tvgames/xavix*: Lots of XaviX, XaviX2, and SuperXaviX updates [David …

…Haywood]

* superxavix: some research on the bitmap layer, slight visual improvement where it gets used
* xavix - begin to move towards a cleaner bus implementation without the memory bypass (as some later SuperXaviX games will need it)
* superxavix CRTC(?) logging
* make bitmap writes kinda work in suprtvpchk demo mode
* attempt to improve plotter behavior
* some experiments for tak_chq
* some extra logging for math unit
* start moving some superxavix specifics to their own class
* a few xavix2000 opcodes
* note about loading screens on some super tv-pc sets
* possible workaround for the super tv-pc issues, there's definitely something more funky with the superxavix address buses
* added missing cmc_imp opcode for ban_ordj (sprites now appear in demo)
* swap tilemap priorities in cases where priority is equal (for epo_golf)
* document how noise effect is enabled, even if it isn't currently understood
* some notes of things that need revisiting
* implement tile addressing mode used by epo_stad
* more closely match math unit behavior to some hardware tests
* use more appropriate external bus sizes in some cases
* added 2 more sets, one SuperXaviX, one XaviX2
* start trying to understand the extended mode anpanmdx uses
* xavmusic research
* some of the anpanman inputs are simple button responses at least
* improve epo_doka sprites
* assume bitmap layer has lower priority than tilemaps (several cases suggest as much)
* mark supertvpc 'double mouse' cart as a bad dump because the code looks corrupt in places, add 2 workaround to boot other sets so that graphic features can be better tested
* add some (not correct) mouse handling to supertvpc
* update some notes
* start trying to improve superxavix IO
* add Piano PC

New NOT WORKING machines
------------------------------
Anpanman Kazoku De Ikunou Mat DX (Japan) [TeamEurope, David Haywood]
Let's TV Play Dragon Ball Z Battle Experience Kamehameha 2 Ossu Ome Goku Tenkaichi Budokai (Japan) [TeamEurope, David Haywood]
Doraemon Moving! Oekaki (Japan) [TeamEurope, David Haywood]
Anpanman Pyon-Pyon Ikunou Mat (Japan) [TeamEurope, David Haywood]
Doraemon anywhere - Japan travel game DX experience! Where is the Dragon Grand Prix! (Japan) [TeamEurope, David Haywood]
Let's! TV Play Futari wa PreCure MaxHeart Dance on the mat Let's go to MaxHeart (Japan) [TeamEurope, David Haywood]
Let's! TV Play Disney Characters Oto! Iro! Ton-Ton! Miracle Parade [TeamEurope, David Haywood]
Hello Kitty Piano PC (Japan) [TeamEurope, David Haywood]

hash/super_tv_pc_cart.xml

@@ -27,6 +27,8 @@ license:CC0-1.0
 		<part name="cart" interface="super_tv_pc_cart">
 			<dataarea name="prg" size="0x400000">
 				<rom name="c-02.u1" size="0x400000" crc="99fb0088" sha1="b46400c850b08abd5c8ee649f483e0694b3eb059" />
+				<!-- bypass EEPROM error until cart EEPROM is properly hooked up -->
+				<rom value="0xea" offset="0xd809" size="2" loadflag="fill" />
 			</dataarea>
 		</part>
 	</software>
@@ -38,7 +40,8 @@ license:CC0-1.0
 		<info name="alt_title" value="ダブルマウスパーティー" />
 		<part name="cart" interface="super_tv_pc_cart">
 			<dataarea name="prg" size="0x200000">
-				<rom name="c-03.u1" size="0x200000" crc="94634a7b" sha1="d69ec0a8c6061e749206927ee68dbcf852fcc03e" />
+				<!-- baddump because code seems to be corrupt in places -->
+				<rom name="c-03.u1" size="0x200000" crc="94634a7b" sha1="d69ec0a8c6061e749206927ee68dbcf852fcc03e" status="baddump" />
 			</dataarea>
 		</part>
 	</software>
@@ -51,6 +54,8 @@ license:CC0-1.0
 		<part name="cart" interface="super_tv_pc_cart">
 			<dataarea name="prg" size="0x400000">
 				<rom name="c-04.u1" size="0x400000" crc="89b6ef86" sha1="1af69047508fce08fa949a7d821255e306a329a3" />
+				<!-- bypass (invisible) EEPROM error until cart EEPROM is properly hooked up -->
+				<rom value="0xea" offset="0xd5fa" size="2" loadflag="fill" />		
 			</dataarea>
 		</part>
 	</software>

src/devices/bus/ekara/rom.cpp

@@ -117,12 +117,32 @@ void ekara_rom_i2c_base_device::write_bus_control(offs_t offset, uint8_t data)
 
 void ekara_rom_i2c_base_device::write_rom(offs_t offset, uint8_t data)
 {
-	logerror("ekara_rom_i2c_base_device::write_rom %08x %02x\n", offset, data);
+	if (is_write_access_not_rom())
+	{
+		if (offset == 0x3fffff)
+			write_extra(offset,data);
+		else
+			logerror("ekara_rom_i2c_base_device::write_rom %08x %02x\n", offset, data);
+	}
+	else
+	{
+		logerror("ekara_rom_i2c_base_device::write_rom %08x %02x\n", offset, data);
+	}
 }
 
 uint8_t ekara_rom_i2c_base_device::read_rom(offs_t offset)
 {
-	return m_rom[offset & (m_rom_size - 1)];
+	if (is_read_access_not_rom())
+	{
+		if (offset == 0x5fffff)
+			return read_extra(offset);
+		else
+			return m_rom[offset & (m_rom_size - 1)];
+	}
+	else
+	{
+		return m_rom[offset & (m_rom_size - 1)];
+	}
 }
 
 uint8_t ekara_rom_i2c_base_device::read_extra(offs_t offset)

src/devices/cpu/m6502/oxavix2000.lst

@@ -332,8 +332,10 @@ orapa_imp
 	prefetch();
 
 andpa_imp
-	fatalerror("unhandled opcode %02x%04x: %02x\n", m_codebank, PPC, inst_state);
 	read_pc();
+	TMP = read_full_data(m_pa);
+	A &= TMP;
+	set_nz(A);
 	prefetch();
 
 eorpa_imp
@@ -436,24 +438,27 @@ bit_xav_zpx
 	prefetch();
 
 bit_abx
-	fatalerror("unhandled opcode %02x%04x: %02x\n", m_codebank, PPC, inst_state);
-	read_pc();
+	TMP = read_pc();
+	PC++;
+	TMP = set_h(TMP, read_pc());
+	PC++;
+	TMP += X;
+	TMP2 = read(TMP);
+	do_bit(TMP2);
 	prefetch();
 
 bit_imm
 	TMP = read_pc();
 	PC++;
-	if(A & TMP)
-		P &= ~F_Z;
-	else
-		P |= F_Z;
+	do_bit(TMP);
 	prefetch();
 
 asr_xav_zpg
 	TMP = read_pc(); // TODO: verify this, should it write back or set A?
 	PC++;
 	TMP2 = read_zeropage(TMP);
 	do_asr(TMP2);
+	write_zeropage(TMP,TMP2);
 	prefetch();
 
 asr_aba
@@ -468,22 +473,39 @@ asr_aba
 	prefetch();
 
 asr_xav_zpx
-	fatalerror("unhandled opcode %02x%04x: %02x\n", m_codebank, PPC, inst_state);
+	TMP = read_pc();
 	read_pc();
+	PC++;
+	TMP = uint8_t(TMP+X);
+	TMP2 = read_zeropage(TMP);
+	read_zeropage((TMP+1) & 0xff);
+	TMP2 = do_asr(TMP2);
+	write_zeropage(TMP, TMP2);
 	prefetch();
 
 asr_acc
 	A = do_asr(A);
 	prefetch();
 
 asr_abx
-	fatalerror("unhandled opcode %02x%04x: %02x\n", m_codebank, PPC, inst_state);
-	read_pc();
+	TMP = read_pc();
+	PC++;
+	TMP = set_h(TMP, read_pc());
+	PC++;
+	read(set_l(TMP, TMP+X));
+	TMP += X;
+	TMP2 = read(TMP);
+	read(TMP);
+	TMP2 = do_asr(TMP2);
+	write(TMP, TMP2);
 	prefetch();
 
 cmc_imp
-	logerror("unhandled opcode %02x%04x: %02x\n", m_codebank, PPC, inst_state);
 	read_pc();
+	TMP = P & F_C;
+	P &= ~F_C;
+	TMP = ~TMP;
+	P |= TMP & F_C;
 	prefetch();
 
 sev_imp

src/devices/cpu/m6502/xavix.cpp

@@ -152,12 +152,12 @@ inline uint8_t xavix_device::read_full_data(uint8_t databank, uint16_t adr)
 		}
 		else
 		{
-			return m_extbus_space->read_byte((databank << 16) | adr);
+			return m_extbus_space->read_byte(((databank << 16) | adr) & 0x7fffff );
 		}
 	}
 	else
 	{
-		return m_extbus_space->read_byte((databank << 16) | adr);
+		return m_extbus_space->read_byte(((databank << 16) | adr) & 0x7fffff );
 	}
 }
 
@@ -257,12 +257,12 @@ inline void xavix_device::write_full_data(uint8_t databank, uint16_t adr, uint8_
 		}
 		else
 		{
-			m_extbus_space->write_byte((databank << 16) | adr, val);
+			m_extbus_space->write_byte(((databank << 16) | adr) & 0x7fffff, val);
 		}
 	}
 	else
 	{
-		m_extbus_space->write_byte((databank << 16) | adr, val);
+		m_extbus_space->write_byte(((databank << 16) | adr) & 0x7fffff, val);
 	}
 }
 

src/mame/mame.lst

@@ -46285,6 +46285,7 @@ tvpc_ham
 tvpc_tom
 
 @source:tvgames/xavix2.cpp
+ban_db2j
 ltv_naru                        //
 domfitad                        //
 dombikec                        //
@@ -46311,13 +46312,20 @@ ttv_sw                          //
 ttv_swj                         //
 
 @source:tvgames/xavix_2002.cpp
+anpanmdx
+apmj2009
+ban_dn1j
 ban_kksj
+epo_ntpj
 ban_ordj
 domdance                        //
 domfitch                        //
 domfitex                        //
 domstepc                        //
+doradraw
+epo_doka
 epo_tfit
+maxheart
 mrangbat
 suprtvpc
 suprtvpcdo