Re: PCEm. Another PC emulator.
Posted on 2014-04-04, 20:30
BUG: After opcode 0x3A 0xD8, the instruction pointer is incorrectly increased by only 1 byte, therefore ending up at the 0xD8, rather than correctly by 2 bytes.
Re: PCEm. Another PC emulator.
Posted on 2014-03-29, 22:11
Here is a link to my PCem patchset (basically adds Phoenix S3 Trio64 and Phoenix S3 Trio32, makes it so the correct VRAM information is always returned from CRTC 0x36, and rewrites keyboard handling using raw input): http://citadel.ringoflightning.net/92.patch .
Re: PCEm. Another PC emulator.
Posted on 2014-03-27, 13:36
Windows 3.x also hangs if LMOUSE (the Logitech mouse driver) is loaded.
Re: PCEm. Another PC emulator.
Posted on 2014-03-27, 00:07
Submitted my patchset to you. Includes both the S3 changes (forking of Trio64 into three by adding the Phoenix ones, which mainly differ in the VRAM amount, and in case of the Trio32, in how it identifies as), and the keyboard changes. Also, the 32-bit modes now work fine, though in 1024x768x32-bit …
Re: PCEm. Another PC emulator.
Posted on 2014-03-26, 21:59
- SarahWalker: What is that, and how do I use it? Edit: Found what Bitbucket is, but it seems I should have thought of it earlier. I got my copy of the PCem source from here: http://www.retroroms.net/modules/newbb/viewtopic.php?topic_id=7657&forum=3 , and not from the repository. I'll see if I can …
Re: PCEm. Another PC emulator.
Posted on 2014-03-26, 19:49
By the way, this is the changes I did to the keyboard handling: In WIN.C: I added this: #define _WIN32_WINNT 0x0501 In the very beginning. Near the beginning, I also added this: RAWINPUTDEVICE device; I added these two procedures before WinMain: UINT16 convert_scan_code(UINT16 scan_code) { switch( …
Re: PCEm. Another PC emulator.
Posted on 2014-03-26, 19:23
- SarahWalker: About the top quarter issue, what's running it Little Big Adventure 2, a game from 1997 for DOS and Windows 95, this is specifically the DOS version running that uses DOS4GW. The OS is MS-DOS 6.00. System Configuration: Award VX430 with WinChip 240. S3 Trio64 card (but the problem …
Re: PCEm. Another PC emulator.
Posted on 2014-03-26, 13:14
This is it: http://goput.it/v/hmmf.png . Colors are completely screwed up, and fonts aren't rendering correctly. Also, found another bug, on all video adapters - in some 256-color modes, only the top quarter of the screen is rendered. This is an example: http://goput.it/v/6782.png .
Re: PCEm. Another PC emulator.
Posted on 2014-03-25, 23:08
Whew, did more work on the keyboard handling. Made all known escaped keys (those beginning with E0) sent, and even devised a way to disambiguate eg. E0 71 from F1 and E0 F1, and so on. Also noticed it was incorrectly passing E0 8A as the break code of E0 2A (fake shift issued by some keys) instead …
Re: PCEm. Another PC emulator.
Posted on 2014-03-25, 18:41
Forked out the S3 Trio64 a bit, now there's 3 of them: - 9FX Vision Trio64: 9FX BIOS, 1 MB VRAM, identifies as Trio64; - Phoenix S3 Trio64: Phoenix Trio64 BIOS, 4 MB VRAM, identifies as Trio64; - Phoenix S3 Trio32: Phoenix Trio32 BIOS, 2 MB VRAM, identifies as Trio32. Now to get back to fixing the …
Re: PCEm. Another PC emulator.
Posted on 2014-03-24, 22:42
Keyboard handling rewrite is done, it even respects the mapping at "ScanCode" at HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout now, and I also made it pass on scan codes 0xF1 (make, no break) and 0xF2 (make, no break) correctly (these are the Hancha and HanYong keys found on …
Re: PCEm. Another PC emulator.
Posted on 2014-03-24, 18:49
PcEm is compiled to use ASCII layout. You may try to either compile it with UNICODE define, or switch to DIrectInput8 and pass IID_IDirectInput8W as parameter in DIrectInput8Create function. http://msdn.microsoft.com/en-us/library/windows/desktop/microsoft.directx_sdk.reference.directinput8create …
Re: PCEm. Another PC emulator.
Posted on 2014-03-24, 18:45
Well, I'd say Microsoft's own DOS/V drivers are the standard in this case. The only problem is, we obviously doesn't have the source code of Microsoft's JDISP.SYS. If we did, everything would be much simpler, since we'd just need to look there to see what it does.
Re: PCEm. Another PC emulator.
Posted on 2014-03-24, 12:14
Yeah, the floppy-less solution exists too for DOSBox, but it uses some third-party DBCS display driver that isn't well-compatible with things like Windows 3.1 Japanese. And Microsoft's DBCS display driver doesn't work on DOSBox because it needs COUNTRY support which DOSBox still doesn't offer. Also, …
Re: PCEm. Another PC emulator.
Posted on 2014-03-23, 23:10
Well in DOSBox it works by booting from the floppy image. It has no problem with the video mode DOS/V uses. But well, what I would like is to dump registers and opcodes in PCem, so I can know exactly what opcode etc. it freezes at. That way I then know exactly where to start looking for the bug.
Re: PCEm. Another PC emulator.
Posted on 2014-03-23, 21:45
Battler, I'm glad that you will be working alongside pcem to fix a bug. You may post some findings and perhaps others will be able to help you through the bug fix. A start would be to find examples of source code and how the DOS/V system works. Can you install DOS/V on vmware or vbox? Sarah has …
Re: PCEm. Another PC emulator.
Posted on 2014-03-23, 21:06
First, stop being so rude. I didn't come here and yell "DO IT NOW", I simply came here and suggested what should be fixed. I could also fix the bugs myself and then submit you the fixes, that way you don't even have to lose time on it. But you didn't even try suggesting that possibility, instead …
Re: PCEm. Another PC emulator.
Posted on 2014-03-23, 21:04
Cube 2 demo, hires 8bb, shows black screen, but music is playing. Maybe its similar problem as with DOS/V hires mode. Attached. Could you please test Wolfenstein 3D? I recall that on Qemu, both it and DOS/V black-screened the same way. And if Wolfenstein 3D black screens in PCem too, then it could …
Re: PCEm. Another PC emulator.
Posted on 2014-03-23, 20:47
Fixing DOS/V would also mean 'expecting' implementation of common hardware that actually used it, like the stuff in NEC PC-88/PC-98. There are already specialized emulators for that purpose, Neko Project II is excellent for it, and SarahWalker doesn't owe emulation of a platform she is not …
Re: PCEm. Another PC emulator.
Posted on 2014-03-23, 18:11
Where did you get the idea that I care anything about markets? I work on this emulator in my spare time, to implement what I want to work on, purely for my own satisfaction. If other people are interested in it, then great. But I don't have to take any shit from someone like you, going on about ' …
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