Acpi.mem.near: def of bend-osdev-acpi@0.1.1.0
Import: import bend-osdev-acpi@0.1.1.0/acpi.bend as Acpi
Lines 40-48 of bend-osdev-acpi@0.1.1.0/acpi.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-acpi@0.1.1.0/acpi.bend&start_line=40&end_line=48

import Base
import bend-osdev-word64@0.1.1.0/word64.bend as W
import bend-osdev-bytes@0.1.1.0/bytes.bend as B

# the offset into the region is computed only once it is known to be small
# (a Nat holds at most 2^48 - 1 at run time)
def mem.near(near: Bool, +off: W.W64, +n: Nat, +o: B.Octets) -> Maybe<&2, B.Octets>:
  match near:
    case False{}:
      None{}
    case True{}:
      +k = U32.to_nat(W.W64.lo(off))
      mem.slice(Nat.is_le(Nat.add(k, n), B.Octets.len(o)), k, n, o)

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-acpi@0.1.1.0/acpi.bend&name=mem.slice
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bytes@0.1.1.0/bytes.bend&name=Octets.len
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-word64@0.1.1.0/word64.bend&name=W64
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-word64@0.1.1.0/word64.bend&name=W64.lo