S-OS

S-OS is a simple operating system mainly for Z80 based computers. The operating system was first presented in 1986 in the Japanese magazine Oh!X in an article called "The Sentinel".[1]

Commands

The command and command set is very simplified.

Directory #D [<device name>:]
Change default device (S=startup, A=tape..) #DV <device name>:
Jump to address (and run program) #J <address>
Load the program #L <filename>[:<address>]
Enter the machine specific monitor #M
Delete the file #K <file name>
Save a memory block to file #S <filename>: <start address>: <end address>[: <execution address>]
Exit from S-OS and reboot #!

Supported systems
  • Sharp MZ-80K/C/1200
  • Sharp MZ-700 / 1500
  • Sharp MZ-80B / 2000 / 2200
  • Sharp MZ-2500/2861(MZ-2500 mode)
  • Sharp X1/C/D/Cs/Ck/F/G/Twin (two different implementations)
  • Sharp X1turbo/II/III/Z/ZII/ZIII
  • NEC PC-8001/8801
  • NEC PC-6001mkII/6601/SR
  • Sony SMC-777C
  • Toshiba PASOPIA
  • Fujitsu FM-7 / 77 (Z80 extension card)
  • Sharp X68000 (emulated Z80)
  • PC-286/NEC PC-9801 (emulated Z80)
  • MSX 2 / 2+ / turboR
  • Casio FP-1000 / 1100
  • Windows 32 bit (emulated Z80)
  • Sharp calculators PC-G850/S/V/VS

References
  1. S-OS (The Sentinel)
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