On Mon, 3 Mar 2003, Kroko wrote:
> > peek ($1000);
> > poke ($01FE, $D0);
> > poke ($01FF, $D0);
>
> I have a few questions :-)
>
> 1. Do you test on the real hardware ?
This is psuedocode for the exact code I use in my ROM dumper.
It works with my Decathlon cartridge. I do not own Robot Tank.
Here's the real exact code, in an obscure language:
function _FE_switch 0
{
peek_a1 := x10;
peek_a2 := x00;
_peek();
poke_a1 := x01;
poke_a2 := xFE;
poke_a3 := FE_bank;
_poke();
poke_a1 := x01;
poke_a2 := xFF;
poke_a3 := FE_bank;
_poke();
}
> 2. why do we need the peek($1000); ?
I was simulating an RTS, and was guessing at the state machine
inside the cart. It may not really be necessary, I do not know
as I have not tried without it.
> 3. So in this case, this is simulating and RTS, right ?
> Will this work, too ?
>
> peek ($1000);
> poke ($01FE, $00);
> poke ($01FF, $D0);
Probably. I was lazy and couldn't remember my hi from my low,
so I just used the same byte twice in my code.
> 4. Can you simulate a JSR for me please :-)
> (Do you have any idea how to do this ?)
Hehe. I use RTS because I figured it out first and I only needed
one of them to dump the carts. I do not actually have code for that,
but I suspect stuff I posted previously to the stella list should be close.
(see http://www.biglist.com/lists/stella/archives/200302/msg00245.html)
poke($1000, $20);
poke($1001, $D0); // or $F0
poke($01FF, $FF); // shouldn't matter what value
poke($01FE, $FF); // shouldn't matter what value
poke($1002, $D0); // or $F0
--
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