RISC/ix? It was based on BSD 4.3. The efforts went into BSD 4.4 and that went into NetBSD and NetBSD 1.2 incorporated Acorn's ARM port. https://groups.google.

RISC/ix? It was based on BSD 4.3. The efforts went into BSD 4.4 and that went into NetBSD and NetBSD 1.2 incorporated Acorn's ARM port. https://groups.google.com/g/comp.sys.acorn/c/G19nI9eac-o/m/qJhAOaV4-u0J https://groups.google.com/g/comp.sys.acorn/c/G19nI9eac-o/m/q... https://www.netbsd.org/changes/changes-1.2.html#port-arm32 https://www.netbsd.org/changes/changes-1.2.html#port-arm32 I'd say that the bits that matter mostly survived and still do.