Caps.CapSet.subset: def of bend-osdev-caps@0.1.0.0
Import: import bend-osdev-caps@0.1.0.0/caps.bend as Caps
Lines 289-293 of bend-osdev-caps@0.1.0.0/caps.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-caps@0.1.0.0/caps.bend&start_line=289&end_line=293

import Base

# a within b: no bit of a outside b (on the low word, a & ~b == 0)
def CapSet.subset(a: CapSet(), b: CapSet()) -> Bool:
  match a b:
    case CapSetW{al, ah} CapSetW{bl, bh}:
      Bool.and(U32.is_eq(U32.and(al, U32.not(bl)), 0), CapBits.subset(9n, ah, bh))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.not
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-caps@0.1.0.0/caps.bend&name=CapBits.subset
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-caps@0.1.0.0/caps.bend&name=CapSet
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-caps@0.1.0.0/caps.bend&name=CapSetW