Why is AGA so hard to implement?

[Chucky]

I might sound rude: but.. if you ask.  do it yourself and you will notice that it is not that easy.

first of all.. it is an extension to ECS..  still you FIRST need to implement OCS and ECS.  and stuff can be harder than you think.

[Chucky]

It is way more easy to implement a own RTG 24bit system.  as you do not need to think about chipsetregisters and strange beaviours etc that you must implement to have software behave right.

[Chucky]

but then as already mentioned: AGA is already implemented..  like in the FPGA Replay etc..    

but I do not understand those who wants to ADD stuff to AGA.. why.  there is simply no reason whatsoever to do that.

[Chucky]

Because of....

https://en.wikipedia.org/wiki/Commodore_AA%2B_Chipset

that exactly ZERO software will use anyway..  so.. no reason

[Chucky]

I believe it's possible to write software.

well..  yes.  but then we are in the situation that most sources is gone.  so completly NEW software must be made..  and why do it to a small platform. better support RTG and lots of different hardware is supported directlty..  so pointless thing to do simply...