MiSTer FPGA Forum

Thanks for the feedback! The big drawback of doing it on the DOS side is obviously speed of accessing all files and building the database. It's true that the AO486 core is comparatively slow. The md5sum Linux program running on MiSTer generates MD5 hashes about twelve times as fast as SAVIOR.EXE generates CRC-32 hashes: about 20 MB/sec vs 1.67 MB/s...

The main problem is Dos is quite limited and there were no standards: almost every game saved its data in its own way. Sure, something can be done, it's a lot of work, because each game must dealt with some custom treatment but, for example, it might be possible to do something like this, see two possible approaches: 2) Using the Shared folder. Ch...

Now in Beta Please check github for the latest info and the beta release. Original announcement follows: >! Introduction > >I've been working on a general, automatic solution to the problem of backing up and restoring save and config files for 0MHz-style VHD games for the AO486 MiSTer FPGA core. Here's a summary of how it works. > >A DOS program c...

which might mean that DOSBox expects VHD sizes to be multiples of 516096 (512 * 63 * 16) bytes. The source code for DOSBox and DOSBox Staging seems to confirm this. They don't even attempt to read the geometry data from the VHD, as far as I can tell. DOSBox-X does read the geometry data. When I used DOSBox-X for macOS, I was able to mount the Colo...

Could not extract drive geometry from image. Use parameter -size bps,spc,hpc,cyl to specify the geomettry. Does anyone know what the parameter values should be? It would depend on the size of the VHD file. I've also been trying to get these VHDs to work in DOSBox Staging, but with limited success. An earlier post in this thread showed some geometr...

This project is exciting! Thanks to the people who've been working on it! A few questions: Have you thought about using floppy images for some of the smaller games? Commander Keen, for example, fits comfortably on a bootable 720 KB floppy image, and I was even able to squeeze it onto a bootable 360 KB floppy. (I used MS-DOS 3.30a, deleted COMMAND.C...