<Yes, although you could consider "P-code" to be a lower level. It is lower level. <> But why would anyone want something that was microcoded to run Pascal? < <Speed mostly, that and ease of use with compilers. P-code is not Pascal. It's a platform that all Pascal P-compilers grind code to. Speed wise it was slow as the Pcode was interpreted on all but the WD Pascal microengine. Why was it done? In the late 70s Pascal was emerging as a teaching language and it was highly standardized. Most small systems had the resources to run it as native compiled but the authors (UCSD) decided that portable Pcode would allow more platforms to run it as the Pengine was easier to code than a whole compiler. The additional part was the P-system was an integrated system with all the tools (all written in pascal) for editing, compiling and running programs. It was a good teaching environment as it isolated the user form the machine very well. the entire environment was menu driven and integrated. I have a NS* that runs the z80 version. Allison