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flat assembler VS NASM

Compare flat assembler VS NASM and see what are their differences

flat assembler logo flat assembler

A fast and efficient self-assembling x86 assembler for DOS, Windows and Linux.

NASM logo NASM

The Netwide Assembler, NASM, is an 80x86 and x86-64 assembler designed for portability and...
  • flat assembler Landing page
    Landing page //
    2023-07-28
  • NASM Landing page
    Landing page //
    2021-10-11

flat assembler features and specs

  • Size and Speed
    Flat Assembler (FASM) is known for its small size and fast execution, making it an excellent choice for developers looking for efficiency in both development and runtime.
  • Low-Level Control
    FASM provides developers with in-depth control over the hardware, allowing for optimization and manipulation at a granular level, which can be critical for performance-sensitive applications.
  • Cross-Platform Capabilities
    FASM supports multiple platforms, enabling developers to write assembly code that can be compiled on different operating systems without significant changes.
  • Integrated Assembler and IDE
    It comes with an integrated development environment that simplifies assembling and linking processes, which can enhance productivity.
  • Extensive Documentation
    The assembler is well-documented with comprehensive guides, reducing the learning curve for new users and providing valuable resources for advanced programming.

Possible disadvantages of flat assembler

  • Learning Curve
    FASM requires a good understanding of assembly language and low-level programming, which can be a steep learning curve for beginners.
  • Limited High-Level Features
    As a low-level assembler, FASM lacks the abstractions and conveniences of high-level programming languages, which can make complex application development cumbersome.
  • Community and Support
    FASM has a smaller community compared to more mainstream programming tools, which can result in less available support and fewer third-party libraries.
  • Platform-Specific Optimization
    While cross-platform, achieving optimal performance can require platform-specific adjustments, adding complexity to the development process.
  • Debugging Difficulty
    Debugging assembly code can be challenging and time-consuming due to the low-level nature of the language and the increased possibility of hard-to-trace bugs.

NASM features and specs

  • Standardization
    NASM (Netwide Assembler) uses a standard and simple syntax that is consistent across different platforms and projects, making it easier for programmers to read and write assembly code.
  • Cross-Platform
    NASM supports multiple operating systems, including Windows, Linux, and macOS, allowing developers to write assembly code that can be assembled on different platforms.
  • Wide Compatibility
    NASM is compatible with numerous output formats such as ELF, COFF, and Mach-O, which makes it versatile for different types of development, including system-level programming and application software.
  • Open Source
    Being open source, NASM allows developers to contribute to its development or adapt it to fit specific needs, granting a high degree of flexibility and customization.
  • Active Community
    NASM has an active user and developer community, providing extensive support, resources, and regular updates that help address issues and enhance features.

Possible disadvantages of NASM

  • Low-Level Language
    Writing in assembly language, including NASM, is inherently low-level, making it complex and time-consuming compared to high-level programming languages.
  • Steep Learning Curve
    NASM requires a significant understanding of assembly language and computer architecture, which may present a steep learning curve for beginners.
  • Error-Prone
    Due to its low-level nature, development in NASM is prone to errors, such as memory management bugs, which can be difficult to debug.
  • Limited Use Cases
    While powerful, NASM is generally used for specific use cases like embedded systems, operating system development, or performance-critical applications, limiting its utility for general software development.
  • Maintenance Difficulty
    Assembly code is less maintainable over time compared to high-level languages, as it can be harder for developers to understand and update long after it was originally written.

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NASM videos

Why you should NOT get the NASM CPT || Certification

More videos:

  • Review - NASM CPT Certification | Chapter 1-20 Review |SHOW UP FITNESS PASS NASM GUARANTEED ONLINE INTERNSHIP
  • Review - NASM CPT review

Category Popularity

0-100% (relative to flat assembler and NASM)
IDE
37 37%
63% 63
Text Editors
38 38%
62% 62
Project Management
42 42%
58% 58
Email Marketing
34 34%
66% 66

User comments

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Social recommendations and mentions

Based on our record, NASM should be more popular than flat assembler. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

flat assembler mentions (1)

  • Show HN: Torque – A lightweight meta-assembler for any processor
    Oh neat! Thanks for the link, I hadn't heard of fasmg before. It looks like fasmg builds up from the byte level, so it would only work for architectures that use 8-bit words. Torque builds up from the bit level, so it can assemble code for architectures like in PIC microcontrollers, using word sizes of 12 or 14 bits. However, fasmg does allow a lot more control over the syntax of the language. The documentation... - Source: Hacker News / 20 days ago

NASM mentions (3)

  • How to improve at x86/C?
    Try https://nasm.us/ as a modern way to use assembly. Source: about 2 years ago
  • Help needed for asm related project
    Assembly is machine specific, have a look at NASM for a more generic assembly language. https://nasm.us/. Source: about 2 years ago
  • vcpkg now (finally) has site with search functionality
    I have a weird problem: when I try using vcpkg on my work laptop, it cannot download nasm. Instead of nasm, I get an HTML page that explains that I am kept safe and secure by CSIS who blocked downloads from this dangerous domain. Vcpkg barfs on the HTML file (as it should). Source: about 4 years ago

What are some alternatives?

When comparing flat assembler and NASM, you can also consider the following products

PCem - PCem emulates an IBM 5150 PC, several models of clones and successors, along with various graphics...

Yasm - Yasm is a complete rewrite of the NASM assembler.

86Box - 86Box is a hypervisor and IBM PC system emulator that specializes in running old operating systems...

LLVM - LLVM is a compiler infrastructure designed for compile-time, link-time, run-time, and...

Tiny C Compiler - The Tiny C Compiler is an x86, x86-64 and ARM processor C compiler created by Fabrice Bellard.

Pelles C - Pelles C for Windows