// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_EMU_EMUMEM_HEM_H
#define MAME_EMU_EMUMEM_HEM_H
#pragma once
// handler_entry_read_memory/handler_entry_write_memory
// Accesses fixed memory (non-banked rom or ram)
template<int Width, int AddrShift> class handler_entry_read_memory : public handler_entry_read_address<Width, AddrShift>
{
public:
using uX = typename emu::detail::handler_entry_size<Width>::uX;
handler_entry_read_memory(address_space *space, void *base) : handler_entry_read_address<Width, AddrShift>(space, 0), m_base(reinterpret_cast<uX *>(base)) {}
~handler_entry_read_memory() = default;
uX read(offs_t offset, uX mem_mask) const override;
void *get_ptr(offs_t offset) const override;
std::string name() const override;
private:
uX *m_base;
};
template<int Width, int AddrShift> class handler_entry_write_memory : public handler_entry_write_address<Width, AddrShift>
{
public:
using uX = typename emu::detail::handler_entry_size<Width>::uX;
handler_entry_write_memory(address_space *space, void *base) : handler_entry_write_address<Width, AddrShift>(space, 0), m_base(reinterpret_cast<uX *>(base)) {}
~handler_entry_write_memory() = default;
void write(offs_t offset, uX data, uX mem_mask) const override;
void *get_ptr(offs_t offset) const override;
std::string name() const override;
private:
uX *m_base;
};
// handler_entry_read_memory_bank/handler_entry_write_memory_bank
// Accesses banked memory, associated to a memory_bank
template<int Width, int AddrShift> class handler_entry_read_memory_bank : public handler_entry_read_address<Width, AddrShift>
{
public:
using uX = typename emu::detail::handler_entry_size<Width>::uX;
handler_entry_read_memory_bank(address_space *space, memory_bank &bank) : handler_entry_read_address<Width, AddrShift>(space, 0), m_bank(bank) {}
~handler_entry_read_memory_bank() = default;
uX read(offs_t offset, uX mem_mask) const override;
void *get_ptr(offs_t offset) const override;
std::string name() const override;
private:
memory_bank &m_bank;
};
template<int Width, int AddrShift> class handler_entry_write_memory_bank : public handler_entry_write_address<Width, AddrShift>
{
public:
using uX = typename emu::detail::handler_entry_size<Width>::uX;
handler_entry_write_memory_bank(address_space *space, memory_bank &bank) : handler_entry_write_address<Width, AddrShift>(space, 0), m_bank(bank) {}
~handler_entry_write_memory_bank() = default;
void write(offs_t offset, uX data, uX mem_mask) const override;
void *get_ptr(offs_t offset) const override;
std::string name() const override;
private:
memory_bank &m_bank;
};
#endif // MAME_EMU_EMUMEM_HEM_H