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Why is this different/better than emulating the PIC micro controller instruction set (or something like that), except that no hardware actually supports it? As
by theteapot 4y ago
Why is this different/better than emulating the PIC micro controller instruction set (or something like that), except that no hardware actually supports it? As I recall they had about 32 instructions. Not bashing, just asking.
- EarlKing 4y agoThis. I mean, the C18 microcontroller has 32 instructions, too, but nobody's using that either. So what's the advantage of this thing?
- entaloneralie 4y agoI gave a talk about the various options I considered in the beginning, it's linked up on top of this thread by someone. In short, I didn't really care to have to design a CPU, I just wanted to drive a framebuffer. The PIC was a pretty poor target for what I had in mind, but I did nearly settle for the J1 which is a gorgeous design, the 4kb program limit was pretty tight, and it ended up being quite slow when emulated on the NDS. I wrote a couple of notes that might interest you: https://wiki.xxiivv.com/site/devlog.html https://wiki.xxiivv.com/site/devlog.html
- theteapot 4y agoAh OK, what your trying to do makes more sense now. Thanks.