misc. nw.

hash/megadriv.xml

@@ -21821,6 +21821,57 @@ Notice that these are not working on real hardware due to bugged code with VDP i
 			</dataarea>
 		</part>
 	</software>
+	
+	<software name="psolar">
+		<description>Pier Solar and the Great Architects (World, Rev. C)</description>
+		<year>2010</year>
+		<publisher>WaterMelon</publisher>
+		<part name="cart" interface="megadriv_cart">
+			<feature name="slot" value="rom_stm95"/>
+			<dataarea name="rom" width="16" endianness="big" size="8388608">
+				<rom name="pier solar and the great architects (world) (en,es,pt) (rev c) (unl).bin" size="8388608" crc="dfb94f1b" sha1="2e7710b1956514c27be24db000e60d3c3a1dc2d8" offset="0x000000" />
+			</dataarea>
+		</part>
+	</software>
+	
+	<software name="psolara" cloneof="psolar">
+		<description>Pier Solar and the Great Architects (World, Rev. B)</description>
+		<year>2010</year>
+		<publisher>WaterMelon</publisher>
+		<part name="cart" interface="megadriv_cart">
+			<feature name="slot" value="rom_stm95"/>
+			<dataarea name="rom" width="16" endianness="big" size="8388608">
+				<rom name="pier solar and the great architects (world) (en,fr,de) (rev b) (unl).bin" size="8388608" crc="25b7063e" sha1="2e2b03cdf58662b450ac09e9883d5767ce2be350" offset="0x000000" />
+			</dataarea>
+		</part>
+	</software>
+	
+	<software name="psolarb" cloneof="psolar">
+		<description>Pier Solar and the Great Architects (World, Rev. A)</description>
+		<year>2010</year>
+		<publisher>WaterMelon</publisher>
+		<part name="cart" interface="megadriv_cart">
+			<feature name="slot" value="rom_stm95"/>
+			<dataarea name="rom" width="16" endianness="big" size="8388608">
+				<rom name="pier solar and the great architects (world) (en,fr,de) (rev a) (unl).bin" size="8388608" crc="4261ea9b" sha1="59f7557725a740322fa92402e13c98823f795aa9" offset="0x000000" />
+			</dataarea>
+		</part>
+	</software>
+	
+	<software name="psolarp" cloneof="psolar">
+		<description>Pier Solar and the Great Architects (World, Prototype)</description>
+		<year>2010</year>
+		<publisher>WaterMelon</publisher>
+		<part name="cart" interface="megadriv_cart">
+			<feature name="slot" value="rom_sram"/>
+			<dataarea name="rom" width="16" endianness="big" size="3407872">
+				<rom name="pier solar and the great architects (world) (beta) (unl).bin" size="3407872" crc="55ffb501" sha1="d672e456f1af120d1fa7137c3fbee1d9f62d9296" offset="0x000000" />
+			</dataarea>
+			<!-- What is the correct amount?!? -->
+			<dataarea name="sram" size="4096">
+			</dataarea>
+		</part>
+	</software>
 
 	<software name="pinkp" cloneof="pink">
 		<description>Pink Goes to Hollywood (USA, Prototype)</description>
@@ -25157,6 +25208,20 @@ Notice that these are not working on real hardware due to bugged code with VDP i
 	</software>
 	
 	<software name="starodys">
+		<description>Star Odyssey (USA)</description>
+		<year>2011</year>
+		<publisher>Super Fighter Team</publisher>
+		<part name="cart" interface="megadriv_cart">
+			<feature name="slot" value="rom_sf004"/>
+			<dataarea name="rom" width="16" endianness="big" size="2097152">
+				<rom name="star odyssey (world) (unl).bin" size="2097152" crc="0b670a3e" sha1="791ee690b2929d4edfda22ff23d7cfd74376299e" offset="0x000000" />
+			</dataarea>
+			<dataarea name="sram" size="32768">
+			</dataarea>
+		</part>
+	</software>
+	
+	<software name="starodysp" cloneof="starodys">
 		<description>Star Odyssey (USA, Prototype 19920116)</description>
 		<year>1990</year>
 		<publisher>Sage's Creation</publisher>
@@ -29589,7 +29654,7 @@ Notice that these are not working on real hardware due to bugged code with VDP i
 		<year>2008</year>
 		<publisher>Super Fighter Team</publisher>
 		<part name="cart" interface="megadriv_cart">
-			<feature name="slot" value="rom_wukong"/>
+			<feature name="slot" value="rom_sf002"/>
 			<dataarea name="rom" width="16" endianness="big" size="2228224">
 				<rom name="legend of wukong (unl).bin" size="2228224" crc="72f11771" sha1="4ef41e4caccab118014abb8e079c7e5668a4f468" offset="0x000000"/>
 			</dataarea>
@@ -29938,7 +30003,7 @@ Notice that these are not working on real hardware due to bugged code with VDP i
 		<year>2005</year>
 		<publisher>Super Fighter Team</publisher>
 		<part name="cart" interface="megadriv_cart">
-			<feature name="slot" value="rom_beggarp"/>
+			<feature name="slot" value="rom_sf001"/>
 			<dataarea name="rom" width="16" endianness="big" size="4194304">
 				<rom name="beggar prince (unl).bin" size="4194304" crc="f3af46cd" sha1="f481b970756c482d8f408c4bab8902172837e7d8" offset="0x000000"/>
 			</dataarea>

src/devices/bus/megadrive/md_carts.cpp

@@ -18,8 +18,9 @@ SLOT_INTERFACE_START(md_cart)
 	SLOT_INTERFACE_INTERNAL("rom_fram",  MD_ROM_FRAM)
 	SLOT_INTERFACE_INTERNAL("rom_hardbl95", MD_ROM_SRAM)
 	SLOT_INTERFACE_INTERNAL("rom_xinqig",  MD_ROM_SRAM)
-	SLOT_INTERFACE_INTERNAL("rom_beggarp",  MD_ROM_BEGGARP)
+	SLOT_INTERFACE_INTERNAL("rom_sf001",  MD_ROM_BEGGARP)
-	SLOT_INTERFACE_INTERNAL("rom_wukong",  MD_ROM_WUKONG)
+	SLOT_INTERFACE_INTERNAL("rom_sf002",  MD_ROM_WUKONG)
+	SLOT_INTERFACE_INTERNAL("rom_sf004",  MD_ROM_STARODYS)
 // EEPROM handling (not supported fully yet)
 	SLOT_INTERFACE_INTERNAL("rom_eeprom",  MD_STD_EEPROM)
 	SLOT_INTERFACE_INTERNAL("rom_nbajam",  MD_EEPROM_NBAJAM)

src/devices/bus/megadrive/md_slot.cpp

@@ -235,8 +235,9 @@ static const md_slot slot_list[] =
 	{ SEGA_FRAM, "rom_fram" },
 	{ HARDBALL95, "rom_hardbl95" },
 	{ XINQIG, "rom_xinqig"},
-	{ BEGGARP, "rom_beggarp"},
+	{ BEGGARP, "rom_sf001"},
-	{ WUKONG, "rom_wukong"},
+	{ WUKONG, "rom_sf002"},
+	{ STARODYS, "rom_sf004"},
 
 	{ SEGA_EEPROM, "rom_eeprom" },
 	{ NBA_JAM, "rom_nbajam" },
@@ -526,7 +527,7 @@ int base_md_cart_slot_device::load_nonlist()
 
 
 	// STEP 4: determine the cart type (to deal with sram/eeprom & pirate mappers)
-	m_type = get_cart_type(ROM, len);
+	m_type = get_cart_type(ROM, tmplen - offset);
 
 	// handle mirroring of ROM, unless it's SSF2 or Pier Solar
 	if (m_type != SSF2 && m_type != PSOLAR)
@@ -667,6 +668,12 @@ void base_md_cart_slot_device::setup_nvram()
 			m_cart->nvram_alloc(m_cart->m_nvram_end - m_cart->m_nvram_start + 1);
 			m_cart->m_nvram_active = 1;
 			break;
+		case STARODYS:
+			m_cart->m_nvram_start = 0x200000;
+			m_cart->m_nvram_end = m_cart->m_nvram_start + 0xfffff;
+			m_cart->nvram_alloc(0x8000/2); // 32K mirrored
+			m_cart->m_nvram_active = 1;
+			break;
 		case NBA_JAM_ALT:
 			m_cart->nvram_alloc(0x100);
 			break;
@@ -816,6 +823,9 @@ int base_md_cart_slot_device::get_cart_type(UINT8 *ROM, UINT32 len)
 			if (!memcmp((char *)&ROM[0x0150], "Virtua Racing", 13))
 				type = SEGA_SVP;
 
+			if (!memcmp((char *)&ROM[0x0180], "SF-004", 6)) // Star Odyssey
+				type = STARODYS;
+
 			break;
 
 		case 0x200005:
@@ -823,6 +833,11 @@ int base_md_cart_slot_device::get_cart_type(UINT8 *ROM, UINT32 len)
 				type = REDCL_EN;
 			break;
 
+		case 0x220000:
+			if (!memcmp((char *)&ROM[0x0180], "SF-002", 6)) // Legend of Wukong
+				type = WUKONG;
+			break;
+			
 		case 0x300000:
 			if (!memcmp(&ROM[0x220], sdk_sig, sizeof(sdk_sig)))
 				type = LIONK3;
@@ -858,6 +873,9 @@ int base_md_cart_slot_device::get_cart_type(UINT8 *ROM, UINT32 len)
 			if (!memcmp((char *)&ROM[0x0180], "GM T-81476", 10)) // Big Hurt Baseball
 				type = C_SLAM;
 
+			if (!memcmp((char *)&ROM[0x0180], "SF-001", 6)) // Beggar Prince
+				type = BEGGARP;
+
 			break;
 
 		case 0x500000:

src/devices/bus/megadrive/md_slot.h

@@ -26,6 +26,7 @@ enum
 	XINQIG,                   /* Xin Qigai Wangzi uses different sram start address and has no valid header */
 	BEGGARP,                     /* Beggar Prince uses different sram start address + bankswitch tricks */
 	WUKONG,                      /* Legend of Wukong uses different sram start address + bankswitch trick for last 128K of ROM */
+	STARODYS,                    /* Star Odyssey */
 
 	// EEPROM
 	SEGA_EEPROM,                 /* Wonder Boy V / Evander Holyfield's Boxing / Greatest Heavyweights of the Ring / Sports Talk Baseball / Megaman */

src/devices/bus/megadrive/rom.cpp

@@ -61,6 +61,7 @@ const device_type MD_ROM_TOPF = &device_creator<md_rom_topf_device>;
 const device_type MD_ROM_RADICA = &device_creator<md_rom_radica_device>;
 const device_type MD_ROM_BEGGARP = &device_creator<md_rom_beggarp_device>;
 const device_type MD_ROM_WUKONG = &device_creator<md_rom_wukong_device>;
+const device_type MD_ROM_STARODYS = &device_creator<md_rom_starodys_device>;
 
 
 md_std_rom_device::md_std_rom_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source)
@@ -235,6 +236,11 @@ md_rom_wukong_device::md_rom_wukong_device(const machine_config &mconfig, const
 				{
 }
 
+md_rom_starodys_device::md_rom_starodys_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
+					: md_std_rom_device(mconfig, MD_ROM_STARODYS, "MD Star Odyssey", tag, owner, clock, "md_rom_starodys", __FILE__), m_mode(0), m_lock(0), m_ram_enable(0), m_base(0)
+{
+}
+
 //-------------------------------------------------
 //  device_start - device-specific startup
 //-------------------------------------------------
@@ -416,6 +422,22 @@ void md_rom_wukong_device::device_reset()
 	m_mode = 0;
 }
 
+void md_rom_starodys_device::device_start()
+{
+	save_item(NAME(m_mode));
+	save_item(NAME(m_lock));
+	save_item(NAME(m_ram_enable));
+	save_item(NAME(m_base));
+}
+
+void md_rom_starodys_device::device_reset()
+{
+	m_mode = 0;
+	m_lock = 0;
+	m_ram_enable = 1;
+	m_base = 0;
+}
+
 /*-------------------------------------------------
  mapper specific handlers
  -------------------------------------------------*/
@@ -1356,16 +1378,14 @@ WRITE16_MEMBER(md_rom_beggarp_device::write)
 		m_nvram[offset & 0x3fff] = data;
 }
 
+// this works the same as in standard SRAM carts
 WRITE16_MEMBER(md_rom_beggarp_device::write_a13)
 {
 	if (offset == 0xf0/2)
 	{
-		/* unsure if this is actually supposed to toggle or just switch on? yet to encounter game that uses this */
 		m_nvram_active = BIT(data, 0);
 		m_nvram_readonly = BIT(data, 1);
 
-		// since a lot of generic carts ends up here if loaded from fullpath
-		// we turn on nvram (with m_nvram_handlers_installed) only if they toggle it on by writing here!
 		if (m_nvram_active)
 			m_nvram_handlers_installed = 1;
 	}
@@ -1388,7 +1408,7 @@ READ16_MEMBER(md_rom_wukong_device::read)
 	if (offset >= m_nvram_start/2 && offset <= m_nvram_end/2 && m_nvram_active)
 		return m_nvram[offset - m_nvram_start/2];
 
-	// here can access both last 128K of the ROM and the first 128K, depending of bit7 of m_mode
+	// here can access both last 128K of the ROM and the first 128K, depending of m_mode
 	if (offset >= 0x200000/2 && offset < 0x220000/2)
 		return !m_mode ? m_rom[offset] : m_rom[offset & 0xffff];
 	else if (offset < 0x400000/2)
@@ -1406,17 +1426,110 @@ WRITE16_MEMBER(md_rom_wukong_device::write)
 		m_nvram[offset - m_nvram_start/2] = data;
 }
 
+// this works the same as in standard SRAM carts
 WRITE16_MEMBER(md_rom_wukong_device::write_a13)
 {
 	if (offset == 0xf0/2)
 	{
-		/* unsure if this is actually supposed to toggle or just switch on? yet to encounter game that uses this */
 		m_nvram_active = BIT(data, 0);
 		m_nvram_readonly = BIT(data, 1);
 
-		// since a lot of generic carts ends up here if loaded from fullpath
-		// we turn on nvram (with m_nvram_handlers_installed) only if they toggle it on by writing here!
 		if (m_nvram_active)
 			m_nvram_handlers_installed = 1;
 	}
 }
+
+
+/*-------------------------------------------------
+ STAR ODYSSEY
+ This game uses a slightly more complex mapper:
+ not only RAM can be enabled / disabled, but also 
+ ROM can be mapped in three different modes.
+ In what we call Mode0 the first 256K are mirrored
+ into area 0x000000-0x1fffff; in Mode1 cart gives
+ access to 5x256K banks into area 0x000000-0x13ffff
+ and open bus into 0x140000-0x1fffff; in Mode2 the
+ ROM is disabled and the whole 0x000000-0x1fffff
+ gives open bus
+-------------------------------------------------*/
+
+READ16_MEMBER(md_rom_starodys_device::read)
+{
+	if (offset >= m_nvram_start/2 && offset <= m_nvram_end/2 && m_nvram_active && m_ram_enable)
+		return m_nvram[offset & 0x3fff];
+	
+	if (offset < 0x200000/2)
+	{
+		if (m_mode == 0)
+			return m_rom[offset & 0x3ffff];
+		else if (m_mode == 1 && offset < 0x140000/2)
+			return m_rom[m_base * 0x40000/2 + offset];
+		else
+			return 0xffff;
+	}
+	else if (offset < 0x400000/2)
+		return m_rom[offset & 0xfffff];
+	else
+		return 0xffff;
+}
+
+WRITE16_MEMBER(md_rom_starodys_device::write)
+{
+	if (offset >= m_nvram_start/2 && offset <= m_nvram_end/2 && m_nvram_active && !m_nvram_readonly && m_ram_enable)
+		m_nvram[offset & 0x3fff] = data;
+
+	if (offset < 0x10000/2)
+	{
+		UINT32 prot_offs = (offset * 2) & 0xf00;
+		if (!m_lock)
+		{
+			if (prot_offs == 0xd00)
+			{
+				//printf("RAM enable %s!\n", BIT(data, 7) ? "Yes" : "No");
+				m_ram_enable = BIT(data, 7);
+			}
+			if (prot_offs == 0xe00)
+			{
+				if (BIT(data, 5))
+					m_mode = 2;
+				else if (BIT(data, 6))
+					m_mode = 1;
+				else
+					m_mode = 0;
+				//printf("ROM mode %d!\n", m_mode);
+				
+				if (!BIT(data, 7))
+				{
+					//printf("LOCK BANKSWITCH!\n");
+					m_lock = 1;
+				}
+			}
+			if (prot_offs == 0xf00)
+			{
+				m_base = ((data >> 4) & 7);
+				m_mode = 1;
+				//printf("ROM base %d!\n", m_base);
+			}
+		}
+	}
+	
+}
+
+READ16_MEMBER(md_rom_starodys_device::read_a13)
+{
+	return m_base << 4;
+}
+
+// this works the same as in standard SRAM carts
+WRITE16_MEMBER(md_rom_starodys_device::write_a13)
+{
+	if (offset == 0xf0/2)
+	{
+		m_nvram_active = BIT(data, 0);
+		m_nvram_readonly = BIT(data, 1);
+		
+		if (m_nvram_active)
+			m_nvram_handlers_installed = 1;
+	}
+}
+

src/devices/bus/megadrive/rom.h

@@ -545,6 +545,28 @@ private:
 	UINT8 m_mode;
 };
 
+// ======================> md_rom_starodys_device
+
+class md_rom_starodys_device : public md_std_rom_device
+{
+public:
+	// construction/destruction
+	md_rom_starodys_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+	
+	// device-level overrides
+	virtual void device_start() override;
+	virtual void device_reset() override;
+	
+	// reading and writing
+	virtual DECLARE_READ16_MEMBER(read) override;
+	virtual DECLARE_WRITE16_MEMBER(write) override;
+	virtual DECLARE_READ16_MEMBER(read_a13) override;
+	virtual DECLARE_WRITE16_MEMBER(write_a13) override;
+	
+private:
+	UINT8 m_mode, m_lock, m_ram_enable, m_base;
+};
+
 
 
 // device type definition
@@ -581,5 +603,6 @@ extern const device_type MD_ROM_TOPF;
 extern const device_type MD_ROM_RADICA;
 extern const device_type MD_ROM_BEGGARP;
 extern const device_type MD_ROM_WUKONG;
+extern const device_type MD_ROM_STARODYS;
 
 #endif