mirror of
https://github.com/holub/mame
synced 2025-04-19 07:00:31 +03:00
8bf993ca5b
* Moved expansion card emulation out of the system into card devices. * Removed machine configuration settings for expansion settings. * Started to modernise the HuCard slot interface. New working software list items (pce.xml) ------------------------ Arcade Card Pro
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Fabio Priuli, Wilbert Pol
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/***********************************************************************************************************
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PC-Engine & Turbografx-16 Super System Card emulation
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***********************************************************************************************************/
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#include "emu.h"
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#include "pce_scdsys.h"
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//-------------------------------------------------
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// pce_cdsys3_device - constructor
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//-------------------------------------------------
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DEFINE_DEVICE_TYPE(PCE_ROM_CDSYS3J, pce_cdsys3j_device, "pce_cdsys3j", "PCE Super System Card")
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DEFINE_DEVICE_TYPE(PCE_ROM_CDSYS3U, pce_cdsys3u_device, "pce_cdsys3u", "TG16 Super System Card")
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pce_cdsys3_device::pce_cdsys3_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, type, tag, owner, clock)
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, device_pce_cart_interface(mconfig, *this)
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, m_scdsys()
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{
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}
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pce_cdsys3j_device::pce_cdsys3j_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: pce_cdsys3_device(mconfig, PCE_ROM_CDSYS3J, tag, owner, clock)
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{
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}
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pce_cdsys3u_device::pce_cdsys3u_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: pce_cdsys3_device(mconfig, PCE_ROM_CDSYS3U, tag, owner, clock)
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{
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}
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pce_scdsys_shared::pce_scdsys_shared()
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: m_ram(nullptr)
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, m_region(false)
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{
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}
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//-------------------------------------------------
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// mapper specific start/reset
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//-------------------------------------------------
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void pce_cdsys3_device::device_start()
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{
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m_scdsys.init(*this);
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m_scdsys.set_region(false);
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}
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void pce_cdsys3u_device::device_start()
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{
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pce_cdsys3_device::device_start();
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m_scdsys.set_region(true);
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}
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void pce_scdsys_shared::init(device_t &device)
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{
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m_ram = make_unique_clear<uint8_t[]>(0x30000);
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device.save_pointer(NAME(m_ram), 0x30000);
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}
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/*-------------------------------------------------
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mapper specific handlers
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-------------------------------------------------*/
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uint8_t pce_scdsys_shared::register_r(offs_t offset)
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{
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switch (offset & 0x0f)
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{
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// TODO: 0x1 through 0x3 is Super CD-ROM²/PCE Duo stuff?
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case 0x1: return 0xaa;
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case 0x2: return 0x55;
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case 0x3: return 0x00;
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case 0x5: return (m_region) ? 0x55 : 0xaa;
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case 0x6: return (m_region) ? 0xaa : 0x55;
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case 0x7: return 0x03;
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}
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return 0x00;
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}
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void pce_cdsys3_device::install_memory_handlers(address_space &space)
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{
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// TODO: ROM address mirrored?
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space.install_rom(0x000000, 0x03ffff, 0x040000, m_rom);
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space.install_ram(0x0d0000, 0x0fffff, m_scdsys.ram());
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space.install_read_handler(0x1ff8c0, 0x1ff8c7, 0, 0x330, 0, emu::rw_delegate(*this, FUNC(pce_cdsys3_device::register_r)));
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}
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