message: Allow more registers to be used.
diff: @@ -24,6 +24,11 @@ lazy_static! {
  let offset = assembler.offset();
  dynasm!(
  assembler
  + ; push rbx
  + ; push r12
  + ; push r13
  + ; push r14
  + ; push r15
  ; lea rax, [>after_call]
  ; push rax
  ; push rbp
  @@ -43,6 +48,11 @@ lazy_static! {
  ; _loop_end:
  ; jmp rdx
  ; after_call:
  + ; pop r15
  + ; pop r14
  + ; pop r13
  + ; pop r12
  + ; pop rbx
  ; ret
  );
  let buf = assembler.finalize().unwrap();
  @@ -85,6 +95,11 @@ impl Register {
  5 => R9,
  6 => R10,
  7 => R11,
  + 8 => RBX,
  + 9 => R12,
  + 10 => R13,
  + 11 => R14,
  + 12 => R15,
  _ => unreachable!(),
  }
  }
  