1) LIS.cond2s contains some suggestions about trivial improvements which
   would improve the quality of the code by a fair bit.


2) LIS.csieve is a disassembly of the sieve benchmark run through NORCROFTs
   C compiler - which does a dataflow analysis to see if it can keep
   variables in registers throughout a procedure.  The code for the
   identical version of the sieve in Imp is in LIS.sieve - NORCROFT's
   code wins hands-down, although the Imp code could be improved by
   simple live/dead analysis at a local level, with delayed storing of
   variables and moving invariants out of short loops.


3) After observing the quality of the NorCroft C, I put the conditional-test
   file through it (after translating to C) - it produced almost exactly
   the code I generated by hand...

 Name                    Last modified      Size  Description
 README                  2008-10-12 00:24  795   
 ccond2s.lis             2008-10-12 00:24  4.7K  
 cond2s.c                2008-10-12 00:24  2.4K  
 cond2s.dec              2008-10-12 00:24  327   
 cond2s.imp              2008-10-12 00:24  2.8K  
 cond2s.lis              2008-10-12 00:24  8.3K  
 csieve.lis              2008-10-12 00:25  3.7K  
 d.dec                   2008-10-12 00:24  704   
 d.exe                   2008-10-12 00:24   19K  
 d.imp                   2008-10-12 00:24   48   
 dd.imp                  2008-10-12 00:24  4.2K  
 decarm.imp              2008-10-12 00:25   16K  
 decode.exe              2008-10-12 00:24   60K  
 decoder.imp             2008-10-12 00:24   18K  
 dectags.imp             2008-10-12 00:25  381   
 edit.exe                2008-10-12 00:24   31K  
 encode.imp              2008-10-12 00:24  658   
 imp77.exe               2008-10-12 00:24  221K  
 implib.a                2008-10-12 00:25  130K  
 intmath.aof             2008-10-12 00:24  912   
 intmath.dec             2008-10-12 00:24  289   
 intmath.imp             2008-10-12 00:24  220   
 link.exe                2008-10-12 00:25  108K  
 map.dec                 2008-10-12 00:24  288   
 map.imp                 2008-10-12 00:24  229   
 mydec.dec               2008-10-12 00:24  768   
 mydec.exe               2008-10-12 00:24   34K  
 mydecv0.imp             2008-10-12 00:24  4.9K  
 realmath.src            2008-10-12 00:24  255   
 savedecarm.imp          2008-10-12 00:24   12K  
 sieve.c                 2008-10-12 00:24  562   
 sieve.dec               2008-10-12 00:24  298   
 sieve.exe               2008-10-12 00:24   31K  
 sieve.imp               2008-10-12 00:24  638   
 sieve.lis               2008-10-12 00:24  5.4K  
 static.aof              2008-10-12 00:24  604   
 static.c                2008-10-12 00:24  115   
 static.dec              2008-10-12 00:24  291   
 static.imp              2008-10-12 00:24  232   
 temp1.tmp               2008-10-12 00:25  5.7K  
 temp2.tmp               2008-10-12 00:25  3.5K  
 triglog.src             2008-10-12 00:24  261   
 z.txt                   2008-10-12 00:24   78   
 zzz.txt                 2008-10-12 00:24  3.1K