A complete 6502 CPU - in javascript!
In the summer of 2009, working from a single 6502, we exposed the silicon die, photographed its surface at high resolution and also photographed its substrate. Using these two highly detailed aligned photographs, we created vector polygon models of each of the chip's physical components - about 20,000 of them in total for the 6502. These components form circuits in a few simple ways according to how they contact each other, so by intersecting our polygons, we were able to create a complete digital model and transistor-level simulation of the chip.
Holy reverse engineering, Batman.
If only I knew what to do with it.
Well, maybe i missed something in my vlsi class but those diffusion wells are quite irregularly shaped. I remember cadence and the .15u tech I designed for was quite a lot more regular.
You can see this operation right now in your browser (except for Internet Explorer) with our interactive JavaScript simulation. We suggest a fast computer and lots of memory for this version.
Look at all that parallelisation!
I found the X and Y registers, and a long sequence of lines named after the mnemonics 