nopOS is meant to be a long-term hobby project, whose main goal is to provide a fully usable and self-hosting enviroment on many different architectures and devices, ranging from (hopefully) simple 8-bit microcontrollers to fast and modern x86_64 CPUs, to really obscure server-specific ISAs.

nopOS is divided into its main three parts, named after their matching folders:

• nop: nopOS's kernel, written in GNU89-compliant C code.
• lib: An alternative (yet largely overlapping) standard library for both nop and nopOS's userspace.
• host: A complete suite of programs, ports and configuration files for nopOS's userspace.

TODO

• nop
  • Device system (nop/device).
  • Tree system (nop/tree).
    • root
    • pci
    • net
    • mbr
    • gpt
    • nilfs2
    • fat12
    • fat16
    • fat32
  • Event system (nop/event).
  • Running unit system (nop/unit).
    • Kernel call handling (with BSON).
  • Make codebase SMP-friendly (sounds like a huge task to me, I have no idea how to...).
  • Platform-agnostic drivers and tasks
    • AHCI (nop/tasks/ahci).
• i386
  • Entry point.
  • PCI (nop/arch/i386/tasks/pci).
    • Detect PCI presence instead of assuming it's there.
    • Write support.
    • Read support.
  • IDT event triggering (nop/arch/i386/tasks/idt).
  • VGA text mode (nop/arch/i386/tasks/text).
  • Serial ports (nop/arch/i386/tasks/serial).
• x86_64
  • Entry point.
• armv7/v8
  • Entry point.
• aarch64
  • Entry point.
• rv32* (RISC-V)
  • Entry point.
• rv64* (RISC-V)
  • Entry point.
• SH4A
  • Entry point.

TODO

TODO

TODO

TODO