🚀 go-pugleaf

In article <170500016@uiucdcsb>, robison@uiucdcsb.cs.uiuc.edu writes:
> 
> For languages without "upward funargs" (e.g. Pascal), a global display
> is sufficient, and furthermore requires only one extra push/pop per
> procedure call. 

Not true.  Procedure and Function parameters can access an environment
totally disjoint from the calling environment.  Hence, each such 
parameter requires its own display (or static link). 
-- 
Gordon V. Cormack     CS Dept, University of Waterloo, Canada N2L 3G1
                      gvcormack@waterloo  { .CSNET or .CDN or .EDU }
                      gvcormack@water         { UUCP or BITNET }