AmlField.fld.unit: def of bend-osdev-acpi@0.1.1.0
Import: import bend-osdev-acpi@0.1.1.0/aml_field.bend as AmlField
Lines 64-72 of bend-osdev-acpi@0.1.1.0/aml_field.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-acpi@0.1.1.0/aml_field.bend&start_line=64&end_line=72

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

def fld.unit(+f: AmlFieldDesc, +k: Nat) -> AmlUnit:
  match f:
    case AmlFieldDesc{sp, +base, +rlen, +off, +bits, +flags}:
      +w = AmlField.unit(flags)
      +ubits = Nat.mul(w, 8n)
      +start = Nat.mul(k, ubits)
      +lo = fld.max(off, start)
      +hi = fld.min(Nat.add(off, bits), Nat.add(start, ubits))
      AmlUnit{W.W64.add(base, W.W64.from_nat(Nat.mul(k, w))), Nat.sub(lo, start), Nat.sub(hi, lo), Nat.sub(lo, off), W.W64.is_le(W.W64.from_nat(Nat.mul(Nat.add(k, 1n), w)), rlen)}

Uses (12):
  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.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-acpi@0.1.1.0/aml_field.bend&name=AmlField.unit
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-acpi@0.1.1.0/aml_field.bend&name=AmlFieldDesc
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-acpi@0.1.1.0/aml_field.bend&name=AmlUnit
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-acpi@0.1.1.0/aml_field.bend&name=fld.max
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-acpi@0.1.1.0/aml_field.bend&name=fld.min
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-word64@0.1.1.0/word64.bend&name=W64.add
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-word64@0.1.1.0/word64.bend&name=W64.from_nat
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-word64@0.1.1.0/word64.bend&name=W64.is_le