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sega/sms_bootleg.cpp: rewrite and simplify banking, allows Hello Kang Si and Buk Doo Sun to boot

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This commit is contained in:
angelosa 2023-11-25 00:39:53 +01:00
parent 9cfb9e6752
commit 17cdb6de2e
1 changed files with 72 additions and 65 deletions
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137
src/mame/sega/sms_bootleg.cpp
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@ -1,5 +1,5 @@
// license:BSD-3-Clause
// copyright-holders:David Haywood
// copyright-holders:David Haywood, Angelo Salese
/*
@ -7,20 +7,17 @@
for Sono Corp Japan
----------------------------------
this is an SMS multi-game bootleg with 32 games
these are SMS multi-game bootlegs with 32 games.
Some of these sets are actually hacked versions
cfr. ALex Kidd with autofire or Solomon's Key title (that actually hasn't been released outside Japan)
TODO:
smssgame
|# | game name | mapper | QA notes |
|--|--|--|--|
|01| Super Bubble | 08| |
|02| Tetris | 01| |
|03| Wonder Boy | 00| |
|04| Alex Kidd | 82| |
|05| Super Mario | 02| accesses $8000-$bfff |
|06| Hello Kang Si| 02| boots as Ghost House |
|07| Solomon Key | 84| |
|08| Buk Doo Gun | 02| boots as Lode Runner |
- 01 Super Bubble: writes 0x08 to $fffe, likely shuffles banks around.
- 05 Super Mario: crashes, seemingly expects $8000-$bfff to be a copy of $0000-$3fff, open bus?
- 29 Goonies: either boots (with bad title screen GFXs) or outright crashes (similar to Super Mario?)
- SG-1000 "newer" conversions all sports dimmed main sprite, cfr. 15 Bomb Jack or 20 Pitfall II
smssgamea
- Different banking, TBD
@ -263,8 +260,7 @@ public:
smsbootleg_state(const machine_config &mconfig, device_type type, const char *tag)
: sms_state(mconfig, type, tag)
, m_rom_view(*this, "rom_view")
, m_game_bank(*this, "game_bank")
, m_sub_bank(*this, "sub_bank")
, m_game_bank(*this, "game_bank%u", 1U)
, m_game_data(*this, "game_data")
{}
@ -276,14 +272,14 @@ protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
virtual void refresh_banks();
memory_view m_rom_view;
required_memory_bank m_game_bank;
required_memory_bank m_sub_bank;
required_memory_bank_array<3> m_game_bank;
required_memory_region m_game_data;
u8 m_rom_select = 0;
u8 m_sub_bank_mailbox = 0;
private:
void port08_w(uint8_t data);
void port18_w(uint8_t data);
@ -295,27 +291,44 @@ private:
void smsbootleg_state::machine_start()
{
sms_state::machine_start();
m_game_bank->configure_entries(0, 0x40, m_game_data->base(), 0x8000);
m_sub_bank->configure_entries(0, 0x80, m_game_data->base(), 0x4000);
for (auto &bank : m_game_bank)
bank->configure_entries(0, 0x80 * 4, m_game_data->base(), 0x4000);
}
void smsbootleg_state::machine_reset()
{
sms_state::machine_reset();
m_rom_view.select(0);
m_game_bank->set_entry(0);
m_sub_bank_mailbox = 2;
m_sub_bank->set_entry(2);
for (auto &bank : m_game_bank)
bank->set_entry(0);
m_sub_bank_mailbox = 0;
}
// TODO: different for smssgamea, to be virtualized later
void smsbootleg_state::refresh_banks()
{
const u16 base_rom_bank = ((m_rom_select & 0xf) << 5) + ((m_rom_select & 0xf0) >> 3);
const u8 sub_bank = m_sub_bank_mailbox & 0xf;
LOG("$0000-$7fff %08x $8000-$bfff %08x\n"
, base_rom_bank * 0x4000
, (base_rom_bank + sub_bank) * 0x4000
);
m_game_bank[0]->set_entry(base_rom_bank);
m_game_bank[1]->set_entry(base_rom_bank + 1);
// TODO: Goonies and Super Mario
// (expects a default bank of 0 here, is bit 7 set a signal for bank unlock?)
m_game_bank[2]->set_entry(base_rom_bank + sub_bank);
}
void smsbootleg_state::sms_supergame_map(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0xbfff).view(m_rom_view);
map(0x0000, 0xfff7).view(m_rom_view);
m_rom_view[0](0x0000, 0xbfff).rom().region("maincpu", 0);
m_rom_view[1](0x0000, 0x7fff).bankr("game_bank");
m_rom_view[1](0x8000, 0xbfff).bankr("sub_bank");
m_rom_view[1](0x0000, 0x3fff).bankr("game_bank1");
m_rom_view[1](0x4000, 0x7fff).bankr("game_bank2");
m_rom_view[1](0x8000, 0xbfff).bankr("game_bank3");
map(0xc000, 0xfff7).ram();
// map(0xfffc, 0xffff).rw(FUNC(smsbootleg_state::sms_mapper_r), FUNC(smsbootleg_state::sms_mapper_w)); // Bankswitch control
map(0xfffe, 0xfffe).lw8(
@ -331,25 +344,18 @@ void smsbootleg_state::sms_supergame_map(address_map &map)
}),
NAME([this] (u8 data) {
m_sub_bank_mailbox = data;
// Need to clamp for Tetris (which goes out of bounds?)
// TODO: Super Mario broke with this (is bit 7 a modifier?)
// Solomon Key relies on being able to set bank independent from bit 7 ...
const u8 bank_num = std::min(0x7f, (m_rom_select << 1) + (data & 0xf));
m_sub_bank->set_entry(bank_num);
LOG("map $ffff: %02x\n", data);
refresh_banks();
})
);
}
// this port is likely disabled when booting into games
void smsbootleg_state::port08_w(uint8_t data)
{
// logerror("port08_w %02x\n", data);
// m_bank->set_entry(BIT(data, 3));
// TODO: different for smssgamea
m_rom_select = bitswap<6>(data & 0x3f, 3, 2, 1, 0, 5, 4);
m_rom_select += ((data >> 6) & 3) << 2;
LOG("I/O $08: %02x %08x\n", data, m_rom_select * 0x8000);
m_game_bank->set_entry(m_rom_select & 0x3f);
m_sub_bank->set_entry(m_rom_select << 1);
m_rom_select = data;
LOG("I/O $08: %02x\n", data);
refresh_banks();
}
void smsbootleg_state::port18_w(uint8_t data)
@ -497,25 +503,26 @@ ROM_START( smssgame )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "rom1.bin", 0x00000, 0x10000, CRC(0e1f258e) SHA1(9240dc0d01e3061c0c8807c07c0a1d033ebe9116) ) // yes, this rom is smaller (menu rom)
ROM_REGION( 0x200000, "game_data", ROMREGION_ERASEFF )
ROM_REGION( 0x800000, "game_data", ROMREGION_ERASEFF )
ROM_LOAD( "k2.bin", 0x000000, 0x20000, CRC(a12439f4) SHA1(e957d4fe275e982bedef28af8cc2957da27dc512) ) // Final Bubble Bobble (1/2)
ROM_LOAD( "k1.bin", 0x020000, 0x20000, CRC(dadffecd) SHA1(68ebb968539049a9e193da5200856b9f956f7e02) ) // Final Bubble Bobble (2/2)
ROM_LOAD( "k3.bin", 0x040000, 0x20000, CRC(9bb92096) SHA1(3ca17b7a9aa20b97cac1f78ba13f70bed1b37463) ) // Solomon's Key
ROM_LOAD( "k4.bin", 0x060000, 0x20000, CRC(e5903942) SHA1(d0c02f4b37c8a02142868459af14ba8ed0340ccd) ) // Magical Tree / Chustle Chumy / Congo Bongo / Charlie Circus
ROM_LOAD( "k5.bin", 0x080000, 0x20000, CRC(a7b64d1c) SHA1(7c37ac3f37699c49492d4f4ea4e213670413041c) ) // Flicky / Galaxian / King's Valley / Pippos
ROM_LOAD( "k6.bin", 0x0a0000, 0x20000, CRC(d78ce5ba) SHA1(06065cec3865ff3a2bb2f56702b24427487964e2) ) // Dragon Story / Spy Vs Spy / Teddyboy Blues / Pitfall II
ROM_LOAD( "k7.bin", 0x0c0000, 0x20000, CRC(d24da417) SHA1(2ef5e55748e412157e55e7a62355fd66bf792d8e) ) // Drol / Pit Pot / Hyper Sports II / Super Tank
ROM_LOAD( "k8.bin", 0x0e0000, 0x20000, CRC(eb1e8693) SHA1(3283cdcfc25f34a43f317093cd39e10a52bc3ae7) ) // Alex Kidd in Miracle World
ROM_LOAD( "rom2.bin",0x100000, 0x20000, CRC(c1478323) SHA1(27b524a234f072e81ef41fb89a5fff5617e9b951) ) // Buk Doo Sun
ROM_LOAD( "rom3.bin",0x120000, 0x20000, CRC(96c8705d) SHA1(ba4f4af0cfdad1d63a08201ed186c79aea062b95) ) // ? Kung Fu game (Hello Kang Si?)
// this mask rom appears to be taken straight from an SMS multi-game cart, bank 0 of it is even a menu just for the games in this ROM! same style, so presumably the same developer (Seo Jin 1990 copyright)
ROM_LOAD( "sg11004a 79st0086end 9045.rom4",0x180000, 0x080000, CRC(cdbfe86e) SHA1(83d6f261471dca20f8d2e33b9807d670e9b4eb9c) ) // Invaders, Astro, Super Mario, Ghost House, Bomb Jack, Galaga, Goonies, Road Runner I, Road Fighter, Tetris, Wonder Boy
ROM_LOAD( "k1.bin", 0x080000, 0x20000, CRC(dadffecd) SHA1(68ebb968539049a9e193da5200856b9f956f7e02) ) // Final Bubble Bobble (2/2)
ROM_LOAD( "k3.bin", 0x100000, 0x20000, CRC(9bb92096) SHA1(3ca17b7a9aa20b97cac1f78ba13f70bed1b37463) ) // Solomon's Key
ROM_LOAD( "k4.bin", 0x180000, 0x20000, CRC(e5903942) SHA1(d0c02f4b37c8a02142868459af14ba8ed0340ccd) ) // Magical Tree / Chustle Chumy / Congo Bongo / Charlie Circus
ROM_LOAD( "k5.bin", 0x200000, 0x20000, CRC(a7b64d1c) SHA1(7c37ac3f37699c49492d4f4ea4e213670413041c) ) // Flicky / Galaxian / King's Valley / Pippos
ROM_LOAD( "k6.bin", 0x280000, 0x20000, CRC(d78ce5ba) SHA1(06065cec3865ff3a2bb2f56702b24427487964e2) ) // Dragon Story / Spy Vs Spy / Teddyboy Blues / Pitfall II
ROM_LOAD( "k7.bin", 0x300000, 0x20000, CRC(d24da417) SHA1(2ef5e55748e412157e55e7a62355fd66bf792d8e) ) // Drol / Pit Pot / Hyper Sports II / Super Tank
ROM_LOAD( "k8.bin", 0x380000, 0x20000, CRC(eb1e8693) SHA1(3283cdcfc25f34a43f317093cd39e10a52bc3ae7) ) // Alex Kidd in Miracle World
// k12 unpopulated
// k11 unpopulated
// k10 unpopulated
// k9 unpopulated
// this mask rom appears to be taken straight from an SMS multi-game cart, bank 0 of it is even a menu just for the games in this ROM! same style, so presumably the same developer (Seo Jin 1990 copyright)
ROM_LOAD( "sg11004a 79st0086end 9045.rom4",0x600000, 0x080000, CRC(cdbfe86e) SHA1(83d6f261471dca20f8d2e33b9807d670e9b4eb9c) ) // Invaders, Astro, Super Mario, Ghost House, Bomb Jack, Galaga, Goonies, Road Runner I, Road Fighter, Tetris, Wonder Boy
ROM_LOAD( "rom3.bin",0x680000, 0x20000, CRC(96c8705d) SHA1(ba4f4af0cfdad1d63a08201ed186c79aea062b95) ) // ? Kung Fu game (Hello Kang Si?)
ROM_LOAD( "rom2.bin",0x700000, 0x20000, CRC(c1478323) SHA1(27b524a234f072e81ef41fb89a5fff5617e9b951) ) // Buk Doo Sun
// there seems to be some kind of MCU for the timer?
ROM_END
@ -524,21 +531,21 @@ ROM_START( smssgamea )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD( "02.k2", 0x000000, 0x10000, CRC(66ed320e) SHA1(e838cb98fbd295259707f8f7ce433b28baa846e3) ) // menu is here on this one
ROM_REGION( 0x200000, "game_data", ROMREGION_ERASEFF )
ROM_REGION( 0x800000, "game_data", ROMREGION_ERASEFF )
ROM_LOAD( "01.k1", 0x000000, 0x20000, CRC(18fd8607) SHA1(f24fbe863e19b513369858bf1260355e92444071) ) // Tri-Formation
ROM_LOAD( "03.k3", 0x020000, 0x20000, CRC(9bb92096) SHA1(3ca17b7a9aa20b97cac1f78ba13f70bed1b37463) ) // Solomon's Key
ROM_LOAD( "04.k4", 0x040000, 0x20000, CRC(28f6f4a9) SHA1(87809d93b8393b3186672c217fa1dec8b152af16) ) // Maisc Tree, Mouse, Invaders, Astro
ROM_LOAD( "05.k5", 0x060000, 0x20000, CRC(350591a4) SHA1(ceb3c4a0fc85c5fbc5a045e9c83c3e7ec4d535cc) ) // Congo Bongo, Circus, Super Mario, Ghost House
ROM_LOAD( "06.k6", 0x080000, 0x20000, CRC(9c5e7cc7) SHA1(4613928e30b7faaa41d550fa41906e13a6059513) ) // Flicky, Galaxian, Bomb Jack, Galaga
ROM_LOAD( "07.k7", 0x0a0000, 0x20000, CRC(8046a2c0) SHA1(c80298dd56db8c09cac5263e4c01a627ab1a4cda) ) // Kings Vally, Pippols, Goonies, Road Runner I
ROM_LOAD( "08.k8", 0x0c0000, 0x20000, CRC(ee366e0f) SHA1(3770aa71372e7dbdfd357b239a0fbdf8880dc135) ) // Dragon Story, Spy Vs Spy, Road Fighter
ROM_LOAD( "09.k9", 0x0e0000, 0x20000, CRC(50a66ef6) SHA1(8eb8d1a7ecca99d1722534be269a6264d49b9dd4) ) // Tetris, Teddy Boy, Pitfall 2
ROM_LOAD( "10.k10", 0x100000, 0x10000, CRC(ca7ab2df) SHA1(11a85f03ec21d481c5cdfcfb749da20b8569d09a) ) // Drol, Pit Pot
ROM_LOAD( "11.k11", 0x120000, 0x10000, CRC(b03b612f) SHA1(537b7d72e1e06e17db6206a37f2480c14f46b9fc) ) // Hyper Sports, Super Tank
ROM_LOAD( "12.k12", 0x140000, 0x20000, CRC(eb1e8693) SHA1(3283cdcfc25f34a43f317093cd39e10a52bc3ae7) ) // Alex Kidd
ROM_LOAD( "13.rom4", 0x160000, 0x20000, CRC(8767f1c9) SHA1(683cedb001e859c2c7ccde2571104f1eb9f09c2f) ) // Wonderboy
ROM_LOAD( "14.rom3", 0x180000, 0x20000, CRC(889bb269) SHA1(0a92b339c19240bfea29ee24fee3e7d780b0cd5c) ) // Hello Kang Si
ROM_LOAD( "15.rom2", 0x1a0000, 0x20000, CRC(c1478323) SHA1(27b524a234f072e81ef41fb89a5fff5617e9b951) ) // Buk Doo Gun
ROM_LOAD( "03.k3", 0x080000, 0x20000, CRC(9bb92096) SHA1(3ca17b7a9aa20b97cac1f78ba13f70bed1b37463) ) // Solomon's Key
ROM_LOAD( "04.k4", 0x100000, 0x20000, CRC(28f6f4a9) SHA1(87809d93b8393b3186672c217fa1dec8b152af16) ) // Maisc Tree, Mouse, Invaders, Astro
ROM_LOAD( "05.k5", 0x180000, 0x20000, CRC(350591a4) SHA1(ceb3c4a0fc85c5fbc5a045e9c83c3e7ec4d535cc) ) // Congo Bongo, Circus, Super Mario, Ghost House
ROM_LOAD( "06.k6", 0x200000, 0x20000, CRC(9c5e7cc7) SHA1(4613928e30b7faaa41d550fa41906e13a6059513) ) // Flicky, Galaxian, Bomb Jack, Galaga
ROM_LOAD( "07.k7", 0x280000, 0x20000, CRC(8046a2c0) SHA1(c80298dd56db8c09cac5263e4c01a627ab1a4cda) ) // Kings Vally, Pippols, Goonies, Road Runner I
ROM_LOAD( "08.k8", 0x300000, 0x20000, CRC(ee366e0f) SHA1(3770aa71372e7dbdfd357b239a0fbdf8880dc135) ) // Dragon Story, Spy Vs Spy, Road Fighter
ROM_LOAD( "09.k9", 0x380000, 0x20000, CRC(50a66ef6) SHA1(8eb8d1a7ecca99d1722534be269a6264d49b9dd4) ) // Tetris, Teddy Boy, Pitfall 2
ROM_LOAD( "10.k10", 0x400000, 0x10000, CRC(ca7ab2df) SHA1(11a85f03ec21d481c5cdfcfb749da20b8569d09a) ) // Drol, Pit Pot
ROM_LOAD( "11.k11", 0x480000, 0x10000, CRC(b03b612f) SHA1(537b7d72e1e06e17db6206a37f2480c14f46b9fc) ) // Hyper Sports, Super Tank
ROM_LOAD( "12.k12", 0x500000, 0x20000, CRC(eb1e8693) SHA1(3283cdcfc25f34a43f317093cd39e10a52bc3ae7) ) // Alex Kidd
ROM_LOAD( "13.rom4", 0x580000, 0x20000, CRC(8767f1c9) SHA1(683cedb001e859c2c7ccde2571104f1eb9f09c2f) ) // Wonderboy
ROM_LOAD( "14.rom3", 0x600000, 0x20000, CRC(889bb269) SHA1(0a92b339c19240bfea29ee24fee3e7d780b0cd5c) ) // Hello Kang Si
ROM_LOAD( "15.rom2", 0x680000, 0x20000, CRC(c1478323) SHA1(27b524a234f072e81ef41fb89a5fff5617e9b951) ) // Buk Doo Gun
// ROM_FILL( 0x200000, 0x80000, 0xff) // ROM1 position not populated
// there seems to be some kind of MCU for the timer?