How to convert C++ code to ARM32 or ARM64 assembly

Posted by AndnixSH

Godbolt, also known as “Compiler Explorer,” is a web-based tool that allows developers to write, compile, and analyze code in various programming languages, such as C++, Rust, Go, and more.

Let’s get started converting C++ code to ARM32/ARM64

Visit one of the following official website

By default, the editor opens with a sample C++ program

On the left side of the screen, you can write or paste your C++ code.

Above the code editor, there is a drop-down menu where you can select the compiler you want to use. By default, the compiler uses x86_64 gcc XX.X. Select “ARM64 gcc trunk” or “armv8-a clang (trunk)” for arm64-v8a, or “ARM GCC trunk” for armeabi-v7a

On the right side of the screen, you’ll see the assembly code that is generated from your high-level code. This output updates in real-time as you type or modify your code.

In this example, I convert float to ARM64

1723731249348.png

To convert assembly to hex, use ARM converter. Paste the ARM assembly into the text box and you will get the hex output

1723731276889.png

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