static int
machine_load_rom_bank_from_file( memory_page* bank_map, int page_num,
const char *filename, size_t expected_length, int custom )
{
int error;
utils_file rom;
error = utils_read_auxiliary_file( filename, &rom, UTILS_AUXILIARY_ROM );
if( error == -1 ) {
ui_error( UI_ERROR_ERROR, "couldn't find ROM '%s'", filename );
return 1;
}
if( error ) return error;
if( rom.length != expected_length ) {
ui_error( UI_ERROR_ERROR,
"ROM '%s' is %ld bytes long; expected %ld bytes",
filename, (unsigned long)rom.length,
(unsigned long)expected_length );
utils_close_file( &rom );
return 1;
}
error = machine_load_rom_bank_from_buffer( bank_map, page_num, rom.buffer,
rom.length, custom );
utils_close_file( &rom );
return error;
}
static int
machine_load_rom_bank_from_file( memory_page* bank_map, size_t which,
int page_num, const char *filename,
size_t expected_length, int custom )
{
compat_fd fd;
int error;
utils_file rom;
fd = utils_find_auxiliary_file( filename, UTILS_AUXILIARY_ROM );
if( fd == COMPAT_FILE_OPEN_FAILED ) {
ui_error( UI_ERROR_ERROR, "couldn't find ROM '%s'", filename );
return 1;
}
error = utils_read_fd( fd, filename, &rom );
if( error ) return error;
if( rom.length != expected_length ) {
ui_error( UI_ERROR_ERROR,
"ROM '%s' is %ld bytes long; expected %ld bytes",
filename, (unsigned long)rom.length,
(unsigned long)expected_length );
utils_close_file( &rom );
return 1;
}
error = machine_load_rom_bank_from_buffer( bank_map, which, page_num,
rom.buffer, rom.length, custom );
error |= utils_close_file( &rom );
return error;
}
static void
didaktik_from_snapshot( libspectrum_snap *snap )
{
int i;
if( !libspectrum_snap_didaktik80_active( snap ) ) return;
if( libspectrum_snap_didaktik80_custom_rom( snap ) &&
libspectrum_snap_didaktik80_rom( snap, 0 ) &&
machine_load_rom_bank_from_buffer(
didaktik_memory_map_romcs_rom, 0,
libspectrum_snap_didaktik80_rom( snap, 0 ),
ROM_SIZE, 1 ) )
return;
if( libspectrum_snap_didaktik80_ram( snap, 0 ) ) {
for( i = 0; i < MEMORY_PAGES_IN_2K; i++ )
memcpy( didaktik_memory_map_romcs_ram[ i ].page,
libspectrum_snap_didaktik80_ram( snap, 0 ) + i * MEMORY_PAGE_SIZE,
MEMORY_PAGE_SIZE );
}
/* ignore drive count for now, there will be an issue with loading snaps where
drives have been disabled
libspectrum_snap_didaktik80_drive_count( snap )
*/
didaktik_fdc->direction = libspectrum_snap_plusd_direction( snap );
didaktik_cr_write ( 0x0081, libspectrum_snap_didaktik80_status ( snap ) );
didaktik_tr_write ( 0x0083, libspectrum_snap_didaktik80_track ( snap ) );
didaktik_sec_write( 0x0085, libspectrum_snap_didaktik80_sector ( snap ) );
didaktik_dr_write ( 0x0087, libspectrum_snap_didaktik80_data ( snap ) );
didaktik_aux_write( 0x0089, libspectrum_snap_didaktik80_aux ( snap ) );
if( libspectrum_snap_didaktik80_paged( snap ) ) {
didaktik80_page();
} else {
didaktik80_unpage();
}
}
