int
spec128_memory_map( void )
{
int page, screen, rom;
size_t i;
page = machine_current->ram.last_byte & 0x07;
screen = ( machine_current->ram.last_byte & 0x08 ) ? 7 : 5;
rom = ( machine_current->ram.last_byte & 0x10 ) >> 4;
/* If we changed the active screen, mark the entire display file as
dirty so we redraw it on the next pass */
if( memory_current_screen != screen ) {
display_update_critical( 0, 0 );
display_refresh_main_screen();
memory_current_screen = screen;
}
spec128_select_rom( rom );
spec128_select_page( page );
for( i = 0; i < 8; i++ )
memory_map_read[i] = memory_map_write[i] = *memory_map_home[i];
memory_romcs_map();
return 0;
}
void
scld_dec_write( libspectrum_word port GCC_UNUSED, libspectrum_byte b )
{
scld old_dec = scld_last_dec;
scld new_dec;
libspectrum_byte ink,paper;
/* We use new_dec as we don't want to have the new colours, modes etc.
to take effect until we have updated the critical region */
new_dec.byte = b;
/* If we changed the active screen, or change the colour in hires
* mode, update the critical region and mark the entire display file as
* dirty so we redraw it on the next pass */
if( new_dec.mask.scrnmode != old_dec.mask.scrnmode ||
new_dec.name.hires != old_dec.name.hires ||
( new_dec.name.hires &&
( new_dec.mask.hirescol != old_dec.mask.hirescol ) ) ) {
display_update_critical( 0, 0 );
display_refresh_main_screen();
}
/* Commit change to scld_last_dec */
scld_last_dec = new_dec;
/* If we just reenabled interrupts, check for a retriggered interrupt */
if( old_dec.name.intdisable && !scld_last_dec.name.intdisable )
z80_interrupt();
if( scld_last_dec.name.altmembank != old_dec.name.altmembank )
machine_current->memory_map();
display_parse_attr( hires_get_attr(), &ink, &paper );
display_set_hires_border( paper );
}
static int
pentagon_memory_map( void )
{
int rom, page, screen;
size_t i;
screen = ( machine_current->ram.last_byte & 0x08 ) ? 7 : 5;
if( memory_current_screen != screen ) {
display_update_critical( 0, 0 );
display_refresh_main_screen();
memory_current_screen = screen;
}
if( beta_active && !( machine_current->ram.last_byte & 0x10 ) ) {
rom = 2;
} else {
rom = ( machine_current->ram.last_byte & 0x10 ) >> 4;
}
machine_current->ram.current_rom = rom;
spec128_select_rom( rom );
page = machine_current->ram.last_byte & 0x07;
page += ( machine_current->ram.last_byte & 0xC0 ) >> 3;
spec128_select_page( page );
machine_current->ram.current_page = page;
for( i = 0; i < 8; i++ )
memory_map_read[i] = memory_map_write[i] = *memory_map_home[i];
memory_romcs_map();
return 0;
}
