I've been contacted a few times about these, so here they are. They are raw disk image read/write utilities from Microsoft. Unsure of where I got them, but they were not "internal" utilities.
Thanks Larry. The author said to me that his emulator supports only the 4FDC, so I suspect the images I happen to be trying to use from Deramp may be for the 16FDC? Not 100% sure yet, but the author is checking it out to see.
Rich
Unfortunately I don't have my imaging setup setup so I can't test it. What I can say from using IMDV on those images is that its a straight 16*512*154 images without the FM Track 0. I'm going to look for other copies of the assembler and see. I'm using this for the Seattle Computer 86-DOS...
Will do. I just grabbed a version of CDOS 2.58 from Dave Dunfield's site, converted it, and it ran just fine. It must be an issue with the way those disks had been converted. That disk is the same format as what the emulator author used -- CP/M FM track 0, MFM for the rest.
No, I didn't examine it yet. Let me do that. Looks like Track 0 is also MFM 512 bytes rather than FM 128 bytes and the chromix header starts at sector 2.
I grabbed a copy of SBASIC from bitsavers and converted it -- regular SSSD 26x128 -- and it works just fine in the emulator with using...
Yes, with and without the /E parameter. The file size that is produced (1182720) does not match the size of the flat file provided by the emulator (1256704) which is (1*26*128)+(153*16*512). I did message the author of the emulator to see if he's done this conversion before or it's quite...
All --
I'm attempting to use a Cromemco emulator (https://www.sydneysmith.com/wordpress/run-cdos/) as part of some work I'm doing with the 86-DOS project. The emulator seems to use only flat/binary files and I can't seem to get the ImageDisk incantation right to convert available CDOS disk...
It's me that's working with @new_castle_j on the reproduction board. I received the first run boards about 2 weeks ago, but had to trash them due to an unrepairable error with some of the traces. So, I'm working on a second run. I've had to do a few additional tweaks, so it's in trace...
There are some problems with the boards so I have to scrap them. Since I have to re-do the boards, I’m going over the schematic redraw again and the versions of the scanned schematics that are on-line are not the best – there’s highlighting on it, and some signal names are obscured. Does anyone...
I should note that I replaced the LM338K and LM317 adjustable regulators with the fixed equivalents and the associated resistors removed. The TO-3 was also upgraded to an EzSBC switching replacement.
As I'm building the board I noticed I used the wrong footprints for the resistors. So, I...
I’m not producing ready-to-run boards but the design files and PAL/ROMs are posted on my GitHub. I may have a limited blank board run made since 4-layer boards are costly to make in low quantities.
But, let’s make sure it works first :)