# MX\_AS3264

> [HTML Version](mx_as3264.htm)

_Added October 2021_

**xcall MIAMEX, MX\_AS3264, bits**

MX\_AS3264 (MIAMEX 200) returns the architecture of the A-Shell executable, 32 or 64 bit.

**Parameters**

_bits_  ([Num](num.htm.md))  \[out\]

32 or 64

Note that for prior A-Shell versions, calling this function will generate a pop-up invalid opcode error message. So if you are coding to be 32/64 bit aware, you should first check the A-Shell version, perhaps using the function Fn'MinAshVer() found in [fnminasver.bsi SOSLIB:\[907,10\]](https://bitbucket.org/microsabio/soslib/src/master/907010/fnminasver.bsi).  It's safe to assume that any A-Shell version below 1708 is 32 bit or less.

**History**

2021 October, A-Shell 6.5.1708:  Routine added to A-Shell.