Is the core itself open source?

adrian_b · on Nov 4, 2023

I doubt that, but AMD said that it is free to use in any AMD (Xilinx) FPGA.

Had it required to pay a fee, there would have been no interest in this announce, because there are free alternatives.

It can be assumed that this core is well optimized to use efficiently the resources of a Xilinx FPGA, which is likely to be its advantage over alternatives.

londons_explore · on Nov 4, 2023

While it may not have an open source license, the source code for previous microblaze cores is part of the development kit, lightly obfusticated (but not even removing source code comments!)