Re: A89: Re: FYI: added info to J89hw.txt
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Re: A89: Re: FYI: added info to J89hw.txt
Jeremie Knusel wrote:
> nop ; Execute three NOPs to make SURE it's actually
> nop ; three read accesses from within $21xxxx
> nop
> move.w #$2700,sr ; "make sure nobody's trying to do stupid things"
> move.w d0,(a0) ; Do the $1Cxxxx write (any value in D0 will do)
>
> where are the three reads from 20xxxx or 21xxxx that should be done just
> before
> move.w d0,(a0) ?
The three nops. The code is run from somewhere in 20xxxx to 21xxxx and the reads
are the instruction fetches.
//Olle
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