Re: DOS or CP/M for 486 build ?
Posted on 2018-06-18, 09:58
A new video about CP/M-86 is now online. https://youtu.be/QjbuVfOYlsw Enjoy! 😀
Re: Art of CGA
Posted on 2018-06-18, 08:11
Thanks a lot for this awesome program, reenigne. May I ask you a question ? It's related to CGA but not completely on-topic: Is it possible to fix an original CGA card's logic to display 4 colours in 640x200 resolution mode ? I don't know where I read this, but from what I remember, IBMs address …
Re: ISA RAM card, my easter project
Posted on 2018-06-18, 04:05
Jo22 wrote: Sorry to keep you waiting. [..] Just want you to know this project is still alive.
Re: Dynamic Drive Overlay DVD Drive Problems
Posted on 2018-06-18, 04:03
Hmm. Strange. That's one of these reasons I tend to stay away from DDOs, though. I'd recommend upgrading the BIOS to the latest version (in order to get support for larger drives) or to use XTIDE Universal BIOS. XTIDE Universal BIOS can be easily installed on a network card (whch, however, also …
Re: FlashFloppy, an open source firmware for Gotek drives
Posted on 2018-06-17, 22:10
Ah, yes. I remember there was that USB method, too. ^^ I went the USB-Serial route however. Or USB-TTL route, more correctly (+3,3v or +5v). I reported back my experience at https://www.vogons.org/viewtopic.php?p=645326#p645326 That beeing said, a true serial port from a 486 -without a converter ( …
Re: Sound Blaster 2.0 project & IRQ from OPL2
Posted on 2018-06-17, 21:43
Can anyone suggest any game or other app for DOS which uses high-speed DMA transfer mode of Sound Blaster 2.0 (23kHz - 44.1kHz / 8-bit PCM)? Well, I would if if I knew. As a wild guess, I'd say SB 2.0 driver or TB driver on Windows 3.1 if an app (a game, MOD4WIN, etc) is using 22KHz or 44KHz …
Re: Various errors with some floppy disk-based games, I need some help here!
Posted on 2018-06-17, 21:28
I agree, Hiren's Boot CD is quite good. I'm using it from time to time, too. :) Something else, though: The crash in the second picture isn't that unusual. DOS/4GW is a Protected Mode Extender and is meant to be run from pure DOS, not from within Windows 9x. It may work from there, but that's not …
Re: Art of CGA
Posted on 2018-06-17, 21:08
Thank you very much, it works now. On XP, even. 😀 Filename fluffy_out.png File size 411.98 KiB Views 1942 views
Re: Art of CGA
Posted on 2018-06-17, 12:13
You, too ? I can't figure out how to fix my installation of Visual C++. Anytime I try, I fail. 🙁 I'm running XP and Win 7. Other prorgrams sometimes work, if I manually download a missing file and copy it in the program's folder.
Re: PAS16 disables DVD Drive in 486
Posted on 2018-06-17, 03:25
Here's the rest of it. I hope I had selected all the relevant stuff related to SCSI configuration. The last photo also shows an overview about the PAS16 resources..
Re: PAS16 disables DVD Drive in 486
Posted on 2018-06-17, 03:22
Update. Found a PAS16 manual. It's not my old one, though. This one talks amout LMSI, whatever that means. 😕 Anyway, maybe it is somehow useful..
Re: PAS16 disables DVD Drive in 486
Posted on 2018-06-17, 02:52
Hmm. I never "disabled" the PAS16' SCSI controller. Is there a jumper for that Trantor controller chip even ? PAS16 settings were fully software-selectable, I recall. Except for the Board ID and DMA jumpers. What we need to have is to check the manual.. Here's also a big thread about PAS16, maybe it …
Re: DOS or CP/M for 486 build ?
Posted on 2018-06-16, 04:07
Or run CP/M-80 programs through Z80.CMD via CPM.EXE on DOS Plus. 😎 (* http://www.cpm.z80.de/download/cpmemu.zip)
Re: DOS or CP/M for 486 build ?
Posted on 2018-06-15, 06:30
Is it possible to install CP/M on a 486 computer ? I don’t even know where to get CP/M but it sounds intriguing. I would like to install it on my IBM 486 PS/1 computer. Is this possible ? Yes. There was a modified copy of CP/M-86 with 1.44MB floppy drive support and RTC(AT) support. It's described …
Re: Advantages of DOS 6.22 + Windows 3.11 over Win98
Posted on 2018-06-15, 06:12
^I remeber GPFs, but from my memory, Win 3.1 did recover from that when it happened. For 9X/NT GPFs were a more serious issue, I believe. In my defence, I was running it in 16-Bit protected mode only (real-/protected mode drivers only, no VXDs).
Re: Question about Windows versions
Posted on 2018-06-14, 13:42
TBH you can build a nice late Socket 7 or a Pentium II rig and put two hard drives in it (or one larger one and partition it). One will have DOS 6.22 + WfW 3.11, the other will have 9x. Multibooting handled by a boot utility like System Commander 7. That way you can do more with one rig, less …
Re: Need advice on ibm ega 5154 crt, fuzzy washed out picture
Posted on 2018-06-14, 05:33
Do you think a bad diode could cause the monitor to function with an excessive blur, but otherwise everything else seem to function ok? I'm sorry, I do know too little about monitor electronics to answer that. :( It was just an idea anyway. From my experience, diodes are sneaky, that's why I …
Re: Need advice on ibm ega 5154 crt, fuzzy washed out picture
Posted on 2018-06-14, 03:22
I got a 5154 that wouldn't turn on at all. Took it apart and litterally recapped every single cap on all boards. I see. Did you also replace any diodes or resistors, too ? I'm not sure if these two things are related, but when I repaired old stuff like PSUs, failing diodes where the second biggest …
Re: Advantages of DOS 6.22 + Windows 3.11 over Win98
Posted on 2018-06-14, 03:02
I'd say that Win98 gives you the following advantages: Better networking support (More supported NICs including WiFi, easier file sharing, better internet compatibility) FAT32 support which removes 2GB partition and 7.something GB total hard drive limit Some games and some sound cards actually …
Re: Question about Windows versions
Posted on 2018-06-13, 15:58
Hi I'm building a PC for MS-DOS retro gaming. I was thinking in making it a mixed DOS/Win98 build, but as some later Win98 games won´t run well on the PC I'm building, I'd rather going to make this one only pure MS-DOS, and build later another one for Windows 9X Your idea sounds fine to me. :) The …
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