>>>>> "Richard" == Richard Fateman <fateman@cs.berkeley.edu> writes:
Richard> Here is the best argument I know: occasionally the LM or PDP-10
Richard> code has some information, like the best way to write this code
Richard> in assembly language for PDP-10, or how neat the LM code would be
Richard> and isn't it too bad that it couldn't be done in Common Lisp
Richard> this way...
Richard> Even given that argument my tendency would be to delete
Richard> PDP-10 or Lisp Machine -only code to improve readability,
Richard> when revising a program, especially since it could not
Richard> be tested on those machines (ever?).
Perhaps a reasonable approach would be to leave those interesting or
cute historical items in the sources.
But turn them into comments so that it's very clear that they're not
used.
Ray