void crtc_ega_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_LINE:
handle_line_timer();
break;
case TIMER_DE_OFF:
set_de( FALSE );
break;
case TIMER_CUR_ON:
set_cur( TRUE );
/* Schedule CURSOR off signal */
m_cur_off_timer->adjust( attotime::from_ticks( 1, m_clock ) );
break;
case TIMER_CUR_OFF:
set_cur( FALSE );
break;
case TIMER_HSYNC_ON:
{
INT8 hsync_width = ( 0x20 | m_horiz_blank_end ) - ( m_horiz_blank_start & 0x1f );
if ( hsync_width <= 0 )
{
hsync_width += 0x20;
}
m_hsync_width_counter = 0;
set_hsync( TRUE );
/* Schedule HSYNC off signal */
m_hsync_off_timer->adjust( attotime::from_ticks( hsync_width, m_clock ) );
}
break;
case TIMER_HSYNC_OFF:
set_hsync( FALSE );
break;
case TIMER_LIGHT_PEN_LATCH:
m_light_pen_addr = get_ma();
m_light_pen_latched = true;
break;
}
}
void mc6845_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (id)
{
case TIMER_LINE:
handle_line_timer();
break;
case TIMER_DE_OFF:
set_de( FALSE );
break;
case TIMER_CUR_ON:
set_cur( TRUE );
/* Schedule CURSOR off signal */
m_cur_off_timer->adjust( attotime::from_ticks( 1, m_clock ) );
break;
case TIMER_CUR_OFF:
set_cur( FALSE );
break;
case TIMER_HSYNC_ON:
{
UINT8 hsync_width = ( m_sync_width & 0x0f ) ? ( m_sync_width & 0x0f ) : 0x10;
m_hsync_width_counter = 0;
set_hsync( TRUE );
/* Schedule HSYNC off signal */
m_hsync_off_timer->adjust( attotime::from_ticks( hsync_width, m_clock ) );
}
break;
case TIMER_HSYNC_OFF:
set_hsync( FALSE );
break;
case TIMER_LIGHT_PEN_LATCH:
m_light_pen_addr = get_ma();
m_light_pen_latched = true;
break;
case TIMER_UPD_ADR:
/* fire a update address strobe */
call_on_update_address(0);
break;
case TIMER_UPD_TRANS:
{
int addr = (param >> 8);
int strobe = (param & 0xff);
/* call the callback function -- we know it exists */
m_on_update_addr_changed_cb(addr, strobe);
if(!m_update_ready_bit && MODE_TRANSPARENT_BLANK)
{
m_update_addr++;
m_update_addr &= 0x3fff;
m_update_ready_bit = true;
}
}
break;
}
}
