altheos wrote: ↑Mon 23 Apr, 2018 9:23 am Interesting request though it's hard to find datasheet for theses cards. I hope they will be added to Pcem someday.

Yes, it is. Finding datasheets for these cards is difficult.

When IBM rolled out the Personal System/2 launch models 30, 50, 60 and 80 on April 2, 1987, these models had a integrated VGA chip. When VGA was introduced, IBM also introduced another display adapter, the IBM 8514/A . The 8514/A display adapter offered 640 x 480 pixels @ 256 colours and 1024 x 768 ...

As far as I know, if I try to boot from a floppy disk by selecting drive A from the disk to read from, it will throw a "General Failure reading drive A" error. Drive B works though. If I select to boot from drive C instead of drive A, then the PS/1 Model 2011 and 2121 will ready the floppy...

Thank you for reporting this. I've also reported that the floppies don't work at all on the PS/1 Model 2121 as well.

(I couldn't see what happened, because my router dropped my connection overnight and I had to reset it.)

Has anyone confirmed this? There is a bug involving the emulated Tseng Labs. ET4000 on PCem. I'm using a utility that came with the emulated Tseng ET4000 card called the Diagnostic Test Program (TVDIAG.EXE), a utility that tests the ability to select VGA, EGA, CGA or MDA modes. The VGA and EGA modes...

Thank you very much for explaining all of this.

I'm just curious to ask. Why does the IBM coprocessor test require bit accurate floating-point unit (FPU) emulation and what are the reasons why PCem (and its variants) will never support that feature?

SarahWalker wrote: ↑Tue 20 Mar, 2018 5:18 pm All the Cirrus Logic cards, both the Mach64s, all the S3 cards, the ET4000/W32p (Diamond Stealth 32) and the Trident TGUIs. UNIVBE should be able to enable LFBs on all of them.

Thank you for telling me. I appreciate it.

SarahWalker wrote: ↑Tue 20 Mar, 2018 9:51 am You might also have to use a newer graphics card that supports linear frame buffers.

That sounds like a good idea.

Does anyone have any idea which ISA and PCI graphics cards support linear frame buffers? Just curious to ask.

Happens on real hardware - VGAPaint looks to have buggy VESA 1.x code. It works with UNIVBE loaded, though you will have to delete the INI file so you can reconfigure the video mode. Thank you very much for telling me. I'll have to go for UNIVBE instead of UNIVESA. :) EDIT: Sarah, I tried UNIVBE an...

I get the hang on the same mode on all the Cirruses at least, on the Trio64 (which DOSBox's default is based on) and on interpreter so it doesn't seem to be Trident-specific. I'm with you on the same boat here. EDIT: VGAPaint 386 does work with a PS/2 mouse. VGAPaint 386 is broken on serial mouse a...

Hmm, where do I start here? Has anyone tried out VGAPaint 386 by Avery Lee? It's a 32-bit Deluxe Paint IV clone that supports graphics drivers up to 1600 x 1200 @ 8bpp: http://www.bttr-software.de/products/vp386/ I managed to install VGAPaint 386 on the second IDE hard drive on the AMI486. The progr...

Can we add support for SCSI hard disks that can have up to 255 heads instead of 16 heads and up the number of IDE/SCSI hard disks to eight due to a DOS/BIOS limitation? :p I've noticed that certain SCSI hard disks can have up to as much as 96 sectors per track, but it's obvious that DOS won't read ...

Can we add support for SCSI hard disks that can have up to 255 heads instead of 16 heads and up the number of IDE/SCSI hard disks to eight due to a DOS/BIOS limitation? :p I've noticed that certain SCSI hard disks can have up to as much as 96 sectors per track, but it's obvious that DOS won't read a...

Would it be possible to add support to emulate the Iomega Bermoulli Box (SCSI only) and support for tape drives (IDE and SCSI)? If you look on this page: https://en.wikipedia.org/wiki/Bernoulli_Box The Bermoulli Box was Iomega's first widely known product released in 1982...about 12 years before the...

szadycbr wrote:Hopefully there wont be more damage , than time Sarah must loose to delete 1500 or so posts for now, 1641 for now!! hrrr

I sure hope not! The spamming finally stopped at 4:41 AM this morning!

You right to post it here, cos no one will see it in other place, there is like 3 per minute, is this a person? did this? or some error/virus? I personally believe that it's one of the persons who is operating a bot account, spamming out of control like crazy. At this rate with Sarah Walker only ad...

I must apologise if this topic is in the Development forum but the General forum of PCem is getting hit pretty bad with a barrage of spam post at a rate of about two forum threads per minute with well over 1,500 forum threads of the same spam operated by a spambot since joining! :evil: Something nee...

Oh dear! This doesn't sound too good!

The MR 386DX clone is working okay. With the exception of the CPU changes, I can't seem to reproduce.

I'd go for both! The original amber monochrome and the other one where it used the curve to create a gas plasma monochrome effect!

Awesome work on getting the shaders to work on EGA/VGA emulated displays!

Speaking of the Commodore PC 30 III, when I select 1,024 KB RAM, the BIOS reports only 640 KB of memory usable. If I select 1,408 KB RAM, the BIOS will report 384 KB of extended memory usable. And at least 1,408 KB of RAM is needed to run Windows 3.0 in Standard Mode. If 1,024 KB RAM is selected, Wi...

I've hear that IBM PCs can go down to as little as just 16 KB! This is possible, however you can't use DOS with less than 64kb. As PCem doesn't emulate the cassette interface adding a 16kb option would be pretty useless. Thanks for telling me. Let's not forget about allowing the Compaq Deskpro 386 ...

I've hear that IBM PCs can go down to as little as just 16 KB! This is possible, however you can't use DOS with less than 64kb. As PCem doesn't emulate the cassette interface adding a 16kb option would be pretty useless. Thanks for telling me. Let's not forget about allowing the Compaq Deskpro 386 ...

Monochrome VGA is simply a grayscale version of a real VGA screen. Here's a example: http://www.computernerdkev.heliohost.org/skd-4000/img/Small/P1010035,s.jpg Monochrome EGA displays can have up to 16 grayscale shades (16 colours out of 64 palette colours). Monochrome VGA displays can have up to 6...

basic2004, have you though of applying the patch to add support for EGA and VGA monochrome displays yet? It would be awesome to add support! :D That's interesting but I don't know about monochrome EGA. I want to know EGA 16 colors on real monochrome monitor and 64 palettes on real monochrome monito...

Additional patch attached below applies - PS/1 2011, AMI 286 clone, Award 286 clone, DTK 386SX clone, Commodore PC30 III, Dell System 200 and AMI 386SX clone can have less than 1MB memory. - Changed IBM PC's memory granularity value to 32KB . This patch replaces previous patch. Awesome work so far!...

It's easy job. Please let me know what machines have less than 1MB memory when it ls released. OKay! :D Most 386SX and 386DX-based motherboards had as little as 512 KB of base RAM. I believe that the Commodore PC 30 III was released in 1988 and it was configured with either 512 KB or 640 KB of RAM:...

Yes. I've just added if AT machines granularity value less than 128, consider memory size is MB and greater or equal than 128, consider memory size is KB. And additional patch attached below applies PS/1 2011, AMI 286 clone, Award 286 clone and DTK 386SX clone can have less than 1MB memory. Awesome...