On: Build a 6502 Computer

[LIV2]

The problem is that the 6502 can only address 64K which includes ROM and IO Space so for any acceptable resolution you need tricks like bank switching and/or a seperate memory bus.

Even on the NES the PPU RAM is on a separate bus

[jmccorm → LIV2]

What I took exception with was:

1. Not enough video memory to contain a full Mode 7 image on the VERA co-processor. 2. All co-processor access (including video memory) has to go through eight registers starting at $9F20.

No problem here with bank switching. I think that's great!