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The .float directive tells the assembler to initialize 4-byte area.

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The .float directive also tells the assembler to initialize a memory area in 4-byte units with the absolute-expression specified in the operand field.

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The value of the absolute expression is secured as a single-precision floating-point number. Consequently, the value of the expression must be between -3.40282347e+38 and 3.40282347e+38. In other cases, it is assumed as infinity with the same sign.

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If the relocation attribute of the section is "BSS", then an error is output because the .float directive cannot be described.

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Two or more absolute-expression may be specified within a statement line of the .float directive.