is it possible to rebuild old c64 hardware enhancements?

[Brian Lanning]

On Thu, Mar 5, 2009 at 5:13 PM, Joachim Thiemann
<joachim.thiemann at gmail.com> wrote:
> On Thu, Mar 5, 2009 at 17:03, Gene Buckle <geneb at deltasoft.com> wrote:
> Given this, can one hook a SD/SDHC card to the Amiga parallel port,
> and then write a "sdhc.device" that presents a block device that can
> be put into the Mountlist and be accessed by dos.library or one of the
> ms-dos capable libraries (messydos?) and thus present a non-bootable
> mass storage device for the amiga?  So, you boot with a custom
> workbench disk, that loads the driver, mounts the SDHC card and then
> startup-sequence hands control over
> to a script on the SDHC card.  ISTR this was commonly done for romless
> drive addons on the 500 - and I had such a setup for my 1000, where my
> bootup workbech disk loaded the janus drivers and then handed control
> over to a MFM hard disk in the Sidecar.

That's starting to sound like a backwards version of this:

http://cgi.ebay.com/Amiga-500-1000-2000-3000-Floppy-Simulator-w-MPDOS-Pro_W0QQitemZ320345362723QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item320345362723&_trksid=p3286.c0.m14&_trkparms=72%3A1234|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50

I've also seen a gadget for the c64 (or was it an apple 2e?) that
connects the serial port to a PC.  You run some software on the PC
which then looks like a hard drive to the old computer.  Like a file
server over a serial connection.

brian