From: notsaying@nospicedham.invalid.org   
      
   "wolfgang kern"  wrote in   
   news:omai2q$1csd$1@gioia.aioe.org:   
      
   > Kerr-Mudd,John wrote:   
   >   
   > [about hex..]   
   >>>> I already tried this because my favourite is hex, but it needs the   
   >>>> conditional Sub,7 which will cause one more modify point.   
   >   
   >>> Simple enough using 2:1, as I've already done that:   
   >   
   >>> ZRPRht0XPR5t1PRRjW4iPaSV5LU1GK1GMUX+G=1GfUXG8+r6238wct083t+R=rY=   
   >>> 66UZ2202Zffffff0222F6====MJ=20=17===eeee+++slOBI9UnrAE7oAOnasfrM   
   >>> ItvlpB9EEE7D8KaasWhfr8TreEGB9fr8Tw7h8v7a7sCjejeoAlpadITi8YoH9f7=   
   >>> B409BA0801CD21C348656C6C6F20776F726C642124=   
   >   
   >>> Only 3 lines of code (could be shortened a bit no doubt, and   
   >>> requiring a terminal '=' is just 'cos it's the same 'test for end'   
   >>> code from the B64 decoder!)   
   >   
   >> I'm still here; still struggling with a pure B64 char with fixups   
   >> that's similar to WK's shortest B64 decoder. (initial setup, main   
   >> loop enclosing fixups, then decoder routine [moved to early PSP]).   
   >   
   >> It's tantalisingly close to doable!   
   >   
   >:) it's sure possible to get rid of all the filler bytes, even with   
   >:B64.   
   >   
      
   I now have something that works, but I haven't "newline"-proofed it.   
   213 bytes of pure B64 (if you allow crlfs). Quite a struggle to get the   
   fixups working; that and avoiding invalid fixup addresses (e.g. the 5A to   
   61 gap). If/when I overcome that last problem I'll post it here.   
      
      
   > me too tried some variations of Terje's 16:13 code which needs too   
   > many SMC-points so it's prone for a 2:1 prologue, and I also checked   
   > on 5:4 which become a few bytes less (177+27) than the B64 decoder.   
   >   
   > And both 16:13 and 5:4 encoding may be a good choice for mailing   
   > binaries as text (better than this Big Endian 4:3 Base64 anyway).   
   > But it would need an agreed format, so that the transfered code can be   
   > stored and reviewed before execute and not just run like our examples   
   > do.   
      
   Next project!   
      
   __   
   > wolfgang   
      
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