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/***************************************************************************
PeT mess@utanet.at
***************************************************************************/
#include "emu.h"
#include "includes/cbmb.h"
#include "video/mc6845.h"
VIDEO_START( cbmb_crtc )
{
}
void cbm600_vh_init(running_machine &machine)
{
UINT8 *gfx = machine.root_device().memregion("gfx1")->base();
int i;
/* inversion logic on board */
for (i=0; i<0x800; i++) {
gfx[0x1000+i]=gfx[0x800+i];
gfx[0x1800+i]=gfx[0x1000+i]^0xff;
gfx[0x800+i]=gfx[i]^0xff;
}
}
void cbm700_vh_init(running_machine &machine)
{
UINT8 *gfx = machine.root_device().memregion("gfx1")->base();
int i;
for (i=0; i<0x800; i++) {
gfx[0x1000+i]=gfx[0x800+i];
gfx[0x1800+i]=gfx[0x1000+i]^0xff;
gfx[0x800+i]=gfx[i]^0xff;
}
}
VIDEO_START( cbm700 )
{
int i;
/* remove pixel column 9 for character codes 0 - 175 and 224 - 255 */
for( i = 0; i < 256; i++)
{
// if( i < 176 || i > 223 )
{
int y;
for( y = 0; y < machine.gfx[0]->height(); y++ ) {
*const_cast<UINT8 *>(machine.gfx[0]->get_data(i) + y * machine.gfx[0]->rowbytes() + 8) = 0;
*const_cast<UINT8 *>(machine.gfx[1]->get_data(i) + y * machine.gfx[1]->rowbytes() + 8) = 0;
}
}
}
}
void cbmb_vh_set_font(running_machine &machine, int font)
{
cbmb_state *state = machine.driver_data<cbmb_state>();
state->m_font=font;
}
MC6845_UPDATE_ROW( cbm600_update_row )
{
cbmb_state *state = device->machine().driver_data<cbmb_state>();
const rgb_t *palette = palette_entry_list_raw(bitmap.palette());
UINT8 *videoram = state->m_videoram;
int i;
for( i = 0; i < x_count; i++ ) {
if ( i == cursor_x ) {
bitmap.plot_box( device->machine().gfx[state->m_font]->width() * i, y, device->machine().gfx[state->m_font]->width(), 1, palette[1] );
} else {
drawgfx_opaque( bitmap, cliprect, device->machine().gfx[state->m_font], videoram[(ma+i )& 0x7ff], 0, 0, 0, device->machine().gfx[state->m_font]->width() * i, y-ra );
}
}
}
MC6845_UPDATE_ROW( cbm700_update_row )
{
cbmb_state *state = device->machine().driver_data<cbmb_state>();
const rgb_t *palette = palette_entry_list_raw(bitmap.palette());
UINT8 *videoram = state->m_videoram;
int i;
for( i = 0; i < x_count; i++ ) {
if ( i == cursor_x ) {
bitmap.plot_box( device->machine().gfx[state->m_font]->width() * i, y, device->machine().gfx[state->m_font]->width(), 1, palette[1] );
} else {
drawgfx_opaque( bitmap, cliprect, device->machine().gfx[state->m_font], videoram[(ma+i) & 0x7ff], 0, 0, 0, device->machine().gfx[state->m_font]->width() * i, y-ra );
}
}
}
WRITE_LINE_DEVICE_HANDLER( cbmb_display_enable_changed )
{
}
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