openMSX
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openmsx::MSXMultiMemDevice Class Referencefinal

#include <MSXMultiMemDevice.hh>

Inheritance diagram for openmsx::MSXMultiMemDevice:
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Collaboration diagram for openmsx::MSXMultiMemDevice:
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Public Member Functions

 MSXMultiMemDevice (const HardwareConfig &hwConf)
 
 ~MSXMultiMemDevice () override
 
bool canAdd (unsigned base, unsigned size)
 
void add (MSXDevice &device, unsigned base, unsigned size)
 
void remove (MSXDevice &device, unsigned base, unsigned size)
 
bool empty () const
 
std::vector< MSXDevice * > getDevices () const
 
const std::string & getName () const override
 Returns a human-readable name for this device.
 
void getNameList (TclObject &result) const override
 Returns list of name(s) of this device.
 
byte readMem (word address, EmuTime::param time) override
 Read a byte from a location at a certain time from this device.
 
byte peekMem (word address, EmuTime::param time) const override
 Read a byte from a given memory location.
 
void writeMem (word address, byte value, EmuTime::param time) override
 Write a given byte to a given location at a certain time to this device.
 
const bytegetReadCacheLine (word start) const override
 Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for reading.
 
bytegetWriteCacheLine (word start) const override
 Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for writing.
 
- Public Member Functions inherited from openmsx::MSXMultiDevice
 MSXMultiDevice (const HardwareConfig &hwConf)
 
void reset (EmuTime::param time) override
 This method is called on reset.
 
void powerUp (EmuTime::param time) override
 This method is called when MSX is powered up.
 
void powerDown (EmuTime::param time) override
 This method is called when MSX is powered down.
 
- Public Member Functions inherited from openmsx::MSXDevice
 MSXDevice (const MSXDevice &)=delete
 
MSXDeviceoperator= (const MSXDevice &)=delete
 
virtual ~MSXDevice ()=0
 
const HardwareConfiggetHardwareConfig () const
 Returns the hardwareconfig this device belongs to.
 
void testRemove (std::span< const std::unique_ptr< MSXDevice > > removed) const
 Checks whether this device can be removed (no other device has a reference to it).
 
virtual byte readIRQVector ()
 Gets IRQ vector used in IM2.
 
void getDeviceInfo (TclObject &result) const
 Get device info.
 
void getVisibleMemRegion (unsigned &base, unsigned &size) const
 Returns the range where this device is visible in memory.
 
virtual byte readIO (word port, EmuTime::param time)
 Read a byte from an IO port at a certain time from this device.
 
virtual void writeIO (word port, byte value, EmuTime::param time)
 Write a byte to a given IO port at a certain time to this device.
 
virtual byte peekIO (word port, EmuTime::param time) const
 Read a byte from a given IO port.
 
virtual void globalWrite (word address, byte value, EmuTime::param time)
 Global writes.
 
virtual void globalRead (word address, EmuTime::param time)
 Global reads.
 
void invalidateDeviceRWCache ()
 Calls MSXCPUInterface::invalidateXXCache() for the specific (part of) the slot that this device is located in.
 
void invalidateDeviceRCache ()
 
void invalidateDeviceWCache ()
 
void invalidateDeviceRWCache (unsigned start, unsigned size)
 
void invalidateDeviceRCache (unsigned start, unsigned size)
 
void invalidateDeviceWCache (unsigned start, unsigned size)
 
void fillDeviceRWCache (unsigned start, unsigned size, byte *rwData)
 Calls MSXCPUInterface::fillXXCache() for the specific (part of) the slot that this device is located in.
 
void fillDeviceRWCache (unsigned start, unsigned size, const byte *rData, byte *wData)
 
void fillDeviceRCache (unsigned start, unsigned size, const byte *rData)
 
void fillDeviceWCache (unsigned start, unsigned size, byte *wData)
 
MSXMotherBoardgetMotherBoard () const
 Get the mother board this device belongs to.
 
const XMLElementgetDeviceConfig () const
 Get the configuration section for this device.
 
const DeviceConfiggetDeviceConfig2 () const
 
const DevicesgetReferences () const
 Get the device references that are specified for this device.
 
EmuTime::param getCurrentTime () const
 
MSXCPUgetCPU () const
 
MSXCPUInterfacegetCPUInterface () const
 
SchedulergetScheduler () const
 
MSXCliCommgetCliComm () const
 
ReactorgetReactor () const
 
CommandControllergetCommandController () const
 
PluggingControllergetPluggingController () const
 
LedStatusgetLedStatus () const
 
template<typename Archive >
void serialize (Archive &ar, unsigned version)
 

Additional Inherited Members

- Public Types inherited from openmsx::MSXDevice
using Devices = std::vector< MSXDevice * >
 
- Static Public Attributes inherited from openmsx::MSXDevice
static std::array< byte, 0x10000 > unmappedRead
 
static std::array< byte, 0x10000 > unmappedWrite
 
- Protected Member Functions inherited from openmsx::MSXDevice
 MSXDevice (const DeviceConfig &config, std::string_view name)
 Every MSXDevice has a config entry; this constructor gets some device properties from that config entry.
 
 MSXDevice (const DeviceConfig &config)
 
virtual void init ()
 
virtual unsigned getBaseSizeAlignment () const
 The 'base' and 'size' attribute values need to be at least aligned to CacheLine::SIZE.
 
virtual bool allowUnaligned () const
 By default we don't allow unaligned <mem> specifications in the config file.
 
virtual void getExtraDeviceInfo (TclObject &result) const
 
byte getPrimarySlot () const
 
- Protected Attributes inherited from openmsx::MSXDevice
std::string deviceName
 

Detailed Description

Definition at line 9 of file MSXMultiMemDevice.hh.

Constructor & Destructor Documentation

◆ MSXMultiMemDevice()

openmsx::MSXMultiMemDevice::MSXMultiMemDevice ( const HardwareConfig hwConf)
explicit

Definition at line 19 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::getCPUInterface().

◆ ~MSXMultiMemDevice()

openmsx::MSXMultiMemDevice::~MSXMultiMemDevice ( )
override

Definition at line 26 of file MSXMultiMemDevice.cc.

References empty().

Member Function Documentation

◆ add()

void openmsx::MSXMultiMemDevice::add ( MSXDevice device,
unsigned  base,
unsigned  size 
)

Definition at line 50 of file MSXMultiMemDevice.cc.

References begin(), and canAdd().

◆ canAdd()

bool openmsx::MSXMultiMemDevice::canAdd ( unsigned  base,
unsigned  size 
)

Definition at line 43 of file MSXMultiMemDevice.cc.

References view::drop_back(), and ranges::none_of().

Referenced by add().

◆ empty()

bool openmsx::MSXMultiMemDevice::empty ( ) const
inline

Definition at line 18 of file MSXMultiMemDevice.hh.

Referenced by ~MSXMultiMemDevice().

◆ getDevices()

std::vector< MSXDevice * > openmsx::MSXMultiMemDevice::getDevices ( ) const

Definition at line 61 of file MSXMultiMemDevice.cc.

References view::drop_back(), to_vector(), and view::transform().

◆ getName()

const std::string & openmsx::MSXMultiMemDevice::getName ( ) const
overridevirtual

Returns a human-readable name for this device.

Default implementation is normally ok.

Reimplemented from openmsx::MSXDevice.

Definition at line 67 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::deviceName, getNameList(), and openmsx::TclObject::getString().

◆ getNameList()

void openmsx::MSXMultiMemDevice::getNameList ( TclObject result) const
overridevirtual

Returns list of name(s) of this device.

This is normally the same as getName() (but formatted as a Tcl list) except for multi-{mem,io}-devices.

Reimplemented from openmsx::MSXDevice.

Definition at line 74 of file MSXMultiMemDevice.cc.

References openmsx::TclObject::addListElement().

Referenced by getName().

◆ getReadCacheLine()

const byte * openmsx::MSXMultiMemDevice::getReadCacheLine ( word  start) const
overridevirtual

Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for reading.

If it is, a pointer to a buffer containing this interval must be returned. If not, a null pointer must be returned. Cacheable for reading means the data may be read directly from the buffer, thus bypassing the readMem() method, and thus also ignoring EmuTime. The default implementation always returns a null pointer. The start of the interval is CacheLine::SIZE aligned.

Reimplemented from openmsx::MSXDevice.

Definition at line 111 of file MSXMultiMemDevice.cc.

References openmsx::CacheLine::HIGH.

◆ getWriteCacheLine()

byte * openmsx::MSXMultiMemDevice::getWriteCacheLine ( word  start) const
overridevirtual

Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for writing.

If it is, a pointer to a buffer containing this interval must be returned. If not, a null pointer must be returned. Cacheable for writing means the data may be written directly to the buffer, thus bypassing the writeMem() method, and thus also ignoring EmuTime. The default implementation always returns a null pointer. The start of the interval is CacheLine::SIZE aligned.

Reimplemented from openmsx::MSXDevice.

Definition at line 126 of file MSXMultiMemDevice.cc.

References openmsx::CacheLine::HIGH.

◆ peekMem()

byte openmsx::MSXMultiMemDevice::peekMem ( word  address,
EmuTime::param  time 
) const
overridevirtual

Read a byte from a given memory location.

Reading memory via this method has no side effects (doesn't change the device status). If save reading is not possible this method returns 0xFF. This method is not used by the emulation. It can however be used by a debugger. The default implementation uses the cache mechanism (getReadCacheLine() method). If a certain region is not cacheable you cannot read it by default, Override this method if you want to improve this behaviour.

Reimplemented from openmsx::MSXDevice.

Definition at line 101 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::peekMem().

◆ readMem()

byte openmsx::MSXMultiMemDevice::readMem ( word  address,
EmuTime::param  time 
)
overridevirtual

Read a byte from a location at a certain time from this device.

The default implementation returns 255.

Reimplemented from openmsx::MSXDevice.

Definition at line 96 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::readMem().

◆ remove()

void openmsx::MSXMultiMemDevice::remove ( MSXDevice device,
unsigned  base,
unsigned  size 
)

Definition at line 56 of file MSXMultiMemDevice.cc.

References rfind_unguarded().

◆ writeMem()

void openmsx::MSXMultiMemDevice::writeMem ( word  address,
byte  value,
EmuTime::param  time 
)
overridevirtual

Write a given byte to a given location at a certain time to this device.

The default implementation ignores the write (does nothing).

Reimplemented from openmsx::MSXDevice.

Definition at line 106 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::writeMem().


The documentation for this class was generated from the following files: