macOS M1 pro assembly tutorial ❤️

ARM64 M1 macbook기준

https://github.com/below/HelloSilicon

GitHub - below/HelloSilicon: An introduction to ARM64 assembly on Apple Silicon Macs

as first.asm -o hello.o 

.o 파일 만들로 ld로 만들면 나옴
https://smist08.wordpress.com/2021/01/08/apple-m1-assembly-language-hello-world/


macos M1 assembly compile 힌트
https://www.reddit.com/r/asm/comments/m8rsjt/apple_m1_assembly_helloworld_fails_to_compile_can/

Apple M1 assembly helloworld fails to compile, can anyone suggest what i am doing wrong ?

힌트2
https://www.reddit.com/r/asm/comments/v66dvh/bus_error_when_trying_to_run_compiles_arm64_asm/?utm_source=share&utm_medium=ios_app&utm_name=iossmf

Bus error when trying to run compiles arm64 asm on m1 macbook

https://stackoverflow.com/questions/69974380/how-to-compile-arm-assembly-on-an-m1-macbook

How to compile arm assembly on an m1 macbook

as
말고 다른 방법을 assembly코드를 캄파일 하는 방법 해보자
https://smist08.wordpress.com/2021/01/08/apple-m1-assembly-language-hello-world/

Apple M1 Assembly Language Hello World

https://www.reddit.com/r/asm/comments/tr044x/learning_arm64_assembly_need_help/?utm_source=share&utm_medium=ios_app&utm_name=iossmf

Learning ARM64 Assembly. Need help!

Learning ARM64 Assembly. Need help!

**--SOLVED--**

Hi everyone!

I've just started learning Assembly on my M1 Mac and I was suggested to use [this github repo](https://github.com/below/HelloSilicon) as a reference.

I succeeded in printing out a string, and now I'm trying to figure out how to sum two values and output the result.I came up with this code:

 .global _start 
 .align 2 
 
 _start: 
 mov X3, #0x2 
 mov X4, #0x5
 add X5, X3, X4 //put X3+X4 in X5
 
 //print
 mov X0, #1 //stdout
 add X1, X5, #0x30 //add '0' to X5 and put result in X1
 mov X2, #1 //string size is 1
 mov X16, #4 //write system call
 svc #0x80 
 
 //end
 mov X0, #0 
 mov X16, #1 //exit system call
 svc #0x80

.global _start
.align 2

_start:
mov X3, #0x2
mov X4, #0x5
add X5, X3, X4 //put X3+X4 in X5

//print
mov X0, #1 //stdout
add X1, X5, #0x30 //add '0' to X5 and put result in X1
mov X2, #1 //string size is 1
mov X16, #4 //write system call
svc #0x80

//end
mov X0, #0
mov X16, #1 //exit system call
svc #0x80

What I'm trying to do here is to:

1. put arbitrary values into X3 and X4 registers
2. sum those two values and put the result in the X5 register
3. convert X5's value into ASCII by adding 0x30 (or '0')
4. use stdout to print the 1 character long string

But, unfortunately, it doesn't work: it executes correctly but doesn't output anything. What am I doing wrong here? Any clarification is highly appreciated!

Thank you so much! :)

\----------

ps: this is the makefile I'm using:

addexmp: addexmp.o
ld -o addexmp addexmp.o -lSystem -syslibroot `xcrun -sdk macosx --show-sdk-path` -e _start -arch arm64

addexmp.o: addexmp.s
as -arch arm64 -o addexmp.o addexmp.s

I'm executing it from terminal using "make" command and then "./addexmp".

​

**-- SOLUTION --**

Following the advice provided by u/TNorthover, I stored the char in the stack with

str X5, [SP, #0x0]

and then used SP as the parameter for the X1 register.

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i시리즈 계열
intel cpu

https://www.reddit.com/r/asm/comments/u5n5io/starting_with_assembly/?utm_source=share&utm_medium=ios_app&utm_name=iossmf

Starting with Assembly

an asssembler for the x86 CPU architecture portable to nearly every modern platform,
https://www.nasm.us/

NASM

x86만 ㅜㅜ
https://medium.com/@thisura1998/hello-world-assembly-program-on-macos-mojave-d5d65f0ce7c6

‘Hello World’ Assembly Program on macOS Mojave

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mac M1 컴파일 가능한거 찾아보자 ㅜㅜ




Assembly Language Programming with ARM
https://youtu.be/gfmRrPjnEw4

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내가 공부하려고 정리
한글강의Assembly언어001(Arm64)_ld_as_C언어_Assembly언어로 변환 #assembly
https://youtu.be/9yt1Enp4EwU

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