Что такое формат файла IPS?
.ips is a patch file that stores byte-level changes for ROM game images. Rather than containing a full game, an .ips file is a binary diff you apply to a legally-owned base ROM to produce a modified version. IPS patches can deliver fan translations, bug fixes, new graphics, music tracks, or language localization packages. The format uses 24-bit addressing, which limits target offsets to 16 MB; for larger ROMs, the community-extended .ips32 format or newer alternatives like .BPS and .UPS are preferred instead.
Applying patches
.ips patch files must be applied using dedicated ROM patching tools. Such a tool will overwrite the given ROM to include the .ips data - or produce a patched copy - and it is advised to keep a backup of the original ROM for safety. Because .ips carries no internal checksum, it cannot verify that it is being applied to the correct ROM version; applying it to the wrong base silently produces a corrupted result. Some emulator software is capable of applying .ips patches on-the-fly, without permanently overwriting the ROM image.
Безопасность и защита
РИСК: MEDIUMThe IPS file itself is a passive byte-diff and can't execute, but there are real pitfalls. (1) Legality/source: patches are legitimate, but you must apply them to a ROM you legally own; downloading pre-patched ROMs is piracy. (2) No checksum: applying an IPS to the wrong ROM version silently corrupts the output, so match the exact ROM the patch targets. (3) Fake 'IPS patchers' on ad-heavy sites can bundle PUPs - use the reputable tools listed here (Lunar IPS, Flips, Rom Patcher JS) and keep an unpatched backup of your ROM.
Детали формата
в двух словах- Apple iOS panic / crash log - iPhones/iPads write .ips files under Settings > Privacy > Analytics Data - JSON-based panic/crash logs, unrelated to ROM patching.
Программы, открывающие файлы IPS
Технические подробности
глубокая спецификация| File magic / header | ASCII "PATCH" - 5 bytes (hex 50 41 54 43 48) at offset 0 |
| File terminator | ASCII "EOF" - 3 bytes (hex 45 4F 46) marking end of all patch records |
| Byte order | Big-endian for all multi-byte integers (offsets and lengths) |
| Offset size | 3 bytes (24-bit), addressing up to 16,777,215 bytes in the target file |
| Record structure | {3-byte offset, 2-byte data length, N bytes of replacement data} per patch record |
| RLE encoding | When length field is 0x0000: followed by a 2-byte run count and 1-byte repeat value |
| Integrity / checksum | None - no hash of source or target ROM is stored; wrong base ROM produces silent corruption |
| Compression | No general compression; only record-level RLE for repeated-byte sequences |
| Encoding | Binary with printable ASCII magic strings at header and footer |
| Typical file size | Bytes to a few hundred KB, proportional to the volume of changed data |
| Address space limit | Classic IPS: 16 MB (24-bit); IPS32 variant: 4 GB (32-bit offsets) |
| MIME type | application/octet-stream (informal: application/x-ips-patch) |
| Apply method | Byte-accurate overlay: each record replaces bytes at the exact offset in the target ROM |
| Source ROM verification | Not supported - no CRC, MD5, or SHA hash of the base ROM is embedded in the file |
| Target platform support | Patching tools available for Windows, macOS, Linux, and in-browser (no native OS tie-in) |
| Выпущен | early-mid 1990s (ROM-copier / emulation scene) |
| Последняя версия | IPS (frozen); IPS32 extension lifts the 16 MB limit; largely superseded by BPS/UPS for larger ROMs |
| Открыть стандартное | Да · без роялти |
| Спецификация | zerosoft.zophar.net |
Конвертации IPS
Вопросы и ответы сообщества
спрошено пользователямиВопросов пока нет - станьте первым, кто спросит о файлах IPS.