* ``x86_stdcallcc``: code 64
* ``x86_fastcallcc``: code 65
* ``arm_apcscc``: code 66
* ``arm_aapcscc``: code 67
* ``arm_aapcs_vfpcc``: code 68
* ``x86_stdcallcc``: code 64
* ``x86_fastcallcc``: code 65
* ``arm_apcscc``: code 66
* ``arm_aapcscc``: code 67
* ``arm_aapcs_vfpcc``: code 68