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// license:BSD-3-Clause
// copyright-holders:smf
#include "emu.h"
#include "bankdev.h"
// device type definition
DEFINE_DEVICE_TYPE(ADDRESS_MAP_BANK, address_map_bank_device, "address_map_bank", "Address Map Bank")
address_map_bank_device::address_map_bank_device( const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock )
: device_t(mconfig, ADDRESS_MAP_BANK, tag, owner, clock),
device_memory_interface(mconfig, *this),
m_endianness(ENDIANNESS_NATIVE),
m_data_width(0),
m_addr_width(32),
m_stride(1),
m_program(nullptr),
m_offset(0),
m_shift(0)
{
}
device_memory_interface::space_config_vector address_map_bank_device::memory_space_config() const
{
return space_config_vector {
std::make_pair(AS_PROGRAM, &m_program_config)
};
}
ADDRESS_MAP_START(address_map_bank_device::amap8)
AM_RANGE(0x00000000, 0xffffffff) AM_READWRITE(read8, write8)
ADDRESS_MAP_END
ADDRESS_MAP_START(address_map_bank_device::amap16)
AM_RANGE(0x00000000, 0xffffffff) AM_READWRITE(read16, write16)
ADDRESS_MAP_END
ADDRESS_MAP_START(address_map_bank_device::amap32)
AM_RANGE(0x00000000, 0xffffffff) AM_READWRITE(read32, write32)
ADDRESS_MAP_END
ADDRESS_MAP_START(address_map_bank_device::amap64)
AM_RANGE(0x00000000, 0xffffffff) AM_READWRITE(read64, write64)
ADDRESS_MAP_END
WRITE8_MEMBER(address_map_bank_device::write8)
{
m_program->write_byte(m_offset + offset, data);
}
WRITE16_MEMBER(address_map_bank_device::write16)
{
m_program->write_word(m_offset + (offset << (m_shift+1)), data, mem_mask);
}
WRITE32_MEMBER(address_map_bank_device::write32)
{
m_program->write_dword(m_offset + (offset << (m_shift+2)), data, mem_mask);
}
WRITE64_MEMBER(address_map_bank_device::write64)
{
m_program->write_qword(m_offset + (offset << (m_shift+3)), data, mem_mask);
}
READ8_MEMBER(address_map_bank_device::read8)
{
return m_program->read_byte(m_offset + offset);
}
READ16_MEMBER(address_map_bank_device::read16)
{
return m_program->read_word(m_offset + (offset << (m_shift+1)), mem_mask);
}
READ32_MEMBER(address_map_bank_device::read32)
{
return m_program->read_dword(m_offset + (offset << (m_shift+2)), mem_mask);
}
READ64_MEMBER(address_map_bank_device::read64)
{
return m_program->read_qword(m_offset + (offset << (m_shift+3)), mem_mask);
}
void address_map_bank_device::device_config_complete()
{
m_program_config = address_space_config( "program", m_endianness, m_data_width, m_addr_width, m_shift );
}
void address_map_bank_device::device_start()
{
m_program = &space(AS_PROGRAM);
save_item(NAME(m_offset));
}
void address_map_bank_device::set_bank(offs_t bank)
{
m_offset = bank * m_stride;
}
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