Mickey's Space Adventure tandy fix \ VOGONS

Mickey's Space Adventure tandy fix

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First post, by wd

Posted on 2007-02-02, 20:53

wd Offline

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Joined: 2003-12-03, 21:23

Small workaround (10 bytes). Do NOT use this fix for any other game.

In order to use it, just start it before running Mickey's Space Adventure.
You need to re-run it when you restart dosbox, but you don't have to
re-run it in one session (it's no tsr though).

Reply 1 of 2, by dvwjr

Posted on 2007-02-03, 01:11

dvwjr Offline

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Joined: 2002-11-23, 23:32

Why is the 624kb so important to this game?

I have forgotten, is AX always 0x0000 on load?

Just curious 🤣

dvwjr

Reply 2 of 2, by wd

Posted on 2007-02-03, 11:03

wd Offline

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Posts: 10813
Joined: 2003-12-03, 21:23

Because they use it to check where the video area is, which is at the
top of the 640k.
ah/al on load are some fcb validity identifier, don't know if later dos versions
would set anything !=0 at all.

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