diff options
author | 2015-09-13 08:41:44 +0200 | |
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committer | 2015-09-13 08:41:44 +0200 | |
commit | f88cefad27a1737c76e09d99c9fb43e173506081 (patch) | |
tree | 2d8167d03579c46e226471747eb4407bd00ed6fa /src/devices/bus/msx_cart/korean.c | |
parent | e92ac9e0fa8e99869894bea00589bbb526be30aa (diff) |
Move all devices into separate part of src tree (nw)
Diffstat (limited to 'src/devices/bus/msx_cart/korean.c')
-rw-r--r-- | src/devices/bus/msx_cart/korean.c | 298 |
1 files changed, 298 insertions, 0 deletions
diff --git a/src/devices/bus/msx_cart/korean.c b/src/devices/bus/msx_cart/korean.c new file mode 100644 index 00000000000..58cdd0d5985 --- /dev/null +++ b/src/devices/bus/msx_cart/korean.c @@ -0,0 +1,298 @@ +// license:BSD-3-Clause +// copyright-holders:Wilbert Pol +#include "emu.h" +#include "korean.h" + +const device_type MSX_CART_KOREAN_80IN1 = &device_creator<msx_cart_korean_80in1>; +const device_type MSX_CART_KOREAN_90IN1 = &device_creator<msx_cart_korean_90in1>; +const device_type MSX_CART_KOREAN_126IN1 = &device_creator<msx_cart_korean_126in1>; + + +msx_cart_korean_80in1::msx_cart_korean_80in1(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, MSX_CART_KOREAN_80IN1, "MSX Cartridge - Korean 80-in-1", tag, owner, clock, "msx_cart_korean_80in1", __FILE__) + , msx_cart_interface(mconfig, *this) + , m_bank_mask(0) +{ + for (int i = 0; i < 4; i++) + { + m_selected_bank[i] = i; + m_bank_base[i] = NULL; + } +} + + +void msx_cart_korean_80in1::device_start() +{ + save_item(NAME(m_selected_bank)); + + machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_korean_80in1::restore_banks), this)); +} + + +void msx_cart_korean_80in1::setup_bank(UINT8 bank) +{ + m_bank_base[bank] = get_rom_base() + ( m_selected_bank[bank] & m_bank_mask ) * 0x2000; +} + + +void msx_cart_korean_80in1::restore_banks() +{ + for (int i = 0; i < 4; i++) + { + setup_bank(i); + } +} + + +void msx_cart_korean_80in1::device_reset() +{ + for (int i = 0; i < 4; i++) + { + m_selected_bank[i] = i; + } +} + + +void msx_cart_korean_80in1::initialize_cartridge() +{ + UINT32 size = get_rom_size(); + + if ( size > 256 * 0x2000 ) + { + fatalerror("korean_80in1: ROM is too big\n"); + } + + UINT16 banks = size / 0x2000; + + if (size != banks * 0x2000 || (~(banks - 1) % banks)) + { + fatalerror("korean_80in1: Invalid ROM size\n"); + } + + m_bank_mask = banks - 1; + + restore_banks(); +} + + +READ8_MEMBER(msx_cart_korean_80in1::read_cart) +{ + if (offset >= 0x4000 && offset < 0xc000) + { + return m_bank_base[(offset - 0x4000) >> 13][offset & 0x1fff]; + } + + return 0xff; +} + + +WRITE8_MEMBER(msx_cart_korean_80in1::write_cart) +{ + if (offset >= 0x4000 && offset < 0x4004) + { + UINT8 bank = offset & 3; + + m_selected_bank[bank] = data; + setup_bank(bank); + } +} + + + + + +msx_cart_korean_90in1::msx_cart_korean_90in1(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, MSX_CART_KOREAN_90IN1, "MSX Cartridge - Korean 90-in-1", tag, owner, clock, "msx_cart_korean_90in1", __FILE__) + , msx_cart_interface(mconfig, *this) + , m_bank_mask(0) + , m_selected_bank(0) +{ + for (int i = 0; i < 4; i++) + { + m_bank_base[i] = NULL; + } +} + + +void msx_cart_korean_90in1::device_start() +{ + save_item(NAME(m_selected_bank)); + + machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_korean_90in1::restore_banks), this)); + + // Install IO read/write handlers + address_space &space = machine().device<cpu_device>("maincpu")->space(AS_IO); + space.install_write_handler(0x77, 0x77, write8_delegate(FUNC(msx_cart_korean_90in1::banking), this)); +} + + +void msx_cart_korean_90in1::restore_banks() +{ + UINT8 *base = get_rom_base(); + + switch (m_selected_bank & 0xc0) + { + case 0x80: + base += (m_selected_bank & 0x3e & m_bank_mask) * 0x4000; + m_bank_base[0] = base; + m_bank_base[1] = base + 0x2000; + m_bank_base[2] = base + 0x4000; + m_bank_base[3] = base + 0x6000; + break; + + case 0xc0: + base += (m_selected_bank & m_bank_mask) * 0x4000; + m_bank_base[0] = base; + m_bank_base[1] = base + 0x2000; + m_bank_base[2] = base + 0x2000; + m_bank_base[3] = base; + break; + + default: + base += (m_selected_bank & m_bank_mask) * 0x4000; + m_bank_base[0] = base; + m_bank_base[1] = base + 0x2000; + m_bank_base[2] = base; + m_bank_base[3] = base + 0x2000; + break; + } +} + + +void msx_cart_korean_90in1::device_reset() +{ + m_selected_bank = 0; +} + + +void msx_cart_korean_90in1::initialize_cartridge() +{ + UINT32 size = get_rom_size(); + + if ( size > 64 * 0x4000 ) + { + fatalerror("korean_90in1: ROM is too big\n"); + } + + UINT16 banks = size / 0x4000; + + if (size != banks * 0x4000 || (~(banks - 1) % banks)) + { + fatalerror("korean_90in1: Invalid ROM size\n"); + } + + m_bank_mask = banks - 1; + + restore_banks(); +} + + +READ8_MEMBER(msx_cart_korean_90in1::read_cart) +{ + if (offset >= 0x4000 && offset < 0xc000) + { + return m_bank_base[(offset - 0x4000) >> 13][offset & 0x1fff]; + } + + return 0xff; +} + + +WRITE8_MEMBER(msx_cart_korean_90in1::banking) +{ + m_selected_bank = data; + restore_banks(); +} + + + + + +msx_cart_korean_126in1::msx_cart_korean_126in1(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) + : device_t(mconfig, MSX_CART_KOREAN_126IN1, "MSX Cartridge - Korean 126-in-1", tag, owner, clock, "msx_cart_korean_126in1", __FILE__) + , msx_cart_interface(mconfig, *this) + , m_bank_mask(0) +{ + for (int i = 0; i < 2; i++) + { + m_selected_bank[i] = i; + m_bank_base[i] = NULL; + } +} + + +void msx_cart_korean_126in1::device_start() +{ + save_item(NAME(m_selected_bank)); + + machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_korean_126in1::restore_banks), this)); +} + + +void msx_cart_korean_126in1::setup_bank(UINT8 bank) +{ + m_bank_base[bank] = get_rom_base() + ( m_selected_bank[bank] & m_bank_mask ) * 0x4000; +} + + +void msx_cart_korean_126in1::restore_banks() +{ + for (int i = 0; i < 2; i++) + { + setup_bank(i); + } +} + + +void msx_cart_korean_126in1::device_reset() +{ + for (int i = 0; i < 2; i++) + { + m_selected_bank[i] = i; + } +} + + +void msx_cart_korean_126in1::initialize_cartridge() +{ + UINT32 size = get_rom_size(); + + if ( size > 256 * 0x4000 ) + { + fatalerror("korean_126in1: ROM is too big\n"); + } + + UINT16 banks = size / 0x4000; + + if (size != banks * 0x4000 || (~(banks - 1) % banks)) + { + fatalerror("korean_126in1: Invalid ROM size\n"); + } + + m_bank_mask = banks - 1; + + restore_banks(); +} + + +READ8_MEMBER(msx_cart_korean_126in1::read_cart) +{ + if (offset >= 0x4000 && offset < 0xc000) + { + return m_bank_base[offset >> 15][offset & 0x3fff]; + } + + return 0xff; +} + + +WRITE8_MEMBER(msx_cart_korean_126in1::write_cart) +{ + if (offset >= 0x4000 && offset < 0x4002) + { + UINT8 bank = offset & 1; + + m_selected_bank[bank] = data; + setup_bank(bank); + } +} |