takenobu-hs / cpu-assembly-examples

CPU assembly examples

CPU assembly examples

• This is a repo about tiny assembly examples for various CPUs (x86, Arm, and RISC-V).
• There are examples such as system-calls, library-calls, load/store, if/for/call, barriers, atomics, and threads.
• This repo focuses on CPU hardwares, not assembly notation or ABI conventions.

Contents

• x86(x86_64)/linux
• Arm(Armv8 aarch64)/linux
• RISC-V(RV64G)/linux

An example

100.main/simple_main.S:

        .global main

main:
        ret

Assemble and excecute

$ cd <sample-directory>
$ make -f ../Makefile  <sample>             # assemble
$ ./<sample>                                # execute