Re: DOS file size limit

Posted on 2022-05-16, 16:38

by

by BloodyCactus

in DOS

in DOS

This is interesting, as the last DOS compile of 7zip archiver (v. 16.02), *does* work with and extract files of up to 4GiB -1 in native, unpatched, baremetal "DOS 7.1", and it appears to set the "extended size" flag. However, it also works with such files on FAT16 drives with 64kb cluster sizes. …

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Re: soundblaster awe 32

Posted on 2022-05-16, 12:57

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

since this isnt a pnp card, did you set the jumpers correctly to not clash with other existing IRQ + DMA on your other cards? These are the reasons for it hanging.

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Re: A DOS program to test OPL2 percussion (0xBD)

Posted on 2022-05-13, 18:03

by

by BloodyCactus

in PC Emulation

in PC Emulation

Electronic Genets wrote on 2022-05-13, 15:19: I don't know where is bug tracker of DosBox to report it[/b]. I found multiple GitHub accounts with DosBox (clones?). The official one is https://sourceforge.net/p/dosbox/bugs/ its not on github.

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Re: Any notable unofficial DOS conversions of games?

Posted on 2022-05-11, 19:10

by

by BloodyCactus

in Milliways

in Milliways

I suppose there are a lot more games of this kind out there, any suggestions? (I'm not talking about the obvious stuff like those hundreds of Tetris clones) wheres the line tho? 99% the things on the list are just clones of whatever, identical as the "hundreds of Tetris clones" you dont want... As …

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Re: Home Computer - was it a toy or a Personal Computer for the masses?

Posted on 2022-05-06, 11:25

by

by BloodyCactus

in Milliways

in Milliways

Commodore 64 had LOADS of business software, printers, etc. primarily sold for games for sure, but dont discount its ability to word process or run spreadsheets etc. heck it even had GEOS!

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Re: Split-channel MIDI setup: CM-32L cluster (64 voice polyphony) & SC-55 cluster (48 voice polyphony)

Posted on 2022-04-27, 13:03

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

does it actually renumber the channels on split, so you said odds, evens so like 1,3,5,7,9 becomes 1,2,3,4,5 on device 1? the screenshot of the sc55 displays seems like this is not the case, so your not actually doubling the channel count, so seems kind of pointless. you could just run a midi …

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Re: Microsoft Adventure from a 3.5" floppy

Posted on 2022-04-26, 21:33

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

glad you got it working! if you need help 😉 come over to http://solutionarchive.com/ its amazing place, best adventure hint/solution/map site!

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Re: Microsoft Adventure from a 3.5" floppy

Posted on 2022-04-26, 18:21

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

yes. you cant write different sized images to disks like that. 180kb had 9 sectors per track, 40 tracks, 1 side. 1.44mb is 18 sectors per track, 80 tracks, 2 sides

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Re: Microsoft Adventure from a 3.5" floppy

Posted on 2022-04-26, 17:00

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

sounds like your writing a 720kb image to a 144mb image or so.

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Re: Does DOSBox support changing the code page? (EDIT: nope not by using int 0x21 - The KeyB command does work however)

Posted on 2022-04-24, 12:37

by

by BloodyCactus

in DOSBox General

in DOSBox General

tr179 isnt a dos code page. so I dont know what you want. dosbox-x has no 857 codepage (in my nightly build), which is weird but, keyb us 857 would work if 857 existed...

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Re: Is there a good text editor for Windows that can handle MS-DOS code pages correctly?

Posted on 2022-04-23, 23:00

by

by BloodyCactus

in DOSBox General

in DOSBox General

I use jEdit, it has heaps of encodings available.

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Re: Minimum set of test equipment for an educated dummy. Any suggestions?

Posted on 2022-04-23, 17:46

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

for lcr, you want something like the DER EE De-5000. Thing with lcr/esr etc, you really want to test out of system not in system...

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Re: Is a Roland SC-55 Okay or do I need a MT-32 ?

Posted on 2022-04-18, 18:36

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

I'd say, they are distinct form each other. SC55 has the MT32 instrument list but its not MT32 compatible. MT32 has much deeper programability/functionality that is not replicated outside of MT32. Those roland devices like SC55, SC88 that have an MT32 mode doesnt mean much if the game is going to …

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Re: how to use DOS Int 21h + 4Bh for executing a sub program?

Posted on 2022-04-16, 21:08

by

by BloodyCactus

in Marvin \ Software

in Marvin \ Software

1. my problem is already solved since 2022-03-27 2. as i wrote: im using a linker command that reduces my minimum heap use in the exe header (so no need for modifiying my ram usage at runtime) i can do also use EXEHDR.EXE or modify with int 21h/4Ah - but the linker is already doing the work for me …

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Re: how to use DOS Int 21h + 4Bh for executing a sub program?

Posted on 2022-04-16, 17:07

by

by BloodyCactus

in Marvin \ Software

in Marvin \ Software

your com program that is doing the 4B needs to resize its memory with 4A, taking your stack into account. i don't need further dynamic memory allocation in this case, so i think it is ok that the called program claims all memory until its exited no, your exeload needs to resize itself to its …

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Re: how to use DOS Int 21h + 4Bh for executing a sub program?

Posted on 2022-04-15, 15:37

by

by BloodyCactus

in Marvin \ Software

in Marvin \ Software

your com program that is doing the 4B needs to resize its memory with 4A, taking your stack into account. eg: mov sp,end_stack mov ah,0x4a mov bx,sp shr bx,4 inc bx int 0x21 ;; last line in your code resw 128 dw 0 end_stack:

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Re: BeOS

Posted on 2022-04-09, 21:40

by

by BloodyCactus

in Milliways

in Milliways

yes, beos had troubles with newer cpus (from my old memory). haiku probably does not. I think it was ok up to P3. after that needed a patch.

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Re: BeOS

Posted on 2022-04-05, 11:59

by

by BloodyCactus

in Milliways

in Milliways

I still have my boxed copy of v4 I bought back in the day, I lost my v3 in the move and still have haiku on my k6 box. its fune for dabbling in, but gobe office is so clunky and there is nothing good in way of apps really.

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Re: mTCP hangs..

Posted on 2022-03-28, 18:45

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just to be very clear, mTCP doesn't care if your card is full duplex or half duplex. But it is totally dependent on the packet driver. my suspicion back in when I tested this was that the packet driver couldnt elegantly handle full duplex at 100mbit with IRQ's fast enough that my linux ftp server …

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Re: mTCP hangs..

Posted on 2022-03-28, 13:39

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

when I did loads of testing of the 905 packet drivers, turning off Full Duplex solved my problems with dos packet drivers + mtp. (I've ran these cards at full duplex without issues under linux and freebsd, so I know FD is not a problem outside of the combination of dos, packetdrivers and mtp)

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