That would be MACRO-32, the VAX assembler/assembly language dialect. As a considerable part of the VMS kernel is written in VAX assembly, they treat it as a hig

That would be MACRO-32, the VAX assembler/assembly language dialect. As a considerable part of the VMS kernel is written in VAX assembly, they treat it as a high level language and compile it to Alpha, IA64 and now x86-64. Other parts of the kernel are written in C (newer code) and BLISS (older code). See https://en.wikipedia.org/wiki/BLISS https://en.wikipedia.org/wiki/BLISS