Require Import Coqlib.
Require Import Errors.
Require Import AST.
Require Import Integers.
Require Import Floats.
Require Import Op.
Require Import Asm.
Require Import Events.
Require Import Globalenvs.
Require Import Smallstep.
Require Import Values.
Require Import Memory.
Require Import Maps.
Require Import AuxLemma.
Require Import FlatMemory.
Require Import AuxStateDataType.
Require Import Constant.
Require Import GlobIdent.
Require Import RealParams.
Require Import AsmImplLemma.
Require Import GenSem.

Require Import liblayers.logic.PTreeModules.
Require Import liblayers.logic.LayerLogicImpl.
Require Import liblayers.compcertx.Stencil.
Require Import liblayers.compcertx.MakeProgram.
Require Import liblayers.compat.CompatLayers.
Require Import liblayers.compat.CompatGenSem.
Require Import compcert.cfrontend.Ctypes.
Require Import Conventions.

Require Import DSerialIntro.
Require Import AbstractDataType.
Require Import mCertiKOSType.

Local Open Scope string_scope.
Local Open Scope error_monad_scope.
Local Open Scope Z_scope.

Section SPECIFICATION.

  Context `{real_params: RealParams}.
  Context `{oracle_prop: MultiOracleProp}.

  Notation LDATA := RData.

  Notation LDATAOps := (cdata LDATA).

  Inductive serial_init_spec_low_step `{StencilOps} `{Mem.MemoryModelOps} `{UseMemWithData mem}:
    sextcall_sem (mem := mwd LDATAOps):=
  | serial_init_spec_low_intro s (WB: _ → Prop) m´0 labd labd´:
      serial_init_spec labd = Some labd´ →
      kernel_mode labd →
      high_level_invariant labd →
      serial_init_spec_low_step s WB nil (m´0, labd) Vundef (m´0, labd´).

  Inductive serial_getc_spec_low_step `{StencilOps} `{Mem.MemoryModelOps} `{UseMemWithData mem}:
    sextcall_sem (mem := mwd LDATAOps):=
  | serial_getc_spec_low_intro s (WB: _ → Prop) m´0 labd labd´ c:
      serial_getc_spec labd = Some (labd´, Int.unsigned c) →
      kernel_mode labd →
      high_level_invariant labd →
      serial_getc_spec_low_step s WB nil (m´0, labd) (Vint c) (m´0, labd´).

  Inductive serial_putc_spec_low_step `{StencilOps} `{Mem.MemoryModelOps} `{UseMemWithData mem}:
    sextcall_sem (mem := mwd LDATAOps):=
  | serial_putc_spec_low_intro s (WB: _ → Prop) m´0 labd labd´ c:
      serial_putc_spec (Int.unsigned c) labd = Some labd´ →
      kernel_mode labd →
      high_level_invariant labd →
      serial_putc_spec_low_step s WB (Vint c :: nil) (m´0, labd) Vundef (m´0, labd´).

  Section WITHMEM.

    Context `{Hstencil: Stencil}.
    Context `{Hmem: Mem.MemoryModelX}.
    Context `{Hmwd: UseMemWithData mem}.

    Definition serial_init_spec_low: compatsem LDATAOps :=
      csem serial_init_spec_low_step Tnil Tvoid.

    Definition serial_getc_spec_low: compatsem LDATAOps :=
      csem serial_getc_spec_low_step Tnil Tint32.

    Definition serial_putc_spec_low: compatsem LDATAOps :=
      csem serial_putc_spec_low_step (type_of_list_type (Tint32::nil)) Tvoid.

  End WITHMEM.

End SPECIFICATION.