This is pretty great. I especially like the poor man's ChipScope that shows up on the display itself. I'm sometimes surprised by lack of options for a small, c

This is pretty great. I especially like the poor man's ChipScope that shows up on the display itself. I'm sometimes surprised by lack of options for a small, cheap GPU that could be readily integrated into a design like this. There's seemingly a big gap between the classic VDP chips like the TMS9918 and its successors (which AFAIK have all been out of production for ~20 years) and modern GPUs that come in monster BGA packages, call for super-fast external RAM and dedicated power supply circuitry on 6+-layer boards, and can't be bought through mortal-friendly channels anyhow. FTDI has the FT800 series, and I'm sure there are still suppliers of S-PPU (the SNES graphics hardware) clones if you know who to talk to in China, but other than that it seems like the options are: 1) Roll your own in an FPGA, like this project 2) Get a fast, preferably multicore microcontroller with suitable I/O and program it to do rendering in software (maybe a Propeller, GA144, or some XMOS chip?) 3) Buy your GPU attached to an ARM core (i.e. Allwinner, Rockchip, Freescale i.MX, TI OMAP/Sitara, etc.) and program it to speak some GPU-oriented protocol (which probably adds a considerable amount of latency, since you'd realistically need to use the Linux drivers)