Re: IS CD-ROM/HD Image booting in the work?
Posted on 2008-02-06, 19:39
Bastard!
Re: Demo application crashing.
Posted on 2008-02-06, 19:13
dosbox doesn't E_Exit for this demo, it just issues the int6 invalid instruction. The crash (ie. real dosbox crash) is most likely related to the cvs build he's using.
Re: IS CD-ROM/HD Image booting in the work?
Posted on 2008-02-06, 19:10
someone somewhere once posted a patch to emulate CD-ROM IDE hardware Where?
Re: DOSBOX under Linux framebuffer and 2 joysticks
Posted on 2008-02-06, 12:48
Well read what i wrote above (usescancodes).
Re: Demo application crashing.
Posted on 2008-02-06, 09:46
src/cpu/core_dyn_x86/decoder.h At the main switch (opcode) go down a few lines to the 0x0f switch (dual_code) and add a case 0x77: break;
Re: Demo application crashing.
Posted on 2008-02-06, 09:01
Is this the packer? The unpacker is pmwunlit, can handle the default pmode/w compression. Do you suggest adding a patch to dump the code segment or similar? Well if you manage to compile the dosbox sources, you can simply add the emms to behave like a nop.
Re: Demo application crashing.
Posted on 2008-02-06, 08:34
I just didn't think DOSBox would crash because of that. Official 0.72 release doesn't crash for me, maybe you can doublecheck that. I've just added the emms instruction as NOP in dosbox, didn't mess around with the demo executables (maybe there's some pmwunpack or so around so you could try it). …
Re: DOSBOX under Linux framebuffer and 2 joysticks
Posted on 2008-02-06, 08:28
Is the keyboard the only problem? Then see above. If not please describe in more details what doesn't work.
Re: "mount" does not mount an existing folder
Posted on 2008-02-06, 08:27
Well then bad luck.
Re: Demo application crashing.
Posted on 2008-02-05, 20:55
They actually use the emms only at one place, making it a nop gets the demo to work (plays fine up to the end afaict).
Re: Demo application crashing.
Posted on 2008-02-05, 20:18
It does NOT crash with 0.72 for me. this should be a very common problem and already taken care of... A dos game executing mmx stuff while not checking for the processor type is a common "problem"? DOSBox fully takes care of that in throwing exception6 which is what a real non-mmx processor does.
Re: Demo application crashing.
Posted on 2008-02-05, 18:13
Get some debugger-enabled build of dosbox, should be easier than disassembling a packed .exe Either the intstruction is intentional (nothing you can do besides implementing some mmx instructions) or it executes rubbish, where you'd have to look WHY it executes that.
Re: Demo application crashing.
Posted on 2008-02-05, 18:11
Exception6 is unknown opcode, just in case you wondered.
Re: Demo application crashing.
Posted on 2008-02-05, 17:51
Nope, but i didn't check this demo yet, could be they're executing rubbish, too.
Re: Demo application crashing.
Posted on 2008-02-05, 15:52
Should be some MMX instruction, so bad luck.
Re: DOSBOX under Linux framebuffer and 2 joysticks
Posted on 2008-02-05, 14:54
I think DOSBOX can be updated to be fully SDL too! Which part of dosbox is not "fully SDL"? Feel free to submit a patch!
Re: DOSBOX under Linux framebuffer and 2 joysticks
Posted on 2008-02-05, 14:20
Though you'd need usescancodes=false in dosbox.conf i'd guess, or hack that code out of sdlmain.cpp
Re: Sabre Team won't run
Posted on 2008-02-05, 08:50
Plz guide me through. -> README
Re: DynCore Illegal option in opcode 0xff
Posted on 2008-02-05, 08:50
Be sure you don't re-add stuff like keyb.com while testing. With the clean dosbox.conf, choose some mounting and stick to that (like mount c c:\oldstuff) and re-install the app.
Re: IS CD-ROM/HD Image booting in the work?
Posted on 2008-02-05, 07:47
but it would work on DOS. Doubt it, as there's way more than the mscdex interface needed for accessing a cdrom under msdos (block devices etc.). But keep us updated how far you got!
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