User:Superleaf1995/UDOS

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UDOS

UDOS.png
Developed by:Superleaf1995
Kernel:Time shared exokernel
Task Model:4-level round robin
Platform(s):S/370, S/370-XA, S/390, zEC12, zBC12, z114, z196, z10, z9 (S390 and z/Arch families)
Language(s):Assembly (GAS Syntax), C
License:Unlicense (Public domain)

UDOS is a small OS made for mainframes. It has an integrated console for executing commands and consists of the normal things an OS has: Memory management, VFS, Queued I/O commands, Disk drivers, Filesystem drivers, Text printing & Input processing. All of that but in the mainframe world.

It also supports the equivalent of SYSCALL, with it's own ABI.