IAS supports the use of arithmetic expressions for constants and addresses, using standard arithmetic notation. Arithmetic expressions can include symbols, numeric constants, and operators.
IAS supports expressions that access linker tables during run-time, through the use of several link-relocation operators. See the Intel® Itanium(TM) Architecture Assembly Language Reference Guide for more information on link-relocation operators.
Input file constants are internally represented as signed 128-bit numbers. IAS makes all integer calculations with 128-bit precision, and floating point calculations (real numbers) in extended precision (long double).