Section X86Context.
Context {initU: seq.seq nat}
{the_program: Asm.program}.
Notation the_ge := (@the_ge the_program).
Context {Hsafe : safe_genv the_ge}.
Instance X86Sem: Semantics := @X86Sem the_program Hsafe.

Lemma exec_store_obeys_cur_write:
forall ch m a rs rs0 d rs' m',
exec_store the_ge ch m a rs rs0 d = Next rs' m' ->
forall b ofs,
Memory.Mem.valid_block m b ->
~ Memory.Mem.perm m b ofs Memtype.Cur Memtype.Writable ->
ZMap.get ofs (PMap.get b (Memory.Mem.mem_contents m)) =
ZMap.get ofs (PMap.get b (Memory.Mem.mem_contents m')).