A toy OS to practice OS fundamentals, implemented in Bochs. Bochs is an x86 emulator.

Difference between emulation and virtualization:

With emulation, the entire architecture is "emulated." With virtualization, only some trapping instructions in x86 are emulated; the remaining instructions are executed directly on bare metal.

Difference between emulation and simulation:

With emulation, an object is constructed to appear and "behave" like a target, but the internal workings may be different from the target. With simulation, an object will be an exact "replica" of the target.

Need Bochs, GCC and Netwide Assembler (NASM)

Run GNU 'make' command. Run script with 'make' option to build floppy image.

Run script with 'run' option to run Bochs. When GRUB loads, simply boot the kernel by hitting 'Enter' key. Enjoy!

Run script with 'clean' option to clean working tree.