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new machines marked as NOT WORKING - Play TV Ping Pong [Sean Riddle] (#3173)

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* new machines marked as NOT WORKING - Play TV Ping Pong [Sean Riddle]

The code on this one is much closer to Taito Nostalgia, seemingly only using the callfar / returnfar extended opcodes, this further makes me think that XaviX Tennis is a Super XaviX title instead.

* some guesswork (nw)

* it sure *looks* like the dma (nw)
This commit is contained in:
David Haywood 2018-02-06 21:51:41 +00:00 committed by R. Belmont
parent 065879af71
commit 37fa0f6d29
2 changed files with 235 additions and 4 deletions
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238
src/mame/drivers/xavix.cpp
View File

@ -68,12 +68,45 @@ public:
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void xavix(machine_config &config);
DECLARE_WRITE8_MEMBER(xavix_7900_w);
DECLARE_WRITE8_MEMBER(xavix_7980_w);
DECLARE_WRITE8_MEMBER(xavix_7981_w);
DECLARE_WRITE8_MEMBER(xavix_7982_w);
DECLARE_WRITE8_MEMBER(xavix_7983_w);
DECLARE_WRITE8_MEMBER(xavix_7984_w);
DECLARE_WRITE8_MEMBER(xavix_7985_w);
DECLARE_WRITE8_MEMBER(xavix_7986_w);
DECLARE_WRITE8_MEMBER(xavix_7987_w);
DECLARE_READ8_MEMBER(xavix_7980_r);
DECLARE_WRITE8_MEMBER(xavix_7ff9_w);
DECLARE_WRITE8_MEMBER(xavix_7ffa_w);
DECLARE_WRITE8_MEMBER(xavix_7ffb_w);
DECLARE_WRITE8_MEMBER(xavix_7ffe_w);
DECLARE_WRITE8_MEMBER(xavix_7fff_w);
protected:
// driver_device overrides
virtual void machine_start() override;
virtual void machine_reset() override;
virtual void video_start() override;
private:
uint8_t m_xavix_7981_data;
uint8_t m_xavix_7982_data;
uint8_t m_xavix_7983_data;
uint8_t m_xavix_7984_data;
uint8_t m_xavix_7985_data;
uint8_t m_xavix_7986_data;
uint8_t m_xavix_7987_data;
};
void xavix_state::video_start()
@ -85,8 +118,182 @@ uint32_t xavix_state::screen_update( screen_device &screen, bitmap_ind16 &bitmap
return 0;
}
WRITE8_MEMBER(xavix_state::xavix_7980_w)
{
logerror("%s: xavix_7980_w %02x (79xx unk trigger for 7981-7987?)\n", machine().describe_context(), data);
uint32_t source = (m_xavix_7983_data << 16) | (m_xavix_7982_data<<8) | m_xavix_7981_data;
uint16_t dest = (m_xavix_7985_data<<8) | m_xavix_7984_data;
uint16_t len = (m_xavix_7987_data<<8) | m_xavix_7986_data;
// TODO: don't do tag lookups here once satisfied this is correct
const uint32_t rgnlen = memregion("bios")->bytes();
uint8_t *rgn = memregion("bios")->base();
source &= rgnlen-1;
logerror(" (possible DMA op SRC %08x DST %04x LEN %04x)\n", source, dest, len);
address_space& destspace = m_maincpu->space(AS_PROGRAM);
for (int i = 0; i < len; i++)
{
uint8_t dat = rgn[(source + i) & (rgnlen-1)];
destspace.write_byte(dest + i, dat);
}
}
WRITE8_MEMBER(xavix_state::xavix_7981_w)
{
logerror("%s: xavix_7981_w %02x (79xx unk triplet byte 1)\n", machine().describe_context(), data);
m_xavix_7981_data = data;
}
WRITE8_MEMBER(xavix_state::xavix_7982_w)
{
logerror("%s: xavix_7982_w %02x (79xx unk triplet byte 2)\n", machine().describe_context(), data);
m_xavix_7982_data = data;
}
WRITE8_MEMBER(xavix_state::xavix_7983_w)
{
logerror("%s: xavix_7983_w %02x (79xx unk triplet byte 3)\n", machine().describe_context(), data);
m_xavix_7983_data = data;
// this would mean Taito Nostalgia relies on mirroring tho, as it has the high bits set... so could just be wrong
logerror(" (possible DMA ROM source of %02x%02x%02x)\n", m_xavix_7983_data, m_xavix_7982_data, m_xavix_7981_data);
}
WRITE8_MEMBER(xavix_state::xavix_7984_w)
{
logerror("%s: xavix_7984_w %02x (79xx unk pair 1 byte 1)\n", machine().describe_context(), data);
m_xavix_7984_data = data;
}
WRITE8_MEMBER(xavix_state::xavix_7985_w)
{
logerror("%s: xavix_7985_w %02x (79xx unk pair 1 byte 2)\n", machine().describe_context(), data);
m_xavix_7985_data = data;
logerror(" (possible DMA dest of %02x%02x)\n", m_xavix_7985_data, m_xavix_7984_data);
}
WRITE8_MEMBER(xavix_state::xavix_7986_w)
{
logerror("%s: xavix_7986_w %02x (79xx unk pair 2 byte 1)\n", machine().describe_context(), data);
m_xavix_7986_data = data;
}
WRITE8_MEMBER(xavix_state::xavix_7987_w)
{
logerror("%s: xavix_7987_w %02x (79xx unk pair 2 byte 2)\n", machine().describe_context(), data);
m_xavix_7987_data = data;
logerror(" (possible DMA len of %02x%02x)\n", m_xavix_7987_data, m_xavix_7986_data);
}
READ8_MEMBER(xavix_state::xavix_7980_r)
{
logerror("%s: xavix_7980_r (79xx unk operation status?)\n", machine().describe_context());
return 0x00;
}
WRITE8_MEMBER(xavix_state::xavix_7ff9_w)
{
logerror("%s: xavix_7ff9_w %02x (trigger for 7ffx region?)\n", machine().describe_context(), data);
}
WRITE8_MEMBER(xavix_state::xavix_7ffa_w)
{
logerror("%s: xavix_7ffa_w %02x (7ffx pair 1, byte 1?)\n", machine().describe_context(), data);
}
WRITE8_MEMBER(xavix_state::xavix_7ffb_w)
{
logerror("%s: xavix_7ffb_w %02x (7ffx pair 1, byte 2?)\n", machine().describe_context(), data);
}
WRITE8_MEMBER(xavix_state::xavix_7ffe_w)
{
logerror("%s: xavix_7ffe_w %02x (7ffx pair 2, byte 1?)\n", machine().describe_context(), data);
}
WRITE8_MEMBER(xavix_state::xavix_7fff_w)
{
logerror("%s: xavix_7fff_w %02x (7ffx pair 2, byte 2?)\n", machine().describe_context(), data);
}
WRITE8_MEMBER(xavix_state::xavix_7900_w)
{
logerror("%s: xavix_7900_w %02x (---FIRST WRITE ON STARTUP---)\n", machine().describe_context(), data);
}
static ADDRESS_MAP_START( xavix_map, AS_PROGRAM, 8, xavix_state )
AM_RANGE(0x000000, 0x0001ff) AM_RAM
AM_RANGE(0x000200, 0x003fff) AM_RAM // ends up jumping to code here? must be a DMA?
AM_RANGE(0x006200, 0x0062ff) AM_RAM // cleared to 0x80
AM_RANGE(0x006900, 0x006900) AM_WRITENOP // startup (taitons1)
AM_RANGE(0x006fc0, 0x006fc0) AM_WRITENOP // startup
AM_RANGE(0x006fd8, 0x006fd8) AM_WRITENOP // startup (taitons1)
AM_RANGE(0x006fe9, 0x006fe9) AM_WRITENOP // startup
AM_RANGE(0x006ff1, 0x006ff1) AM_WRITENOP // startup (taitons1)
AM_RANGE(0x006ff8, 0x006ff8) AM_READNOP AM_WRITENOP // startup
// taitons1 after 75f7/75f8
//AM_RANGE(0x0075f6, 0x0075f6) AM_WRITE(xavix_75f6_w)
// taitons1 written as a pair
//AM_RANGE(0x0075f7, 0x0075f7) AM_WRITE(xavix_75f7_w)
//AM_RANGE(0x0075f8, 0x0075f8) AM_WRITE(xavix_75f8_w)
// taitons1 written after 75f6, then read
//AM_RANGE(0x0075f9, 0x0075f9) AM_READWRITE(xavix_75f9_r, xavix_75f9_w)
// taitons1 written other 75xx operations
//AM_RANGE(0x0075ff, 0x0075ff) AM_WRITE(xavix_75ff_w)
AM_RANGE(0x007810, 0x007810) AM_WRITENOP // startup
AM_RANGE(0x007900, 0x007900) AM_WRITE(xavix_7900_w) // startup
AM_RANGE(0x007902, 0x007902) AM_WRITENOP // startup
// possible trigger for below (written after the others) waits on status of bit 1 in a loop
AM_RANGE(0x007980, 0x007980) AM_READWRITE(xavix_7980_r, xavix_7980_w)
// seem to be a triplet?
AM_RANGE(0x007981, 0x007981) AM_WRITE(xavix_7981_w)
AM_RANGE(0x007982, 0x007982) AM_WRITE(xavix_7982_w)
AM_RANGE(0x007983, 0x007983) AM_WRITE(xavix_7983_w)
// seem to be a pair
AM_RANGE(0x007984, 0x007984) AM_WRITE(xavix_7984_w)
AM_RANGE(0x007985, 0x007985) AM_WRITE(xavix_7985_w)
// seem to be a pair
AM_RANGE(0x007986, 0x007986) AM_WRITE(xavix_7986_w)
AM_RANGE(0x007987, 0x007987) AM_WRITE(xavix_7987_w)
AM_RANGE(0x007a00, 0x007a00) AM_READNOP // startup (taitons1)
AM_RANGE(0x007a01, 0x007a01) AM_READNOP // startup (taitons1)
AM_RANGE(0x007a03, 0x007a03) AM_READNOP AM_WRITENOP // startup
// again possible trigger for below, written after them
AM_RANGE(0x007ff9, 0x007ff9) AM_WRITE(xavix_7ff9_w)
// also seems to be a pair
AM_RANGE(0x007ffa, 0x007ffa) AM_WRITE(xavix_7ffa_w)
AM_RANGE(0x007ffb, 0x007ffb) AM_WRITE(xavix_7ffb_w)
// also seems to be a pair
AM_RANGE(0x007ffe, 0x007ffe) AM_WRITE(xavix_7ffe_w)
AM_RANGE(0x007fff, 0x007fff) AM_WRITE(xavix_7fff_w)
AM_RANGE(0x008000, 0x1fffff) AM_ROM AM_REGION("bios", 0x008000)
ADDRESS_MAP_END
@ -169,6 +376,15 @@ void xavix_state::machine_start()
void xavix_state::machine_reset()
{
m_xavix_7981_data = 0;
m_xavix_7982_data = 0;
m_xavix_7983_data = 0;
m_xavix_7984_data = 0;
m_xavix_7985_data = 0;
m_xavix_7986_data = 0;
m_xavix_7987_data = 0;
}
@ -209,6 +425,11 @@ ROM_START( taitons1 )
ROM_LOAD( "taitonostalgia1.u3", 0x000000, 0x200000, CRC(25bd8c67) SHA1(a109cd2da6aa4596e3ca3abd1afce2d0001a473f) )
ROM_END
ROM_START( rad_ping )
ROM_REGION( 0x200000, "bios", ROMREGION_ERASE00 )
ROM_LOAD( "pingpong.bin", 0x000000, 0x100000, CRC(629f7f47) SHA1(2bb19fd202f1e6c319d2f7d18adbfed8a7669235) )
ROM_END
ROM_START( xavtenni )
ROM_REGION( 0x800000, "bios", ROMREGION_ERASE00 )
ROM_LOAD( "xavixtennis.bin", 0x000000, 0x800000, CRC(23a1d918) SHA1(2241c59e8ea8328013e55952ebf9060ea0a4675b) )
@ -217,14 +438,23 @@ ROM_END
/* The 'XaviXPORT' isn't a real console, more of a TV adapter, all the actual hardware (CPU including video hw, sound hw) is in the cartridges and controllers
and can vary between games, see notes at top of driver.
XaviX Tennis should be a standard XaviX CPU, but at the very least makes significantly more use of custom opcodes than Taito Nostalgia 1 which only appears
to use the call far / return far for extended memory space. It also seems to require some regular 6502 opcodes to be replaced with custom ones, yet Taito
Nostalgia appears to use them in their normal form; either there's some kind of mode switch, or XaviX Tennis is a different CPU type.
According to sources XaviX Tennis should be a standard XaviX CPU, but at the very least makes significantly more use of custom opcodes than Taito Nostalgia
and Radica Ping Pong which only appears to use the call far / return far for extended memory space.
Furthermore it also seems to require some regular 6502 opcodes to be replaced with custom ones, yet the other games expect these to act normally. This
leads me to believe that XaviX Tennis is more likely to be a Super XaviX title.
The CPU die on XaviX Tennis is internally marked as NEC 85054-611
*/
CONS( 2004, xavtenni, 0, 0, xavix, xavix, xavix_state, 0, "SSD Company LTD", "XaviX Tennis (XaviXPORT)", MACHINE_IS_SKELETON )
// standalone TV games
/* Standalone TV Games
These all have jumps to the 3xxx region, which appears to be RAM (or possibly a banked space?) hopefully it's just missing some kind of DMA transfer and
isn't some additional internal ROM.
*/
CONS( 2006, taitons1, 0, 0, xavix, xavix, xavix_state, 0, "Bandai / SSD Company LTD / Taito", "Let's! TV Play Classic - Taito Nostalgia 1", MACHINE_IS_SKELETON )
CONS( 2000, rad_ping, 0, 0, xavix, xavix, xavix_state, 0, "Radica / SSD Company LTD / Simmer Technology", "Play TV Ping Pong", MACHINE_IS_SKELETON ) // "Simmer Technology" is also known as "Hummer Technology Co., Ltd"

1
src/mame/mame.lst
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@ -38919,6 +38919,7 @@ xsleenaj // TA-0019 (c) 1986
@source:xavix.cpp
taitons1 //
xavtenni //
rad_ping //
@source:xbox.cpp
xbox //