Friday, February 11, 2011

It's alive!

The first working version of my current project "C64 on an FPGA"!

Running on an Altera Cyclone II FPGA Dev-Board.

It's still in a very early stage. The CPU is pretty final, the other chips (VIC, CIA & Co.) only do what they need to do to get a very basic system running (e.g. the VIC does badlines for proper charmode, but no sprites or IRQs). SID is not implemented at all for the moment.

Video-Out is limited to black and white, as I'm still waiting for the ordered Video-DAC. The PAL-Signal is generated directly from the FPGA, using a minimal R2R-Net. The VIC would already be able to output 16 colors.

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