Berkeley RISC[-I,-II, -III (SOAR), -IV (SPUR)] all used register windows, and SPUR was specifically designed to run Common Lisp. There is a paper [1] on the des

Berkeley RISC[-I,-II, -III (SOAR), -IV (SPUR)] all used register windows, and SPUR was specifically designed to run Common Lisp. There is a paper [1] on the design of SPUR Common Lisp. [1] https://www2.eecs.berkeley.edu/Pubs/TechRpts/1987/CSD-87-373.pdf https://www2.eecs.berkeley.edu/Pubs/TechRpts/1987/CSD-87-373...