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- Subject: Re: [hatari-devel] _FRB cookie in Falcon emulation
- From: Uwe Seimet <Uwe.Seimet@xxxxxxxxx>
- Date: Fri, 1 Aug 2025 22:04:16 +0200
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Hi,
> I don't see this with Hatari + tos 4.04 ;when starting with 2MB RAM and
> no TT/Fast RAM, I get these values once I go to debug mode when reaching
> the desktop:
>
> $5A4 : 0
> $5A8 : 1357BD13
>
> so, no tt ram was added bu default in falcon mode ; I think it's in your
> settings
Yes, my settings configure Alternate-RAM, and this is reflected in $5a4,
which is not 0 in this case.
I was alerted because Hatari started to deal with the _FRB cookie when there
is Alternate-RAM. I was wondering whether an unpatched TOS 4.04 sets the
value in $5a4 when Alternate-RAM is configured in Hatari, or if Hatari does
it instead.
My conclusion is that TOS 4.04 sets the value, but not Hatari. Please
correct me if this conclusion is wrong.
Best regards
Uwe