static TIMER_CALLBACK( vblank_interrupt_callback )
{
neogeo_state *state = machine.driver_data<neogeo_state>();
if (LOG_VIDEO_SYSTEM) logerror("+++ VBLANK @ %d,%d\n", machine.primary_screen->vpos(), machine.primary_screen->hpos());
/* add a timer tick to the pd4990a */
upd4990a_addretrace(state->m_upd4990a);
state->m_vblank_interrupt_pending = 1;
update_interrupts(machine);
/* set timer for next screen */
state->m_vblank_interrupt_timer->adjust(machine.primary_screen->time_until_pos(NEOGEO_VBSTART));
}
static TIMER_CALLBACK( vblank_interrupt_callback )
{
const device_config *upd4990a = devtag_get_device(machine, "upd4990a");
if (LOG_VIDEO_SYSTEM) logerror("+++ VBLANK @ %d,%d\n", video_screen_get_vpos(machine->primary_screen), video_screen_get_hpos(machine->primary_screen));
/* add a timer tick to the pd4990a */
upd4990a_addretrace(upd4990a);
vblank_interrupt_pending = 1;
update_interrupts(machine);
/* set timer for next screen */
timer_adjust_oneshot(vblank_interrupt_timer, video_screen_get_time_until_pos(machine->primary_screen, NEOGEO_VBSTART, 0), 0);
}
