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devel / comp.emulators.apple2 / Question concerning Apple II+ and Apple //e emulation

SubjectAuthor
* Question concerning Apple II+ and Apple //e emulationJens Gaulke
+- Question concerning Apple II+ and Apple //e emulationMichael AppleWin Debugger Dev
`- Question concerning Apple II+ and Apple //e emulationKent Dickey

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Question concerning Apple II+ and Apple //e emulation

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Subject: Question concerning Apple II+ and Apple //e emulation
From: jegali70@gmail.com (Jens Gaulke)
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 by: Jens Gaulke - Fri, 24 Mar 2023 22:15 UTC

Hi there,

I successfully emulated an apple II+ with my emulator. I threw the apple II+ Rom at it at it beeped and booted up correctly.

Now I wanted to test an apple //e Rom. It did not even boot and displayed nothing.

Do I have to take care of something if i want to do an //e emulation?

Re: Question concerning Apple II+ and Apple //e emulation

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Subject: Re: Question concerning Apple II+ and Apple //e emulation
From: michael.pohoreski@gmail.com (Michael AppleWin Debugger Dev)
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 by: Michael AppleWin Deb - Sat, 25 Mar 2023 13:06 UTC

On Friday, March 24, 2023 at 3:15:26 PM UTC-7, Jens Gaulke wrote:
> I successfully emulated an apple II+ with my emulator. I threw the apple II+ Rom at it at it beeped and booted up correctly.
Great!

> Now I wanted to test an apple //e Rom. It did not even boot and displayed nothing.
> Do I have to take care of something if i want to do an //e emulation?

Attach a trace of the PC and regs?

Michael

Re: Question concerning Apple II+ and Apple //e emulation

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From: kegs@provalid.com (Kent Dickey)
Newsgroups: comp.emulators.apple2
Subject: Re: Question concerning Apple II+ and Apple //e emulation
Date: Sat, 25 Mar 2023 13:28:38 -0000 (UTC)
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 by: Kent Dickey - Sat, 25 Mar 2023 13:28 UTC

In article <63412775-fd79-411e-ac14-03f2211b597fn@googlegroups.com>,
Jens Gaulke <jegali70@gmail.com> wrote:
>Hi there,
>
>I successfully emulated an apple II+ with my emulator. I threw the apple
>II+ Rom at it at it beeped and booted up correctly.
>
>Now I wanted to test an apple //e Rom. It did not even boot and
>displayed nothing.
>
>Do I have to take care of something if i want to do an //e emulation?

The Apple //e adds INTXROM to map ROM at $C800-CFFF, and it's used during
boot. There are lots of new softswitches on a //e, especially for 128K
of memory, plus double-hires, etc. And depending on the ROM, it may
require slot 3 80 column card ROM mappings as well, requiring some aux
memory. And and enhanced //e has a 65c02 with lots of new instruction,
which will be used in that ROM.

Kent

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