PROOF.jmp_ranges: def of bend-osdev-bpf@0.1.0.0
Import: import bend-osdev-bpf@0.1.0.0/PROOF.bend as PROOF
Lines 105-107 of bend-osdev-bpf@0.1.0.0/PROOF.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-bpf@0.1.0.0/PROOF.bend&start_line=105&end_line=107

import Base
import bend-osdev-bpf@0.1.0.0/insn.bend as I
import bend-osdev-bpf@0.1.0.0/validate.bend as V

# the two range checks inside bpf_check.jmp
def jmp_ranges(+jt: U32, +jf: U32, +pc: Nat, +r: Nat, +h: {V.bpf_check.jmp(jt, jf, pc, r) == Done{Unit{}} : Result<&2, &2, I.BpfError, Unit>}) -> {V.bpf_both(V.bpf_chk(Nat.is_lt(U32.to_nat(jt), r), I.BpfErrJump{pc}), V.bpf_chk(Nat.is_lt(U32.to_nat(jf), r), I.BpfErrJump{pc})) == Done{Unit{}} : Result<&2, &2, I.BpfError, Unit>}:
  both_r(V.bpf_chk(U32.is_lt(jf, 256), I.BpfErrJumpField{pc}), V.bpf_both(V.bpf_chk(Nat.is_lt(U32.to_nat(jt), r), I.BpfErrJump{pc}), V.bpf_chk(Nat.is_lt(U32.to_nat(jf), r), I.BpfErrJump{pc})), both_r(V.bpf_chk(U32.is_lt(jt, 256), I.BpfErrJumpField{pc}), V.bpf_both(V.bpf_chk(U32.is_lt(jf, 256), I.BpfErrJumpField{pc}), V.bpf_both(V.bpf_chk(Nat.is_lt(U32.to_nat(jt), r), I.BpfErrJump{pc}), V.bpf_chk(Nat.is_lt(U32.to_nat(jf), r), I.BpfErrJump{pc}))), h))

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.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bpf@0.1.0.0/PROOF.bend&name=both_r
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bpf@0.1.0.0/insn.bend&name=BpfError
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bpf@0.1.0.0/validate.bend&name=bpf_both
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bpf@0.1.0.0/validate.bend&name=bpf_check.jmp
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-bpf@0.1.0.0/validate.bend&name=bpf_chk