Re: UMB support?

Posted on 2005-06-30, 21:46

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by wd

in DOSBox General

in DOSBox General

Well UMBs can be resized, but this is not done anywhere i know of. Generally it works like this: something provides upper memory areas through the XMS-interface, namely EMM386 is doing this. The areas are (parts of) segments that are unused with the current computer configuration, like some ROM when …

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Re: UMB support?

Posted on 2005-06-30, 12:07

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by wd

in DOSBox General

in DOSBox General

Just noticed that Commander Keen 4/5 can utilize UMBs 😀 Does the loadhigh work fine for other TSRs? When disabling ems you get one additional 64kb upper memory block which should be enough for most things. wd

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Re: UMB support?

Posted on 2005-06-27, 20:38

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by wd

in DOSBox General

in DOSBox General

The attached file isn't tested excessively, but seems to do a good job loading TSRs into upper memory. Tried cptask which can load itself into UMBs, even unloading from memory worked fine. If you need more UMBs, disable ems (Der Clou needs this). Please note any odd things if possible, or …

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Re: Kings Quest 6 problems

Posted on 2005-06-26, 20:08

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

Obviously running a WINDOWS program in a DOS emulator does not work as well.

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Re: Flight Sim "Advanced Tactical Fighters" won't run

Posted on 2005-06-26, 16:45

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

Does the rip need some cd thing like fakeCD or so? Concerning memory, set ems=false in dosbox.conf as the game seems to require xms only. Also try xms=false in addition to see if it can handle memory itself (you could use different values for memsize inside dosbox.conf, like memsize=8 or memsize=64 …

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Re: I'm having problem to install STRIKE COMMANDER.

Posted on 2005-06-25, 20:22

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

If you have access to a windows computer, you can try the attached executable. Use DLLs from the official dosbox release or some others, any missing DLLs should be downloadable from the internet somewhere. Do NOT use ems=false with this build. wd

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Re: UMB support?

Posted on 2005-06-25, 18:41

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by wd

in DOSBox General

in DOSBox General

Actually i was not thinking about the programs that provide the support, just the interface that is used. Now EMM386 uses the XMS-interface to supply UMBs. Any more games/progs that can utilize UMBs besides Der Clou??? thx

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Re: UMB support?

Posted on 2005-06-25, 09:46

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by wd

in DOSBox General

in DOSBox General

XMS function 10 allocates upper memory. Not?

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Re: UMB support?

Posted on 2005-06-24, 20:29

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by wd

in DOSBox General

in DOSBox General

Have an UMB-implementation here, but only the xms-part. Will see if it can be blown up to support LH and so. wd

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Re: improve protected mode emulation?

Posted on 2005-06-24, 08:26

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by wd

in DOSBox General

in DOSBox General

...but of course you can present your patches that improve the pmode in the dev forum. wd

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Re: UMB support?

Posted on 2005-06-24, 08:24

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by wd

in DOSBox General

in DOSBox General

The whole dos portion (except for a tiny amount of crucial dos-tables) is already out-of-low-mem, so DOS=HIGH is always set (in a way...). Dos-UMBs are not supported as there's little need for it. Besides that, DOS=... has no effect with dosbox (neither in a dummy config.sys, nor in dosbox.conf). …

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Re: does dos box have a save state feature?

Posted on 2005-06-16, 10:26

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by wd

in DOSBox General

in DOSBox General

As Qbix said, there's support for hex-dumps in the debugger-enabled compiles of dosbox (see the development forum). GameWizard: see Memory Freezing / cheating wd

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Re: error 2003: Integer divide by 0

Posted on 2005-06-16, 08:10

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by wd

in DOSBox General

in DOSBox General

Hard to say what's wrong then, as division by zero can be the result of just anything. Some stuff to try: use the latest CVS version of dosbox (see the dev forum) try some older dosbox versions use the program from different paths (path length/depth) use loadfix (with different values) try to …

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Re: error 2003: Integer divide by 0

Posted on 2005-06-14, 10:22

by

by wd

in DOSBox General

in DOSBox General

What program is it? And is it available somewhere?

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Re: Patching binary files from inside DOSBox

Posted on 2005-06-13, 08:08

by

by wd

in Milliways

in Milliways

Well you can put the patch into a simple TP program so you get the whole thing in less than 4kb. But i didn't bother as the packed executable was just below 100kb so who really needs it and doesn't have a hexeditor at hand (there are pretty small and good ones out there btw.) could download it …

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Re: "Der Clou!" (Freeware) with Dos Box

Posted on 2005-06-12, 14:06

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

The runtime error in the installer is a bug in localDrive::FindFirst. As the installer searches x:\lha.exe with all attributes set, dosbox assumes that they are searching for the volume label. Maybe the conditions there have to be refined to provide correct results here. So installing will only work …

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Re: Ultima7 - Serpent Isle - no XMS?

Posted on 2005-06-12, 14:04

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

Tried with xms=false AND ems=false? Does it have 0 bytes then, too?

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Re: "Der Clou!" (Freeware) with Dos Box

Posted on 2005-06-12, 11:09

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

e000 is the segment (that one should be read/write inside dosbox and unused i think), so they'll get e000 as their UMB and are happy with it... I just extracted the files, the installer has a zero when loading the fpu regs for a division, but didn't try 0.61 yet, thanks for the hint. wd

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Re: "Der Clou!" (Freeware) with Dos Box

Posted on 2005-06-11, 13:55

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by wd

in DOSBox Games/Apps

in DOSBox Games/Apps

Use a hex-editor and change the following bytes from address 0x1bed0 to 0x1bed3 of theclou.exe: 0x85 to 0xbb 0xc0 to 0x00 0x74 to 0xe0 0x11 to 0x90 Or use the attached executable. Didn't play it too long, but starts fine. ONLY use the modified .exe file inside dosbox. wd

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Re: does dos box have a save state feature?

Posted on 2005-06-08, 11:56

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by wd

in DOSBox General

in DOSBox General

Do you actually need a save/load functionality (as you typed in the topic) or just to dump the memory into a file (as you say in your posting)? None of those is implemented in dosbox as is, but you could achieve the 2nd (mem dumps) with a little programming. wd

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