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kludge for sprite flickering (video raw params should solve it cleanly but we need to understand seibu crtc more)

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This commit is contained in:
Michaël Banaan Ananas 2014-09-11 19:36:02 +00:00
parent 43113cff6f
commit a7ca0bbba2
1 changed files with 1 additions and 5 deletions
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6
src/mame/drivers/raiden2.c
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@ -636,10 +636,6 @@ WRITE16_MEMBER(raiden2_state::cop_cmd_w)
int npos = ppos + space.read_dword(cop_regs[0] + 0x10 + offset*4);
int delta = (npos >> 16) - (ppos >> 16);
space.write_dword(cop_regs[0] + 4 + offset*4, npos);
/* TODO: check the following, makes Zero Team to crash as soon
as this command is triggered (see above) --- or not, since
it was just changed */
space.write_word(cop_regs[0] + 0x1e + offset*4, space.read_word(cop_regs[0] + 0x1e + offset*4) + delta);
break;
}
@ -2094,7 +2090,7 @@ static MACHINE_CONFIG_START( raiden2, raiden2_state )
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_AFTER_VBLANK)
MCFG_SCREEN_REFRESH_RATE(55.47) /* verified on pcb */
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500) /* not accurate *//2)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(500) /* not accurate */)
MCFG_SCREEN_SIZE(44*8, 34*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 40*8-1, 0, 30*8-1)
MCFG_SCREEN_UPDATE_DRIVER(raiden2_state, screen_update_raiden2)