TYPE_APPLE2PLUS: _tcscpy(sRomFileName, TEXT("APPLE2_PLUS.ROM")); break;
case A2TYPE_APPLE2E: _tcscpy(sRomFileName, TEXT("APPLE2E.ROM")); break;
case A2TYPE_APPLE2: _tcscpy(sRomFileName, TEXT("APPLE2.ROM" )); break;
case A2TYPE_APPLE2PLUS: _tcscpy(sRomFileName, TEXT("APPLE2_PLUS.ROM" )); break;
case A2TYPE_APPLE2E: _tcscpy(sRomFileName, TEXT("APPLE2E.ROM" )); break;
case A2TYPE_APPLE2EENHANCED:_tcscpy(sRomFileName, TEXT("APPLE2E_ENHANCED.ROM")); break;
case A2TYPE_PRAVETS82: _tcscpy(sRomFileName, TEXT("PRAVETS82.ROM")); break;
case A2TYPE_PRAVETS8M: _tcscpy(sRomFileName, TEXT("PRAVETS8M.ROM")); break;
case A2TYPE_PRAVETS8A: _tcscpy(sRomFileName, TEXT("PRAVETS8C.ROM")); break;
default:
case A2TYPE_PRAVETS82: _tcscpy(sRomFileName, TEXT("PRAVETS82.ROM" )); break;
case A2TYPE_PRAVETS8M: _tcscpy(sRomFileName, TEXT("PRAVETS8M.ROM" )); break;
case A2TYPE_PRAVETS8A: _tcscpy(sRomFileName, TEXT("PRAVETS8C.ROM" )); break;
default:
{
_tcscpy(sRomFileName, TEXT("Unknown type!"));
REGSAVE(TEXT(REGVALUE_APPLE2_TYPE), A2TYPE_APPLE2EENHANCED);
@ -1357,6 +1357,11 @@ void MemInitialize()
MemReset();
}
inline DWORD getRandomTime()
{
return rand() ^ timeGetTime(); // We can't use g_nCumulativeCycles as it will be zero on a fresh execution.
}
//===========================================================================
// Called by:
@ -1379,19 +1384,96 @@ void MemReset ()
int iByte;
if (g_eMemoryInitPattern == MIP_FF_FF_00_00)
{
for( iByte = 0x0000; iByte < 0xC000; )
{
memmain[ iByte++ ] = 0xFF;
memmain[ iByte++ ] = 0xFF;
// Memory is pseudo-initialized across various models of Apple ][ //e //c
// We chose a random one for nostalgia's sake
// To inspect:
// F2. Ctrl-F2. CALL-151, C050 C053 C057
// OR
// F2, Ctrl-F2, F7, HGR
DWORD clock = getRandomTime();
// Note: ODD 16-bit words are zero'd above...
iByte++;
iByte++;
}
if (g_nMemoryClearType >= 0)
g_eMemoryInitPattern = static_cast<MemoryInitPattern_e>(g_nMemoryClearType);
else // random
g_eMemoryInitPattern = static_cast<MemoryInitPattern_e>( clock % NUM_MIP );
switch( g_eMemoryInitPattern )
{
case MIP_FF_FF_00_00:
for( iByte = 0x0000; iByte < 0xC000; iByte += 4 ) // NB. ODD 16-bit words are zero'd above...
{
memmain[ iByte+0 ] = 0xFF;
memmain[ iByte+1 ] = 0xFF;
}
// Exceptions: xx28 xx29 xx68 xx69 Apple //e
for( iByte = 0x0000; iByte < 0xC000; iByte += 512 )
{
clock = getRandomTime();
memmain[ iByte + 0x28 ] = (clock >> 0) & 0xFF;
memmain[ iByte + 0x29 ] = (clock >> 8) & 0xFF;
clock = getRandomTime();
memmain[ iByte + 0x68 ] = (clock >> 0) & 0xFF;
memmain[ iByte + 0x69 ] = (clock >> 8) & 0xFF;
}
break;
case MIP_FF_00_FULL_PAGE:
for( iByte = 0x0000; iByte < 0xC000; iByte += 512 )
{
memset( &memmain[ iByte ], 0xFF, 256 );
// Exceptions: xx28: 00 xx68:00 Apple //e Platinum NTSC
memmain[ iByte + 0x28 ] = 0x00;
memmain[ iByte + 0x68 ] = 0x00;
}
break;
case MIP_00_FF_HALF_PAGE:
for( iByte = 0x0080; iByte < 0xC000; iByte += 256 ) // NB. start = 0x80, delta = 0x100 !
memset( &memmain[ iByte ], 0xFF, 128 );
break;
case MIP_FF_00_HALF_PAGE:
for( iByte = 0x0000; iByte < 0xC000; iByte += 256 )
memset( &memmain[ iByte ], 0xFF, 128 );
break;
case MIP_RANDOM:
unsigned char random[ 256 + 4 ];
for( iByte = 0x0000; iByte < 0xC000; iByte += 256 )
{
for( int i = 0; i < 256; i++ )
{
clock = getRandomTime();
random[ i+0 ] ^= (clock >> 0) & 0xFF;
random[ i+1 ] ^= (clock >> 11) & 0xFF;
}
memcpy( &memmain[ iByte ], random, 256 );
}
break;
case MIP_PAGE_ADDRESS_LOW:
for( iByte = 0x0000; iByte < 0xC000; iByte++ )
memmain[ iByte ] = iByte & 0xFF;
break;
case MIP_PAGE_ADDRESS_HIGH:
for( iByte = 0x0000; iByte < 0xC000; iByte += 256 )
memset( &memmain[ iByte ], (iByte >> 8), 256 );
break;
default: // MIP_ZERO -- nothing to do
break;
}
// https://github.com/AppleWin/AppleWin/issues/206
// Work-around for a cold-booting bug in "Pooyan" which expects RNDL and RNDH to be non-zero.
clock = getRandomTime();
memmain[ 0x4E ] = 0x20 | (clock >> 0) & 0xFF;
memmain[ 0x4F ] = 0x20 | (clock >> 8) & 0xFF;
// SET UP THE MEMORY IMAGE
mem = memimage;
//image = 0;
@ -1414,8 +1496,8 @@ void MemReset ()
// . Snapshot_LoadState()
void MemResetPaging ()
{
ResetPaging(0);
if (g_Apple2Type == A2TYPE_PRAVETS8A)
ResetPaging(0);
if (g_Apple2Type == A2TYPE_PRAVETS8A)
{
P8CAPS_ON = false;
TapeWrite (0, 0, 0, 0 ,0);
@ -1426,30 +1508,31 @@ void MemResetPaging ()
//===========================================================================
// Called by Disk][ I/O only
BYTE MemReturnRandomData (BYTE highbit)
BYTE MemReturnRandomData(BYTE highbit)
{
static const BYTE retval[16] = {0x00,0x2D,0x2D,0x30,0x30,0x32,0x32,0x34,
0x35,0x39,0x43,0x43,0x43,0x60,0x7F,0x7F};
BYTE r = (BYTE)(rand() & 0xFF);
if (r <= 170)
return 0x20 | (highbit ? 0x80 : 0);
else
return retval[r & 15] | (highbit ? 0x80 : 0);
static const BYTE retval[16] = {
0x00,0x2D,0x2D,0x30,0x30,0x32,0x32,0x34,
0x35,0x39,0x43,0x43,0x43,0x60,0x7F,0x7F };
BYTE r = (BYTE)(rand() & 0xFF);
if (r <= 170)
return 0x20 | (highbit ? 0x80 : 0);
else
return retval[r & 15] | (highbit ? 0x80 : 0);
}
//===========================================================================
BYTE MemReadFloatingBus(const ULONG uExecutedCycles)
{
return*(LPBYTE)(mem + VideoGetScannerAddress(NULL, uExecutedCycles));
return*(LPBYTE)(mem + VideoGetScannerAddress(NULL, uExecutedCycles));
}
//===========================================================================
BYTE MemReadFloatingBus(const BYTE highbit, const ULONG uExecutedCycles)
{
BYTE r = *(LPBYTE)(mem + VideoGetScannerAddress(NULL, uExecutedCycles));
return (r & ~0x80) | ((highbit) ? 0x80 : 0);
BYTE r = *(LPBYTE)(mem + VideoGetScannerAddress(NULL, uExecutedCycles));
return (r & ~0x80) | ((highbit) ? 0x80 : 0);
}
//===========================================================================
@ -1508,128 +1591,128 @@ static void DebugFlip(WORD address, ULONG nCyclesLeft)
BYTE __stdcall MemSetPaging (WORD programcounter, WORD address, BYTE write, BYTE value, ULONG nCyclesLeft)
{
address &= 0xFF;
DWORD lastmemmode = memmode;
address &= 0xFF;
DWORD lastmemmode = memmode;
#if defined(_DEBUG) && defined(DEBUG_FLIP_TIMINGS)
DebugFlip(address, nCyclesLeft);
DebugFlip(address, nCyclesLeft);
#endif
// DETERMINE THE NEW MEMORY PAGING MODE.
if ((address >= 0x80) && (address <= 0x8F))
{
BOOL writeram = (address & 1);
SetMemMode(memmode & ~(MF_BANK2 | MF_HIGHRAM | MF_WRITERAM));
lastwriteram = 1; // note: because diags.do doesn't set switches twice!
if (lastwriteram && writeram)
SetMemMode(memmode | MF_WRITERAM);
if (!(address & 8))
SetMemMode(memmode | MF_BANK2);
if (((address & 2) >> 1) == (address & 1))
SetMemMode(memmode | MF_HIGHRAM);
lastwriteram = writeram;
}
else if (!IS_APPLE2)
{
switch (address)
// DETERMINE THE NEW MEMORY PAGING MODE.
if ((address >= 0x80) && (address <= 0x8F))
{
case 0x00: SetMemMode(memmode & ~MF_80STORE); break;
case 0x01: SetMemMode(memmode | MF_80STORE); break;
case 0x02: SetMemMode(memmode & ~MF_AUXREAD); break;
case 0x03: SetMemMode(memmode | MF_AUXREAD); break;
case 0x04: SetMemMode(memmode & ~MF_AUXWRITE); break;
case 0x05: SetMemMode(memmode | MF_AUXWRITE); break;
case 0x06: SetMemMode(memmode | MF_SLOTCXROM); break;
case 0x07: SetMemMode(memmode & ~MF_SLOTCXROM); break;
case 0x08: SetMemMode(memmode & ~MF_ALTZP); break;
case 0x09: SetMemMode(memmode | MF_ALTZP); break;
case 0x0A: SetMemMode(memmode & ~MF_SLOTC3ROM); break;
case 0x0B: SetMemMode(memmode | MF_SLOTC3ROM); break;
case 0x54: SetMemMode(memmode & ~MF_PAGE2); break;
case 0x55: SetMemMode(memmode | MF_PAGE2); break;
case 0x56: SetMemMode(memmode & ~MF_HIRES); break;
case 0x57: SetMemMode(memmode | MF_HIRES); break;
BOOL writeram = (address & 1);
SetMemMode(memmode & ~(MF_BANK2 | MF_HIGHRAM | MF_WRITERAM));
lastwriteram = 1; // note: because diags.do doesn't set switches twice!
if (lastwriteram && writeram)
SetMemMode(memmode | MF_WRITERAM);
if (!(address & 8))
SetMemMode(memmode | MF_BANK2);
if (((address & 2) >> 1) == (address & 1))
SetMemMode(memmode | MF_HIGHRAM);
lastwriteram = writeram;
}
else if (!IS_APPLE2)
{
switch (address)
{
case 0x00: SetMemMode(memmode & ~MF_80STORE); break;
case 0x01: SetMemMode(memmode | MF_80STORE); break;
case 0x02: SetMemMode(memmode & ~MF_AUXREAD); break;
case 0x03: SetMemMode(memmode | MF_AUXREAD); break;
case 0x04: SetMemMode(memmode & ~MF_AUXWRITE); break;
case 0x05: SetMemMode(memmode | MF_AUXWRITE); break;
case 0x06: SetMemMode(memmode | MF_SLOTCXROM); break;
case 0x07: SetMemMode(memmode & ~MF_SLOTCXROM); break;
case 0x08: SetMemMode(memmode & ~MF_ALTZP); break;
case 0x09: SetMemMode(memmode | MF_ALTZP); break;
case 0x0A: SetMemMode(memmode & ~MF_SLOTC3ROM); break;
case 0x0B: SetMemMode(memmode | MF_SLOTC3ROM); break;
case 0x54: SetMemMode(memmode & ~MF_PAGE2); break;
case 0x55: SetMemMode(memmode | MF_PAGE2); break;
case 0x56: SetMemMode(memmode & ~MF_HIRES); break;
case 0x57: SetMemMode(memmode | MF_HIRES); break;
#ifdef RAMWORKS
case 0x71: // extended memory aux page number
case 0x73: // Ramworks III set aux page number
if ((value < g_uMaxExPages) && RWpages[value])
{
memaux = RWpages[value];
//memmode &= ~MF_RWPMASK;
//memmode |= value;
//if (fastpaging)
// UpdateFastPaging();
//else
UpdatePaging(0,0);
}
break;
case 0x71: // extended memory aux page number
case 0x73: // Ramworks III set aux page number
if ((value < g_uMaxExPages) && RWpages[value])
{
memaux = RWpages[value];
//memmode &= ~MF_RWPMASK;
//memmode |= value;
//if (fastpaging)
// UpdateFastPaging();
//else
UpdatePaging(0,0);
}
break;
#endif
}
}
}
// IF THE EMULATED PROGRAM HAS JUST UPDATE THE MEMORY WRITE MODE AND IS
// ABOUT TO UPDATE THE MEMORY READ MODE, HOLD OFF ON ANY PROCESSING UNTIL
// IT DOES SO.
//
// NB. A 6502 interrupt occurring between these memory write & read updates could lead to incorrect behaviour.
// - although any date-race is probably a bug in the 6502 code too.
if ((address >= 4) && (address <= 5) &&
((*(LPDWORD)(mem+programcounter) & 0x00FFFEFF) == 0x00C0028D)) {
modechanging = 1;
return write ? 0 : MemReadFloatingBus(1, nCyclesLeft);
}
if ((address >= 0x80) && (address <= 0x8F) && (programcounter < 0xC000) &&
(((*(LPDWORD)(mem+programcounter) & 0x00FFFEFF) == 0x00C0048D) ||
((*(LPDWORD)(mem+programcounter) & 0x00FFFEFF) == 0x00C0028D))) {
modechanging = 1;
return write ? 0 : MemReadFloatingBus(1, nCyclesLeft);
}
// IF THE EMULATED PROGRAM HAS JUST UPDATE THE MEMORY WRITE MODE AND IS
// ABOUT TO UPDATE THE MEMORY READ MODE, HOLD OFF ON ANY PROCESSING UNTIL
// IT DOES SO.
//
// NB. A 6502 interrupt occurring between these memory write & read updates could lead to incorrect behaviour.
// - although any date-race is probably a bug in the 6502 code too.
if ((address >= 4) && (address <= 5) &&
((*(LPDWORD)(mem+programcounter) & 0x00FFFEFF) == 0x00C0028D)) {
modechanging = 1;
return write ? 0 : MemReadFloatingBus(1, nCyclesLeft);
}
if ((address >= 0x80) && (address <= 0x8F) && (programcounter < 0xC000) &&
(((*(LPDWORD)(mem+programcounter) & 0x00FFFEFF) == 0x00C0048D) ||
((*(LPDWORD)(mem+programcounter) & 0x00FFFEFF) == 0x00C0028D))) {
modechanging = 1;
return write ? 0 : MemReadFloatingBus(1, nCyclesLeft);
}
// IF THE MEMORY PAGING MODE HAS CHANGED, UPDATE OUR MEMORY IMAGES AND
// WRITE TABLES.
if ((lastmemmode != memmode) || modechanging)
{
modechanging = 0;
if ((lastmemmode & MF_SLOTCXROM) != (memmode & MF_SLOTCXROM))
// IF THE MEMORY PAGING MODE HAS CHANGED, UPDATE OUR MEMORY IMAGES AND
// WRITE TABLES.
if ((lastmemmode != memmode) || modechanging)
{
if (SW_SLOTCXROM)
modechanging = 0;
if ((lastmemmode & MF_SLOTCXROM) != (memmode & MF_SLOTCXROM))
{
// Disable Internal ROM
// . Similar to $CFFF access
// . None of the peripheral cards can be driving the bus - so use the null ROM
memset(pCxRomPeripheral+0x800, 0, FIRMWARE_EXPANSION_SIZE);
memset(mem+FIRMWARE_EXPANSION_BEGIN, 0, FIRMWARE_EXPANSION_SIZE);
g_eExpansionRomType = eExpRomNull;
g_uPeripheralRomSlot = 0;
IoHandlerCardsIn();
}
else
{
// Enable Internal ROM
memcpy(mem+0xC800, pCxRomInternal+0x800, FIRMWARE_EXPANSION_SIZE);
g_eExpansionRomType = eExpRomInternal;
g_uPeripheralRomSlot = 0;
IoHandlerCardsOut();
if (SW_SLOTCXROM)
{
// Disable Internal ROM
// . Similar to $CFFF access
// . None of the peripheral cards can be driving the bus - so use the null ROM
memset(pCxRomPeripheral+0x800, 0, FIRMWARE_EXPANSION_SIZE);
memset(mem+FIRMWARE_EXPANSION_BEGIN, 0, FIRMWARE_EXPANSION_SIZE);
g_eExpansionRomType = eExpRomNull;
g_uPeripheralRomSlot = 0;
IoHandlerCardsIn();
}
else
{
// Enable Internal ROM
memcpy(mem+0xC800, pCxRomInternal+0x800, FIRMWARE_EXPANSION_SIZE);
g_eExpansionRomType = eExpRomInternal;
g_uPeripheralRomSlot = 0;
IoHandlerCardsOut();
}
}
//// IF FAST PAGING IS ACTIVE, WE KEEP MULTIPLE COMPLETE MEMORY IMAGES
//// AND WRITE TABLES, AND SWITCH BETWEEN THEM. THE FAST PAGING VERSION
//// OF THE CPU EMULATOR KEEPS ALL OF THE IMAGES COHERENT.
//if (fastpaging)
// UpdateFastPaging();
// IF FAST PAGING IS NOT ACTIVE THEN WE KEEP ONLY ONE MEMORY IMAGE AND
// WRITE TABLE, AND UPDATE THEM EVERY TIME PAGING IS CHANGED.
//else
UpdatePaging(0,0);
}
//// IF FAST PAGING IS ACTIVE, WE KEEP MULTIPLE COMPLETE MEMORY IMAGES
//// AND WRITE TABLES, AND SWITCH BETWEEN THEM. THE FAST PAGING VERSION
//// OF THE CPU EMULATOR KEEPS ALL OF THE IMAGES COHERENT.
//if (fastpaging)
// UpdateFastPaging();
if ((address <= 1) || ((address >= 0x54) && (address <= 0x57)))
return VideoSetMode(programcounter,address,write,value,nCyclesLeft);
// IF FAST PAGING IS NOT ACTIVE THEN WE KEEP ONLY ONE MEMORY IMAGE AND
// WRITE TABLE, AND UPDATE THEM EVERY TIME PAGING IS CHANGED.
//else
UpdatePaging(0,0);
}
if ((address <= 1) || ((address >= 0x54) && (address <= 0x57)))
return VideoSetMode(programcounter,address,write,value,nCyclesLeft);
return write ? 0 : MemReadFloatingBus(nCyclesLeft);
return write ? 0 : MemReadFloatingBus(nCyclesLeft);
}
//===========================================================================

7
source/Memory.h
View File

@ -15,8 +15,13 @@ enum
enum MemoryInitPattern_e
{
MIP_ZERO
, MIP_RANDOM
, MIP_FF_FF_00_00
, MIP_FF_00_FULL_PAGE
, MIP_00_FF_HALF_PAGE
, MIP_FF_00_HALF_PAGE
, MIP_PAGE_ADDRESS_LOW
, MIP_PAGE_ADDRESS_HIGH
, NUM_MIP
};
extern MemoryInitPattern_e g_eMemoryInitPattern;

1
source/Speaker.cpp
View File

@ -425,7 +425,6 @@ BYTE __stdcall SpkrToggle (WORD, WORD, BYTE, BYTE, ULONG nCyclesLeft)
//
needsprecision = cumulativecycles; // ?
if (extbench)
{