Re: Ways to dump memory to a file->

Posted on 2020-02-05, 13:35

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by junglemontana

in DOSBox General

in DOSBox General

Hm... in many cases it might be a better idea to dump memory into a binary file instead of text...? Then you can examine it using a hex editor (if you know what you are looking for) or load it in a disassembler if you want to analyze the code parts. But if you want to examine the game code, try …

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Re: Heads up: Vogons will be updated

Posted on 2019-12-05, 10:21

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by junglemontana

in Milliways

in Milliways

I hope all important features will still work without Javascript.

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Re: imgmount

Posted on 2019-12-05, 09:42

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by junglemontana

in DOSBox General

in DOSBox General

Are there any special reasons to imgmount from a mounted drive instead of host directory?

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Re: screen size

Posted on 2019-12-05, 09:28

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by junglemontana

in DOSBox General

in DOSBox General

Hi, what solution would be ok for you? Having an option of fullscreen with black border around maybe? Have you tried using specific scalers, to make it more agreeable? Here's the documentation: https://www.dosbox.com/wiki/Scaler - using e.g. scaler tv2x might make the large pixels much less …

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Re: Hardware experts, are we ever going to see replica 3D GPU's?

Posted on 2019-10-31, 14:40

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by junglemontana

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There is nothing preventing something like a Voodoo 1 FPGA recreation, except interest and costs. No problem in reverse engineering it also by the usual ways of decapping + microscope + trial and error for that purpose. The only thing preventing it is complexity: Even an early accelerator chip like …

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Re: Hardware experts, are we ever going to see replica 3D GPU's?

Posted on 2019-10-27, 11:09

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by junglemontana

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think we are already in a place where things like a simple Voodoo 1 card should be easily recreated using FPGAs.. I mean if DOSBOX branches and PCem can do it in software.. *shrug* It wouldn't be cost effective probably, but once they are rare enough it will happen for sure. But are the software/ …

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Re: Can anyone help me get DOSBox running on my PPC Mac?

Posted on 2019-10-14, 15:10

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by junglemontana

in DOSBox General

in DOSBox General

Currently checking my G4-PPC MacMini 1.42Ghz with 10.3.9 and Dosbox 0.72 with dappelgrey-frontent. working fine, but is relatively slow, even with 6000 cycles. Does it depend which renderer I choose? fullscreen/window ... Doc I don't know about the rendering performance. But you may be interested …

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Re: DOSBox Feature Request Thread

Posted on 2019-10-08, 08:29

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by junglemontana

in DOSBox General

in DOSBox General

There is a feature in dosbox-x that should be backported to dosbox. OpenDML (AVI 2.0) avi support. I actually have a diff between r4000 and dosbox-x's files for that somewhere, but basically the issue is that if you're recording the video using the internal recording mechanism, if it hits the file …

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Re: DOSBox debugger

Posted on 2019-09-08, 20:19

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by junglemontana

in DOSBox Development

in DOSBox Development

This may be a dumb question, but how does the IV command actually work? Or what are its limitations? I started a program (protected mode NE exe) under the debugger by doing "debug program.exe", then used the IV command to name some addresses as variables. I also saved the variable list with the SV …

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Re: DOSBox Compilation Guides

Posted on 2019-09-08, 09:16

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by junglemontana

in DOSBox General

in DOSBox General

g++ -g -O2 -mno-ms-bitfields -static-libgcc -static-libstdc++ -s -o dosbox.exe dosbox.o winres.o cpu/libcpu.a debug/libdebug.a dos/libdos.a fpu/libfpu.a hardware/libhardware.a gui/libgui.a ints/libints.a misc/libmisc.a shell/libshell.a hardware/mame/libmame.a hardware/serialport/libserial.a libs/ …

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Re: Dosbox dropping pressed keys?

Posted on 2019-08-18, 12:32

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by junglemontana

in DOSBox General

in DOSBox General

I've also noticed this with GTA1, both low-color (GTA8) and high-color (GTA24) versions, see: GTA1 - up arrow "stops" after a while It only happens in full screen mode, and it only seems to happen after using another key while walking.

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Re: GTA1 - crash when changing video mode

Posted on 2019-08-17, 18:47

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by junglemontana

in DOSBox Games/Apps

in DOSBox Games/Apps

I tried the high color version (GTA24) in windowed mode, output set to surface, scaler set to none, windowresolution set to original and the aspect ratio problem still occurred so it's not apparently related to any scaling. It's either a bug in Dosbox or in the game. Probably in the game. The game …

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Re: GTA1 - up arrow "stops" after a while

Posted on 2019-08-17, 18:35

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by junglemontana

in DOSBox Games/Apps

in DOSBox Games/Apps

FulValBot wrote: Try to disable bloc num (but i suggest to change keys) Do you mean Num lock? It doesn't seem to help, I tried with Num lock on and off but the problem occurred in both cases.

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Re: GTA1 - crash when changing video mode

Posted on 2019-08-02, 13:52

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by junglemontana

in DOSBox Games/Apps

in DOSBox Games/Apps

The low-color version works quite well but it doesn't seem to have an option to change the game resolution. It also has a very low in-game resolution. It suffers from this problem as well, just like the high-color version: https://www.vogons.org/viewtopic.php?f=33&t=68120 edit: I tried the GTA …

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Re: GTA1 - crash when changing video mode

Posted on 2019-07-23, 19:43

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by junglemontana

in DOSBox Games/Apps

in DOSBox Games/Apps

If this is with GTA24.EXE (hi-color) then use GTA8.EXE (256 color) instead; the former is prone to crashing, and not the gameplay kind, which appears to be caused by flaws in the game code. Yes, this is the high-color version. I'm pretty sure I have occasionally managed to switch to 800x600x32 but …

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Re: GTA1 - crash when changing video mode

Posted on 2019-07-23, 10:41

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by junglemontana

in DOSBox Games/Apps

in DOSBox Games/Apps

The line mentioned in the crash is probably a corrupt event after switching the videomode. Not really sure what is happening. Does it always crash at the same line ? Do you mean this: Illegal read from 1018afab, CS:IP 2e0:1018afaa I think it's always the same... I repeated this 3 times, once with …

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Re: ISO + CUE - Fixing Audio in DosBox Mounts [Redbook]

Posted on 2019-07-23, 09:30

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by junglemontana

in DOSBox General

in DOSBox General

I have been ripping my old dos games down to launch on DOSBox, but I kept running into issues with Redbook CD Audio. I used several different programs to Clone the discs in various formats, but even discs without protections would run into weird errors after mounting. I could copy the contents down …

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Re: DOSBox Compilation Guides

Posted on 2019-07-19, 14:49

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by junglemontana

in DOSBox General

in DOSBox General

Applied the following patch. --- dosbox-r4228/src/debug/debug_gui.cpp 2019-05-26 13:36:35.000000000 -0700 +++ devel/src/debug/debug_gui.cpp 2019-06-16 14:14:10.389844800 -0700 @@ -274,12 +276,12 @@ noecho(); /* don't echo input */ nodelay(dbg.win_main,true); keypad(dbg.win_main,true); - #ifndef …

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Re: maximizing dosbox performance in 2019, getting full fps

Posted on 2019-07-19, 13:06

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by junglemontana

in DOSBox General

in DOSBox General

Just a note about Arch Linux: it seems that SDL_sound is only needed for compressed disc audio (rarely needed I guess?) and SDL_net is only needed for networking features. I just ignored these libraries and managed to compile a 32-bit Dosbox on Arch. If those features are needed, one can install SDL …

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GTA1 - crash when changing video mode

Posted on 2019-07-19, 08:24

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by junglemontana

in DOSBox Games/Apps

in DOSBox Games/Apps

I found a freeze/crash problem with the original Grand Theft Auto. When playing, video mode set to 640x480x32, press F11 and choose video mode 800x600x32. Dosbox freezes and audio starts looping. Choosing certain other video modes may also result in a freeze, or sometimes distorted aspect ratio. If …

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