Re: DOSBox .74 video capture rate

Posted on 2013-02-11, 21:35

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by ripa

in DOSBox Development

in DOSBox Development

I thought about this problem a bit more and experimented with Dosbox's source. I quickly hacked in a feature where Dosbox keeps track of the drift between real time and emulated time, and whenever the drift grows too large (currently > 10 millisec), Dosbox automatically tries to catch up by using …

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Re: DOSBox .74 video capture rate

Posted on 2013-02-10, 13:15

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by ripa

in DOSBox Development

in DOSBox Development

You won't get real-time video from Dosbox because Dosbox doesn't record any skips or stutters. It's easy to demonstrate just by setting a very high number of cycles and then recording a video. When playing, Dosbox stutters and skips a lot, but the recorded video won't have any of that. You can …

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Re: PC Speaker humming noise in Dosbox.

Posted on 2013-02-07, 16:55

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by ripa

in DOSBox Games/Apps

in DOSBox Games/Apps

It's probably the speaker shutdown feature. You should check if it's audible with dosbox-daum since it has some PC speaker improvements.

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Re: How to record FM music? (not with dosbox)

Posted on 2013-01-30, 21:35

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by ripa

in DOSBox General

in DOSBox General

Here's an example of what kind of signal/noise level should be attainable: http://www.sendspace.com/file/5oodny I recorded it years ago off what I think is a Sound Blaster 2.0.

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Re: Making a linux Dosbox folder

Posted on 2013-01-23, 21:09

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by ripa

in DOSBox General

in DOSBox General

I found my notes for a software project I did where I couldn't "install" anything on a Linux system, but I still had to have the software use some custom pre-built libraries. You could try downloading some pre-built dosbox packages like this one: http://packages.debian.org/squeeze/dosbox Extract the …

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Re: Logging?

Posted on 2013-01-14, 17:05

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by ripa

in DOSBox General

in DOSBox General

On Windows, dosbox -noconsole redirects everything to files called stdout.txt and stderr.txt. On Linux with Bash shell, you can use > and 2> to redirect to some file.

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Re: Dosbox window scaling

Posted on 2013-01-01, 16:25

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by ripa

in DOSBox Games/Apps

in DOSBox Games/Apps

I tested X-Com Apocalypse (Steam version but with Dosbox 0.74) and window scaling was preserved after the intro (although aspect ratio correction was briefly disabled between the executables because it went into text mode for a second). I used these settings: windowresolution=800x600 output=ddraw …

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Re: Leisure Suit Larry 7 music problem

Posted on 2012-12-06, 15:55

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by ripa

in DOSBox Games/Apps

in DOSBox Games/Apps

What's wrong with posting a solution to a thread without one?

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Re: Newbie question- how initialize some variable at adress.

Posted on 2012-12-06, 15:49

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by ripa

in DOSBox Development

in DOSBox Development

char* address = 0xA0000; *address = 0x55; // write 0x55 to 0xA0000 printf("contents of %p is %x\n", address, *address); // read from 0xA0000 You can verify this with Valgrind (since the address I used was unallocated): ==10002== Invalid write of size 1 ==10002== at 0x400589: main (in /secret/path) …

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Re: Are there anyways that can tell me the difference between ver 0.58 and 0.74 source code?

Posted on 2012-11-19, 15:50

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by ripa

in DOSBox Development

in DOSBox Development

Copy code to clipboard 1 svn diff https://dosbox.svn.sourceforge.net/svnroot/dosbox/dosbox/tags/RELEASE_0_58 https://dosbox.svn.sourceforge.net/svnroot/dosbox/dosbox/tags/RELEASE_0_74

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Re: Yet another attempt at vertical sync

Posted on 2012-08-23, 21:05

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by ripa

in DOSBox Development

in DOSBox Development

Very cool! I'll give it a go. I thought some video drivers implemented vsync so that when the application does the screen flip or update, the function returns immediately without blocking the application, and a back buffer then gets flipped at the correct moment in the background. However, I …

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Re: Desktop icons to run games in DOSBOX

Posted on 2012-06-13, 23:17

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by ripa

in DOSBox General

in DOSBox General

Create a unique config file for each program, then for each create a shortcut to dosbox.exe with the additional command line parameter -conf gameconfigfile.conf. edit: You can create the config files by just copying the original config file. Add the mountings and directory changes to the autoexec …

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Re: help with rise of the triad

Posted on 2012-04-06, 12:14

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by ripa

in DOSBox General

in DOSBox General

You should start by telling how you tried to use it. What you typed in Dosbox, etc.

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Re: DOSBOX won't recognize my Right-Alt key...

Posted on 2012-03-27, 20:37

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by ripa

in DOSBox General

in DOSBox General

As a workaround, you can set SDL_VIDEODRIVER=windib environment variable. That often fixes keyboard problems.

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Re: games w/head mounted display support/head tracking??

Posted on 2012-03-06, 21:03

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by ripa

in PC Emulation

in PC Emulation

System Shock has VFX-1 support.

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Re: DosBox somehow became new default to open all exe. files

Posted on 2012-02-21, 21:48

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by ripa

in DOSBox General

in DOSBox General

Well, "jenkinrocket" fixed his problem with a system restore. I don't know if Windows 7 has a safe mode (F8 on startup) but I would try editing the registry from there next.

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Re: DosBox somehow became new default to open all exe. files

Posted on 2012-02-21, 21:17

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by ripa

in DOSBox General

in DOSBox General

See one of these threads: DosBox takes over Windows Vista! Dosbox screwed up my computer - need help!! Re: I dont know if this is Dosbox's fault or not but...help!!! Dosbox replaced default .exe association

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Re: UFO Enemy Unknown horizontal mouse sensitivity too fast

Posted on 2012-01-23, 22:03

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by ripa

in DOSBox Games/Apps

in DOSBox Games/Apps

All PC monitors used to be 4:3. CRT monitors draw the picture by scanning horizontal lines from top to bottom and from left to right. Unless the monitor was badly calibrated, the first line started at the top left corner of the tube's visible area, and the last line ended at the bottom right corner, …

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Re: UFO Enemy Unknown horizontal mouse sensitivity too fast

Posted on 2012-01-23, 17:01

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by ripa

in DOSBox Games/Apps

in DOSBox Games/Apps

The correct aspect ratio of the game is 4:3.

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Re: [Help needed] Using DOSBox to disassemble Rayman.

Posted on 2011-12-07, 16:30

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by ripa

in DOSBox Development

in DOSBox Development

Thanks for the tip 😀

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