NASMX

NASMX, or NASMX Assembler, is an extension of the GNU Assembler (GAS) that allows for assembly language to be assembled directly into the common object file format (COFF). It was designed to be used with the NASM (Netwide Assembler) software development tool. The primary goal of NASMX is to create a native assembler that can target COFF files, eliminating the need for intermediate object files.

Powered by the NASM software, NASMX has been primarily used to assemble specific revisions of Microsoft kernel-mode device drivers. This assembler is notable for its capabilities in handling COM and EXE files, along with its support for diagsort parameter tables. Additionally, NASMX can import data symbols and perform direct data segment management.

To further expand its functionality, NASMX has been occasionally updated to support additional features. For instance, one notable update introduced the assembly of in-place COFF debug information directly within the source code. This characteristic development has, as a result, helped facilitate the seamless creation of programs that concurrently support code debugging.

Some argue that NASMX provides an advantageous environment for creating and assembling specific types of executable files, possibly due to its detailed interface with the NASM software. Nonetheless, the primary area of utilization for NASMX lies within the realm of complex kernel-mode programming on Microsoft systems. Based on the revisions and updates included within its design, it appears likely that ongoing improvements will continue to drive its relevance in contemporary assembly development strategies.