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sean-gugler / u4remasteredA2

Ultima IV Remastered for the Apple II
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Hard Disk image for Apple II Ultima IV Remastered #11

Open wyatt-wong opened 2 years ago

wyatt-wong commented 2 years ago

Is it possible to create a hard disk image for Apple II Ultima IV Remastered ?

sean-gugler commented 2 years ago

I have that in my "to do" list for sure :-) Thanks for the interest!

wyatt-wong commented 2 years ago

I have that in my "to do" list for sure :-) Thanks for the interest!

I just made one using the non-remastered version of Apple II Ultima IV.

Ultima IV.zip

sean-gugler commented 2 years ago

Well, the version you used to make that disk image is not the same as the 4am crack - that is the ProDOS conversion created by "san inc" (a.k.a. qkumba) available here: (ultima4 PRODOS (san inc pack).po)

Qkumba did a ton of work to make that possible. He had to replace all the code that asks the user to insert a disk, introduce code to change folders, and replace several direct track/sector reads with file seeks.

When I have time I plan to reach out and ask him if he may share source code of his edits with me. If I get no response, I will study the published ProDOS image and figure it out myself. Either way I am confident we can have a hard disk version of Ultima IV some day in the near future, and possibly even include it in Total Replay or some similar project. Have patience! :-)

plaidpants commented 11 months ago

I recall using a hard drive connect to an apple2 for a job I worked making a video rental store database program for the apple2. The hard drive appeared as just a normal DOS 3.3 disk but somewhat larger storage space and then you could access multiple disks using the volume specifier, so CATALOG S6 D1 V10 would access a different disk than CATALOG S6 D1 V11, it probably had a custom interface card and a modified version of DOS 3.3 to support this. Not sure if any of the emulators or apple2 tools would support a larger DOS 3.3 disk image but if they did you could make a modified DOS 3.3 to access the larger disk and possibly fit all 4 disks into one disk and it probably wouldn't require any modification to the code. Switching to ProDOS would definitely require modifications to the code.

TeaRex73 commented 2 months ago

@plaidpants as far as I know, patched DOS 3.3 has a volume size limit of about 400K unless you modify it extensively; not sure whether this would be enough for Ultima IV. Or you'd need to use several volumes. Also, it cannot easily coexist with ProDOS on the same medium. So I kind of doubt it would be a viable option.

plaidpants commented 2 months ago

Total file size of all the files on all 4 disks is 212769 bytes, seems like it would be doable. ultima4files.csv

plaidpants commented 2 months ago

This might also be a possibility

https://apple.fandom.com/wiki/DOS.MASTER https://www.applefritter.com/content/glen-bredons-dosmaster-prodos-drives

plaidpants commented 2 months ago

ultima4.po.txt Here is an OzDOS image with all the files on both partitions. Not sure how to launch u4 though from here.

wyatt-wong commented 2 months ago

It need someone to put it into a testSent from my iPhone 12 Pro MaxOn 28 May 2024, at 12:59 AM, James Surine @.***> wrote: This might also be a possibility https://apple.fandom.com/wiki/DOS.MASTER https://www.applefritter.com/content/glen-bredons-dosmaster-prodos-drives

—Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: @.***>