inline void upd65031_device::interrupt_refresh()
{
if ((m_int & INT_GINT) && ((m_int & m_sta & 0x7c) || ((m_int & INT_TIME) && (m_sta & STA_TIME))))
{
if (LOG) logerror("uPD65031 '%s': set int\n", tag());
m_write_int(ASSERT_LINE);
}
else
{
if (LOG) logerror("uPD65031 '%s': clear int\n", tag());
m_write_int(CLEAR_LINE);
}
}
void cdp1861_device::device_reset()
{
m_int_timer->adjust(screen().time_until_pos(SCANLINE_INT_START, 0));
m_efx_timer->adjust(screen().time_until_pos(SCANLINE_EFX_TOP_START, 0));
m_dma_timer->adjust(clocks_to_attotime(CDP1861_CYCLES_DMA_START));
m_disp = 0;
m_dmaout = 0;
m_dispon = 0;
m_write_int(CLEAR_LINE);
m_write_dma_out(CLEAR_LINE);
m_write_efx(CLEAR_LINE);
}
inline void crt9007_t::trigger_interrupt(int line)
{
if (INTERRUPT_ENABLE & line)
{
int status = m_status;
m_status |= STATUS_INTERRUPT_PENDING | line;
if (!(status & STATUS_INTERRUPT_PENDING))
{
if (LOG) logerror("CRT9007 '%s' INT 1\n", tag());
m_write_int(ASSERT_LINE);
}
}
}
void crt9007_t::device_reset()
{
m_disp = 0;
m_vs = 0;
m_cblank = 0;
// HS = 1
m_write_hs(1);
// VS = 1
m_write_vs(1);
// CBLANK = 1
m_write_cblank(0);
// CURS = 0
m_write_curs(0);
// VLT = 0
m_write_vlt(0);
// DRB = 1
m_write_drb(1);
// INT = 0
m_write_int(CLEAR_LINE);
// 28 (DMAR) = 0
m_write_dmar(CLEAR_LINE);
// 29 (WBEN) = 0
m_write_wben(1); // HACK
// 30 (SLG) = 0
m_write_slg(0);
// 31 (SLD) = 0
m_write_sld(0);
// 32 (LPSTB) = 0
}
void cdp1861_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
int scanline = screen().vpos();
switch (id)
{
case TIMER_INT:
if (scanline == SCANLINE_INT_START)
{
if (m_disp)
{
m_write_int(ASSERT_LINE);
}
m_int_timer->adjust(screen().time_until_pos( SCANLINE_INT_END, 0));
}
else
{
if (m_disp)
{
m_write_int(CLEAR_LINE);
}
m_int_timer->adjust(screen().time_until_pos(SCANLINE_INT_START, 0));
}
break;
case TIMER_EFX:
switch (scanline)
{
case SCANLINE_EFX_TOP_START:
m_write_efx(ASSERT_LINE);
m_efx_timer->adjust(screen().time_until_pos(SCANLINE_EFX_TOP_END, 0));
break;
case SCANLINE_EFX_TOP_END:
m_write_efx(CLEAR_LINE);
m_efx_timer->adjust(screen().time_until_pos(SCANLINE_EFX_BOTTOM_START, 0));
break;
case SCANLINE_EFX_BOTTOM_START:
m_write_efx(ASSERT_LINE);
m_efx_timer->adjust(screen().time_until_pos(SCANLINE_EFX_BOTTOM_END, 0));
break;
case SCANLINE_EFX_BOTTOM_END:
m_write_efx(CLEAR_LINE);
m_efx_timer->adjust(screen().time_until_pos(SCANLINE_EFX_TOP_START, 0));
break;
}
break;
case TIMER_DMA:
if (m_dmaout)
{
if (m_disp)
{
if (scanline >= SCANLINE_DISPLAY_START && scanline < SCANLINE_DISPLAY_END)
{
m_write_dma_out(CLEAR_LINE);
}
}
m_dma_timer->adjust(clocks_to_attotime(CDP1861_CYCLES_DMA_WAIT));
m_dmaout = CLEAR_LINE;
}
else
{
if (m_disp)
{
if (scanline >= SCANLINE_DISPLAY_START && scanline < SCANLINE_DISPLAY_END)
{
m_write_dma_out(ASSERT_LINE);
}
}
m_dma_timer->adjust(clocks_to_attotime(CDP1861_CYCLES_DMA_ACTIVE));
m_dmaout = ASSERT_LINE;
}
break;
}
}