breiztiger wrote:sorry for the question but
No need to apologize at all. Good questions
why only scp format and not ctraw from kryoflux ?
ipf support is it possible ?
Well, SCP is, by far, the simplest of the low level formats and the easiest to process by FPGA logic.
RAW Kryoflux images, being split in multiple files and with the "out of bounds" index pulse data are really a PITA for a FPGA core. They would need to be pre processed by software. Of course, we have a very powerful CPU at the Arm side, so this could be implemented in the future. It might be easier perhaps to just implement a converter that you could run on a PC though.
CTR images could be a nice option because they are rather compact, but the CTR format is, AFAIK, not documented. I am guessing it might require software pre processing as well.
IPF support would require to port the IPF library to the ARM (may be there is a port already), and again it would need additional pre processor before it reaches the FPGA core. One problem is that the IPF library API doesn't seem to be fully documented. The API documentation seems to correspond to older versions of the library. I didn't look at that for quite some time, so it might have been changed. But yes, in theory, and thanks again to the powerful ARM CPU that the MiSTer has, it should be possible.
Edit: I do am performing some software pre processing for SCP images as well. But that is very minimal and lightweight.