Below are links to the NES fpga:
1) https://github.com/brianbennett/fpga_nes
Using Spartan 6 : Nexys 3
There is a glitch in one game that was discussed here:
http://forum.gadgetfactory.net/index.ph ... pistrello/
2) https://sites.google.com/site/ece31289u ... oratorio-3
Using Cyclone IV : DE0-Nano
Uses the same source codes in (1) but no glitch. Works nicely.
3) https://github.com/strigeus/fpganes (Luddes NES Blog)
Using Spartan 6 : Nexys 3 or 4?
Requires USB joystick on PC. Customized software to load games and joystick positions to FPGA.
I could not get either to work on Nexys 3.
Appreciate if anyone can help investigate the glitch in (1) ?
FPGA NES
Re: FPGA NES
Is this the glitch in question?
Quote:
One thing I did notice is that some of the sprites have a vertical line of missing pixels but over all it looks pretty good.
Re: FPGA NES
Yes, that's the glitch. No glitch on the De0_Nano version.