Dan, The .do disk is the main Logo environment, used to write and run Logo programs. This is what would need to be patched and therein is the rub. As we both discovered, ciderpress will not read the .do file because it is a custom format. I'm starting to suspect that it was developed with some sort of intermediate system similar to p-system. Evan, It depends on what your ultimate goal is, the two of which seem to be opposed. On the one hand, we want to overcome the limitations of Logo, however that language is not ideal for interactive applications. On the other hand, we want to make it accessible and simple, like Logo. I'm not sure we can have both. Writing a custom Logo is a task that is beyond our grasp here. Our best best is to use basic on the IBM to see if we can accomplish the things we want and try to illustrate the programming concepts as simply as possible. The approach should become apparent as we progress. Dean On Tue, Jan 17, 2017 at 10:52 PM, Dan Roganti via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
On Tue, Jan 17, 2017 at 7:06 PM, Evan Koblentz via vcf-midatlantic < vcf-midatlantic@lists.vintagecomputerfederation.org> wrote:
This is getting to be what may be an insurmountable challenge. The Logo in
question is Lego Logo, and the disk is in a non-standard format, as I discovered when I tried to convert it with ciderpress (I wanted to use a very nice disassembler I found for the IIgs). The disk is self booting, so even if I can get the code into a disassembler, writing changes back to a usable format is going to be a major challenge. So far I have not found a way to do it.
Changed subject line to match thread fork.
which disk are you referring to ? this webpage shows there's 3 diff software disks available They have the first two archived on there So you can examine the disk images with ciderpress I just tried the 1st software disk on there called Lego Lines, I can view the Basic files as well as the machine code file (*.bin, *.sys) The 2nd software disk on there is called Lego TC Logo That one has a bunch of pdf files with instructions, plus another file which appears to be a disk image but I'm not sure, its *.do file but I couldn't open it with ciderpress, so I don't know yet what's in there The 3rd software disk they mention, but not archived there, is called LogoWriter Robotics http://lukazi.blogspot.com/2014/07/lego-legos-first- programmable-product.html Dan