Microsoft Macro Assembler

The Microsoft Macro Assembler is an x86 assembler that uses the Intel syntax for Microsoft Windows. As of 2011 there was a version of the Microsoft Macro Assembler for 16-bit and 32-bit assembly sources, MASM, and a different one, ML64, for 64-bit sources only. References below to MASM include ML64 where appropriate. MASM is maintained by Microsoft, but since version 6.12 has not been sold as a separate product, but supplied with various Microsoft SDKs and C compilers. As of 2011, MASM 8.0 was available free of charge for download from Microsoft for non-commercial use only. It will only install if Visual C++ 2005 Express, also downloadable without charge, is already installed. The earliest versions of MASM date back to 1981. Up to...