I am trying to re-learn assembly. I have been trying to find a tutorial for assembling a program using NASM on Windows, on a CPU with the x86_64 architecture. I have been unable to make any of the provided examples work.

I am asking to be provided:

  • A piece of code to assemble. The resulting program should output a message into the CLI.
  • CLI commands to make an object file and to do linkage of that into an executable file.

This should preferably be done using NASM, on Windows, on x86_64 architecture, but I'm at my wit's end at this point, so I guess I will be fine with another assembler.

I intend to analyze the example and to use this as a starting point in my process of getting back into assembly.

  • Speaker [e/em/eir]
    ·
    5 hours ago

    https://labs.bilimedtech.com/nasm/windows-install/3.html

  • footfaults [none/use name]
    ·
    17 hours ago

    This was one of the search results I found

    https://github.com/ksw2000/x64-NASM-Practice

  • Shinji_Ikari [he/him]
    ·
    17 hours ago

    For the CLI commands: https://www.nasm.us/xdoc/2.16.03/html/nasmdoc2.html#section-2.1

    Have you seen this?

    I haven't written asm in years though, so I cant whip up a putc loop example.

  • Mardoniush [she/her]
    ·
    19 hours ago

    It's probably way too introductory for you, but the game Turing Complete gets you to make your own toy assembly language (twice for different architectures) in the later parts and this helped me immensely when learning assembly myself.

    • Tomorrow_Farewell [any, they/them]
      ·
      19 hours ago

      While curious, that's not at all what I'm looking for in this case. I am looking for an example of working code and commands to build an executable from it.

  • lilypad [she/her, it/its]
    ·
    20 hours ago

    Its not windows or NASM but this site has some 64 bit linux examples using gnu assembler (the gnu userland default assembler). You could probably find some examples for windows with nasm if you look around.

    example code from the site 
    # ----------------------------------------------------------------------------------------
# Writes "Hello, World" to the console using only system calls. Runs on 64-bit Linux only.
# To assemble and run:
#
#     gcc -c hello.s && ld hello.o && ./a.out
#
# or
#
#     gcc -nostdlib hello.s && ./a.out
# ----------------------------------------------------------------------------------------

        .global _start

        .text
_start:
        # write(1, message, 13)
        mov     $1, %rax                # system call 1 is write
        mov     $1, %rdi                # file handle 1 is stdout
        mov     $message, %rsi          # address of string to output
        mov     $13, %rdx               # number of bytes
        syscall                         # invoke operating system to do the write

        # exit(0)
        mov     $60, %rax               # system call 60 is exit
        xor     %rdi, %rdi              # we want return code 0
        syscall                         # invoke operating system to exit
message:
        .ascii  "Hello, world\n"
    • Tomorrow_Farewell [any, they/them]
      ·
      19 hours ago

      Unfortunately, I am looking specifically for examples for Windows. I need to figure out what I'm doing wrong.

      You could probably find some examples for windows with nasm if you look around

      I have looked around, and I have not found any working examples of such. That is exactly why I'm asking.