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Originally Posted By Anna Wu
I made a 40MB hard disk image (partitioned, formatted, bootable)
OS: FreeDOS
Added the Unreal and Copper demo.
Of course, this can be extended.

Available hard disk image formats: img/chd
+ FreeDOS boot floppy disk image with all necessary commands for the memory etc.


Public DL

If the PC driver have problems to load/start the floppy disk + hard disk image then use this DL
So you have to use the hard disk image only and these hard disk images contain all the necessary commands (FreeDOS).
Donīt forget to set the right hard disk type (BIOS setup)
Sectors: 63
Heads: 16
Cylinders: 81
May you have to change the system boot up sequence (BIOS setup) too.

Conversion: *.img to *.chd
chdman createhd -c none -i HDD40MB.img -o HDD40MB.chd

at486 driver/HDD40MB.chd


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Originally Posted By Anna Wu
Originally Posted By Anna Wu
I made a 40MB hard disk image (partitioned, formatted, bootable)
OS: FreeDOS
Added the Unreal and Copper demo.
Of course, this can be extended.

Available hard disk image formats: img/chd
+ FreeDOS boot floppy disk image with all necessary commands for the memory etc.



Public DL

If the PC driver have problems to load/start the floppy disk + hard disk image then use this DL
because these hard disk images contain all the necessary commands (FreeDOS).
Donīt forget to set the right hard disk type (BIOS setup)
Sectors: 63
Heads: 16
Cylinders: 81
May you have to change the system boot up sequence (BIOS setup) too.

Conversion: *.img to *.chd
chdman createhd -c none -i HDD40MB.img -o HDD40MB.chd

at486 driver/HDD40MB.chd




thanks Anna.just out of curiosity:does it have a better compatibility than Dosbox?especially for apps,more than games

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Of course, dude. It's an actual OS, not just some vaguely-hacked-together-yet-non-existent DOS kernel paired with a vaguely-hacked-together-yet-non-existent BIOS.

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More specifically, we're a system emulator, not a game emulator, so we actually support apps. There's a reason one of my early Mac screenshots was Word 5.1a (still Microsoft's greatest product ever ;-)

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Well, DOSBox does run some things we don't, such as most of the Copper demo (the only problem it seems to have with it are the hardware wobbling effects.)

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Originally Posted By Alegend45
Of course, dude. It's an actual OS, not just some vaguely-hacked-together-yet-non-existent DOS kernel paired with a vaguely-hacked-together-yet-non-existent BIOS.


that's the best description i've ever heard :p

the issues i'm having frequently with dosbox,is with games running off cd's and isos...like star trek,a final unity,where the game just hangs up at the same point.i tried different revisions and rl,but the issue remains.let's see how it goes here smile

Last edited by solstar82; 01/24/14 08:01 PM.
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Originally Posted By etabeta78
you are close to comparing apples with oranges...
in your PC, you don't insert the exe or the zipfile, you either insert a disk containing those files, or you have the exe on your HD.

so loading the zipfile as you suggest would be inaccurate


Well we let people play different revisions of arcade games without them having to pull roms and replace them with newer chips.

I do think we could do with a way of setting up a softlist that contained the original releases and when you select it we inject the contents into an existing chd (using a diff file) and then boot. But it's hard to do and we have bigger usability issues.


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Creating new images of things that never existed (such as a freedos booting hdd full of demos) is what makes me uncomfortable.

One demo per non-booting image, creating a disk image on the fly (pipe chdman output to mess?) from a folder/zip's contents, or mounting a zip/folder as a drive are all better alternatives with less maintenance upkeep.

x86 isn't the only platform that this would be useful for either. Pretty much every computer platform would benefit from some system to bring file data in.

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imgtool can create various filesystems on the fly, it just needs some love. No one has worked on it for years.

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DOSBox lets you mount a folder as a drive. Extremely handy and easy to use.

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