/* Reset the CRTC chip. */
void crtc_reset(void)
{
raster_reset(&crtc.raster);
alarm_set(crtc.raster_draw_alarm, CRTC_CYCLES_PER_LINE());
crtc.rl_visible = crtc.regs[1];
crtc.rl_sync = crtc.regs[2];
crtc.rl_len = crtc.regs[0];
crtc.prev_rl_visible = crtc.rl_visible;
crtc.prev_rl_sync = crtc.rl_sync;
crtc.prev_rl_len = crtc.rl_len;
crtc.rl_start = maincpu_clk;
crtc.frame_start = maincpu_clk;
crtc_reset_screen_ptr();
crtc.raster.ycounter = 0;
crtc.current_charline = 0;
crtc.current_line = 0;
/* expected number of rasterlines for next frame */
crtc.framelines = (crtc.regs[4] + 1) * (crtc.regs[9] + 1)
+ crtc.regs[5];
}
/* Reset the TED chip. */
void ted_reset(void)
{
/* ted_change_timing();*/
ted_timer_reset();
ted_sound_reset();
raster_reset(&ted.raster);
/* FIXME this should be in powerup */
ted.tv_current_line = 0;
ted.ted_raster_counter = ted.vsync_line;
/* ted_set_geometry();*/
ted.last_emulate_line_clk = 0;
ted.draw_clk = ted.draw_cycle;
alarm_set(ted.raster_draw_alarm, ted.draw_clk);
ted.fetch_clk = TED_FETCH_CYCLE;
alarm_set(ted.raster_fetch_alarm, ted.fetch_clk);
/* FIXME: I am not sure this is exact emulation. */
ted.raster_irq_line = 0;
ted.raster_irq_clk = 0;
/* Setup the raster IRQ alarm. The value is `1' instead of `0' because we
are at the first line, which has a +1 clock cycle delay in IRQs. */
/* FIXME */
alarm_set(ted.raster_irq_alarm, 1);
ted.force_display_state = 0;
ted.reverse_mode = 0;
/* Remove all the IRQ sources. */
ted.regs[0x0a] = 0;
ted.raster.display_ystart = ted.raster.display_ystop = -1;
ted.cursor_visible = 0;
ted.cursor_phase = 0;
ted.fastmode = 1;
}
/* Reset the VDC chip */
void vdc_reset(void)
{
if (vdc.initialized)
raster_reset(&vdc.raster);
vdc.frame_counter = 0;
vdc.screen_text_cols = VDC_SCREEN_MAX_TEXTCOLS;
vdc.xsmooth = 0;
vdc.regs[0] = 126;
vdc.regs[1] = 102;
vdc.xchars_total = vdc.regs[0] + 1;
vdc_calculate_xsync();
vdc.regs[4] = 39;
vdc.regs[5] = 0;
vdc.regs[6] = 25;
vdc.regs[9] = 7;
vdc_update_geometry();
vdc_set_next_alarm((CLOCK)0);
}
/* Reset the VIC-I chip. */
void vic_reset(void)
{
/* vic_change_timing();*/
raster_reset(&vic.raster);
/* vic_set_geometry();*/
vic.last_emulate_line_clk = 0;
vic.draw_clk = vic.cycles_per_line;
alarm_set(vic.raster_draw_alarm, vic.draw_clk);
vic.row_counter = 0;
vic.memptr = 0;
vic.pending_ystart = -1;
vic.pending_text_lines = -1;
vic.row_offset = -1;
vic.area = 0;
}
int raster_init(raster_t *raster,
unsigned int num_modes)
{
raster->intialized = 0;
raster->modes = lib_malloc(sizeof(raster_modes_t));
raster_modes_init(raster->modes, num_modes);
raster_canvas_init(raster);
raster_changes_init(raster);
raster_reset(raster);
raster->display_xstart = raster->display_xstop = 0;
raster->display_ystart = raster->display_ystop = 0;
raster->cache = NULL;
raster->cache_enabled = 0;
raster->dont_cache = 1;
raster->dont_cache_all = 0;
raster->num_cached_lines = 0;
raster->fake_draw_buffer_line = NULL;
raster->can_disable_border = 0;
raster->border_disable = 0;
raster->border_color = 0;
raster->background_color = 0;
raster->idle_background_color = 0;
raster->xsmooth_color = 0;
memset(raster->gfx_msk, 0, RASTER_GFX_MSK_SIZE);
memset(raster->zero_gfx_msk, 0, RASTER_GFX_MSK_SIZE);
video_viewport_get(raster->canvas, &raster->viewport, &raster->geometry);
raster->canvas->initialized = 1;
raster_set_canvas_refresh(raster, 1);
return 0;
}