Re: dosbox-staging (DOSBox Git repo)

Posted on 2019-12-26, 09:09

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by Ringding

in DOSBox Development

in DOSBox Development

Building the macOS bundle should be quite straightforward and consists mostly of copying files in the right places. I would be surprised if the script that does this is not included with the DOSBox sources. Maybe I can look into it over the next few days.

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Re: PowerPC Dynamic Recompiler (patch)

Posted on 2019-10-05, 17:22

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by Ringding

in DOSBox Development

in DOSBox Development

Isn’t this dead since 10.5?

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Re: dosbox-staging (DOSBox Git repo)

Posted on 2019-10-03, 07:41

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by Ringding

in DOSBox Development

in DOSBox Development

Probably. But I seem to remember a similar discussion a few months ago where the outcome was exactly this – demonstrate the value and go from there. I think this is what is being done here.

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Re: dosbox-staging (DOSBox Git repo)

Posted on 2019-10-03, 07:10

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by Ringding

in DOSBox Development

in DOSBox Development

I guess this is one of the reasons for doing this exercise.

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-15, 16:18

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by Ringding

in DOSBox Development

in DOSBox Development

The problematic instruction is pop dword [eax+0x87], where [eax+0x87] points into a non-present page. The normal core handles this quite differently from the dynrec core by using mem_writed_inline which spawns a nested run loop via PAGING_PageFault to run the exception handler and then continues …

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-05, 17:57

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by Ringding

in DOSBox Development

in DOSBox Development

Ringding wrote: Yes. Setting the translation block size to 1 does not make any difference. Not with and not without the pop_ev commented out. Rereading my own report from earlier, I have to correct this. It does make a difference with the pop_ev left alone. Then it exits Windows when I try to run …

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-05, 17:50

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by Ringding

in DOSBox Development

in DOSBox Development

Is that fixed with commenting out the pop_ev instruction block ? As that was the bug I am trying to fix. Yes. Then it works. Also imgmount. So windows does boot if you set the instructions to 1 (and not apply the push_imm commenting) ?, exit windows happens at my place during startup, so I don't …

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-04, 20:06

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by Ringding

in DOSBox Development

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The dynrec problem seems to be caused by the S3 video driver wanting to switch into text mode. It does not happen with: - Standard VGA - S3 driver with windowed DOS Prompt Driver: S3 Trio64V 1.70.04 1024x768 64K C SF I can imgmount an iso file without a problem.

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-04, 09:45

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by Ringding

in DOSBox Development

in DOSBox Development

What I don’t get: In the other thread you mentioned that just starting the DOS Prompt caused the dynrec error, same as for me. How come that you are reporting a different experience now?

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-03, 22:30

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by Ringding

in DOSBox Development

in DOSBox Development

Last update: I missed the part about this being about 0.74-2. I used the trunk version previously, but it makes absolutely no difference.

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-03, 22:18

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by Ringding

in DOSBox Development

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No, also not with Win 3.11. 1. imgmount works (at least, does not crash) 2. Windows starts and seems to run normally.

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-03, 21:41

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by Ringding

in DOSBox Development

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Uh, so you're talking about Windows 3.11, not Windows for Workgroups. Is that right? I used WfW. I'll have to reinstall anyway, as I just removed my image accidentally with an incautious usage of git clean -dfx 😉. 🙁

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Re: Dynrec (x86_64 linux) problems with win3.11

Posted on 2019-04-03, 21:34

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by Ringding

in DOSBox Development

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I cannot, neither of them. For 1., I don't get so far, because it crashes when I start the DOS prompt: Exit to error: DynrecCore: illegal option in dyn_mov_seg_ev For 2., I don't see a difference, except that it does not crash anymore when I start the DOS prompt, but instead seems to exit Windows …

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Re: DOSBox-X branch

Posted on 2018-12-23, 12:39

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by Ringding

in DOSBox Patches

in DOSBox Patches

FYI The patch in svn r4177 referenced from this other thread is also required for DosBox-X and works (tested on Fedora 29 x86_64).

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Re: DOSBox bug OS X regression

Posted on 2018-12-12, 13:02

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by Ringding

in DOSBox Development

in DOSBox Development

macOS is very troublesome regarding frame updates. The problem is that DOSBox wants to update its screen 70 times per second, but macOS doesn't like this, because it considers it wasteful, and throttles DOSBox, which leads to the sound stuttering problem. Unfortunately, the exact behavior varies …

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Re: (Windows 3.11) Opening Virtual Memory menu causes System Error in recent SVN builds

Posted on 2018-08-07, 18:21

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by Ringding

in DOSBox Development

in DOSBox Development

Easily reproducible. With svn 4114 it works. With 4115 it goes to black screen and locks hard. With 4116, division by zero is shown.

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Re: DOSBox OS X built for OS X now 64bit

Posted on 2018-04-20, 14:02

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by Ringding

in DOSBox Development

in DOSBox Development

360x400 32bit dynamic-x86 84.6 fps normal 10.3 fps 64bit dynrec 26.3 fps normal 11.3 fps

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Re: DOSBox OS X built for OS X now 64bit

Posted on 2018-04-20, 13:08

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by Ringding

in DOSBox Development

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@Qbix: Number 2) Results for core=normal (cycles=max): i386: 5.4 fps x86-64: 6.0 fps Compiler: $ gcc -v Using built-in specs. COLLECT_GCC=/usr/bin/gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/7/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-redhat …

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Re: DOSBox OS X built for OS X now 64bit

Posted on 2018-04-20, 09:23

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by Ringding

in DOSBox Development

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And now back to the topic of 64bit and performance: DOS Quake 1 (1.08), 800x600, timedemo demo2 Intel(R) Xeon(R) CPU E3-1225 v3 @ 3.20GHz (Haswell) Fedora 26 x86_64 i386 dynamic-x86: 54.0fps i386 dynrec: 17.0fps x86-64 dynrec: 16.0fps That's a dramatic gap!

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Re: DOSBox OS X built for OS X now 64bit

Posted on 2018-04-19, 15:02

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by Ringding

in DOSBox Development

in DOSBox Development

I thought so too, but I built SDL myself from the same source with both toolchains with no effect. I also built DOSBox against those SDL sources and even swapped one dylib for the other at run time using DYLD_LIBRARY_PATH, again with no effect whatsoever. Nothing would change the basic fact: DOSBox …

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