Search found 71 matches

by TheMechanist
Tue 08 Mar, 2022 3:24 pm
Forum: General
Topic: unable to compile PCem under Linux
Replies: 10
Views: 3500

Re: unable to compile PCem under Linux

compiled it some days ago for Ubuntu 18.04 ..

Install the following packages:
libsdl2-dev
libwxbase3.0-dev
libwxgtk3.0-dev
libopenal-dev
build-essential

and do:
./configure --enable-release-build --enable-networking --enable-alsa
make
by TheMechanist
Tue 08 Mar, 2022 3:22 pm
Forum: General
Topic: [HOWTO] Linux: Mount & create pcem images
Replies: 11
Views: 31263

Re: [HOWTO] Linux: Mount & create pcem images

You can use this tool too, I use it as daily driver for cross platform dev & testing

https://pcem-emulator.co.uk/phpBB3/view ... p42#p15414
by TheMechanist
Mon 03 May, 2021 4:21 pm
Forum: General
Topic: [Linux/WSL] Host to guest mapping tool
Replies: 3
Views: 2447

Re: [Linux/WSL] Host to guest mapping tool

Although the tool was developed on and for Linux and it uses a lot of "non portable linux functions" like mmap, fallocate or fstatfs, so compiling with cygwin/mingw isn't unfortunately an option, the tool runs flawlessly with WSL (Windows subsystem for Linux, tested with debian, but should...
by TheMechanist
Fri 30 Apr, 2021 2:49 pm
Forum: General
Topic: Host machine survey
Replies: 186
Views: 255396

Re: Host machine survey

Thinkpad Edge 13" (0217-2YG)
Core i3 U380 (4 Cores, 1,33 GHz)
Intel HD
4 GB RAM
Void Linux
Emulation up to 486DX40 runs at full speed ...
by TheMechanist
Tue 27 Apr, 2021 8:10 am
Forum: General
Topic: [Linux/WSL] Host to guest mapping tool
Replies: 3
Views: 2447

Re: [Linux] Host to guest mapping tool

Good news! Tested it with Windows 98. If you change the properties of the drive, which is associated with the swap42 image, to "removable" (hardware manager) Windows detects filesystem changes by itself so it's possible to do a rescan even for Windows 98 as guest OS (if windows monitors it...
by TheMechanist
Mon 26 Apr, 2021 1:09 pm
Forum: General
Topic: [Linux/WSL] Host to guest mapping tool
Replies: 3
Views: 2447

[Linux/WSL] Host to guest mapping tool

Hi, creating images, mounting them and file sharing can be annoying, especially with MSDOS as guest OS without network sharing, so I coded this little tool to map a host directory to a raw hdd image, which could be refreshed from inside the guest, so cross development and testing is possible like wi...
by TheMechanist
Fri 09 Apr, 2021 5:48 am
Forum: General
Topic: Clustersize (and other things) ignored by MSDOS?
Replies: 4
Views: 1976

Re: Clustersize (and other things) ignored by MSDOS?

Interestingly enough MSDOS calculates disk size wrong (number of sectors per partition in VBR at offeset 0x20 doesn't change), when cluster size is set to 1024 (2 sectors) (chkdsk tells just half of size) .. but not, if cluster size is equal or above 2048 ... maybe you have another hint :D It was m...
by TheMechanist
Tue 06 Apr, 2021 6:16 am
Forum: General
Topic: Is there a way to force quit PCem?
Replies: 3
Views: 2194

Re: Is there a way to force quit PCem?

I think he asks for a PCem shortcut to end PCem
by TheMechanist
Mon 05 Apr, 2021 7:26 pm
Forum: Development
Topic: Debugging features?
Replies: 1
Views: 1990

Re: Debugging features?

by TheMechanist
Sun 04 Apr, 2021 7:19 pm
Forum: General
Topic: Clustersize (and other things) ignored by MSDOS?
Replies: 4
Views: 1976

Re: Clustersize (and other things) ignored by MSDOS?

I don't think that changing parameters on a filesystem is a wise move, it would lead to a heavily corrupt filesystem (did you try to execute chkdsk after that?). Of course, kids, don't try this at home ;) ... but not in my case, since it's my own tool that creates the image and pre-formats it :ugee...
by TheMechanist
Sun 04 Apr, 2021 10:08 am
Forum: General
Topic: Clustersize (and other things) ignored by MSDOS?
Replies: 4
Views: 1976

Clustersize (and other things) ignored by MSDOS?

Hi folks, I created an empty hdd image (one primary partition) which is mounted as Drive D (different machines from i286 to 486). The machines use MS DOS 5.0 (the image creation process is part of a tool I'm coding atm). The hdd image is derived from CHS 733, 7, 17 specification and (even automatica...
by TheMechanist
Mon 08 Mar, 2021 10:39 am
Forum: Development
Topic: [Request] Atari PC 4
Replies: 1
Views: 3276

[Request] Atari PC 4

would be nice to see Atari PC 4 emulated too if not too complicated

[Moderator : Please do not link to sites containing copyrighted material]
by TheMechanist
Sun 07 Mar, 2021 8:58 am
Forum: General
Topic: [Howto] Build PCem v17 for void linux
Replies: 3
Views: 2418

Re: [Howto] Build PCem v17 for void linux

great .. the first distribution (?) that has pcem in its official repositories!
by TheMechanist
Thu 04 Mar, 2021 6:19 pm
Forum: General
Topic: Found shader settings to emulate 14" VGA CRT nearly perfectly
Replies: 2
Views: 7122

Re: Found shader settings to emulate 14" VGA CRT nearly perfectly

Yeah, thanks, looks promising! Although I do not know what the image of the monitor looks like in the original, the shader provides an image that looks quite authentic! PCem without shaders (click to enlarge) https://i.ibb.co/4Zgqyx3/Orig1.png https://i.ibb.co/y6X0g1f/Orig2.png https://i.ibb.co/5KWp...
by TheMechanist
Thu 04 Mar, 2021 11:56 am
Forum: General
Topic: Best Shades for authentic crt display?
Replies: 6
Views: 3212

Re: Best Shades for authentic crt display?

I'm assuming you don't have the proper video drivers installed as you may lack a OpenGL ICD (i.e. Windows' own WARP GL->D3D wrapper for their stock drivers doesn't implement everything) I'm using PCem for Linux with a OpenGL 3 compatible GPU .. it seems to be a problem - probably - caused by PCem -...
by TheMechanist
Wed 03 Mar, 2021 7:36 pm
Forum: General
Topic: Best Shades for authentic crt display?
Replies: 6
Views: 3212

Re: Best Shades for authentic crt display?

from this http://pcem-emulator.co.uk/phpBB3/viewtopic.php?t=2881 hm .. wanted to try the shaders linked in the thread above (from https://github.com/leilei-/someshaders ) and get only: "C-style initialization requires the GL_ARB_shading_language_420pack extension" Don't know where or how ...
by TheMechanist
Fri 26 Feb, 2021 3:06 pm
Forum: General
Topic: [Howto] Build PCem v17 for void linux
Replies: 3
Views: 2418

[Howto] Build PCem v17 for void linux

Hi folks, I switched to (amazing ;)) VOID Linux and 'cause there is something a little bit different I wanted to help you to build pcem (v17): Update system sudo xbps-install -Su Install prerequisites sudo xbps-install base-devel wxWidget-devel libopenal-devel SDL2-devel Configure & make ./confi...
by TheMechanist
Sun 20 Dec, 2020 7:31 pm
Forum: General
Topic: VGA Emulation - CRTC settings
Replies: 1
Views: 1591

VGA Emulation - CRTC settings

Hi, I'm playing around with tweaked VGA modes (different resolutions and so on) by changing VGA register settings .. and I was wondering if the vga emulation will "detect" settings that won't work on real hardware and especially (real) CRT monitors (where you get error messages like out of...
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: 9756

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: 4291

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: 11298

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 cm...
by TheMechanist
Thu 06 Dec, 2018 4:12 pm
Forum: General
Topic: Schneider Euro PC
Replies: 8
Views: 11298

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: 11298

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: 11298

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: 11298

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? G...
by TheMechanist
Tue 22 May, 2018 12:23 pm
Forum: General
Topic: Using special machine types
Replies: 5
Views: 6905

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: 6905

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: 5997

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 ..