5.8.24. DCFDU directive

The DCFDU directive allocates eight bytes of memory for arbitrarily aligned double precision floating-point numbers, and defines the initial runtime contents of the memory.

Syntax

The syntax of DCFDU is:

{label} DCFDU fp-constant{,fp-constant}...

where:

fp-constant

is a double precision floating-point value in one of the following forms:


{-}digits E{-}digits
{-}{digits}.digits{E{-}digits}

E may also be written in lowercase.

Usage

DCFDU defines floating-point values with arbitrary alignment.

The range for double precision numbers is:

  • Maximum 1.79769313486231571e+308

  • Minimum 2.22507385850720138e–308

Examples

		DCFDU 		1E308,-4E-100 
		DCFDU 		100,-.1,3.1E26
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