qemu-system-*.exe -cpu ? (or -M ?) exit silently

For example, 'qemu-system-arm -cpu ?' on Linux host give me available cpu list:

Available CPUs:
  arm1026
  arm1136
  arm1136-r2
  ...

But on Windows host, I got nothing:

C:\opt\qemu-1.5.0-rc0-win64>qemu-system-arm -cpu ?

C:\opt\qemu-1.5.0-rc0-win64>echo %ERRORLEVEL%
0