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kinst: add preliminary screen raw params

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This commit is contained in:
hap 2021-09-08 16:15:12 +02:00
parent 0086f32087
commit adc77d82c1
1 changed files with 29 additions and 35 deletions
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64
src/mame/drivers/kinst.cpp
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@ -2,19 +2,31 @@
// copyright-holders:Aaron Giles
/***************************************************************************
Killer Instinct hardware
Killer Instinct hardware
driver by Aaron Giles and Bryan McPhail
driver by Aaron Giles and Bryan McPhail
Games supported:
* Killer Instinct
* Killer Instinct 2
Games supported:
- Killer Instinct
- Killer Instinct 2
Known bugs:
* the SRAM test fails in diagnostics; this is due to the fact that
the test relies on executing out of the cache while it tromps
over (and eventually restores) the instructions it is executing;
this will likely never be fixed
Game by Rare, manufacturing/publishing by Midway.
Nintendo was just the owner of the Killer Instinct trademark, and licensor
of the "Ultra 64" arcade games.
TODO:
- The SRAM test fails in diagnostics; this is due to the fact that the test
relies on executing out of the cache while it tromps over (and eventually
restores) the instructions it is executing; this will likely never be fixed.
- Bootup sequence (the blue color fill) is too fast, which in turn causes
attract mode music not to play. Maybe the main CPU is running at a lower
clockspeed at boot (50MHz/4 seems plausible), but then, what toggles it?
- Screen timing (not just H and V freq). 261 lines should be good, but pixel
clock is unknown. The only one that comes close to sensible values is 6MHz,
yet there is no (multiple of) 6MHz XTAL.
15384.6 / 58.9634 = 260.9178 (261 lines? howcome it's off by 0.1?)
15384.6 * 325 = 4999995 (nope, 5 clocks hblank/hsync is too short)
15384.6 * 390 = 5999994
****************************************************************************
@ -235,7 +247,6 @@ private:
required_region_ptr<uint32_t> m_rombase;
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
INTERRUPT_GEN_MEMBER(irq0_start);
uint32_t ide_extra_r();
void ide_extra_w(uint32_t data);
@ -377,19 +388,6 @@ uint32_t kinst_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
/*************************************
*
* Interrupt handling
*
*************************************/
INTERRUPT_GEN_MEMBER(kinst_state::irq0_start)
{
m_maincpu->pulse_input_line(0, attotime::from_usec(50));
}
/*************************************
*
* IDE controller access
@ -699,18 +697,14 @@ void kinst_state::kinst(machine_config &config)
m_maincpu->set_icache_size(16384);
m_maincpu->set_dcache_size(16384);
m_maincpu->set_addrmap(AS_PROGRAM, &kinst_state::kinst_map);
m_maincpu->set_vblank_int("screen", FUNC(kinst_state::irq0_start));
ATA_INTERFACE(config, m_ata).options(ata_devices, "hdd", nullptr, true);
m_ata->irq_handler().set_inputline("maincpu", 1);
m_ata->irq_handler().set_inputline(m_maincpu, 1);
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_video_attributes(VIDEO_UPDATE_BEFORE_VBLANK);
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); // not accurate
screen.set_size(320, 240);
screen.set_visarea(0, 319, 0, 239);
screen.set_raw(6000000, 390, 0, 320, 261, 0, 240); // preliminary
screen.screen_vblank().set_inputline(m_maincpu, 0);
screen.set_screen_update(FUNC(kinst_state::screen_update));
PALETTE(config, m_palette, palette_device::BGR_555);
@ -858,7 +852,7 @@ void kinst_state::init_kinst2()
// versions selectable by changing bioses
// YEAR NAME PARENT MACHINE INPUT CLASS INIT SCREEN COMPANY FULLNAME FLAGS
GAME( 1994, kinst, 0, kinst, kinst, kinst_state, init_kinst, ROT0, "Rare", "Killer Instinct", MACHINE_SUPPORTS_SAVE )
GAME( 1996, kinst2, 0, kinst2, kinst2, kinst_state, init_kinst2, ROT0, "Rare", "Killer Instinct 2", MACHINE_SUPPORTS_SAVE )
GAME( 1996, kinst2uk, kinst2, kinst2uk, kinst2, kinst2uk_state, init_kinst2, ROT0, "Rare", "Killer Instinct 2 (upgrade kit)", MACHINE_SUPPORTS_SAVE )
// YEAR NAME PARENT MACHINE INPUT CLASS INIT SCREEN COMPANY FULLNAME FLAGS
GAME( 1994, kinst, 0, kinst, kinst, kinst_state, init_kinst, ROT0, "Rare (Midway license)", "Killer Instinct", MACHINE_SUPPORTS_SAVE )
GAME( 1996, kinst2, 0, kinst2, kinst2, kinst_state, init_kinst2, ROT0, "Rare (Midway license)", "Killer Instinct 2", MACHINE_SUPPORTS_SAVE )
GAME( 1996, kinst2uk, kinst2, kinst2uk, kinst2, kinst2uk_state, init_kinst2, ROT0, "Rare (Midway license)", "Killer Instinct 2 (upgrade kit)", MACHINE_SUPPORTS_SAVE )