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comparison romdb.c @ 1408:71b6e2298e4a

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Better handling of S&K lock on support. Pre-combined ROMs and large (>2MB) S&K hacks should now work. Implemented correct behavior from locking on a 4MB cart
author Michael Pavone <pavone@retrodev.com>
date Mon, 19 Jun 2017 19:18:50 -0700
parents efa7225e0f07
children b0e0bb20fc41
comparison
equal deleted inserted replaced
1407:4c58695c1e1f 1408:71b6e2298e4a
1026 if (!strcmp(dtype, "ROM")) { 1026 if (!strcmp(dtype, "ROM")) {
1027 map->buffer = state->rom + offset; 1027 map->buffer = state->rom + offset;
1028 map->flags = MMAP_READ; 1028 map->flags = MMAP_READ;
1029 map->mask = calc_mask(state->rom_size - offset, start, end); 1029 map->mask = calc_mask(state->rom_size - offset, start, end);
1030 } else if (!strcmp(dtype, "LOCK-ON")) { 1030 } else if (!strcmp(dtype, "LOCK-ON")) {
1031 if (!state->lock_on) { 1031 if (state->lock_on) {
1032 if (state->lock_on_size > offset) {
1033 map->mask = calc_mask(state->lock_on_size - offset, start, end);
1034 } else {
1035 map->mask = calc_mask(state->lock_on_size, start, end);
1036 }
1037 map->buffer = state->lock_on + (offset & (nearest_pow2(state->lock_on_size) - 1));
1038 } else if (state->rom_size > start) {
1039 //This is a bit of a hack to deal with pre-combined S3&K/S2&K ROMs and S&K ROM hacks
1040 map->buffer = state->rom + start;
1041 map->mask = calc_mask(state->rom_size - start, start, end);
1042 } else {
1032 //skip this entry if there is no lock on cartridge attached 1043 //skip this entry if there is no lock on cartridge attached
1033 return; 1044 return;
1034 } 1045 }
1035 map->buffer = state->lock_on + offset;
1036 map->flags = MMAP_READ; 1046 map->flags = MMAP_READ;
1037 map->mask = calc_mask(state->lock_on_size - offset, start, end);
1038 } else if (!strcmp(dtype, "EEPROM")) { 1047 } else if (!strcmp(dtype, "EEPROM")) {
1039 process_eeprom_def(key, state); 1048 process_eeprom_def(key, state);
1040 add_eeprom_map(node, start, end, state); 1049 add_eeprom_map(node, start, end, state);
1041 1050
1042 map->write_16 = write_eeprom_i2c_w; 1051 map->write_16 = write_eeprom_i2c_w;