Search found 9 matches

by Arkaium
Tue Feb 02, 2021 3:37 am
Forum: PC 486SX (ao486)
Topic: Occasional Freezing
Replies: 13
Views: 6479

Re: Occasional Freezing

I wonder if it’s sound driver related. In Xanth, yes it seemed to always freeze when something was supposed to load. I may go back and play a bit more of it with adlib music only, just to see if it's stable. But it's happened with every memory option, and it's happened in different games... it seems really weird to me it would just be a CPU emulati...
by Arkaium
Thu Jan 21, 2021 6:25 am
Forum: PC 486SX (ao486)
Topic: Occasional Freezing
Replies: 13
Views: 6479

Re: Occasional Freezing

I highly doubt it’s temperature related considering it has happened within the first few minutes of starting the system up and running a game.

Is there a good stress test, maybe the most demanding functional core, I could play for 30 min plus to rule out whether it's temp or not?
by Arkaium
Tue Jan 19, 2021 5:46 pm
Forum: PC 486SX (ao486)
Topic: Occasional Freezing
Replies: 13
Views: 6479

Occasional Freezing

Hi all, I've had the ao486 core hang/freeze on me a few times, it seems like regardless of how well a game is running, eventually it'll hang. I'm using the Flynnsbit DOS98 Boot VHD modified to allow me to use my own D: VHD, and I've mainly been using the HIRAM option at 90mhz. It's happened on Sierra adventure games, it happened on Companions of Xa...
by Arkaium
Thu Dec 17, 2020 7:38 pm
Forum: PC 486SX (ao486)
Topic: Minimal option for refining a vanilla DOS 6.22 install?
Replies: 16
Views: 6373

Re: Minimal option for refining a vanilla DOS 6.22 install?

I think extended partitions were only needed when the physical drive was larger than the max partition size. To that end, I think using VHDs that fit into single partitions, and using primary partitions on all the drives would be simplest. Thank you. I think I just fundamentally misunderstood what primary meant. Could I have two primary partition ...
by Arkaium
Thu Dec 17, 2020 3:53 pm
Forum: PC 486SX (ao486)
Topic: Minimal option for refining a vanilla DOS 6.22 install?
Replies: 16
Views: 6373

Re: Minimal option for refining a vanilla DOS 6.22 install?

Some light reading on partitions: https://www.rigacci.org/docs/biblio/online/firmware/fdisk.htm https://www.win.tue.nl/~aeb/partitions/partition_types-1.html IIRC , DOS 3.3 could only have up to 32mb partitions (FAT16). For example, if you had a 80mb hdd, you could have a 32mb primary partition (C:), but then an extended partition for the rest of ...
by Arkaium
Wed Dec 16, 2020 4:03 pm
Forum: PC 486SX (ao486)
Topic: Minimal option for refining a vanilla DOS 6.22 install?
Replies: 16
Views: 6373

Re: Minimal option for refining a vanilla DOS 6.22 install?

But its not enough to boot from some floppy and use FDISK, you need to boot with the type of DOS you want to use on that disk, so you can use it to format the VHD as a bootable system disk. After that you can copy all the files. I do not think there is any actual install disks for DOS 7.1, so it has to be done manually. DOS 7.1 is just part of Win...
by Arkaium
Tue Dec 15, 2020 4:53 pm
Forum: PC 486SX (ao486)
Topic: Minimal option for refining a vanilla DOS 6.22 install?
Replies: 16
Views: 6373

Re: Minimal option for refining a vanilla DOS 6.22 install?

You can just make a new bootable VHD. Here is a list of premade VHDs in this thread: https://misterfpga.org/viewtopic.php?f=13&t=981&p=8282&hilit=vhd+images#p8282 After they are partitioned, and I think all of these are already partitioned. If you format it with... I think its format d: -s -q it should become a system disk that is quic...
by Arkaium
Mon Dec 14, 2020 3:30 pm
Forum: PC 486SX (ao486)
Topic: Minimal option for refining a vanilla DOS 6.22 install?
Replies: 16
Views: 6373

Re: Minimal option for refining a vanilla DOS 6.22 install?

The top 300 collection Flynnsbit has made is based on DOS 7.1 which is also why it has that nice boot logo. Its just a replacement for the Windows 98 boot image. I can recommend taking that and just not using the second VHD, then you should be able to use that for booting DOS games in general, manually from the DOS prompt, and it should give you d...
by Arkaium
Mon Dec 14, 2020 6:17 am
Forum: PC 486SX (ao486)
Topic: Minimal option for refining a vanilla DOS 6.22 install?
Replies: 16
Views: 6373

Minimal option for refining a vanilla DOS 6.22 install?

First off, this core and the fast progress it’s made are AMAZING. I got my MiSTer setup this past week and ao486 was one of my first stops and I cannot believe how simple and easy it is to zip around IMGs, VHDs, and ISOs. While I’ve downloaded the Top 300 collection by Flynnsbit, I’m not really keen on using a launcher like Exodos. I love the exper...