Search found 460 matches

by ppgrainbow
Tue 17 Sep, 2019 2:14 am
Forum: General
Topic: What computer processor to emulate pentium mmx and up with PCem well?
Replies: 8
Views: 409

Re: What computer processor to emulate pentium mmx and up with PCem well?

The current PC that I'm using is barely capable of emulating a Pentium MMX processor. I'm only lucky to emulate up to a 66MHz 486DX2 with the dynamic recompiler enabled or a 66 MHz Pentium.
by ppgrainbow
Sun 08 Sep, 2019 5:48 pm
Forum: General
Topic: [SOLVED] Navratil Software System Information locks up; errors on reboot
Replies: 1
Views: 997

Re: [SOLVED] Navratil Software System Information locks up; errors on reboot

Okay, problem has been solved I had to use the EMM386 driver to exclude regions C000 to DFFF where the ESDI hard disk controller is installed. Here's a screenshot: Screenshot from 2019-09-08 10-44-36.png As for the 305, 301 and 8602 errors, this needs to be investigated on what could be causing this...
by ppgrainbow
Tue 03 Sep, 2019 7:21 am
Forum: Patches
Topic: [Patch] Dell Dimension XPS 466V & Dell Dimension XPS 4100V
Replies: 7
Views: 1217

Re: [Patch] Dell Dimension XPS 466V & Dell Dimension XPS 4100V

Dell Dimension XPS 4100V & XPS 466V Minitower http://web.archive.org/web/19961222131403/http://www.dell.com/support/tech/DTA/XPS2T/default.htm Specifications: Dell Dimension XPS 4100V & XPS 466V http://web.archive.org/web/19970225131459/http://www.dell.com/support/tech/DTA/XPS2T/00000001.htm Thank ...
by ppgrainbow
Tue 03 Sep, 2019 1:33 am
Forum: Patches
Topic: [Patch] Dell Dimension XPS 466V & Dell Dimension XPS 4100V
Replies: 7
Views: 1217

Re: [Patch] Dell Dimension XPS 466V & Dell Dimension XPS 4100V

Do you have any idea what chipsets these machines use? http://vintagecomputer.net/dell/Dimension_XPS-466V/Dell_Dimension-XPS-466V_486-CPU.jpg Here it seems to be the chipset of the XPS 466V. It has to be one of the chipsets already emulated, as there is no new chipset in this patch Thank you for th...
by ppgrainbow
Mon 02 Sep, 2019 9:38 pm
Forum: Patches
Topic: [Patch] Dell Dimension XPS 466V & Dell Dimension XPS 4100V
Replies: 7
Views: 1217

Re: [Patch] Dell Dimension XPS 466V & Dell Dimension XPS 4100V

Do you have any idea what chipsets these machines use?
by ppgrainbow
Mon 02 Sep, 2019 9:33 pm
Forum: General
Topic: [SOLVED] Navratil Software System Information locks up; errors on reboot
Replies: 1
Views: 997

[SOLVED] Navratil Software System Information locks up; errors on reboot

I'm currently testing the utility called Naratil Software System Information on the emulated IBM PS/2 Model 80 and when this utility attempts to detect the two ESDI formatted hard drives, the emulated machine locks up hard. Here's the emulated screenshot of what the machine is trying to detect: Scre...
by ppgrainbow
Sat 31 Aug, 2019 3:48 am
Forum: General
Topic: IBM PS/1 2133
Replies: 2
Views: 570

Re: IBM PS/1 2133

This is because that machine is not supported under the current version of PCem for which it hasn't been updated since its v15 release on May 19, 2019.
by ppgrainbow
Sun 21 Jul, 2019 12:38 am
Forum: General
Topic: MS-DOS Starter Pack
Replies: 8
Views: 1507

Re: MS-DOS Starter Pack

Thanks! I can' install DOS and the drivers easily without the use of a starter pack. :)
by ppgrainbow
Sun 21 Jul, 2019 12:27 am
Forum: General
Topic: MS-DOS Starter Pack
Replies: 8
Views: 1507

Re: MS-DOS Starter Pack

Oh, okay. Thank you for the clarification and I'm sorry for misunderstanding. I didn't know that your pack only included drivers.
by ppgrainbow
Sun 21 Jul, 2019 12:17 am
Forum: General
Topic: MS-DOS Starter Pack
Replies: 8
Views: 1507

Re: MS-DOS Starter Pack

(comment edited)

Thank you for the clarification.
by ppgrainbow
Tue 02 Jul, 2019 3:00 am
Forum: Development
Topic: Weird ram problem
Replies: 7
Views: 2488

Re: Weird ram problem

It was not until at least 1999 or 2000 when Pentium III came out and 32 MB to 128 MB of RAM became more common and by 2003, 256 MB to 512 MB became more comment also. If you're using the DataExpert OPTi-495SX-based AMI 386 or a ALi-1492-based AMI 486, anything more than 64 MB will not be detected by...
by ppgrainbow
Fri 21 Jun, 2019 4:09 pm
Forum: General
Topic: Is it possible to boot a guest from usb?
Replies: 10
Views: 2267

Re: Is it possible to boot a guest from usb?

abk4523 wrote:
Fri 21 Jun, 2019 4:02 pm
I know. It worked pretty well for a while but the laptop eventually started locking up after logging in.
It would only work if the processor was at least a Pentium Overdrive. :p
by ppgrainbow
Fri 21 Jun, 2019 3:46 pm
Forum: Development
Topic: Weird ram problem
Replies: 7
Views: 2488

Re: Weird ram problem

orarsis81, On a 386 which PCem emulates, the motherboard which uses the OPTi-495SX chipset, the RAM is actually limited to 32 MB , not 256 MB. The AMI BIOS (dated June 6, 1992) will NOT even recognise more than 64 MB and will not even POST if the RAM is manually set to anything higher than 655,296 ...
by ppgrainbow
Fri 21 Jun, 2019 1:55 pm
Forum: Development
Topic: Weird ram problem
Replies: 7
Views: 2488

Re: Weird ram problem

orarsis81, On a 386 which PCem emulates, the motherboard which uses the OPTi-495SX chipset, the RAM is actually limited to 32 MB , not 256 MB. The AMI BIOS (dated June 6, 1992) will NOT even recognise more than 64 MB and will not even POST if the RAM is manually set to anything higher than 655,296 KB.
by ppgrainbow
Fri 21 Jun, 2019 1:49 pm
Forum: General
Topic: Is it possible to boot a guest from usb?
Replies: 10
Views: 2267

Re: Is it possible to boot a guest from usb?

abk4523 wrote:
Fri 21 Jun, 2019 11:48 am
I may have misremembered something. I installed Windows Xp on a 486dx2 laptop from cd, but I don't remember if I used a Windows 98 boot disk.
Windows XP is not compatible with processors older than a Pentium processor, because it hard requires CMPXCHG8B and CPUID instructions.
by ppgrainbow
Thu 20 Jun, 2019 9:09 pm
Forum: General
Topic: Is it possible to boot a guest from usb?
Replies: 10
Views: 2267

Re: Is it possible to boot a guest from usb?

PCem has no support for USB devices at this time. You can only boot from ATAPI or SCSI CD-ROM or Iomega ZIP drives.

If you want to boot a guest OS from USB, you can place the hard disk image, CD-ROM ISO or Iomega ZIP onto a USB device and boot it from there.
by ppgrainbow
Wed 19 Jun, 2019 6:27 pm
Forum: General
Topic: Possiblity of implementing cache emulation
Replies: 14
Views: 2569

Re: Possiblity of implementing cache emulation

ppgrainbow, it might be not feasible to put it to PCem, but its not a joke, there always was hudge performance impact where ex. celeron 300 and 300a with difference in L1cache speed. pentium 1 and MMX also did vary with L1 cache and speed difference was also not small at all. Sorry for getting rile...
by ppgrainbow
Wed 19 Jun, 2019 6:17 pm
Forum: General
Topic: Possiblity of implementing cache emulation
Replies: 14
Views: 2569

Re: Possiblity of implementing cache emulation

grommit2007 wrote:
Wed 19 Jun, 2019 3:43 pm
Would it ever be possible to implement this in the future, when the CPU host resources aren't much of a problem, and with an option to select the old (current) behavior?
Not in the next release or in the foreseeable future. You can just forget about the CPU cache. It's a joke.
by ppgrainbow
Tue 18 Jun, 2019 5:22 pm
Forum: General
Topic: Possiblity of implementing cache emulation
Replies: 14
Views: 2569

Re: Possiblity of implementing cache emulation

grommit2007 wrote:
Tue 18 Jun, 2019 5:01 pm
How come?
CPU cache emulation was guesswork in early versions of PCem and since the cache emulation proved to be no improvement to CPU emulation, it was removed.
by ppgrainbow
Tue 18 Jun, 2019 4:58 pm
Forum: General
Topic: Possiblity of implementing cache emulation
Replies: 14
Views: 2569

Re: Possiblity of implementing cache emulation

That's no longer possible.
by ppgrainbow
Sat 15 Jun, 2019 1:29 am
Forum: General
Topic: Linux Users: Any good roms out there?
Replies: 6
Views: 1942

Re: Linux Users: Any good roms out there?

Please avoid trying to ask for ROMs on this site. Like leilei said, check your sound buffer length and CPU execution percentage as it will start dropping below 100%. On faster emulated processors, the CPU execution percentage will drop requiring a faster PC. On a AMD FX-4300 for example, I will be l...
by ppgrainbow
Mon 10 Jun, 2019 1:51 am
Forum: General
Topic: Die Hard Trilogy won't start up (DLL error)
Replies: 8
Views: 2149

Re: Die Hard Trilogy won't start up (DLL error)

SuperWill99 wrote:
Mon 10 Jun, 2019 1:21 am
I think I finally managed to figure out how to solve the problem: the DLL file got messed up when I installed a seemingly faulty 3D program. Now it works!
Good to hear that you got it working again. :)
by ppgrainbow
Sun 09 Jun, 2019 7:08 pm
Forum: General
Topic: Die Hard Trilogy won't start up (DLL error)
Replies: 8
Views: 2149

Re: Die Hard Trilogy won't start up (DLL error)

SuperWill99 wrote:
Sun 09 Jun, 2019 7:05 pm
Here is the config file for my primary machine:
Thank you so much! :)
by ppgrainbow
Sun 09 Jun, 2019 7:00 pm
Forum: General
Topic: Die Hard Trilogy won't start up (DLL error)
Replies: 8
Views: 2149

Re: Die Hard Trilogy won't start up (DLL error)

Can you post the system configuration file on what machine that was used to try to run one of the games in Windows 98 Second Edition? Die Hard Trilogy was released on August 31, 1996. If your configuration meets or exceeds the system requirements, then PCem v15 has some bugs that need to be worked o...
by ppgrainbow
Sun 26 May, 2019 12:11 am
Forum: General
Topic: Is there a limit to the number of roms useable?
Replies: 1
Views: 1290

Re: Is there a limit to the number of roms useable?

It's okay. Thank you for the co-operation. :)
by ppgrainbow
Fri 17 May, 2019 9:00 pm
Forum: Development
Topic: [BUG] OS2 SCSI boot failures
Replies: 4
Views: 2713

Re: [BUG] OS2 SCSI boot failures

OS/2 2.11 works with "DISKCACHE=1024,LW,AC:C" in CONFIG.SYS when using the Adaptec AHA-1542C (I haven't tested it with IDE.) Using "D" in place of 1024 simply results in a warning at startup that the DISKCACHE line is invalid. I actually have the DISKCACHE parameter disabled as enabling it may only...
by ppgrainbow
Thu 16 May, 2019 7:17 am
Forum: Development
Topic: [BUG] OS2 SCSI boot failures
Replies: 4
Views: 2713

Re: [BUG] OS2 SCSI boot failures

Have you had any luck getting OS/2 2.1 to work with the "DISKCACHE=D,LW,AC:C" enabled in the CONFIG.SYS file? I tried that and for some obvious reason, OS/2 2.1 doesn't seem to start up correctly. The OS ends up booting to a pale light gray desktop (or cyan coloured desktop if on OS/2 2.11) with no ...
by ppgrainbow
Sun 14 Apr, 2019 2:28 am
Forum: Development
Topic: AMI386 and OPTi-495SX chipset
Replies: 0
Views: 1933

AMI386 and OPTi-495SX chipset

Hey there! I just found out information regarding which motherboard the "AMI386 clone". The machine uses the DataExpert OPTI-495SX (471WB) motherboard. Looking at the datasheet for the DataExpert OPTI-495SX located here: https://stason.org/TULARC/pc/motherboards/D/DATAEXPERT-CORPORATION-486-OPTI-495...
by ppgrainbow
Fri 12 Apr, 2019 10:16 am
Forum: General
Topic: Black Dahlia says not enough free space
Replies: 14
Views: 4181

Re: Black Dahlia says not enough free space

SarahWalker wrote:
Fri 12 Apr, 2019 9:10 am
You realise this is a two year old thread you're bumping here, right?
Yep. If I bumped this thread, I must apologise for what happened here. :)
by ppgrainbow
Thu 11 Apr, 2019 10:29 pm
Forum: General
Topic: Black Dahlia says not enough free space
Replies: 14
Views: 4181

Re: Black Dahlia says not enough free space

Cheez wrote:
Thu 11 Apr, 2019 10:11 pm
It sounds like the installer itself is checking for free space and it probably fails over 4GB
That doesn't sound too good. If the hard disk is 4GB or smaller, it will somehow install, correct?