feue256/coresys

How feue256/coresys works

CoreSys is an experimental, UEFI-native operating system, intended to boot on firmware and proceed into initialization, a custom kernel, and modular hardware services. The README also describes framebuffer output, memory management, and an early text interface; these are represented as planned capabilities, not as verified working end-to-end features. The tree contains two substantial additional products: a GPT disk-image utility and a Lua interpreter implementation. Source excerpts provide limited evidence for runtime wiring, so uncertain links are omitted or marked unverified.

Main entry points: kernel/main.c Kernel Core · drivers Driver Services · lparser.c Lua Parser · GPT/main.c GPT Image Builder

Components 17

CoreSys OS

UEFI Bootloader src/CoreSys/bootloader/main.c
System Initialization src/CoreSys/init/main.c
Kernel Core src/CoreSys/kernel/main.c
Driver Services src/CoreSys/kernel/drivers
Memory Management src/CoreSys/kernel/drivers/page/main.h
Framebuffer Output src/CoreSys/kernel/drivers/vga/main.h
Text Interface src/CoreSys/kernel/drivers/tty/main.h

GPT Utility

GPT Image Builder src/GPT/main.c
Disk Image

Lua Runtime

Lua API src/lua/lua.h
Lua Lexer src/lua/llex.h
Lua Parser src/lua/lparser.c
Bytecode Generation src/lua/lcode.h
Virtual Machine src/lua/lvm.c
Runtime State src/lua/lstate.h
Lua Command Line src/lua/lua.c

Other components

UEFI Firmware

Connections 15

UEFI Firmware → UEFI Bootloader: starts
UEFI Bootloader → System Initialization: hands off
System Initialization → Kernel Core: initializes
Kernel Core → Driver Services: uses services
Kernel Core → Memory Management: manages memory
Driver Services → Framebuffer Output: provides graphics
Driver Services → Text Interface: provides interface
GPT Image Builder → Disk Image: writes image src/GPT/main.c
GPT Image Builder → Disk Image: uses GPT structures src/GPT/main.c
Lua Parser → Lua Lexer: reads tokens src/lua/lparser.c
Lua Parser → Bytecode Generation: emits code src/lua/lparser.c
Lua Command Line → Lua Parser: loads scripts
Lua Command Line → Virtual Machine: runs scripts
Virtual Machine → Runtime State: uses state
Lua API → Runtime State: exposes state API src/lua/lstate.h

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Drawn by GitDiagram on September 30, 2026 from the repository's file tree, README and source files. Read as Markdown ·