MAME SVN History

199869 Revisions

r30834 Wednesday 4th June, 2014 at 17:57:35 UTC by Wilbert Pol
(MESS) msx.c: Added support for mapper used by Holy Quran. [hap, Wilbert Pol]

[hash]	msx1_cart.xml
[src/emu/bus]	bus.mak
[src/emu/bus/msx_cart]	cartridge.c holy_quran.c* holy_quran.h*

trunk/src/emu/bus/bus.mak
r30833	r30834
412	412	BUSOBJS += $(BUSOBJ)/msx_cart/crossblaim.o
413	413	BUSOBJS += $(BUSOBJ)/msx_cart/fmpac.o
414	414	BUSOBJS += $(BUSOBJ)/msx_cart/hfox.o
	415	BUSOBJS += $(BUSOBJ)/msx_cart/holy_quran.o
415	416	BUSOBJS += $(BUSOBJ)/msx_cart/konami.o
416	417	BUSOBJS += $(BUSOBJ)/msx_cart/korean.o
417	418	BUSOBJS += $(BUSOBJ)/msx_cart/majutsushi.o

trunk/src/emu/bus/msx_cart/holy_quran.c
r0	r30834
	1	#include "emu.h"
	2	#include "holy_quran.h"
	3
	4
	5	const device_type MSX_CART_HOLY_QURAN = &device_creator<msx_cart_holy_quran>;
	6
	7
	8	msx_cart_holy_quran::msx_cart_holy_quran(const machine_config &mconfig, const char tag, device_t owner, UINT32 clock)
	9	: device_t(mconfig, MSX_CART_HOLY_QURAN, "MSX Cartridge - Holy Quran", tag, owner, clock, "msx_cart_holy_quran", __FILE__)
	10	, msx_cart_interface(mconfig, *this)
	11	, m_decrypt(false)
	12	{
	13	for (int i = 0; i < 4; i++)
	14	{
	15	m_selected_bank[i] = 0;
	16	m_bank_base[i] = NULL;
	17	}
	18
	19	/* protection uses a simple rotation on databus, some lines inverted:
	20	D0 D4 D4 D5
	21	D1 ~ D3 D5 ~ D2
	22	D2 ~ D6 D6 D7
	23	D3 ~ D0 D7 D1 */
	24	for (int i=0; i < 0x100; i++)
	25	{
	26	m_lookup_prot[i] = (((i << 4) & 0x50) \| ((i >> 3) & 5) \| ((i << 1) & 0xa0) \| ((i << 2) & 8) \| ((i >> 6) & 2)) ^ 0x4d;
	27	}
	28	}
	29
	30
	31	void msx_cart_holy_quran::device_start()
	32	{
	33	save_item(NAME(m_selected_bank));
	34	save_item(NAME(m_decrypt));
	35
	36	machine().save().register_postload(save_prepost_delegate(FUNC(msx_cart_holy_quran::restore_banks), this));
	37	}
	38
	39
	40	void msx_cart_holy_quran::restore_banks()
	41	{
	42	m_bank_base[0] = get_rom_base() + (m_selected_bank[0] & 0x7f) * 0x2000;
	43	m_bank_base[1] = get_rom_base() + (m_selected_bank[1] & 0x7f) * 0x2000;
	44	m_bank_base[2] = get_rom_base() + (m_selected_bank[2] & 0x7f) * 0x2000;
	45	m_bank_base[3] = get_rom_base() + (m_selected_bank[3] & 0x7f) * 0x2000;
	46	}
	47
	48
	49	void msx_cart_holy_quran::device_reset()
	50	{
	51	for (int i = 0; i < 4; i++)
	52	{
	53	m_selected_bank[i] = 0;
	54	}
	55	}
	56
	57
	58	void msx_cart_holy_quran::initialize_cartridge()
	59	{
	60	if (get_rom_size() != 0x100000)
	61	{
	62	fatalerror("holy_quran: Invalid ROM size\n");
	63	}
	64
	65	restore_banks();
	66	}
	67
	68
	69	READ8_MEMBER(msx_cart_holy_quran::read_cart)
	70	{
	71	if (offset >= 0x4000 && offset < 0xc000)
	72	{
	73	UINT8 data = m_bank_base[(offset - 0x4000) >> 13][offset & 0x1fff];
	74
	75	if (m_decrypt)
	76	{
	77	return m_lookup_prot[data];
	78	}
	79
	80	// The decryption should actually start working after the first M1 cycle executing something
	81	// from the cartridge.
	82	if (offset == ((m_rom[3] << 8) \| m_rom[2]) && !space.debugger_access())
	83	{
	84	m_decrypt = true;
	85	}
	86
	87	return data;
	88	}
	89	return 0xff;
	90	}
	91
	92
	93	WRITE8_MEMBER(msx_cart_holy_quran::write_cart)
	94	{
	95	switch (offset)
	96	{
	97	case 0x5000:
	98	m_selected_bank[0] = data;
	99	restore_banks();
	100	break;
	101	case 0x5400:
	102	m_selected_bank[1] = data;
	103	restore_banks();
	104	break;
	105	case 0x5800:
	106	m_selected_bank[2] = data;
	107	restore_banks();
	108	break;
	109	case 0x5c00:
	110	m_selected_bank[3] = data;
	111	restore_banks();
	112	break;
	113	default:
	114	logerror("msx_cart_holy_quran: unhandled write %02x to %04x\n", data, offset);
	115	break;
	116	}
	117	}
	118

Property changes on: trunk/src/emu/bus/msx_cart/holy_quran.c
Added: svn:mime-type + text/plain Added: svn:eol-style + native

trunk/src/emu/bus/msx_cart/holy_quran.h
r0	r30834
	1	#ifndef __MSX_CART_HOLY_QURAN_H
	2	#define __MSX_CART_HOLY_QURAN_H
	3
	4	#include "bus/msx_cart/cartridge.h"
	5
	6
	7	extern const device_type MSX_CART_HOLY_QURAN;
	8
	9
	10	class msx_cart_holy_quran : public device_t
	11	, public msx_cart_interface
	12	{
	13	public:
	14	msx_cart_holy_quran(const machine_config &mconfig, const char tag, device_t owner, UINT32 clock);
	15
	16	// device-level overrides
	17	virtual void device_start();
	18	virtual void device_reset();
	19
	20	virtual void initialize_cartridge();
	21
	22	virtual DECLARE_READ8_MEMBER(read_cart);
	23	virtual DECLARE_WRITE8_MEMBER(write_cart);
	24
	25	void restore_banks();
	26
	27	private:
	28	UINT8 m_lookup_prot[256];
	29	UINT8 m_selected_bank[4];
	30	UINT8 *m_bank_base[4];
	31	bool m_decrypt;
	32	};
	33
	34
	35	#endif

Property changes on: trunk/src/emu/bus/msx_cart/holy_quran.h
Added: svn:mime-type + text/plain Added: svn:eol-style + native

trunk/src/emu/bus/msx_cart/cartridge.c
r30833	r30834
5	5	#include "crossblaim.h"
6	6	#include "fmpac.h"
7	7	#include "hfox.h"
	8	#include "holy_quran.h"
8	9	#include "konami.h"
9	10	#include "korean.h"
10	11	#include "majutsushi.h"
r30833	r30834
45	46	SLOT_INTERFACE_INTERNAL("super_swangi", MSX_CART_SUPER_SWANGI)
46	47	SLOT_INTERFACE_INTERNAL("hfox", MSX_CART_HFOX)
47	48	SLOT_INTERFACE_INTERNAL("keyboard_master", MSX_CART_KEYBOARD_MASTER)
	49	SLOT_INTERFACE_INTERNAL("holy_quran", MSX_CART_HOLY_QURAN)
48	50	SLOT_INTERFACE_END
49	51
50	52

trunk/hash/msx1_cart.xml
r30833	r30834
15242	15242	</part>
15243	15243	</software>
15244	15244
15245		<!-- FIXME: proper HOLYQURAN mapper needs to be implemented! -->
15246		<software name="quran" supported="no">
	15245	<software name="quran">
15247	15246	<description>The Holy Quran</description>
15248	15247	<year>1987</year>
15249	15248	<publisher>Al Alamiah</publisher>
15250	15249	<info name="serial" value="R052" />
15251	15250	<info name="usage" value="Requires an Arabic MSX" />
15252	15251	<part name="cart" interface="msx_cart">
15253		<feature name="slot" value="ascii16" />
15254		<feature name="mapper" value="M60002-0125SP-16" /> <!-- WRONG MAPPER (but in this way no crash of the emulator) -->
	15252	<feature name="slot" value="holy_quran" />
15255	15253	<dataarea name="rom" size="1048576">
15256		<rom name="holyquran.rom" size="1048576" crc="83f28ad3" sha1="0dbc7defd96b71c1fe2d63cbc725f5e58aea2db0" offset="0x0000" />
	15254	<!-- there are 2 ROMs on the cartridge -->
	15255	<rom name="holyquran.rom" size="1048576" crc="3b003e5c" sha1="7d439080b43d94385fd4c426d4f6fee884bc2926" status="baddump" offset="0x0000" />
15257	15256	</dataarea>
15258	15257	</part>
15259	15258	</software>

199869 Revisions