Developing a simple operating system in Rust

create bootimage with bootimage tool:

• install bootimage tool: cargo install bootimage
• run bootimage tool (execute in project dir): cargo bootimage

use the created bootimage with qemu: qemu-system-x86_64 -drive format=raw,file=target/x86_64-rustOStt/debug/bootimage-rustOS.bin OR let the bootloader tool config in the cargo config.toml handle it with:

[target.'cfg(target_os = "none")']
runner = "bootimage runner"

(qemu should be started with "cargo run"

• including CPU exception handling