scsh on modern s48

Hi everyone,
I've been working on porting scsh to a modern scheme48  to get 64bit
support and all the other nice things that've been added to it in a
decade, and it's now in a semi usable state. The code is here
<http://ccs.neu.edu/home/roderic/arbeit/scsh> (it's a mercurial repo,
so hg clone http://...). It's deployed in the form of an s48 image,
some object files and small startup C program that calls the s48 vm.
You'll need the development version of s48
<http://www.s48.org/cgi-bin/hgwebdir.cgi/s48/> to build and run it.

There's still quite a bit of breakage, and a lot of hacks were used to
get it to this point that'll have to be rethought, but hopefully this
will at least spark some interest.

-Roderic