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konami/konmedalppc.cpp: Corrected ATA hookup, IDed game as "G1 Turf Wild 3". [R. Belmont, Windy Fairy]

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This commit is contained in:
arbee 2023-08-24 14:40:00 -04:00
parent f058e5649d
commit bc49f9786c
2 changed files with 32 additions and 12 deletions
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42
src/mame/konami/konmedalppc.cpp
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@ -2,6 +2,8 @@
// copyright-holders:R. Belmont
/*
Konami PowerPC medal hardware
G1 Turf Wild 3 (c) 2005 GSF51
*/
#include "emu.h"
@ -54,23 +56,41 @@ uint32_t konmedalppc_state::screen_update(screen_device &screen, bitmap_ind16 &b
return m_gcu->draw(screen, bitmap, cliprect);
}
// The code wants to read the ATA STATUS port (1F7 on a PC) at an offset of 6 (0x721001F6).
// so convert our offset back to the address and XOR to flip the endianness.
// This isn't exactly right, but it does pass the initial check.
/*
Offset 0 is the full 16 bits of ATA register 0 (1F0h on PC)
Offset 1 is ATA registers 2 & 3 (3322)
Offset 2 is ATA registers 4 & 5 (5544)
Offset 3 is ATA registers 6 & 7 (7766)
*/
u16 konmedalppc_state::ata_r(offs_t offset, u16 mem_mask)
{
offset <<= 1;
offset ^= 1;
if (offset == 0)
{
return m_ata->cs0_swap_r(offset, mem_mask);
}
return m_ata->cs0_swap_r(offset, mem_mask);
u16 result = m_ata->cs0_r((offset<<1) + 1, 0x00ff)<<8;
result |= m_ata->cs0_r(offset<<1, 0xff);
return result;
}
void konmedalppc_state::ata_w(offs_t offset, u16 data, u16 mem_mask)
{
offset <<= 1;
offset ^= 1;
if (offset == 0)
{
m_ata->cs0_swap_w(offset, data, mem_mask);
return;
}
m_ata->cs0_swap_w(offset, data, mem_mask);
if (ACCESSING_BITS_0_7)
{
m_ata->cs0_w(offset << 1, data & 0xff, 0xff);
}
if (ACCESSING_BITS_8_15)
{
m_ata->cs0_w((offset<<1) + 1, data>>8, 0xff);
}
}
void konmedalppc_state::main_map(address_map &map)
@ -137,7 +157,7 @@ void konmedalppc_state::konmedalppc(machine_config &config)
ymz.add_route(0, "rspeaker", 1.0);
}
ROM_START( konmdlunk )
ROM_START( turfwld3 )
ROM_REGION32_BE(0x80000, "program", 0) // PowerPC program ROMs
ROM_LOAD16_WORD_SWAP("a89-pce-b01.u2", 0x000000, 0x080000, CRC(3c5d44d4) SHA1(5ba46e3405b3c2ed5b4880abbbe557064b3492e9))
@ -150,4 +170,4 @@ ROM_END
} // Anonymous namespace
GAME(199?, konmdlunk, 0, konmedalppc, konmedalppc, konmedalppc_state, empty_init, ROT0, "Konami", "Unknown PowerPC Medal Game", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
GAME(2005, turfwld3, 0, konmedalppc, konmedalppc, konmedalppc_state, empty_init, ROT0, "Konami", "G1 Turf Wild 3", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)

2
src/mame/mame.lst
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@ -23795,7 +23795,7 @@ ymcapsul
pikkaric
@source:konami/konmedalppc.cpp
konmdlunk // GSF51 (c)????
turfwld3 // GSF51 (c) 2005 Konami
@source:konami/kontest.cpp
kontest // GX800 (c) 198? (Japan)