Re: DMA'ing in Commodore 64 for developing purposes.

From: Bill Degnan <billdegnan_at_gmail.com>
Date: Wed, 15 Jun 2022 07:52:59 -0400
Message-ID: <CABGJBue=9sV0eD_boWyHe-UTh+2CYMLVkk3=8S4WwmyVF563Jg_at_mail.gmail.com>
Icepic I think stands for "in-circuit emulator picture", which works along
those lines. Al

 I have used this technique on 8080 and z80 machines with am in-circuit
emulator made for these cpus, a similar.version for 6502 would be a great
tool.too.

I.also.use the technique of grabbing a block of memory and writing the
block to a diskette.  This is how I convert binary cassettes to disk so.can
next image the disk using zoom floppy etc.

It has been.a.few years...

Bill

On Wed, Jun 15, 2022, 7:27 AM tokafondo <tokafondo_at_tokafondo.name> wrote:

> Can't tell if this has been talked about previously.
>
> I was thinking if a system could be created to freeze a Commodore 64 and
> DMA'ing code/data at desired memory locations and then unfreeze it, so it
> could be tested in the real machine in real time.
>
> People tend to program by using emulators and once it's working there,
> burn to an easyflash or save to a whatever disk or tape file and then run
> in the machine, many times finding mostly with VIC-II dark magic that what
> worked beautifully in the emulator doesn't do it in the real machine.
>
> Can it be done?
>
>
>
Received on 2022-06-15 14:02:44

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