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RISC-V from scratch 3: Writing a UART driver in assembly (1 / 3)
https://twilco.github.io/riscv-from-scratch/2019/07/08/riscv-from-scratch-3.html
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A post beginning implementation of a NS16550A UART driver for the QEMU virt machine, discussing the basics of UART functionality and doing additional linker script and devicetree layout exploration along the way.
