Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 00:39:36 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

cischeat.cpp: irq notes, bumped framerate to 60 Hz to all minus captflag/scudhamm (nw)

Browse Source
This commit is contained in:
angelosa 2016-10-05 13:42:41 +02:00
parent a860875217
commit 27f203827a
2 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/mame/drivers/cischeat.cpp
View File

@ -108,7 +108,7 @@ ROM R 000000-03ffff <
Work RAM RW 0c0000-0c3fff 180000-183fff
Shared RAM RW 040000-047fff 080000-087fff
Road RAM RW 080000-0807ff 100000-1007ff
Whatchdog 100000-100001 200000-200001
Watchdog 100000-100001 200000-200001
----------------------------------------------------------------
----------------------------------------------------------------
@ -1834,19 +1834,22 @@ GFXDECODE_END
Big Run, Cisco Heat, F1 GrandPrix Star
**************************************************************************/
/* TODO: this is hackish */
/*
irq 1 is comms related, presumably the bridge chip is capable of sending the irq signal at given times. Wild Pilot of course doesn't need it.
irq 2/4 controls gameplay speed, currently unknown about the timing
*/
TIMER_DEVICE_CALLBACK_MEMBER(cischeat_state::bigrun_scanline)
{
int scanline = param;
if(scanline == 240) // vblank-out irq
m_cpu1->set_input_line(4, HOLD_LINE);
m_cpu1->set_input_line(m_screen->frame_number() & 1 ? 4 : 1, HOLD_LINE);
if(scanline == 154)
if(scanline == 0)
m_cpu1->set_input_line(2, HOLD_LINE);
if(scanline == 69)
m_cpu1->set_input_line(1, HOLD_LINE);
// if(scanline == 69)
// m_cpu1->set_input_line(1, HOLD_LINE);
}
@ -1881,7 +1884,7 @@ static MACHINE_CONFIG_START( bigrun, cischeat_state )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_AFTER_VBLANK)
MCFG_SCREEN_REFRESH_RATE(30) //TODO: wrong!
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate */)
MCFG_SCREEN_SIZE(256, 256)
MCFG_SCREEN_VISIBLE_AREA(0, 256-1, 0+16, 256-16-1)

2
src/mame/includes/cischeat.h
View File

@ -24,6 +24,7 @@ public:
m_cpu3(*this, "cpu3"),
m_cpu5(*this, "cpu5"),
m_soundcpu(*this, "soundcpu"),
m_screen(*this, "screen"),
m_watchdog(*this, "watchdog"),
m_oki1(*this, "oki1"),
m_oki2(*this, "oki2"),
@ -119,6 +120,7 @@ public:
optional_device<cpu_device> m_cpu3;
optional_device<cpu_device> m_cpu5;
optional_device<cpu_device> m_soundcpu;
required_device<screen_device> m_screen;
optional_device<watchdog_timer_device> m_watchdog;
required_device<okim6295_device> m_oki1;
required_device<okim6295_device> m_oki2;