SDRAM as adress decoder

[grzeg2]

Hello.
I would like the system 6502 get the opportunity to change the map memory and I / O on the fly.
He wants to apply SRAM as adress decoder.
What do you think about this idea, and what problems to pay attention.
Similar to:
http://mikenaberezny.com/hardware/proje ... placement/

[BitWise]

grzeg2 wrote:

Hello.
I would like the system 6502 get the opportunity to change the map memory and I / O on the fly.
He wants to apply SRAM as adress decoder.
What do you think about this idea, and what problems to pay attention.
Similar to:
http://mikenaberezny.com/hardware/proje ... placement/

It's possible. An operating system for the 6809, OS-9 level 2, used to use this trick.

https://en.m.wikipedia.org/wiki/OS-9