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 (int base, int size)
 
void add (MSXDevice &device, int base, int size)
 
void remove (MSXDevice &device, int base, int size)
 
bool empty () const
 
std::vector< MSXDevice * > getDevices () const
 
std::string getName () const override
 Returns a human-readable name for this device. More...
 
void getNameList (TclObject &result) const override
 Returns list of name(s) of this device. More...
 
byte readMem (word address, EmuTime::param time) override
 Read a byte from a location at a certain time from this device. More...
 
byte peekMem (word address, EmuTime::param time) const override
 Read a byte from a given memory location. More...
 
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. More...
 
const bytegetReadCacheLine (word start) const override
 Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for reading. More...
 
bytegetWriteCacheLine (word start) const override
 Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for writing. More...
 
- Public Member Functions inherited from openmsx::MSXMultiDevice
 MSXMultiDevice (const HardwareConfig &hwConf)
 
void reset (EmuTime::param time) override
 This method is called on reset. More...
 
void powerUp (EmuTime::param time) override
 This method is called when MSX is powered up. More...
 
void powerDown (EmuTime::param time) override
 This method is called when MSX is powered down. More...
 
- 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. More...
 
void testRemove (Devices alreadyRemoved) const
 Checks whether this device can be removed (no other device has a reference to it). More...
 
virtual byte readIRQVector ()
 Gets IRQ vector used in IM2. More...
 
void getDeviceInfo (TclObject &result) const
 Get device info. More...
 
void getVisibleMemRegion (unsigned &base, unsigned &size) const
 Returns the range where this device is visible in memory. More...
 
virtual byte readIO (word port, EmuTime::param time)
 Read a byte from an IO port at a certain time from this device. More...
 
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. More...
 
virtual byte peekIO (word port, EmuTime::param time) const
 Read a byte from a given IO port. More...
 
virtual void globalWrite (word address, byte value, EmuTime::param time)
 Global writes. More...
 
virtual void globalRead (word address, EmuTime::param time)
 Global reads. More...
 
void invalidateMemCache (word start, unsigned size)
 Invalidate CPU memory-mapping cache. More...
 
MSXMotherBoardgetMotherBoard () const
 Get the mother board this device belongs to. More...
 
const XMLElementgetDeviceConfig () const
 Get the configuration section for this device. More...
 
const DeviceConfiggetDeviceConfig2 () const
 
const DevicesgetReferences () const
 Get the device references that are specified for this device. More...
 
EmuTime::param getCurrentTime () const
 
MSXCPUgetCPU () const
 
MSXCPUInterfacegetCPUInterface () const
 
SchedulergetScheduler () const
 
CliCommgetCliComm () 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 byte unmappedRead [0x10000]
 
static byte unmappedWrite [0x10000]
 
- Protected Member Functions inherited from openmsx::MSXDevice
 MSXDevice (const DeviceConfig &config, const std::string &name)
 Every MSXDevice has a config entry; this constructor gets some device properties from that config entry. More...
 
 MSXDevice (const DeviceConfig &config)
 
virtual void init ()
 
virtual void getExtraDeviceInfo (TclObject &result) const
 

Detailed Description

Definition at line 9 of file MSXMultiMemDevice.hh.

Constructor & Destructor Documentation

◆ MSXMultiMemDevice()

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

Definition at line 28 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::getCPUInterface().

◆ ~MSXMultiMemDevice()

openmsx::MSXMultiMemDevice::~MSXMultiMemDevice ( )
override

Definition at line 35 of file MSXMultiMemDevice.cc.

References empty(), and detail::size().

Member Function Documentation

◆ add()

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

Definition at line 59 of file MSXMultiMemDevice.cc.

References begin(), and canAdd().

Referenced by openmsx::MSXCPUInterface::replace_IO_Out().

◆ canAdd()

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

Definition at line 52 of file MSXMultiMemDevice.cc.

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

Referenced by add().

◆ empty()

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

◆ getDevices()

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

Definition at line 70 of file MSXMultiMemDevice.cc.

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

Referenced by empty().

◆ getName()

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 76 of file MSXMultiMemDevice.cc.

References getNameList(), openmsx::TclObject::getString(), and string_view::str().

Referenced by empty().

◆ 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 82 of file MSXMultiMemDevice.cc.

References openmsx::TclObject::addListElement(), and UNREACHABLE.

Referenced by empty(), and 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 122 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::getReadCacheLine(), and unlikely.

Referenced by empty().

◆ 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 137 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::getWriteCacheLine(), and unlikely.

Referenced by empty().

◆ 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 112 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::peekMem().

Referenced by empty().

◆ 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 107 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::readMem().

Referenced by empty().

◆ remove()

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

Definition at line 65 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 117 of file MSXMultiMemDevice.cc.

References openmsx::MSXDevice::writeMem().

Referenced by empty().


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