Say I wrote my own CPU (which I did), which of those tiny C compilers would be e... | Hacker News

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pepijndevos on Oct 10, 2019 | parent | context | favorite | on: Small C Compilers

Say I wrote my own CPU (which I did), which of those tiny C compilers would be easiest to retarget?

My CPU is very small, (~300 LUT4 on an FPGA using Yosys), but has a very minimal ISA. It's mostly an accumulator machine with a stack pointer.

nils-m-holm on Oct 10, 2019 | [–]

SubC is very easy to retarget, especially the book version. It is not a full C compiler, though.

http://t3x.org/subc/

Rietty on Oct 10, 2019 | [–]

I'm interested in what you mean by "wrote my own CPU". Could you elaborate please?

pepijndevos on Oct 10, 2019 | [–]

https://github.com/pepijndevos/seqpu/blob/master/cpu.vhd

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