LAIN-OS

"No matter where you are, everyone is always connected."

LainOS (Abyss) is an experimental RISC-V kernel written in C. It features a temporal fracture scheduler and a predictive shell with Markov chain-based command prediction.

Features

• Temporal Fracture Scheduler: Process scheduling based on timeline priorities
• Predictive Shell: Tab completion using Markov chains that learn from your commands
• Memory Management: Physical and virtual memory management with paging
• Process Management: Full process lifecycle with fork/exec/exit
• Virtual File System: In-memory filesystem with basic operations
• System Calls: Standard Unix-like system call interface

Building

Requirements:

• riscv64-unknown-elf-gcc
• riscv64-unknown-elf-binutils
• qemu-system-riscv64

make clean
make

Running

make run

To exit QEMU, press Ctrl+A then X.

Debugging

make debug

In another terminal:

riscv64-unknown-elf-gdb build/bin/kernel.elf
(gdb) target remote :1234
(gdb) continue

Shell Commands

• help - Show available commands
• neofetch - Display system information
• ps - List running processes
• kill <pid> - Terminate a process
• mem - Show memory statistics
• clear - Clear the screen
• echo <text> - Print text
• ascend - Trigger system state dump

Architecture

graph TD
    subgraph Hardware
        QEMU[QEMU RISC-V]
    end

    subgraph AbyssCore
        START[start.S] --> KMAIN[kmain.c]
        KMAIN --> HEAP[Heap Allocator]
        KMAIN --> PAGING[Page Tables]
    end

    subgraph Subsystems
        KMAIN --> SCHEDULER[Scheduler<br/>← temporal]
        KMAIN --> VFS[NeuroVFS]
        KMAIN --> SHELL[Predictive Shell]
        KMAIN --> EGO[Ego Containers]
    end

    subgraph Tools
        SHELL --> DECOMPILER[Live Disassembler]
        SHELL --> PATCHER[Hot Patcher]
        SHELL --> ASCENSION[Ascension Trigger]
    end

    subgraph Drivers
        KMAIN --> QUANTUM[Quantum Driver]
        QEMU --> UART[UART @ 0x10000000]
    end

    SCHEDULER -- "creates / schedules" --> PROCESSES[Processes]
    PAGING -- "maps" --> PROCESSES
    VFS -- "files" --> FILESYSTEM["/home/lain"]
    UART -->|"characters in"| SHELL
    SHELL -->|"characters out"| UART

Loading

abyss/
├── arch/riscv64/     RISC-V specific code
├── kernel/           Core kernel (processes, scheduler, syscalls)
├── mm/               Memory management
├── fs/               Filesystem
├── drivers/          Device drivers
├── shell/            Shell and Markov predictor
├── lib/              Kernel library functions
└── init/             Kernel initialization

Present Day. Present Time.

HA-HA-HA-HA-HA.