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MiSTer PCE CD Rondo of Blood booting for the first time! 15 4 19

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Published on Apr 15, 2019

Today saw the "first light" of a game starting to boot on the PCE CD logic.

This has been a joint effort by "dentnz" and I to add ISO loading support to the MiSTer PC Engine / TurboGrafx 16 core.

"brNX" also helped with the initial Verilog code and suggestions for how best to implement the logic.

It's been a long road to get to this point. Many weeks of long nights, figuring out how to implement the logic, based on references like the MAME source code.

I also recently added CUE file parsing to the HPS (ARM) code, which was a bit painful, as I've never written a text file parser in C before, but it's mostly working now.

CD Audio support is in place, but the actual commands aren't finished yet.

Spoofing the ADPCM registers were the last step to getting it to boot.

I'll be writing the logic for the ADPCM chip itself soon, as it's almost the same as the MSM6295 used on CPS1.

So, still some work to do yet, but this is a great milestone. ;)

(please note: the capture is done via the MiSTer HDMI output, but going through an external scaler box then via Component to an Avermedia capture card, so the quality here is only 720p, and definitely NOT the best representation of the HDMI output on MiSTer.)

  • Game

    • Castlevania: Rondo of Blood
    • 1993
  • Category

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