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Added idle skip for Ghost Eolith driver [David Haywood]

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This commit is contained in:
Angelo Salese 2010-12-22 21:12:20 +00:00
parent 5bb3980fb5
commit 8ac798287b
3 changed files with 38 additions and 1 deletions
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2
src/emu/machine/s3c2410.h
View File

@ -36,6 +36,8 @@ enum
DECLARE_LEGACY_DEVICE(S3C2410, s3c2410);
READ32_DEVICE_HANDLER( s3c24xx_lcd_r );
/*******************************************************************************
TYPE DEFINITIONS
*******************************************************************************/

2
src/emu/machine/s3c24xx.c
View File

@ -734,7 +734,7 @@ static UINT32 s3c24xx_video_update( running_device *device, screen_device *scree
return 0;
}
static READ32_DEVICE_HANDLER( s3c24xx_lcd_r )
READ32_DEVICE_HANDLER( s3c24xx_lcd_r )
{
s3c24xx_t *s3c24xx = get_token( device);
UINT32 data = ((UINT32*)&s3c24xx->lcd.regs)[offset];

35
src/mame/drivers/ghosteo.c
View File

@ -390,6 +390,39 @@ static const i2cmem_interface i2cmem_interface =
I2CMEM_SLAVE_ADDRESS, 0, 256
};
running_device* s3c2410;
static READ32_HANDLER( bballoon_speedup_r )
{
UINT32 ret = s3c24xx_lcd_r(s3c2410, offset+0x10/4, mem_mask);
int pc = cpu_get_pc(space->cpu);
// these are vblank waits
if (pc == 0x3001c0e4 || pc == 0x3001c0d8)
{
// BnB Arcade
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(20));
}
else if (pc == 0x3002b580 || pc == 0x3002b550)
{
// Happy Tour
cpu_spinuntil_time(space->cpu, ATTOTIME_IN_USEC(20));
}
//else
// printf("speedup %08x %08x\n", pc, ret);
return ret;
}
static MACHINE_RESET( bballoon )
{
memory_install_read32_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0x4d000010, 0x4d000013, 0, 0, bballoon_speedup_r);
s3c2410 = machine->device("s3c2410");
}
static MACHINE_CONFIG_START( bballoon, driver_device )
/* basic machine hardware */
@ -405,6 +438,8 @@ static MACHINE_CONFIG_START( bballoon, driver_device )
MDRV_PALETTE_LENGTH(256)
MDRV_MACHINE_RESET( bballoon )
MDRV_VIDEO_START(s3c2410)
MDRV_VIDEO_UPDATE(s3c2410)