rust_os_study

This is about writing opearting system in Rust based on Philipp Oppermann's blog: https://os.phil-opp.com/

Currently (9/9/25)

• added VGA buffers
• added interrupts: breakpoint, double fault handlers, timer interrupt, keyboard interrupt
• added page table (physical_memory & virtual memory)

Rust Version for this project

• rustc: 1.90.0-nightly
• cargo: 1.90.0-nightly
• x86_64: "0.14.13"
• bootloader: "0.9"
• uart_16550: "0.2.19"
• volatile: "0.2.7"

Hardware Interrupts

• added hlt instruction to let the CPU work efficiently since the prev version runs at full speed (spin endlessly) always.
• HLT instruction: It allows the CPU to enter the sleep state (less energy)
• From the prev version, I replaced the enless loop { } to the hlt_loop which incudes the hlt instruction

Timer Interrupt Handler (Done)

Keyboard Interrupt Handler (Done)

• Able to find which key was pressed by scancodes

Page Table

Allocator