openMSX
MSXPac.hh
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1#ifndef MSXPAC_HH
2#define MSXPAC_HH
3
4#include "MSXDevice.hh"
5#include "SRAM.hh"
6
7namespace openmsx {
8
9class MSXPac final : public MSXDevice
10{
11public:
12 explicit MSXPac(const DeviceConfig& config);
13
14 void reset(EmuTime::param time) override;
15 [[nodiscard]] byte readMem(word address, EmuTime::param time) override;
16 void writeMem(word address, byte value, EmuTime::param time) override;
17 [[nodiscard]] const byte* getReadCacheLine(word address) const override;
18 [[nodiscard]] byte* getWriteCacheLine(word address) const override;
19
20 template<typename Archive>
21 void serialize(Archive& ar, unsigned version);
22
23private:
24 void checkSramEnable();
25
26private:
27 SRAM sram;
28 byte r1ffe, r1fff;
29 bool sramEnabled;
30};
31
32} // namespace openmsx
33
34#endif
An MSXDevice is an emulated hardware component connected to the bus of the emulated MSX.
Definition: MSXDevice.hh:33
void reset(EmuTime::param time) override
This method is called on reset.
Definition: MSXPac.cc:16
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.
Definition: MSXPac.cc:56
MSXPac(const DeviceConfig &config)
Definition: MSXPac.cc:9
void serialize(Archive &ar, unsigned version)
Definition: MSXPac.cc:98
byte * getWriteCacheLine(word address) const override
Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for writing.
Definition: MSXPac.cc:75
byte readMem(word address, EmuTime::param time) override
Read a byte from a location at a certain time from this device.
Definition: MSXPac.cc:22
const byte * getReadCacheLine(word address) const override
Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for reading.
Definition: MSXPac.cc:40
This file implemented 3 utility functions:
Definition: Autofire.cc:9
uint16_t word
16 bit unsigned integer
Definition: openmsx.hh:29