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by whitten 2853 days ago
To quote the author (F4HDK) who designed everything from hardware to software, compiler,loader,assembler etc: It is a design that came from my imagination, not from existing CPUs. It is a RISC design, without microcode, and instruction are very low level. Therefore, the executable code is much bigger than for CISC CPUs. But the CPU core itself is very simple: especially instruction decoding is very very simple. It is also slower than CISC because the CPU takes lots of time just for reading instructions from the bus (and of course there is no execution pipeline)... But it works!