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This topic is for everything WIP related to our beloved PC world. Bug entry on Wiki will come up in these days ...

Preliminary fix for double scan condition in EGA mode, fixes Williams Arcade Classics in-game gfxs:

Except now I am seeing double in Commander Keen 4 and Duke Nukem II:





These were working before.

Pushing the new driver to the limit almost.

Indycar Racing



Rise Of The Triad PC Demo



DOOM SE



Heretic PC Demo





Hexen PC Demo





Duke Nukem 3D (Slight texture issues with rooftops, ledges and some flooring).

Shadow Warrior





Blood (Including intro + slight texture issues)







Pinball Illusions (Works with some slight graphical issues) Sound is PC speaker and set to maximum quality, sounds perfect, no high piercing noises as with Pinball Dreams.



Text looks normal here, but in game it appears to be overlapping itself a number of times and is constantly flickering. Ingame menu also suffers from the same problem.



Some slight issues with the score display at the bottom. The flippers also suffer from some weird lines that appear on them when they move.

Quarantine (runs perfectly)





DOOM 2





Pinball Dreams 2







Other Issues:

Blake Stone: 2D works, 3D is one big coloured mess.

SimCity 2000: Needs properly VESA resolution support. The resolution is all stretched and disorted at the top of the screen. Tried Trident VGA, but no ingame graphics, just letters and numbers instead. Tried various VESA and VGA cards in the list, no luck though.

FIFA International Scocer: Still get a memory error. Abnormal Program Termination: Memory Protection Fault. CS: EIP = 000FH:0009C4E7h

FIFA 97: Works, but needs VESA resolution support so the image is well and truely not displayed correctly (just a bit at the top all stretched out). The intro, menu, loading screen and gameplay all loop over and over within 10 seconds or so.

Wacky Wheels: Works, but asks to press FIRE to start the game. By default FIRE is mapped to the SPACE BAR but nothing happens when I press it, in fact no key on my keyboard responded.

Grand Theft Auto: VESA. Receive a GTA8.EXE or GTA24.EXE is not a WATCOM program error.

CD2 Demo (Demoscene Demo from Triton). No keyboard input at the sound select screen.

Robotnik - Punish Your Machine Demo (Demoscene Demo from Rage): Crashes back to Windows after selecting a sound device, ie: none or one of the other sound options.

Need For Speed 1 Demo: Needs proper VESA resolution support. Complained about a joystick even though I disabled in the MESS ini. Pressing any key casues the driver to crash back to the desktop.

Quake: (AT486) - After typing quake at the command prompt, the cursor goes down one line and just blinks. If I hit F10 to speed things up, the machine is running at like 500%. The demoscene demo MEGAMIX from RealTech also does this. (AT586) - General Protection Fault at eip=3cf55078; flags 3096 and a bunch of other error codes after it.

Nascar Racing Demo: Can't go ingame, can use arrow keys up and down in the menu, but when I press ENTER, the text goes white and goes no further. Pressing ESC brings the text out of white to yellow (default colour).

Ignition: Pressing my luck with this one. Get a black screen only.

Screamer, Fatal Racing (Whiplash) and Future Crew's Second Reality demo all crash back to the desktop.

Indycar (in-game)

But keyboard don't function when choosing in the menu

Red Baron:

Was that the free version of Grand Theft Auto (GTA1) from Rockstar's website, or the original DOS/Win95 version? I'm assuming the free version, since the original game was CD only.

Not the free version, it was the CD-ROM version that I had installed in to DOSBOX. I managed to find a no cd patch for it and it works in DOSBOX, but no luck in MESS yet.

Forgive my ignorance but how are you copying these games to the .CHD image?

I only understand how to create and use .IMA images for the floppy drive and then install to the .CHD hard drive from there.

Is there a .CHD explorer or CD drive device that I'm not aware of?

The way I do it is like this (I'm using my at486.chd file as the example in here, which is 500MB in size):

Extract the *.chd file to a *.raw file using chdman.

chdman -extract at486.chd at486.raw (or whatever your filename is called)

Once you have the *.raw file, open it up in winimage (www.winimage.com). You'll get popup box with a drop down appear. Because I now have a 500MB *.raw file, I get a message that says: "Partition on disk 0, size:511024 MB, FAT". When you see this, just hit OK.

You'll see the entire drive in a windows explorer type of a view, (use the options menu to change the view is you wish). Here you can drag and drop files and folders in to the big white window. You can also delete and extract files and folders, but you can't open and edit a file.

Everytime you inject a file or a folder full of files in to the image file within winimage, it's automatically saved. So once you've copied enough games or whatever it is what you want in there, you can just close winimage, you don't need to save anything and it won't prompt you either. There is a save button at the top that you can use if you want though.

To convert the *.raw file back to a *.chd file, you'll first need to either backup or delete your old *.chd file. Once you've done that, type the following:

chdman -createuncomphd at486.raw at486.chd (or whatever your file name is called)

Load your *.chd file in MESS and you should be good to go!

I ended up creating batch files to extract and convert the raw and chd files, it was becoming a real pain in the ass having to type it all everytime. I just double click on the batch files now, so much easier.

There is a program that comes with MESS and MAME called "wimgtool". You can try using that, but when I try to load the *.chd file, it says it's corrupted.