This looks like a task for gorc: https://five-embeddev.com/riscv-bitmanip/draft/bext.html#generalized-or-combine-gorc-gorci https://five-embeddev.com/riscv-bitm

This looks like a task for gorc: https://five-embeddev.com/riscv-bitmanip/draft/bext.html#generalized-or-combine-gorc-gorci https://five-embeddev.com/riscv-bitmanip/draft/bext.html#gen... (granted, that’s only 32/64 bits, but still…)