17 is all I need, palette registers and control register. I was just saying the address space is 32 long, even though the shifter won't use them all.keli wrote: ↑Wed Nov 01, 2017 11:43 am Without checking, I'm afraid that the GLUE will only activate /CS for the first 17 of the 32 available addresses. If you try accessing the registers at 0xFF8262-0xFF826E frome code on an STF, do you get a bus error or will the /CS pin on the Shifter be pulled low?
Of course different on the TT, would need its 256 palette registers there, and need a bunch of address decoding etc..