Search found 51 matches

by TheMechanist
Sun 09 Dec, 2018 5:58 pm
Forum: Development
Topic: Would like to add my own ROMs to PCem for personal use.
Replies: 6
Views: 4307

Re: Would like to add my own ROMs to PCem for personal use.

sorry for hijacking this thread .. I found a lot of ROMs for vintage computers .. is it possible to add them by my own or are the emulated machines hard wired in PCem?
by TheMechanist
Sun 09 Dec, 2018 5:53 pm
Forum: General
Topic: Minor Num Lock issue with AMI XT clone
Replies: 2
Views: 1638

Re: Minor Num Lock issue with AMI XT clone

sorry, can't help you, but maybe you can help me :) .. you're using AMI XT clone, how did you get it running, I don't have this option!? (PCem v13)
by TheMechanist
Thu 06 Dec, 2018 7:08 pm
Forum: General
Topic: Schneider Euro PC
Replies: 8
Views: 4880

Re: Schneider Euro PC

Because I didn't know it had one? oh, okay .. don't know much about the special hardware of vintage computers .. it's not nvr, but I guess the 8088 machines saved the bios settings somewhere somehow .. found a book (Early Home Computers) which tells about "eeprom with similar functions like cmos nv...
by TheMechanist
Thu 06 Dec, 2018 4:12 pm
Forum: General
Topic: Schneider Euro PC
Replies: 8
Views: 4880

Re: Schneider Euro PC

I've never found Topbench very reliable for any comparisons or benchmarking. My real computers, both fast and slow, would make matches with different generations entirely I know that benchmarking is a very controversial topic, but other benchmarks seem to point in the same direction .. at least if ...
by TheMechanist
Thu 06 Dec, 2018 8:40 am
Forum: General
Topic: Schneider Euro PC
Replies: 8
Views: 4880

Re: Schneider Euro PC

btw. in terms of accuracy .. comparing topbench results with pcem (v13) shows that the emulated machines are about 25% faster than the benched real machines, mainly because of faster memory access, cpu speed seems to be nearly exact ..
by TheMechanist
Wed 05 Dec, 2018 5:05 am
Forum: General
Topic: Schneider Euro PC
Replies: 8
Views: 4880

Re: Schneider Euro PC

... there are no save files for the machine hm ..
by TheMechanist
Tue 04 Dec, 2018 3:37 pm
Forum: General
Topic: Schneider Euro PC
Replies: 8
Views: 4880

Schneider Euro PC

Hi folks,

I can't save BIOS settings, the machine always starts with "cleared" BIOS settings, especially with 640 kb memory, no disc drive and at 4.77 MHz clock speed.

Do you have any suggestions? I didn't discover that with other machines. Where does PCem (linux) save the BIOS settings?

Greetz
by TheMechanist
Tue 22 May, 2018 12:23 pm
Forum: General
Topic: Using special machine types
Replies: 5
Views: 2668

Re: Using special machine types

I see the point, but in most cases standard software won't see any difference?! .. how will the special machine types perform compared to the real machines? Can I expect that for example the Commodore PC30-III emulation will (nearly) have the same performance like the original machine?
by TheMechanist
Sat 19 May, 2018 9:47 pm
Forum: General
Topic: Using special machine types
Replies: 5
Views: 2668

Using special machine types

There are a lot of special machines emulated. But what is the advantage/disadvantage of using for example an AMI 286 clone vs. Epson PC AX or Dell System 200 ? Are the special systems more accurate emulated ? And if it matters, which one of the 286s models would you recommend ?
by TheMechanist
Mon 16 Apr, 2018 10:16 am
Forum: General
Topic: [BUG?] VGA - color brightness
Replies: 5
Views: 2093

Re: [BUG?] VGA - color brightness

hm .. interesting, seems that the green channel has technically a higher brightness level

http://www.vogons.org/viewtopic.php?p=351518#p351518

obviously with vgaonly dosbox tries to be as compatible as possible, so PCem does it correctly ..
by TheMechanist
Mon 16 Apr, 2018 4:37 am
Forum: General
Topic: [BUG?] VGA - color brightness
Replies: 5
Views: 2093

Re: [BUG?] VGA - color brightness

What are you running in these screenshots? My own project .. using nothing special, just changing colors in mode 13h the usal way with palette registers .. added the RGB value in the left screen to show the difference, its the color of the field where this color is used. @leilei: its set to svga_et...
by TheMechanist
Sat 14 Apr, 2018 8:27 am
Forum: General
Topic: [BUG?] VGA - color brightness
Replies: 5
Views: 2093

[BUG?] VGA - color brightness

Hi,

seems, that DOSBox and PCem (linux) render the colors differently .. colors look too bright in PCem for the 18bit RGB values ?! It doesn't matter, if software or openGL rendering ..

Image

Greetz

TheMechanist
by TheMechanist
Wed 31 Jan, 2018 2:42 pm
Forum: General
Topic: CRT Controller Emulation
Replies: 10
Views: 3511

Re: CRT Controller Emulation

Register 8 isn't currently emulated I'm afraid. I can add it, but probably not until the weekend. Seems, that PCem 13.1 doesn't emulate it .. would be nice for future releases to get a fully emulated crt controller, I guess some games use smooth vertical scrolling and other hacks too .. Btw. PCem 1...
by TheMechanist
Fri 19 Jan, 2018 5:47 am
Forum: General
Topic: [Linux] [PCem v13.1] Compile errors
Replies: 9
Views: 3275

Re: [Linux] [PCem v13.1] Compile errors

Solved it, libwxbase is not enough, had to install libwxgtk too, now it compiled like charm ! But ./configure --release-build didn't complain about missing libwxgtk, so I had no hint first ...
by TheMechanist
Wed 17 Jan, 2018 7:55 pm
Forum: General
Topic: [Linux] [PCem v13.1] Compile errors
Replies: 9
Views: 3275

[Linux] [PCem v13.1] Compile errors

Hi folks, just tried to compile PCem v13.1, getting a lot of errors regarding wxWidgets: Example wx-app.h:57:29: error: invalid use of incomplete type ‘class wxCommandEvent’ class CallbackEvent: public wxCommandEvent ^ In file included from /usr/include/wx-3.0/wx/wx.h:24:0, from wx-app.h:6, from wx-...
by TheMechanist
Mon 31 Jul, 2017 9:02 pm
Forum: General
Topic: CMOS memory size mismatch
Replies: 2
Views: 1494

Re: CMOS memory size mismatch

okay, good to know .. I tried to set extended ram to 0 and base ram to 512 / 640 kB, but bios complains .. the only working setup - didnt test more than 1 MB - is setting ram to 512k in both pcem config & bios base memory so far, of course only suitable if 512k are enough for you ..
by TheMechanist
Mon 31 Jul, 2017 8:54 pm
Forum: General
Topic: Gfx tearing
Replies: 1
Views: 930

Re: Gfx tearing

.. after playing around it doesn't seem to be a PCem issue but a more or less common linux issue .. I deactivated xfwm composition manager, installed compton composition manager, activated glx backend with opengl-oml vsync and now tearing is almost gone, now there is a visible difference when pcem's...
by TheMechanist
Mon 31 Jul, 2017 5:59 pm
Forum: General
Topic: Best way capture pcem video & audio
Replies: 16
Views: 4204

Re: Best way capture pcem video & audio

with the excellent new wx/sdl gui screen recording is now very simple and accurate under linux, since the window size and position can be fixed, even on low end machines .. I used kazam which is very straight forward and doesn't require much ressources, it's even available from the offical ubuntu re...
by TheMechanist
Mon 31 Jul, 2017 1:56 pm
Forum: General
Topic: Gfx tearing
Replies: 1
Views: 930

Gfx tearing

I'm using a internal VSync-wait for my prods to avoid tearing when updating the gfx memory and it's working in DOSBox & real hardware .. when running PCem I see more or less heavy tearing between the frames (emulating i286/16 on i3 / i5, runs at full speed) .. even with the latest mainline. It doesn...
by TheMechanist
Mon 31 Jul, 2017 9:43 am
Forum: General
Topic: CMOS memory size mismatch
Replies: 2
Views: 1494

CMOS memory size mismatch

... I've set up an Ami286 clone with 1 MB RAM .. I have no idea what to set in BIOS to get rid of this error when booting, I tried some settings without success .. BIOS tells, there are only 512kb base ram ...
by TheMechanist
Mon 31 Jul, 2017 9:34 am
Forum: Development
Topic: [Linux] GUI discussion
Replies: 218
Views: 58573

Re: [Linux] GUI discussion

one suggestion - would be nice to have some fixed screen resolutions for window .. you could either stay with fixed & scale, but in that case the window is resized everytime the resolution of the machine changes, or it stays the same window size when set to resizeable, but it's only freehand .. so g...
by TheMechanist
Mon 31 Jul, 2017 9:29 am
Forum: Development
Topic: Linux; Mainline - Build failed ..
Replies: 2
Views: 1106

Re: Linux; Mainline - Build failed ..

.. runs very fine ! Excellent gui, I'm very impressed !

Just had to figure out, that pcem now - the right linux way ! - searches for ROMS in .pcem ..
by TheMechanist
Mon 31 Jul, 2017 9:27 am
Forum: Development
Topic: [Linux] GUI discussion
Replies: 218
Views: 58573

Re: [Linux] GUI discussion

Just installed latest mainline ...

simply two words: fucking excellent ! Great job !!!!
by TheMechanist
Mon 31 Jul, 2017 8:58 am
Forum: Development
Topic: Linux; Mainline - Build failed ..
Replies: 2
Views: 1106

Re: Linux; Mainline - Build failed ..

oops .. after I deleted all files and started a new fresh build process (it was interrupted multiple times 'cause some dependencies were not met) it didn't fail !
by TheMechanist
Mon 31 Jul, 2017 8:50 am
Forum: Development
Topic: Linux; Mainline - Build failed ..
Replies: 2
Views: 1106

Linux; Mainline - Build failed ..

downloaded the latest repository, tried to build for Ubuntu 16.04 with wx/sdl Build failed with a lot of errors, for example: pcem-wx-shaderconfig.o:(.rodata._ZTV10wxScrolledI7wxPanelE[_ZTV10wxScrolledI7wxPanelE]+0x698): not defined link to `wxScrollHelper::DoShowScrollbars(wxScrollbarVisibility, wx...
by TheMechanist
Mon 31 Jul, 2017 8:06 am
Forum: General
Topic: Best way capture pcem video & audio
Replies: 16
Views: 4204

Re: Best way capture pcem video & audio

OBS-Studio - I'm using OpenGL 2.1 hm .. at least OBS could report, that it didn't found right version instead of simply crashing ..

Cool, will give the new PCem version a try !
by TheMechanist
Sat 29 Jul, 2017 9:41 pm
Forum: General
Topic: Best way capture pcem video & audio
Replies: 16
Views: 4204

Re: Best way capture pcem video & audio

OBS Studio - immediately after start, after it failed to create GL context ..

Cool, wx is the the new gui in development ? is the daily snapshot stable or should I wait for v13 ?
by TheMechanist
Sat 29 Jul, 2017 7:04 pm
Forum: General
Topic: Best way capture pcem video & audio
Replies: 16
Views: 4204

Re: Best way capture pcem video & audio

OBS Studio crashed with memory violence on Ubuntu 16.04 .. btw. PCem changes window size on Linux everytime the resolution changes (textmode/gfx) and does it too while boot process, is there a way to keep a fixed windows size like DOSBox does, at least on linux it is hard to capture screen that's wh...
by TheMechanist
Fri 28 Jul, 2017 5:24 pm
Forum: General
Topic: Best way capture pcem video & audio
Replies: 16
Views: 4204

Re: Best way capture pcem video & audio

... tried VirtualDub (Win7), but didn't get it to work, not my cup of tea .. FFSplit is really cool ! .. will try OBS Studio for Linux ..
by TheMechanist
Thu 27 Jul, 2017 3:13 pm
Forum: General
Topic: Recommended settings for bog-standard i286
Replies: 15
Views: 3608

Re: Recommended settings for bog-standard i286

can't proof it, maybe, but it's definitately helpful to have more than one benchmark and values that run on real hardware ..