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// license:BSD-3-Clause
// copyright-holders:S. Smith,David Haywood,Fabio Priuli
/***********************************************************************************************************
Neo Geo cart emulation
The King of Fighters 10th Anniversary Bootleg cart type
***********************************************************************************************************/
#include "emu.h"
#include "boot_kof10th.h"
//-------------------------------------------------
// neogeo_kof10th_cart_device - constructor
//-------------------------------------------------
DEFINE_DEVICE_TYPE(NEOGEO_KOF10TH_CART, neogeo_kof10th_cart_device, "neocart_kof10th", "Neo Geo KoF 10th Ann. Bootleg Cart")
neogeo_kof10th_cart_device::neogeo_kof10th_cart_device(const machine_config &mconfig, const char *tag, device_t *owner, uint16_t clock) :
neogeo_bootleg_cart_device(mconfig, NEOGEO_KOF10TH_CART, tag, owner, clock)
{
}
//-------------------------------------------------
// mapper specific start/reset
//-------------------------------------------------
void neogeo_kof10th_cart_device::device_start()
{
save_item(NAME(m_special_bank));
save_item(NAME(m_cart_ram));
save_item(NAME(m_cart_ram2));
}
void neogeo_kof10th_cart_device::device_reset()
{
m_special_bank = 0;
memset(m_cart_ram, 0x00, 0x2000);
memset(m_cart_ram2, 0x00, 0x20000);
}
/*-------------------------------------------------
mapper specific handlers
-------------------------------------------------*/
void neogeo_kof10th_cart_device::device_add_mconfig(machine_config &config)
{
NEOBOOT_PROT(config, m_prot);
}
void neogeo_kof10th_cart_device::decrypt_all(DECRYPT_ALL_PARAMS)
{
m_prot->kof10th_decrypt(cpuregion, cpuregion_size);
memcpy(m_cart_ram2, (uint8_t *)cpuregion + 0xe0000, 0x20000);
m_fixed = (get_fixed_size()) ? get_fixed_base() : get_region_fixed_base();
save_pointer(NAME(m_fixed), 0x40000);
}
/* this uses RAM based tiles for the text layer, however the implementation
is incomplete, at the moment the S data is copied from the program rom on
start-up instead */
uint32_t neogeo_kof10th_cart_device::get_bank_base(uint16_t sel)
{
uint32_t bank = 0x100000 + ((sel & 7) << 20);
if (bank >= 0x700000)
bank = 0x100000;
return bank;
}
uint16_t neogeo_kof10th_cart_device::get_helper()
{
return m_cart_ram[0xffc];
}
uint32_t neogeo_kof10th_cart_device::get_special_bank()
{
return m_special_bank;
}
uint16_t neogeo_kof10th_cart_device::protection_r(address_space &space, offs_t offset)
{
return m_cart_ram[offset];
}
uint16_t neogeo_kof10th_cart_device::addon_r(offs_t offset)
{
// printf("kof10th_RAM2_r\n");
return m_cart_ram2[offset];
}
void neogeo_kof10th_cart_device::protection_w(offs_t offset, uint16_t data, uint16_t mem_mask)
{
if (offset < 0x40000/2)
{
if (!m_cart_ram[0xffe])
COMBINE_DATA(&m_cart_ram2[(0x00000/2) + (offset & 0xffff)]); // Write to RAM bank A
else
m_fixed[offset] = bitswap<8>(data, 7,6,0,4,3,2,1,5); // Write S data on-the-fly
}
else if (offset >= 0xfe000/2)
{
if (offset == 0xffff0/2)
{
// Standard bankswitch
//m_bankdev->neogeo_set_main_cpu_bank_address(get_bank_base(data));
}
else if (offset == 0xffff8/2 && m_cart_ram[0xffc] != data)
{
// Special bankswitch
m_special_bank = (data & 1) ? 0x800000/2 : 0x700000/2;
}
COMBINE_DATA(&m_cart_ram[offset & 0xfff]);
}
}
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