# F2HOST

> [HTML Version](f2hostsbr.htm)

**xcall F2HOST, alphaflt, hostflt**

F2HOST converts a six byte BASIC-format floating point value to the equivalent IEEE four byte (single precision) or eight byte (double precision) floating point format. Although this is done internally by A-Shell all the time, since it uses the IEEE format for internal calculations, the subroutine may be handy when exporting data to outside sources.   

**Parameters**

_alphaflt_  (F,6)

will return the converted value.

_hostflt_

should be mapped as X,4 or X,8 depending on the size of the IEEE floating point value to be converted.

**Comments**

See [HOST2F](host2f_sbr.md) for the reverse conversion. Note that when exporting data, it is usually more practical to output in string CSV format; see [WRITECD](writecd.md) for an easy way to do this.