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This commit is contained in:
Michaël Banaan Ananas 2014-03-14 00:10:37 +00:00
parent dd6fcf5427
commit dc88b1cf72
2 changed files with 2 additions and 5 deletions
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2
src/mame/drivers/neogeo.c
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@ -881,8 +881,6 @@ void neogeo_state::machine_start()
m_vblank_level = 1;
m_raster_level = 2;
m_audio_cpu_nmi_pending = false;
/* start with an IRQ3 - but NOT on a reset */
m_irq3_pending = 1;

5
src/mame/video/neogeo.c
View File

@ -720,7 +720,7 @@ UINT16 neogeo_state::get_video_control( )
raster effects on the title screen; sdodgeb loops waiting for the top
bit to be 1; zedblade heavily depends on it to work correctly (it
checks the top bit in the IRQ2 handler).
B is definitely a PAL/NTSC flag. Evidence:
B is definitely a PAL/NTSC flag. (LSPC2 only) Evidence:
1) trally changes the position of the speed indicator depending on
it (0 = lower 1 = higher).
2) samsho3 sets a variable to 60 when the bit is 0 and 50 when it's 1.
@ -750,7 +750,6 @@ UINT16 neogeo_state::get_video_control( )
void neogeo_state::set_video_control( UINT16 data )
{
/* this does much more than this, but I'm not sure exactly what */
if (VERBOSE) logerror("%s: video control write %04x\n", machine().describe_context(), data);
set_auto_animation_speed(data >> 8);
@ -801,7 +800,7 @@ WRITE16_MEMBER(neogeo_state::neogeo_video_register_w)
case 0x04: neogeo_set_display_counter_msb(data); break;
case 0x05: neogeo_set_display_counter_lsb(data); break;
case 0x06: neogeo_acknowledge_interrupt(data); break;
case 0x07: break; /* unknown, see get_video_control */
case 0x07: break; // d0: pause timer for 32 lines when in PAL mode (LSPC2 only)
}
}
}