openMSX
RomRamFile.hh
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1 #ifndef ROMRAMFILE_HH
2 #define ROMRAMFILE_HH
3 
4 #include "MSXRom.hh"
5 #include "SRAM.hh"
6 
7 namespace openmsx {
8 
9 class MSXCPU;
10 
11 class RomRamFile final : public MSXRom
12 {
13 public:
14  RomRamFile(const DeviceConfig& config, Rom&& rom);
15 
16  void reset(EmuTime::param time) override;
17  [[nodiscard]] byte readMem(word address, EmuTime::param time) override;
18  [[nodiscard]] byte peekMem(word address, EmuTime::param time) const override;
19  [[nodiscard]] const byte* getReadCacheLine(word address) const override;
20  void writeMem(word address, byte value, EmuTime::param time) override;
21  [[nodiscard]] byte* getWriteCacheLine(word address) const override;
22 
23  template<typename Archive>
24  void serialize(Archive& ar, unsigned version);
25 
26 private:
27  std::unique_ptr<SRAM> sram;
28  MSXCPU& cpu;
29  byte shiftValue;
30 };
31 
32 } // namespace openmsx
33 
34 #endif
void reset(EmuTime::param time) override
This method is called on reset.
Definition: RomRamFile.cc:42
const byte * getReadCacheLine(word address) const override
Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for reading.
Definition: RomRamFile.cc:74
void serialize(Archive &ar, unsigned version)
Definition: RomRamFile.cc:105
byte * getWriteCacheLine(word address) const override
Test that the memory in the interval [start, start + CacheLine::SIZE) is cacheable for writing.
Definition: RomRamFile.cc:94
RomRamFile(const DeviceConfig &config, Rom &&rom)
Definition: RomRamFile.cc:34
byte readMem(word address, EmuTime::param time) override
Read a byte from a location at a certain time from this device.
Definition: RomRamFile.cc:47
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: RomRamFile.cc:86
byte peekMem(word address, EmuTime::param time) const override
Read a byte from a given memory location.
Definition: RomRamFile.cc:63
This file implemented 3 utility functions:
Definition: Autofire.cc:9
uint16_t word
16 bit unsigned integer
Definition: openmsx.hh:29