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Date: Fri, 10 Jun 94 14:01:29 MET DST
From: Arthur <aavande@cs.vu.nl>
To: Blitz_Basic_II <blitz-list@helsinki.fi>
Subject: copper tricks
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Hi ,
Can someone please explain the following code to me ?
co$=mki$(#bpl1mod)+mki$(-127)
co$+mki$(#bpl2mod)+mki$(-127)
OwnCopList(co$,100) <= I cann't remember the instruction name
exactly,but it's the instruction that
you can insert your own copperlist...
I saw this in BUM6 and they achieved a mirror effect with it.
I'm just wondering what #bpl1mod & #bpl2mod stands for (I think some
hardware registers , but how to they work ???)
Can you achieve other effects with these two registers (i.e vertical
mirror tricks or something ?)
Please explain these copper/blitter hardware tricks to me !