Re: A little compression...

[Harry Potter <maspethrose7@aol.com>]

On May 23, 11:43 am, Harry Potter <maspethro...@aol.com> wrote:
> I am in the process of creating a file compression program.  It
> already does better than PKZip's deflate/maximum technique, but I
> still have work to do on it.  It is a 32-bit technique, but I think I
> can manage on a 6502/C02, although very slowly.  My goal is an average
> 3:1 compression ratio.  If I succeed, would anybody here be interested?

News: It has a consistantly far better compression than WinRAR now,
but it is excruciatingly slow: about 20k/sec. on my WinVista
computer.  I need help optimizing it.  It is written in C++ and didn't
benefit noticeably upon converting some routines to assembler.  I
could use a few tips.  I am programming in Open Watcom 1.7 C/C++ for
Win32.

BTW, Jeff Blakeney: I think you're right about the 8/16-bit memory
issue.  Unfortunately, the program is very complex and compresses data
in four ways.  That would be hard to manage on a 6502.