learning-masm-x64

My personal training repo for learning x86-64 assembly language with MASM on Windows.

I'm following The Art of 64-Bit Assembly by Randall Hyde. Each folder is a small exercise I wrote to practice what I learned. The assembly functions are called from a short C++ program that prints the results.

Exercises

• character-stats — stats of different sizes added together with movzx / movsx; functions return their result in EAX.
• comparisons — maxOf, minOf, and boolean comparisons (isEqual, isGreater, ...) built with cmp and conditional jumps.
• loops — sumTo, factorial, countEven, power, built with a label and a jmp back up.
• call-stack — addSquares and cube calling square, with call, the stack, push / pop, and extern between files.

How to build

Open x64 Native Tools Command Prompt for VS, go into an exercise folder, then:

ml64 /c file.asm
cl /EHsc main.cpp file.obj
main

• ml64 /c assembles the .asm into an .obj
• cl compiles the C++ and links it with the .obj
• the last line runs the program

Tools

• MASM (ml64) and MSVC (cl), from Visual Studio
• Windows x64