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// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
/***********************************************************************************************************
APF Imagination / M-1000 cart emulation
***********************************************************************************************************/
#include "emu.h"
#include "rom.h"
//-------------------------------------------------
// apf_rom_device - constructor
//-------------------------------------------------
DEFINE_DEVICE_TYPE(APF_ROM_STD, apf_rom_device, "apf_rom", "APF Standard Carts")
DEFINE_DEVICE_TYPE(APF_ROM_BASIC, apf_basic_device, "apf_basic", "APF BASIC Carts")
DEFINE_DEVICE_TYPE(APF_ROM_SPACEDST, apf_spacedst_device, "apf_spacedst", "APF Space Destroyer Cart")
apf_rom_device::apf_rom_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock)
: device_t(mconfig, type, tag, owner, clock), device_apf_cart_interface(mconfig, *this)
{
}
apf_rom_device::apf_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock)
: apf_rom_device(mconfig, APF_ROM_STD, tag, owner, clock)
{
}
apf_basic_device::apf_basic_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock)
: apf_rom_device(mconfig, APF_ROM_BASIC, tag, owner, clock)
{
}
apf_spacedst_device::apf_spacedst_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock)
: apf_rom_device(mconfig, APF_ROM_SPACEDST, tag, owner, clock)
{
}
/*-------------------------------------------------
mapper specific handlers
-------------------------------------------------*/
uint8_t apf_rom_device::read_rom(offs_t offset)
{
if (offset < m_rom_size)
return m_rom[offset];
else
return 0xff;
}
uint8_t apf_basic_device::extra_rom(offs_t offset)
{
if (offset < (m_rom_size - 0x2000))
return m_rom[offset + 0x2000];
else
return 0xff;
}
uint8_t apf_spacedst_device::read_ram(offs_t offset)
{
return m_ram[offset];
}
void apf_spacedst_device::write_ram(offs_t offset, uint8_t data)
{
m_ram[offset] = data;
}
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