std_logic_arith

This is the library that defines some types and basic arithmetic operations for representing integers in standard ways. This is a Synopsys extention. The source code is in std_logic_arith.vhd and is freely redistributable.

• The unsigned type
• The signed type
• The arithmetic functions: +, -, *
• The comparison functions: <, <=, >, >=, =, /=
• The shift functions: shl, shr
• The conv_integer function
• The conv_unsigned function
• The conv_signed function
• The conv_std_logic_vector function

Return to The std_logic libraries.

Copyright Greg Baker, last modified February 2002.