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Old 26 October 2013, 21:41   #262
amilo3438
Amiga 500 User
 
Join Date: Jun 2013
Location: EU
Posts: 1,129
Quote:
Originally Posted by Toni Wilen View Post
Bootblock is run with sprite DMA off. This is probably bad bootblock rip that does not "emulate" bootblock environment fully.
Boot Intro by Digitech -> http://eab.abime.net/showpost.php?p=...&postcount=249

Well, here is another bootblock intro with almost same behaving (see on pic.):

Boot Intro (Intro) by Vortex 42 -> http://janeway.exotica.org.uk/release.php?id=23867

What now dont understand is - what does it mean "bootblock enviroment"?!

How I understand - if all sprite DMA channels are OFF before loading anything into memory and then the bootblock program is loaded into memory and running, the only possibility is that the running code enabled the sprite DMA channels after or maybe "something" else is - but what, still stay unknown?!

Otherwise, are the sprite DMA channels really set OFF, mean already on WB hand shown, before anything is loaded into memory?!
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