Supported Expressions - 2025.2 English - UG901

Vivado Design Suite User Guide: Synthesis (UG901)
Document ID
UG901
Release Date
2025-12-05
Version
2025.2 English
Table 1. Supported Expressions
Expression Symbol Status
Concatenation {} Supported
Replication {{}} Supported
Arithmetic +, -, *,** Supported
Division / Supported
Modulus % Supported
Addition + Supported
Subtraction - Supported
Multiplication * Supported
Power **

Supported:

  • Both operands are constants, with the second operand being non-negative.
  • If the first operand is a 2, the second operand can be a variable.
  • Vivado synthesis does not support the real data type. Any combination of operands that results in a real type causes an error.
  • The values X (unknown) and Z (high impedance) are not allowed.
Relational >, <, >=, <= Supported
Logical Negation ! Supported
Logical AND && Supported
Logical OR || Supported
Logical Equality == Supported
Logical Inequality != Supported
Case Equality === Supported
Case Inequality !== Supported
Bitwise Negation ~ Supported
Bitwise AND & Supported
Bitwise Inclusive OR | Supported
Bitwise Exclusive OR ^ Supported
Bitwise Equivalence ~^, ^~ Supported
Reduction AND & Supported
Reduction NAND ~& Supported
Reduction OR | Supported
Reduction NOR ~| Supported
Reduction XOR ^ Supported
Reduction XNOR ~^, ^~ Supported
Left Shift << Supported
Right Shift Signed >>> Supported
Left Shift Signed <<< Supported
Right Shift >> Supported
Conditional ?: Supported
Event OR or, ',' Supported