v15 compatibility & bug list (WIP)

[ChronicEel93]

This is a bit late, but I've had a long standing issue I've never actually bothered to report

Anyways, using the ATI Graphics Pro Turbo card, I get pretty colors and screen corruption from certain actions., notably, any time an image is transformed, or whenever a window is closed (when in win3.1 and up)... screenshots to illustrate.
Uhh, searched the forums a little bit, and no luck so...

This happens on distributed and compiled versions of pcemv15 on linux and windows.

This has only been happening in high color modes.

Sometimes it doesn't happen at all.

[ChronicEel93]

It seems I was mistaken when I asserted that the graphical issues persisted across both windows and linux. There are a few smaller oddities that are shared, such as discoloration of images in all versions of internet explorer on windows 98 when using the generic S3 VIRGE DX driver, but the major issues that are present in my screenshots seem present only on a linux build of pcem (under arch, x64) while using the mentioned ATI card. Sorry, I was rather tired when I wrote the preceding post.

[tk421]

Has anyone had any issues with the joystick in v15? I can use my joystick with v13.1 without much fuss, but in v15 the program recognized my joystick, but Win98 does not, yet it states that I have the maximum number of joysticks installed when I try to add my Thrustmaster joystick, which is actually compatible itself with WIn98.

v15 of PCem seems to run faster than v13.1 or v14. My DOS programs are running very well, and Jedi Knight seems to run very well using the higher end Pentium MMX CPUs. I thought that if I could get the joystick working in v15 then TIE Fighter might run faster than it did with v13.1 I can confirm that the best video card for TIE Fighter 95 is the S3 Virge/DX with the Voodoo disabled completely. This is a case where not activating the Voodoo is the key to running TIE FIghter with 3D accelerated graphics.

[Agorima]

Hello all,

I do not know if this is properly a bug or not, because "Commander Keen episode IV" with VGA graphics it is working perfectly fine.
However, when the graphic card Trident TGUI9440 is selected, the screen flickers, as you can see from the screenshot

CPU: i386 25 Mhz
RAM: 8 MB
HDD: 349 MB
OS: MS-DOS 6.22 / Windows for Workgroups 3.11

[leilei]

Are you sure you're looking at a bug? Keen4 (and derivative engine games) have a SVGA compatibility switch for issues like that in mind. Turning that on will make that corruption go away.

[Mroowski]

Hi everyone, I'm new here!

I've noticed some weirdness while trying to run The Elders Scrolls Adventures: Redguard.

Game performs differently depending on the Voodoo2 drivers being used.
Game runs, albeit really slowly, using official 3dfx drivers dated 7-14-1998 provided with the game. The fps hangs around 8-12 fps, which is about a half of what you would get using the real hardware. This is not really a suprise, since this game is a buggy mess and even the GOG rerelease doesn't work perfectly. However - apart from the framerate- I've noticed no additional bugs, no polys or textures missing or anything of the sort.

When I upgraded my driver to the newer version , dated 27-01-2000, the game *seems* to run a bit smoother. However, I wasn't able to catch the exact framerate, because PCem crashes after only a brief moment, leaving me with the following error message:

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CMDFIFO packet 5 has byte disables set 3992c5dd

Using third party FastVoodoo2 4.0 Gold Edition drivers, emulator also crashes after couple of seconds and leaves a different message in the pcem.txt file:

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triangle_setup wrong order 1360 444 3058

From the games I've tested (Unreal Gold, FFVIII Demo, Croc), Redguard is the only one that produces such behaviour. Here's my question: are there some specific, preferable Voodoo2 drivers that are more suited for PCem?

[MiraiMiracle]

Another short list

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FIC VA-503+, AMD K6-2/233, ViRGE/DX 4mb, Voodoo2 (single), AWE32, Win98SE

Broken:
	Battlezone (1998, v1.0) ("Unhandled exception" crash in guest - desktop gets stuck at 640x480x256. Occurs with all renderers and also the Pentium. Doesn't happen on winchip2a interpreter)

Can you please post a screenshot of a program crash?

[leilei]

Can you please post a screenshot of a program crash?

Deemanding a screenshot of an old reported bug that got fixed over a year ago......now?

[MiraiMiracle]

I really don't know if I could reproduce this. It might be exception on the guest or emulated machine. Prehaps did you got that "unhandled exception" error?

[MiraiMiracle]

Okay, I got some games work on Windows 98 Second Edition on PCem.

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Operating system: Windows 98 Second Edition
Emulated machine: [Socket 7] ASUS P/I-P55TVP4
CPU processor: Intel Mobile Pentium MMX 166
Graphics card device: ATI MachGX 64 + Voodoo Graphics (with DirectX 8.0)
Sound device: Windows Sound System

Worked but slow speed on the emulated machine:
Balance of Power: The 1990 Edition
Blast Thru
DX Ball (version 1.09)
Mario Teaches Typing 1
The Incredible Machine

Bugs:
Air Offensive: The Art of Flying - Speed issues and bad textures

Broken/not working:
The Best of Microsoft Entertainment Pack (1995 version) - Attempts to start its installation failed (cannot read from drive A:) and the emulated machine partially hangs.

Windows 98 Second Edition cannot read from The Best of Microsoft Entertainment Pack floppy when starting a installation. There was a problem with this floppy drives on PCem, and will be fixed in version 16.

Screenshot from 2020-02-22 01-30-07.png (127.27 KiB) Viewed 13047 times

[terub56]

Yes, floppy drives doesn't seem to work on Windows 98 but thhey work with DOS

[CryptidWorks]

Jazz the Jackrabbit 2 inexplictly has emulation slowdown during the into movies that's totally unrelated to host hardware usage. My CPU might as well be idling but emulation speed is still 90-95% while they're playing. Game itself is fine. I'm using the Shareware demo on Windows 98SE just in case that's relevant

https://www.youtube.com/watch?v=bn57e22juoM

Video might take a few to process full quality on YT

[CryptidWorks]

Upon opening the PlaySchool Sampler on a Playschool game (Mr Potato Head Saves Veggie Valley) I encountered more slow-down with no apparent cause. Seems like it might be related to playing Quicktime content in Windows 98SE.

Much like the Jazz the Jackrabbit example the game itself is just fine.