Assembly Lab: 8086 NASM IDE

Full support for CALL far and JMP far control-flow assembly, far pointers now accept labels and constant expressions, and segment register error messages are clearer.

AssemblyLab is a powerful x86 16-bit real mode assembly language simulator designed for iPhone, iPad, and Mac. No complex setup required — learn and practice assembly programming anywhere, anytime.

【CORE FEATURES】 • Complete x86 16-bit CPU emulation with 60+ instructions • NASM syntax assembler — write and run instantly • Real-time disassembly view to understand machine code • Full 1MB memory space, authentic real mode simulation

【POWERFUL DEBUGGING TOOLS】 • Set breakpoints and step through code • Live register monitoring (AX/BX/CX/DX/SP/BP/SI/DI) • Visual FLAGS indicator display • Memory browser with hex view and editing • Execution log to trace every instruction

【BIOS/DOS INTERRUPT SUPPORT】 • INT 10h Video Services: cursor control, character output, screen scrolling • INT 21h DOS Services: keyboard input, string output, program termination

【LEARNING-FRIENDLY】 • Built-in example programs from Hello World to algorithms • Syntax-highlighted code editor • Console output for immediate feedback • Load and run .COM files

【CROSS-PLATFORM EXPERIENCE】 • iPhone: optimized portrait layout • iPad: split-view interface for the big screen • Mac: native support with keyboard shortcuts

Perfect for:

• Computer Science students
• Operating Systems course learners
• Reverse engineering beginners
• Retro computing enthusiasts
• Developers curious about low-level programming

AssemblyLab is your ideal companion for exploring how computers really work at the lowest level.

Download now and start your assembly journey!