IBM Extension

COMPUTATIONAL-1 or COMP-1 Phrase

The COMPUTATIONAL-1 or COMP-1 phrase is specified for internal floating-point items (single precision). COMP-1 items are 4 bytes long. The sign is contained in the first bit of the leftmost byte and the exponent is contained in the next 8 bits. The last 23 bits contain the mantissa. For conditional expressions, the class condition cannot be used for COMP-1 or COMPUTATIONAL-1 internal floating-point data items.

End of IBM Extension