I've just published draft #7 of SRFI 160. It was submitted by John Cowan, author of the SRFI.

https://srfi.schemers.org/srfi-160/

Here are John's comments on the draft:

This new version of SRFI 160 involves a large increase in the size of the SRFI, but I decided it was necessary for the sake of implementation efficiency to include the u1vector-specific bitwise procedures in this SRFI rather than placing them into a later SRFI as I had originally intended. They provide analogues to the integer-based bitwise procedures of SRFI 151.

Note that I've removed srfi/x4/bitwise-core.scm from the repo, per John's request, since "it will now be necessary to use a full SRFI 151 implementation."

Here's the diff:

https://github.com/scheme-requests-for-implementation/srfi-160/compare/65a27a8e2f8064f0bc709b68610832a44ea5bf84...fdaad69c4a96bd6ec601dcc7a7ce64598f7c2f16

Regards,

SRFI Editor