Something similar in this paper, putting an FPGA between the processor and DRAM so you can arbitrarily remap bits of it: https://arxiv.org/abs/2109.14349 https:

Something similar in this paper, putting an FPGA between the processor and DRAM so you can arbitrarily remap bits of it: https://arxiv.org/abs/2109.14349 https://arxiv.org/abs/2109.14349