On Jan 24, 2020, at 11:46 AM, Nelson H. F. Beebe wrote: > > That was fine for Fortran, which at the time had no concept of > recursion. However, Urs Ammann implemented a compiler for Niklaus > Wirth's Pascal language on a CDC 6400 (or 6600) in Zurich, and he had > to simulate a stack. See > > On Code Generation in a PASCAL Compiler > Software --- Practice and Experience 7(3) 391--423 May/June 1977 > https://doi.org/10.1002/spe.4380070311 > > I have read that article in the past, but don't have download access > from our academic library to get a copy to refresh my memory. https://www.research-collection.ethz.ch/bitstream/handle/20.500.11850/68668/eth-3056-01.pdf?sequence=1&isAllowed=y