SR Program in PPC ROM MOD File

[rprosperi]

(02-13-2015 12:33 AM)Dave Frederickson Wrote:  I think that's Shorten Return Stack.

HP-41C SR/LR/UD/HD (Stand Alone)
HP-41C Routine Listing of 8K PPC Custom ROM SR
PPC ROM Pocket Guides See p.27 of the 1985 edition.

Thanks for your typically thorough demo of the power of Google search Dave!

SR was indeed a part of the normal PPC ROM, one of the about 100 functions that comprised the ROM made by PPC. This SR can be seen by doing a normal CAT2 and stepping thru the individual programs.

In the PPC .MOD file in question, the normal PPC ROM (installed in Port-1 in my config) has the PPC ROM installed in Page 8, and "SR" in Page 9, seemingly another entire ROM image.

Perhaps there was a bug in the process of assembling the ROM, and the glitch caused a partial "ghost"?

Anyone?