On 3/19/2017 9:47 AM, Adam Sampson via cctalk wrote: If anyone knows who owns the site, I have a small smidge for the reference page about Jumper 18 on the AT 5170 motherboard. It is set to make the motherboard memory decoder drop out half of the 512K from decoding as memory as well as disabling the memory if there is any. you put this option in to do the disable when you install the AT/370 card. It has 256K on board which fills in the other 256 K. When the 370 is running there is no difference in the operation of any software, as the dual ported memory is just memory to the AT. If you have a 256K AT this is a rare and exotic memory expansion board for all intents an purposes. The hosting software handles the dual memory as it needs. When the hosting software is running, and you have an IBM 3270 card which is compatible with the regular 3270 remote access software, you can either run that software and have a CUA connection over the 3270 coax to the mainframe, or a DFT session if you have that software. If you have the AT/370 software running there is a function key action which switches between a 3270 CUA session with your mainframe, which if you want it to be very useful should be VM of some sort (we has VM/SP5) running. With that session running you can file share with the mainframe's minidisks, initiate IND$FILE uploads and downloads from elsewhere (similar to FTP for the most part), and have a CUA VM session logged in. You can flip the PC to a CP / CMS session on your local 370 PC system as well. It sees both the local disk 30mb (unless you finagle the host software, about the limit), or you can map mainframe minidisks to your local VM, which is the real payoff. And there is a DOS session running in the smige off memory left, so you can copy files to / from the 30mb local AT disk (pretty much all you got room to run). And you can set up the printer port on the AT to be a legitimate 3270 printer if you have the mainframe 3270 port config generated to have a printer there. Would love to archive the entire site, it seems to have a lot of great well organized information. Anyway at length someone might want to put the purpose of J18 (or one use of it) in that page. thanks jim

On 3/20/2017 10:33 AM, Glen Slick via cctalk wrote: Will try that. Limited success with that forum. Not critical of them, just my style doesn't run with how they do. I need to study if there is a way to get push feed from interesting threads or such. I don't peruse much on sites anymore, and prefer to have an RSS feed or such and scan that with one liners or so. I don't recall finding that, though I may have a registration. thanks Jim