Re: DOSBox-X branch

Posted on 2024-08-11, 21:47

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by almeath

in DOSBox Patches

in DOSBox Patches

PCem and 86Box emulate a complete x86 PC, down to the individual hardware components. So that is why you will often experience more accurate and stable 3dfx emulation in PCem, especially if running Windows 95/98 games. 3dfx support in DOSBox-X is achieved through direct software emulation of a …

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Re: DOSBox SVN for macOS - custom patched version

Posted on 2024-01-03, 13:38

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by almeath

in DOSBox General

in DOSBox General

Hello Could you re-upload the binary? I have problem with dosbox and dosbox-x on mac, would like to try svn build. I fully understand it's not supported and actively developed. Thank you Sorry, not sure why that link broke. I have fixed it now. I do not mind answering any questions you have about …

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Re: DOSBox SVN for macOS - custom patched version

Posted on 2023-12-26, 18:08

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by almeath

in DOSBox General

in DOSBox General

Thanks for the positive feedback. I personally never had much luck getting OpenGlide to work in a stable manner in macOS, even with my custom patched version. It does continue to function under macOS 14 Sonoma, but there are quite a few glitches in most games, including missing textures and crashes. …

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Re: Speed of the dynamic core..

Posted on 2023-10-16, 07:56

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by almeath

in DOSBox General

in DOSBox General

Use a fixed cycle count instead of auto if you want consistent results. I have been avoiding the use of auto, using either fixed cycles (i.e. "fixed 200,000") or "max". Benchmarks aside, in real world use, I tested against Lands of Lore 2 running in Windows 98. In the Mac SVN build I can set cycles …

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Speed of the dynamic core..

Posted on 2023-10-16, 03:02

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by almeath

in DOSBox General

in DOSBox General

This observation, while referring to the other branches of DOSBox, is primarily about SVN so bear with me. For a while now I have been building my own SVN in a MacOS environment, which gives me a binary that achieves very fast performance. On average, I see scores of about 1500-1750 on Chris's 3D …

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Re: DOSBox-X branch

Posted on 2023-09-04, 06:57

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by almeath

in DOSBox Patches

in DOSBox Patches

TheGreatCodeholio wrote on 2023-09-04, 05:59: There is also a new September 2023 release. Thanks. I just downloaded it. I will try out the 65536 rate and see how I go. Generally, I go with the highest rate available because while not always authentic, I like having the best sound quality.

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Re: DOSBox-X branch

Posted on 2023-09-03, 17:40

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by almeath

in DOSBox Patches

in DOSBox Patches

I recently downloaded and installed the May 2023 release of DOSBox-X (Windows SDL1) and have a question about the PC speaker settings. I am wondering why it defaults to the rate of 65536 in the conf file that is generated when I performed a fresh install of DOSBox-X? In the wiki it says the default …

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-18, 12:39

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

As already mentioned above, some artists understood that their game would be displayed on a 4:3 monitor, and adjusted their art accordingly. Others did not, and that's why their games look off in that aspect ratio. There were also some multi-platform games which had to make compromises due to the …

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-18, 12:37

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

Nilex wrote on 2023-04-15, 09:39: See you again OP, if/when you catch up to audio side of things... 😀 Thanks - I have already gone down that rabbit hole 😉

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-15, 09:15

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

Those are all good points, and all likely to be valid to varying degrees, depending on when/where/how the specific game was created. I saw some old footage of artists drawing using Deluxe Paint back in the 80s/90s on the Amiga, and the circles were coming out as ellipses on their CRT monitors. As …

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-14, 06:00

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

Well, even back in the day some (or many) CRT monitors had buttons with which you could stretch and squeeze the image as you like, thus correcting such discrepancies, so period accurate would not mean to force it to 4:3 no matter what. True, 320x200 was meant to fill a 4:3 screen, but I agree with …

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-12, 06:31

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

BTW, Balance of Power is not "EGA-only". Like many Windows programs, it displays according to the video driver that Windows (1.x or 2.x in this case) has been configured to use. Thanks, I had forgotten that Balance of Power is running on top of Windows 1.x, so I will check what driver is being used …

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-12, 05:22

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

Thanks, I totally forgot that I had previously raised SimCity as an example. And thanks @jmarsh, I had been thinking solely of the machine type setting, but did not realize that Balance of Power, being an EGA-only game, was just forcing a switch to that mode, regardless if I selected vgaonly or svga …

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Re: How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-11, 23:38

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

Thanks for those comments, which are a big help. It seems that the discrepancy caused by DOS games using Amiga artists means that to be period accurate to a CRT, it should be enforced 4:3 aspect ratio every time, despite things looking a bit off. It is interesting that on some Macintosh and Amiga …

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How to get the "correct" aspect ratio in some DOS games in DOSBox

Posted on 2023-04-11, 08:46

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by almeath

in DOSBox Games/Apps

in DOSBox Games/Apps

I have been struggling with how to get the "correct" aspect ratio in some games in DOSBox, which do not seem to play by the rules. That is, using aspect=true to set the ratio at 4:3 results in a squashed appearance where circles look like ovals and squares look like rectangles. Likewise, cross-hair …

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Re: DOSBox-X branch

Posted on 2022-10-08, 16:15

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by almeath

in DOSBox Patches

in DOSBox Patches

I would recommend trying the regular Sound Blaster 16 (sb16). Windows 98 should already have the files to enable plug-and-play installation. If that, in conjunction with increasing the block size and prebuffer, makes no difference, then the issue you are experiencing is more likely to be related to …

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Re: DOSBox-X branch

Posted on 2022-10-04, 15:37

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by almeath

in DOSBox Patches

in DOSBox Patches

So there is no way to fix it then? I had some problems with audio stuttering that was resolved by increasing the blocksize and prebuffer values, but that was in the DOS rather than Win98 environment. I get good results from the following values (without any noticeable lag): blocksize = 2048 …

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Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-10, 22:37

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by almeath

in DOSBox Patches

in DOSBox Patches

DOSBox-X actually passes Intel's MCPDIAG.EXE tests... And it supports different FPU generations. https://github.com/joncampbell123/dosbox-x/pull/3415 Regarding 3dfx, DOSBox-X implements enough of PnP, such that the 3dfx voodoo is properly detected in Win9x and works. Either in OpenGL mode, or with …

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Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-10, 12:36

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by almeath

in DOSBox Patches

in DOSBox Patches

I really wouldn't trust any sort of test with DOSBox (nor DOSBox-X) under win95/98, there are major issues with the FPU emulation which can often break 3D games. Well, I can only judge it based on my own subjective experience. I just got Mask of Eternity, Lands of Lore 2 and F/A-18 Hornet all …

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Re: VIDEO - 3dfx voodoo emulation (SDL1)

Posted on 2022-09-10, 10:19

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by almeath

in DOSBox Patches

in DOSBox Patches

Looks like there was more stuff that needed to be done to facilitate non-Windows builds. The newest 20220906 version of the patch now modifies "configure.ac" with some stuff I cobbled together. No idea if it works but please try it out! Those changes appear to have done the trick, thanks. It …

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