Using as: s390 Floating Point

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#### 9.37.5 Floating Point

The assembler recognizes both the IEEE floating-point instruction and the hexadecimal floating-point instructions. The floating-point constructors ‘`.float`’, ‘`.single`’, and ‘`.double`’ always emit the IEEE format. To assemble hexadecimal floating-point constants the ‘`.long`’ and ‘`.quad`’ directives must be used.