Dwight: I have a working N* Horizon system (dual drive, 56k RAM, monitor in ROM) and would be happy to lend my testing services. From time to time, I've wrestled with the same disk image manipulation issues for the Altair32 emulator, i.e., manipulating the disk image outside of the emulation environment itself. My conclusion was that there's no substitute for using the original OS for maniuplating the images. So, we developed several methods to move program files into and out of the emulator by using some home-grown and CP/M-native utilities and the file transfer functions of the terminal program on the PC. I really want to do an external "image management" program but haven't found a clean/easy way without essentially re-implementing portions of the base OS. Rich -----Original Message----- From: Dwight K. Elvey [mailto:dwightk.elvey@amd.com] Sent: Monday, May 05, 2003 5:23 PM To: cctalk(a)classiccmp.org Subject: Re: Northstar File Transfer from PC Hi Marvin Maybe this isn't exactly what you are looking for but I'm currently working on some software to transfer entire disk images through the serial port of a H89 to a PC. I have another friend checking out my first version, now. I hope to do a similar things for the N*'s as soon as I get one of these machines up and running ( on my list of things to do ). I suppose that once the image is on the PC, one can modify the image to include any new files, one wants and then transfer it back to the N*. It isn't a nice direct method but my main intent is to get some way to send disk images over the net and not specifically individual files. I haven't fiddled with the N* at all and don't know a lot about it. The H89 has a simple monitor that I use to hand enter a simple bootstrap program. With this, I bring in the rest of the code to run the disk drive. Does the N* have a ROM based monitor? I also have a similar setup for my Poly88 but that is setup for getting code into the Poly88 and tape from the PC. I used this to create code to do the various tape copying functions. I can read code from a cassette tape, transfer it through the serial to the PC and later feed it back through the serial to the Poly88 to write back onto tape. I use a similar bootstrapping code to get things started, through the Poly's monitor. Dwight