Expressions
Indexing
coefs[3]
coefs[3:0]
coefs[{5,3,1}]
Signals
V(out)
I(in,gnd)
V(in[1])
Operators
Arithmetic Operators
Symbol 
Usage 
Description 



Sum 


Subtract 


Negate 


Multiply 


Divide 


Modulus (remainder) of 



Bitwise Operators
Symbol 
Usage 
Description 



Invert each bit of 


Logical ‘and’ of each bit of 


Logical ‘nand’ of each bit of 


Logical ‘or’ of each bit of 


Logical ‘nor’ of each bit of 


Logical ‘xor’ of each bit of 


Logical ‘xnor’ of each bit of 


Same as 
Reduction Operators
Symbol 
Usage 
Description 



Logical ‘and’ all bits in 


Logical ‘nand’ all bits in 


Logical ‘or’ all bits in 


Logical ‘nor’ all bits in 


Logical ‘xor’ all bits in 


Logical ‘xnor’ all bits in 


Same as 
Logical Operators
Symbol 
Usage 
Description 



Is 


Are both 


Are either 
Equality Operators
Symbol 
Usage 
Description 



Is 


Is 
Identity Operators
Symbol 
Usage 
Description 



Is 


Is 
Relational Operators
Symbol 
Usage 
Description 



Is 


Is 


Is 


Is 
Shift Operators
Symbol 
Usage 
Description 



Shift 


Shift 


Shift 


Shift 
Miscellaneous Operators
Symbol 
Usage 
Description 



Evaluated to 


Concatenates sized bit vectors 


Replicate 
Size of Integer Results
Form 
Operators 
Size 

i op j 

max(L(i), L(j)) 
op i 

L(i) 
i op j 

1 
op i 

1 
i op j 

L(i) 
i ? j : k 
max(L(j), L(k) 

{i, …, j} 
L(i) + … + L(j) 

{i {j, …, k}} 
i 
Functions
Function 
Description 


Natural logarithm (base e) 

Common logarithm (base 10) 

Exponential 

Square root: √ 

Minimum 

Maximum 

Absolute value 

Floor (largest integer less than or equal to 

Ceiling (smallest integer greater than or equal to 

Power: 

Sine (argument is in radians) 

Cosine (argument is in radians) 

Tangent (argument is in radians) 

Arc sine (result is in radians) 

Arc cosine (result is in radians) 

Arc tangent (result is in radians) 

Angle from the origin to the point 

Distance from the origin to the point 

Hyperbolic sine (argument is in radians) 

Hyperbolic cosine (argument is in radians) 

Hyperbolic tangent (argument is in radians) 

Hyperbolic arc sine (result is in radians) 

Hyperbolic arc cosine (result is in radians) 

Hyperbolic arc tangent (result is in radians) 

The current time in seconds 

The current time in the current Verilog time units. 

The ambient temperature 

The thermal voltage (V_{T} = kT/q) at the ambient temperature 
Random Functions
Function 
Description 


Uniformly distributed random 32bit integer 

Uniformly distributed random integer 

Uniformly distributed random real value 

Normally distributed random integer 

Normally distributed random real value 

Exponentially distributed random integer 

Exponentially distributed random real value 

Poisson distributed random integer 

Poisson distributed random real value 

Chi square distributed random integer 

Chi square distributed random real value 

Student T distributed random integer 

Student T distributed random real value 

Erlang distributed random integer 

Erlang distributed random real value 
Analog Operators
Operator 
Description 


Time derivative 

Time integral 

Circular integrator 

Transition 

Slew 

Delay 

Laplace, zeropole form 

Laplace, numeratordenominator form 

Laplace, zerodenominator form 

Laplace, numeratorpole form 

Z transform, zeropole form 

Z transform, numeratordenominator form 

Z transform, zerodenominator form 

Z transform, numeratorpole form 

Last crossing 

Limited exponential 
SmallSignal Stimulus Functions
Function 
Description 


AC stimulus 

White noise 

Flicker noise 

Noise table 
File Operations
Function 
Description 


File open 

File close 