The AmigaOS port was compiled with vbcc 0.6 and is based on the ADoom V0.2 port of Peter McGavin. VDoomPPC is even based on V0.8. The NetBSD/68k port was compiled without nearly any changes.
VDoom68k 0.1 for AmigaOS/68k (179k).
VDoomPPC 0.3 (640x400) for AmigaOS/PPC (265k). Requires PPCRun to execute
Doom for NetBSD/68k (189k).