void ConsoleLogFrame::OnToggleSource( wxCommandEvent& evt )
{
evt.Skip();
if (!GetMenuBar()) return;
if (evt.GetId() == MenuId_LogSource_Devel)
{
if( wxMenuItem* item = GetMenuBar()->FindItem(evt.GetId()) )
DevConWriterEnabled = item->IsChecked();
return;
}
uint srcid = evt.GetId() - MenuId_LogSource_Start;
if (!pxAssertDev( ArraySize(ConLogSources) > srcid, "Invalid source log index (out of bounds)" )) return;
if (!pxAssertDev( ConLogSources[srcid] != NULL, "Invalid source log index (NULL pointer [separator])" )) return;
if( wxMenuItem* item = GetMenuBar()->FindItem(evt.GetId()) )
{
pxAssertDev( item->IsCheckable(), "Uncheckable log source menu item? Seems fishy!" );
ConLogSources[srcid]->Enabled = item->IsChecked();
}
}
// ------------------------------------------------------------------------
// Writes a jump at the current x86Ptr, which targets a pre-established target address.
// (usually a backwards jump)
//
// slideForward - used internally by xSmartJump to indicate that the jump target is going
// to slide forward in the event of an 8 bit displacement.
//
__emitinline void xJccKnownTarget(JccComparisonType comparison, const void *target, bool slideForward)
{
// Calculate the potential j8 displacement first, assuming an instruction length of 2:
sptr displacement8 = (sptr)target - (sptr)(xGetPtr() + 2);
const int slideVal = slideForward ? ((comparison == Jcc_Unconditional) ? 3 : 4) : 0;
displacement8 -= slideVal;
if (slideForward) {
pxAssertDev(displacement8 >= 0, "Used slideForward on a backward jump; nothing to slide!");
}
if (is_s8(displacement8))
xJcc8(comparison, displacement8);
else {
// Perform a 32 bit jump instead. :(
s32 *bah = xJcc32(comparison);
sptr distance = (sptr)target - (sptr)xGetPtr();
#ifdef __x86_64__
// This assert won't physically happen on x86 targets
pxAssertDev(distance >= -0x80000000LL && distance < 0x80000000LL, "Jump target is too far away, needs an indirect register");
#endif
*bah = (s32)distance;
}
}
void xForwardJumpBase::_setTarget(uint opsize) const
{
pxAssertDev(BasePtr != NULL, "");
sptr displacement = (sptr)xGetPtr() - (sptr)BasePtr;
if (opsize == 1) {
pxAssertDev(is_s8(displacement), "Emitter Error: Invalid short jump displacement.");
BasePtr[-1] = (s8)displacement;
} else {
// full displacement, no sanity checks needed :D
((s32 *)BasePtr)[-1] = displacement;
}
}
void __fastcall WriteFIFO_VIF1(const mem128_t *value)
{
VIF_LOG("WriteFIFO/VIF1 <- %ls", value->ToString().c_str());
if (vif1Regs.stat.FDR)
DevCon.Warning("writing to fifo when fdr is set!");
if (vif1Regs.stat.test(VIF1_STAT_INT | VIF1_STAT_VSS | VIF1_STAT_VIS | VIF1_STAT_VFS) )
DevCon.Warning("writing to vif1 fifo when stalled");
vif1ch.qwc += 1;
if(vif1.irqoffset != 0 && vif1.vifstalled == true) DevCon.Warning("Offset on VIF1 FIFO start!");
bool ret = VIF1transfer((u32*)value, 4);
if(GSTransferStatus.PTH2 == STOPPED_MODE && gifRegs.stat.APATH == GIF_APATH2)
{
if(gifRegs.stat.DIR == 0)gifRegs.stat.OPH = false;
gifRegs.stat.APATH = GIF_APATH_IDLE;
if(gifRegs.stat.P1Q) gsPath1Interrupt();
}
if (vif1.cmd)
{
if(vif1.done == true && vif1ch.qwc == 0) vif1Regs.stat.VPS = VPS_WAITING;
}
else
{
vif1Regs.stat.VPS = VPS_IDLE;
}
pxAssertDev( ret, "vif stall code not implemented" );
}
VirtualMemoryReserve& VirtualMemoryReserve::SetBaseAddr( uptr newaddr )
{
if (!pxAssertDev(!m_pages_reserved, "Invalid object state: you must release the virtual memory reserve prior to changing its base address!")) return *this;
m_baseptr = (void*)newaddr;
return *this;
}
void __fastcall WriteFIFO_VIF1(const mem128_t *value)
{
VIF_LOG("WriteFIFO/VIF1 <- %ls", value->ToString().c_str());
if (vif1Regs.stat.FDR) {
DevCon.Warning("writing to fifo when fdr is set!");
}
if (vif1Regs.stat.test(VIF1_STAT_INT | VIF1_STAT_VSS | VIF1_STAT_VIS | VIF1_STAT_VFS) ) {
DevCon.Warning("writing to vif1 fifo when stalled");
}
if (vif1.irqoffset.value != 0 && vif1.vifstalled.enabled == true) {
DevCon.Warning("Offset on VIF1 FIFO start!");
}
vif1ch.qwc += 1;
bool ret = VIF1transfer((u32*)value, 4);
if (vif1.cmd) {
if (vif1.done && !vif1ch.qwc) vif1Regs.stat.VPS = VPS_WAITING;
}
else vif1Regs.stat.VPS = VPS_IDLE;
if( gifRegs.stat.APATH == 2 && gifUnit.gifPath[1].isDone())
{
gifRegs.stat.APATH = 0;
gifRegs.stat.OPH = 0;
vif1Regs.stat.VGW = false; //Let vif continue if it's stuck on a flush
if(gifUnit.checkPaths(1,0,1)) gifUnit.Execute(false, true);
}
pxAssertDev( ret, "vif stall code not implemented" );
}
void MemProtect( void* baseaddr, size_t size, PageProtectionMode mode, bool allowExecution )
{
pxAssertDev( ((size & (__pagesize-1)) == 0), wxsFormat(
L"Memory block size must be a multiple of the target platform's page size.\n"
L"\tPage Size: 0x%04x (%d), Block Size: 0x%04x (%d)",
__pagesize, __pagesize, size, size )
);
DWORD winmode = 0;
switch( mode )
{
case Protect_NoAccess:
winmode = ( allowExecution ) ? PAGE_EXECUTE : PAGE_NOACCESS;
break;
case Protect_ReadOnly:
winmode = ( allowExecution ) ? PAGE_EXECUTE_READ : PAGE_READONLY;
break;
case Protect_ReadWrite:
winmode = ( allowExecution ) ? PAGE_EXECUTE_READWRITE : PAGE_READWRITE;
break;
}
DWORD OldProtect; // enjoy my uselessness, yo!
VirtualProtect( baseaddr, size, winmode, &OldProtect );
}
void isoFile::ReadBlock(u8* dst, uint lsn)
{
if (lsn > m_blocks)
{
FastFormatUnicode msg;
msg.Write("isoFile error: Block index is past the end of file! (%u > %u).", lsn, m_blocks);
pxAssertDev(false, msg);
Console.Error(msg);
// [TODO] : Throw exception?
// Typically an error like this is bad; indicating an invalid dump or corrupted
// iso file.
return;
}
if (m_flags == ISOFLAGS_BLOCKDUMP_V2)
_ReadBlockD(dst, lsn);
else
_ReadBlock(dst, lsn);
if (m_type == ISOTYPE_CD)
{
lsn_to_msf(dst + 12, lsn);
dst[15] = 2;
}
}
// Returns:
// The previous suspension state; true if the thread was running or false if it was
// closed, not running, or paused.
//
void SysThreadBase::Pause()
{
if( IsSelf() || !IsRunning() ) return;
// shortcut ExecMode check to avoid deadlocking on redundant calls to Suspend issued
// from Resume or OnResumeReady code.
if( (m_ExecMode == ExecMode_Closed) || (m_ExecMode == ExecMode_Paused) ) return;
{
ScopedLock locker( m_ExecModeMutex );
// Check again -- status could have changed since above.
if( (m_ExecMode == ExecMode_Closed) || (m_ExecMode == ExecMode_Paused) ) return;
if( m_ExecMode == ExecMode_Opened )
m_ExecMode = ExecMode_Pausing;
pxAssertDev( m_ExecMode == ExecMode_Pausing, "ExecMode should be nothing other than Pausing..." );
OnPause();
m_sem_event.Post();
}
m_RunningLock.Wait();
}
void __fastcall WriteFIFO_VIF1(const mem128_t *value)
{
VIF_LOG("WriteFIFO/VIF1 <- %ls", value->ToString().c_str());
if (vif1Regs.stat.FDR) {
DevCon.Warning("writing to fifo when fdr is set!");
}
if (vif1Regs.stat.test(VIF1_STAT_INT | VIF1_STAT_VSS | VIF1_STAT_VIS | VIF1_STAT_VFS) ) {
DevCon.Warning("writing to vif1 fifo when stalled");
}
if (vif1.irqoffset != 0 && vif1.vifstalled == true) {
DevCon.Warning("Offset on VIF1 FIFO start!");
}
vif1ch.qwc += 1;
bool ret = VIF1transfer((u32*)value, 4);
if (vif1.cmd) {
if (vif1.done && !vif1ch.qwc) vif1Regs.stat.VPS = VPS_WAITING;
}
else vif1Regs.stat.VPS = VPS_IDLE;
pxAssertDev( ret, "vif stall code not implemented" );
}
xAddressVoid& xAddressVoid::Add( const xAddressReg& src )
{
if( src == Index )
{
Factor++;
}
else if( src == Base )
{
// Compound the existing register reference into the Index/Scale pair.
Base = xEmptyReg;
if( src == Index )
Factor++;
else
{
pxAssertDev( Index.IsEmpty(), "x86Emitter: Only one scaled index register is allowed in an address modifier." );
Index = src;
Factor = 2;
}
}
else if( Base.IsEmpty() )
Base = src;
else if( Index.IsEmpty() )
Index = src;
else
pxAssumeDev( false, L"x86Emitter: address modifiers cannot have more than two index registers." ); // oops, only 2 regs allowed per ModRm!
return *this;
}
void SysExecEvent_CoreThreadPause::InvokeEvent()
{
#ifdef PCSX2_DEVBUILD
bool CorePluginsAreOpen = GetCorePlugins().AreOpen();
ScopedCoreThreadPause paused_core;
_post_and_wait(paused_core);
// All plugins should be initialized and opened upon resuming from
// a paused state. If the thread that puased us changed plugin status, it should
// have used Close instead.
if( CorePluginsAreOpen )
{
CorePluginsAreOpen = GetCorePlugins().AreOpen();
pxAssertDev( CorePluginsAreOpen, "Invalid plugin close/shutdown detected during paused CoreThread; please Stop/Suspend the core instead." );
}
paused_core.AllowResume();
#else
ScopedCoreThreadPause paused_core;
_post_and_wait(paused_core);
paused_core.AllowResume();
#endif
}
void SysCoreThread::UploadStateCopy( const VmStateBuffer& copy )
{
if( !pxAssertDev( IsPaused(), "CoreThread is not paused; new VM state cannot be uploaded." ) ) return;
memLoadingState loadme( copy );
loadme.FreezeAll();
m_resetVirtualMachine = false;
}
// Suspends emulation and closes the emulation state (including plugins) at the next PS2 vsync,
// and returns control to the calling thread; or does nothing if the core is already suspended.
//
// Parameters:
// isNonblocking - if set to true then the function will not block for emulation suspension.
// Defaults to false if parameter is not specified. Performing non-blocking suspension
// is mostly useful for starting certain non-Emu related gui activities (improves gui
// responsiveness).
//
// Returns:
// The previous suspension state; true if the thread was running or false if it was
// suspended.
//
// Exceptions:
// CancelEvent - thrown if the thread is already in a Paused or Closing state. Because
// actions that pause emulation typically rely on plugins remaining loaded/active,
// Suspension must cancel itself forcefully or risk crashing whatever other action is
// in progress.
//
void SysThreadBase::Suspend( bool isBlocking )
{
if (!pxAssertDev(!IsSelf(),"Suspend/Resume are not allowed from this thread.")) return;
if (!IsRunning()) return;
// shortcut ExecMode check to avoid deadlocking on redundant calls to Suspend issued
// from Resume or OnResumeReady code.
if( m_ExecMode == ExecMode_Closed ) return;
{
ScopedLock locker( m_ExecModeMutex );
switch( m_ExecMode )
{
// FIXME what to do for this case
// case ExecMode_NoThreadYet:
// Check again -- status could have changed since above.
case ExecMode_Closed: return;
case ExecMode_Pausing:
case ExecMode_Paused:
if( !isBlocking )
throw Exception::CancelEvent( L"Cannot suspend in non-blocking fashion: Another thread is pausing the VM state." );
m_ExecMode = ExecMode_Closing;
m_sem_Resume.Post();
m_sem_ChangingExecMode.Wait();
break;
case ExecMode_Opened:
m_ExecMode = ExecMode_Closing;
break;
case ExecMode_Closing:
break;
}
pxAssertDev( m_ExecMode == ExecMode_Closing, "ExecMode should be nothing other than Closing..." );
m_sem_event.Post();
}
if( isBlocking )
m_RunningLock.Wait();
}
// Sets the block size via pages (pages are defined by the __pagesize global, which is
// typically 4096).
//
// This method must be called prior to accessing or modifying the array contents. Calls to
// a modified buffer will be ignored (and generate an assertion in dev/debug modes).
SpatialArrayReserve& SpatialArrayReserve::SetBlockSizeInPages( uint pages )
{
if (pxAssertDev(!m_pages_commited, "Invalid object state: Block size can only be changed prior to accessing or modifying the reserved buffer contents."))
{
m_blocksize = pages;
m_numblocks = (m_pages_reserved + m_blocksize - 1) / m_blocksize;
m_blockbits.Alloc( _calcBlockBitArrayLength() );
}
return *this;
}
void Threading::pxThread::_platform_specific_OnStartInThread()
{
// OpenThread Note: Vista and Win7 need only THREAD_QUERY_LIMITED_INFORMATION (XP and 2k need more),
// however we own our process threads, so shouldn't matter in any case...
m_native_id = (uptr)GetCurrentThreadId();
m_native_handle = (uptr)OpenThread( THREAD_QUERY_INFORMATION, false, (DWORD)m_native_id );
pxAssertDev( m_native_handle, wxNullChar );
}
void EmitSibMagic( uint regfield, const void* address )
{
ModRM( 0, regfield, ModRm_UseDisp32 );
// SIB encoding only supports 32bit offsets, even on x86_64
// We must make sure that the displacement is within the 32bit range
// Else we will fail out in a spectacular fashion
sptr displacement = (sptr)address;
pxAssertDev(displacement >= -0x80000000LL && displacement < 0x80000000LL, "SIB target is too far away, needs an indirect register");
xWrite<s32>( (s32)displacement );
}
void SysThreadBase::OnStart()
{
if( !pxAssertDev( m_ExecMode == ExecMode_NoThreadYet, "SysSustainableThread:Start(): Invalid execution mode" ) ) return;
m_sem_Resume.Reset();
m_sem_ChangingExecMode.Reset();
FrankenMutex( m_ExecModeMutex );
FrankenMutex( m_RunningLock );
_parent::OnStart();
}
//////////////////////////////////////////////////////////////////////////////////////////
// Conditionally generates Sib encoding information!
//
// regfield - register field to be written to the ModRm. This is either a register specifier
// or an opcode extension. In either case, the instruction determines the value for us.
//
void EmitSibMagic(uint regfield, const xIndirectVoid &info)
{
// 3 bits also on x86_64 (so max is 8)
// We might need to mask it on x86_64
pxAssertDev(regfield < 8, "Invalid x86 register identifier.");
int displacement_size = (info.Displacement == 0) ? 0 :
((info.IsByteSizeDisp()) ? 1 : 2);
pxAssert(!info.Base.IsEmpty() || !info.Index.IsEmpty() || displacement_size == 2);
if (!NeedsSibMagic(info)) {
// Use ModRm-only encoding, with the rm field holding an index/base register, if
// one has been specified. If neither register is specified then use Disp32 form,
// which is encoded as "EBP w/o displacement" (which is why EBP must always be
// encoded *with* a displacement of 0, if it would otherwise not have one).
if (info.Index.IsEmpty()) {
EmitSibMagic(regfield, (void *)info.Displacement);
return;
} else {
if (info.Index == ebp && displacement_size == 0)
displacement_size = 1; // forces [ebp] to be encoded as [ebp+0]!
ModRM(displacement_size, regfield, info.Index.Id);
}
} else {
// In order to encode "just" index*scale (and no base), we have to encode
// it as a special [index*scale + displacement] form, which is done by
// specifying EBP as the base register and setting the displacement field
// to zero. (same as ModRm w/o SIB form above, basically, except the
// ModRm_UseDisp flag is specified in the SIB instead of the ModRM field).
if (info.Base.IsEmpty()) {
ModRM(0, regfield, ModRm_UseSib);
SibSB(info.Scale, info.Index.Id, ModRm_UseDisp32);
xWrite<s32>(info.Displacement);
return;
} else {
if (info.Base == ebp && displacement_size == 0)
displacement_size = 1; // forces [ebp] to be encoded as [ebp+0]!
ModRM(displacement_size, regfield, ModRm_UseSib);
SibSB(info.Scale, info.Index.Id, info.Base.Id);
}
}
if (displacement_size != 0) {
if (displacement_size == 1)
xWrite<s8>(info.Displacement);
else
xWrite<s32>(info.Displacement);
}
}
// Applies a full suite of new settings, which will automatically facilitate the necessary
// resets of the core and components (including plugins, if needed). The scope of resetting
// is determined by comparing the current settings against the new settings, so that only
// real differences are applied.
void SysCoreThread::ApplySettings( const Pcsx2Config& src )
{
if( src == EmuConfig ) return;
if( !pxAssertDev( IsPaused(), "CoreThread is not paused; settings cannot be applied." ) ) return;
m_resetRecompilers = ( src.Cpu != EmuConfig.Cpu ) || ( src.Gamefixes != EmuConfig.Gamefixes ) || ( src.Speedhacks != EmuConfig.Speedhacks );
m_resetProfilers = ( src.Profiler != EmuConfig.Profiler );
m_resetVsyncTimers = ( src.GS != EmuConfig.GS );
const_cast<Pcsx2Config&>(EmuConfig) = src;
}
void SysThreadBase::Start()
{
_parent::Start();
Sleep( 1 );
pxAssertDev( (m_ExecMode == ExecMode_Closing) || (m_ExecMode == ExecMode_Closed),
"Unexpected thread status during SysThread startup."
);
m_sem_event.Post();
}
static __ri void PageSizeAssertionTest( size_t size )
{
pxAssertMsg( (__pagesize == getpagesize()), pxsFmt(
"Internal system error: Operating system pagesize does not match compiled pagesize.\n\t"
L"\tOS Page Size: 0x%x (%d), Compiled Page Size: 0x%x (%u)",
getpagesize(), getpagesize(), __pagesize, __pagesize )
);
pxAssertDev( (size & (__pagesize-1)) == 0, pxsFmt(
L"Memory block size must be a multiple of the target platform's page size.\n"
L"\tPage Size: 0x%x (%u), Block Size: 0x%x (%u)",
__pagesize, __pagesize, size, size )
);
}
int InputIsoFile::ReadSync(u8* dst, uint lsn)
{
if (lsn > m_blocks)
{
FastFormatUnicode msg;
msg.Write("isoFile error: Block index is past the end of file! (%u > %u).", lsn, m_blocks);
pxAssertDev(false, msg);
Console.Error(msg.c_str());
return -1;
}
return m_reader->ReadSync(dst+m_blockofs, lsn, 1);
}
// Resumes the core execution state, or does nothing is the core is already running. If
// settings were changed, resets will be performed as needed and emulation state resumed from
// memory savestates.
//
// Note that this is considered a non-blocking action. Most times the state is safely resumed
// on return, but in the case of re-entrant or nested message handling the function may return
// before the thread has resumed. If you need explicit behavior tied to the completion of the
// Resume, you'll need to bind callbacks to either OnResumeReady or OnResumeInThread.
//
// Exceptions:
// PluginInitError - thrown if a plugin fails init (init is performed on the current thread
// on the first time the thread is resumed from it's initial idle state)
// ThreadCreationError - Insufficient system resources to create thread.
//
void SysThreadBase::Resume()
{
if( IsSelf() ) return;
if( m_ExecMode == ExecMode_Opened ) return;
ScopedLock locker( m_ExecModeMutex );
// Implementation Note:
// The entire state coming out of a Wait is indeterminate because of user input
// and pending messages being handled. So after each call we do some seemingly redundant
// sanity checks against m_ExecMode/m_Running status, and if something doesn't feel
// right, we should abort; the user may have canceled the action before it even finished.
switch( m_ExecMode )
{
case ExecMode_Opened: return;
case ExecMode_NoThreadYet:
{
Start();
if( !m_running || (m_ExecMode == ExecMode_NoThreadYet) )
throw Exception::ThreadCreationError(this);
if( m_ExecMode == ExecMode_Opened ) return;
}
// fall through...
case ExecMode_Closing:
case ExecMode_Pausing:
// we need to make sure and wait for the emuThread to enter a fully suspended
// state before continuing...
m_RunningLock.Wait();
if( !m_running ) return;
if( (m_ExecMode != ExecMode_Closed) && (m_ExecMode != ExecMode_Paused) ) return;
if( !GetCorePlugins().AreLoaded() ) return;
break;
case ExecMode_Paused:
case ExecMode_Closed:
break;
}
pxAssertDev( (m_ExecMode == ExecMode_Closed) || (m_ExecMode == ExecMode_Paused),
"SysThreadBase is not in a closed/paused state? wtf!" );
OnResumeReady();
m_ExecMode = ExecMode_Opened;
m_sem_Resume.Post();
}
// Notes:
// * This method should be called if the object is already in an released (unreserved) state.
// Subsequent calls will be ignored, and the existing reserve will be returned.
//
// Parameters:
// size - size of the reserve, in bytes. (optional)
// If not specified (or zero), then the default size specified in the constructor for the
// object instance is used.
//
// upper_bounds - criteria that must be met for the allocation to be valid.
// If the OS refuses to allocate the memory below the specified address, the
// object will fail to initialize and an exception will be thrown.
void* VirtualMemoryReserve::Reserve( size_t size, uptr base, uptr upper_bounds )
{
if (!pxAssertDev( m_baseptr == NULL, "(VirtualMemoryReserve) Invalid object state; object has already been reserved." ))
return m_baseptr;
if (!size) size = m_defsize;
if (!size) return NULL;
m_pages_reserved = (size + __pagesize-4) / __pagesize;
uptr reserved_bytes = m_pages_reserved * __pagesize;
m_baseptr = (void*)HostSys::MmapReserve(base, reserved_bytes);
if (!m_baseptr || (upper_bounds != 0 && (((uptr)m_baseptr + reserved_bytes) > upper_bounds)))
{
DevCon.Warning( L"%s: host memory @ %s -> %s is unavailable; attempting to map elsewhere...",
m_name.c_str(), pxsPtr(base), pxsPtr(base + size) );
SafeSysMunmap(m_baseptr, reserved_bytes);
if (base)
{
// Let's try again at an OS-picked memory area, and then hope it meets needed
// boundschecking criteria below.
m_baseptr = HostSys::MmapReserve( 0, reserved_bytes );
}
}
if ((upper_bounds != 0) && (((uptr)m_baseptr + reserved_bytes) > upper_bounds))
{
SafeSysMunmap(m_baseptr, reserved_bytes);
// returns null, caller should throw an exception or handle appropriately.
}
if (!m_baseptr) return NULL;
FastFormatUnicode mbkb;
uint mbytes = reserved_bytes / _1mb;
if (mbytes)
mbkb.Write( "[%umb]", mbytes );
else
mbkb.Write( "[%ukb]", reserved_bytes / 1024 );
DevCon.WriteLn( Color_Gray, L"%-32s @ %s -> %s %s", m_name.c_str(),
pxsPtr(m_baseptr), pxsPtr((uptr)m_baseptr+reserved_bytes), mbkb.c_str());
return m_baseptr;
}
//////////////////////////////////////////////////////////////////////////
// WriteFIFO Pages
//
void __fastcall WriteFIFO_VIF0(const mem128_t *value)
{
VIF_LOG("WriteFIFO/VIF0 <- %ls", value->ToString().c_str());
vif0ch.qwc += 1;
if(vif0.irqoffset.value != 0 && vif0.vifstalled.enabled == true) DevCon.Warning("Offset on VIF0 FIFO start!");
bool ret = VIF0transfer((u32*)value, 4);
if (vif0.cmd)
{
if(vif0.done && vif0ch.qwc == 0) vif0Regs.stat.VPS = VPS_WAITING;
}
else
{
vif0Regs.stat.VPS = VPS_IDLE;
}
pxAssertDev( ret, "vif stall code not implemented" );
}
void Threading::Mutex::Detach()
{
if( EBUSY != pthread_mutex_destroy(&m_mutex) ) return;
if( IsRecursive() )
{
// Sanity check: Recursive locks could be held by our own thread, which would
// be considered an assertion failure, but can also be handled gracefully.
// (note: if the mutex is locked recursively more than twice then this assert won't
// detect it)
Release(); Release(); // in case of double recursion.
int result = pthread_mutex_destroy( &m_mutex );
if( pxAssertDev( result != EBUSY, "Detachment of a recursively-locked mutex (self-locked!)." ) ) return;
}
if( Wait(def_detach_timeout) )
pthread_mutex_destroy( &m_mutex );
else
Console.Error( "(Thread Log) Mutex cleanup failed due to possible deadlock.");
}
void InputIsoFile::BeginRead2(uint lsn)
{
if (lsn > m_blocks)
{
FastFormatUnicode msg;
msg.Write("isoFile error: Block index is past the end of file! (%u > %u).", lsn, m_blocks);
pxAssertDev(false, msg);
Console.Error(msg.c_str());
// [TODO] : Throw exception?
// Typically an error like this is bad; indicating an invalid dump or corrupted
// iso file.
m_current_lsn = -1;
return;
}
m_current_lsn = lsn;
if(lsn >= m_read_lsn && lsn < (m_read_lsn+m_read_count))
{
// Already buffered
return;
}
m_read_lsn = lsn;
m_read_count = 1;
if(ReadUnit > 1)
{
//m_read_lsn = lsn - (lsn % ReadUnit);
m_read_count = std::min(ReadUnit, m_blocks - m_read_lsn);
}
m_reader->BeginRead(m_readbuffer, m_read_lsn, m_read_count);
m_read_inprogress = true;
}
xForwardJumpBase::xForwardJumpBase(uint opsize, JccComparisonType cctype)
{
pxAssert(opsize == 1 || opsize == 4);
pxAssertDev(cctype != Jcc_Unknown, "Invalid ForwardJump conditional type.");
BasePtr = (s8 *)xGetPtr() +
((opsize == 1) ? 2 : // j8's are always 2 bytes.
((cctype == Jcc_Unconditional) ? 5 : 6)); // j32's are either 5 or 6 bytes
if (opsize == 1)
xWrite8((cctype == Jcc_Unconditional) ? 0xeb : (0x70 | cctype));
else {
if (cctype == Jcc_Unconditional)
xWrite8(0xe9);
else {
xWrite8(0x0f);
xWrite8(0x80 | cctype);
}
}
xAdvancePtr(opsize);
}
// ------------------------------------------------------------------------
// Writes a jump at the current x86Ptr, which targets a pre-established target address.
// (usually a backwards jump)
//
// slideForward - used internally by xSmartJump to indicate that the jump target is going
// to slide forward in the event of an 8 bit displacement.
//
__emitinline void xJccKnownTarget( JccComparisonType comparison, const void* target, bool slideForward )
{
// Calculate the potential j8 displacement first, assuming an instruction length of 2:
sptr displacement8 = (sptr)target - (sptr)(xGetPtr() + 2);
const int slideVal = slideForward ? ((comparison == Jcc_Unconditional) ? 3 : 4) : 0;
displacement8 -= slideVal;
if( slideForward )
{
pxAssertDev( displacement8 >= 0, "Used slideForward on a backward jump; nothing to slide!" );
}
if( is_s8( displacement8 ) )
xJcc8( comparison, displacement8 );
else
{
// Perform a 32 bit jump instead. :(
s32* bah = xJcc32( comparison );
*bah = (s32)target - (s32)xGetPtr();
}
}