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pczero

experiments with bootable image of x86 and protected mode 32 bit code for the i386 platform

written in assembler and C++

intention:

  • travel back to the 80's when the 32 bit intel 386 with math co-processor appeared, equipped with c++ from the future
  • write a micro kernel (1 KB) in assembler that does preemptive multitasking
  • handle multiple tasks and keyboard with a simple kernel written in c++
  • write a small 2d framework for a toy application

contains:

  • minimal assembler kernel supporting preemptive multitasking (osca.S)
  • minimal c++ kernel (lib.h, kernel.h)
    • task switch (ctrl+tab)
    • enable/disable task (ctrl+F1, F2 etc)
    • keyboard focus on tasks that handle input
  • sample toy application of a 2d game engine (libge.h, game.h)
    • collision detection between convex shapes
    • simple targeting system of objects in motion (can easily be extended to 3d and non-linear trajectories)
  • sample tasks (main.cc)

screenshot 2024-03-13--12-07-40