sdlpop - RetroBIOS¶
Technical notes
SDLPoP is NagyD's open-source port of the DOS Prince of Persia (1989), rebuilt from the leaked Jordan Mechner source and refined through years of community reverse engineering. Unlike the other engines in this directory, SDLPoP ships with ALL game data in-tree; no retail data file is required or useful.
open_dat() (src/seg009.c:438) reads an archive named FOO.DAT if present, otherwise falls back to a loose folder data/FOO/ containing the extracted resources (lines 440-456 and 488-500). The repository ships both forms:
data/*.DAT files committed: DIGISND1.DAT, DIGISND2.DAT, DIGISND3.DAT (digitized SFX) MIDISND1.DAT, MIDISND2.DAT (MIDI SFX) GUARD.DAT, GUARD1.DAT, GUARD2.DAT (guard graphics variants)
data/<name>/ folders committed (extracted resources): PRINCE, KID, SHADOW, SKEL, GUARD, GUARD1, GUARD2, VIZIER, VPALACE, VDUNGEON, PV, FAT, TITLE, IBM_SND1, IBM_SND2, LEVELS, font, music
The named folders are the fall-back for the DAT files the loader actually requests: PRINCE.DAT (seg000.c:123, 1030-1037, 1067-1072), LEVELS.DAT (seg000.c:1153), TITLE.DAT (seg000.c:2298), KID / GUARD / SHADOW / SKEL / FAT / VPALACE / VDUNGEON / VIZIER / PV at level switch (seg000.c:1656, 1690). The data/music folder holds the OGG/MP3 soundtrack files added by the port.
Consequence: retrobios does not supply any file to run the base game. Users can drop MOD folders under mods/<MODNAME>/ to layer custom level packs on top (open_dat lines 448-452); those are user content, not shared BIOS data, and are not tracked here.
No BIOS or firmware files required.
Why no files
all required game data ships inside the source repository (data/ and data/<folder>/ trees)
Generated on 2026-10-10T11:26:02Z