mos_8502 :verified: on Nostr: A very good question. The answer is very simple: I know fuck all about Verilog. I ...
A very good question. The answer is very simple: I know fuck all about Verilog. I couldn’t make a 512K VERA at gunpoint.
Sentinel 65X started out as just an attempt to reverse engineer the X16 from the public documentation. It was going fine, but I realized at a certain point that I was bored to death by it - not because there’s anything so wrong with the X16, but because I was copying someone else’s homework when what I wanted to be doing was my own thing.
So I started over, keeping the ideas in the X16 I really liked, but engineering down to a cost, simplifying things where I could because I had no need to remain compatible. Using the W65C265S, which is halfway to being a system on chip already, gave me a big leg up on that. That, plus a cheap PLD and some ROM and RAM and the VERA, you got yourself a basic system design. Run the whole board on 3.3V and you don’t need level shifters for the VERA either.
Sentinel 65X started out as just an attempt to reverse engineer the X16 from the public documentation. It was going fine, but I realized at a certain point that I was bored to death by it - not because there’s anything so wrong with the X16, but because I was copying someone else’s homework when what I wanted to be doing was my own thing.
So I started over, keeping the ideas in the X16 I really liked, but engineering down to a cost, simplifying things where I could because I had no need to remain compatible. Using the W65C265S, which is halfway to being a system on chip already, gave me a big leg up on that. That, plus a cheap PLD and some ROM and RAM and the VERA, you got yourself a basic system design. Run the whole board on 3.3V and you don’t need level shifters for the VERA either.