HP-71 Compu-LS module

[Dave Frederickson]

(03-24-2017 02:34 AM)rprosperi Wrote:  

(03-24-2017 02:15 AM)Dave Frederickson Wrote:  What are you doing with 71 binary files in the DOS/Windows environment in the first place?

You're the one who asked about this, I'm just answering your question how to do this with aLIFhdr, LOL!

I only do this when I need to do a comparison of binary (LEX) files after assembling from source on the '71 using the FORTH/Assembler ROM. One long-term (read slow, low-priority) project is to recreate a source file for the NIBBLEX LEX file. Source for the various earlier PEEKLEX, UTIL, etc. versions exist, but I've not been able to find source for the later, HP-approved NIBBLEX, so I'm rebuilding it from a disassembly listing; once completed, I need to do a byte- (or nybble-) level comparison to ensure it's an exact (not just functional) match.

Well, it was a rhetorical question. I just wanted to discuss something I've been thinking of for a while and then Christoph mentioned aLIFhdr, so I brought it up.

Recently I extracted the entire OLDP in order to identify duplicates. It now occurs to me that it's possible that some duplicates may have gone undetected if they differed in only the last (garbage) nibble (for odd nibble sized files). Compared to the large number of duplicates in the archive this is probably a small number, so it's not a great concern.

Dave