Technical data

GUI_expression_format
ModelSim EE/SE Command Reference Command Syntax and Conventions CR-255
Operators
Note: Arithmetic operators use the std_logic_arith package.
Operator Description Operator Description
&& boolean and sll/SLL shift left logical
|| boolean or sla/SLA shift left arithmetic
! boolean not srl/SRL shift right logical
== equal sra/SRA shift right arithmetic
!= not equal ror/ROR rotate right
=== exact equal rol/ROL rotate left
!== exact not equal + arithmetic add
< less than - arithmetic subtract
<= less than or equal * arithmetic multiply
> greater than / arithmetic divide
>= greater than or equal mod/MOD arithmetic modulus
not/NOT or ~ unary bitwise inversion rem/REM arithmetic remainder
and/AND bitwise and |<vector_expr> OR reduction
nand/NAND bitwise nand ^<vector_expr> XOR reduction
or/OR bitwise or
nor/NOR bitwise nor
xor/XOR bitwise xor
xnor/XNOR bitwise xnor