Because I use a notebook (TP560E), I used its PS/2 port for power source.
(You can use anything you want)
To simplify, I used a direct connection to the parallel port.
Circuit constitution : a 74HC4020 for address counter and reading of Low and High Byte into a buffer, all of this controled by a decoder.
Very easy!
/STROB,/AUTOFEED,/INIT,/SELECTIN are connected to the decoder for Counter reset, Counter increment, Low or High byte select.


See the schematic here and the components list here

Forget the book, it is not needed!

About the emulator, you won't find it here, don't ask by mail or throught the forums, I won't answer.

I tried several cartridges dump models, like those which load a lot the coprocessor.

About the SRAM backup memory, I was unable to dump it.
If you dump more than needed, you should be able to dump it. However, it takes time to figure how.
(The address counter only go up, so it seems impossible)

????, the operation was verified with Shining in the Darkness and Landstalker.(These two works, it must be enought)

After dumping, think to power off your PC because removing the cartridge. Risk of damage.