What is the difference between == and === in Verilog?
Some data types in Verilog, such as reg, are 4-state. This means that each bit can be one of 4 values: 0,1,x,z. This means that each bit can be one of 4 values: 0,1,x,z. With the "case equality" operator, === , x's are compared, and the result is 1.
verilog - What is `+:` and `-:`? - Stack Overflow
Normal part selects in Verilog require constants. So attempting the above with something like dword[i+7:i] is not allowed. So if you want to select a particular byte using a variable select, you can use the indexed part select.
verilog - What is the difference between single (&) and double ...
Jun 26, 2013 · This isn't quite correct. In Verilog, a vector (or any other) object is 'true' if it is non-zero, and it is known - in other words, it does not contain x/z metavalues. So, it's not 'tested for equality to 0'. @VL: try not to combine Verilog and SV questions - they're different languages. You wouldn't ask a C question in a C++ group, or vice-versa.
What is the difference between = and <= in Verilog?
Feb 16, 2016 · See also Nonblocking Assignments in Verilog Synthesis, Coding Styles That Kill!
<= Assignment Operator in Verilog - Stack Overflow
Nov 4, 2014 · "<=" in Verilog is called non-blocking assignment which brings a whole lot of difference than "=" which is called as blocking assignment because of scheduling events in any vendor based simulators. It is Recommended to use non-blocking assignment for sequential logic and blocking assignment for combinational logic, only then it infers correct ...
What is the difference between Verilog ! and - Stack Overflow
May 7, 2013 · That use of ~ in the if statement is not very clear. I would always use ~ with a comparison. Also my simulator does not think Verilog and SystemVerilog are the same thing. Verilog is often used to refer to the 1995 or 2001 specs before SystemVerilog it makes a big difference to those using older tools. –
vhdl - Verilog question mark (?) operator - Stack Overflow
Sep 9, 2012 · I'm trying to translate a Verilog program into VHDL and have stumbled across a statement where a question mark (?) operator is used in the Verilog program. The following is the Verilog code; 1 m...
system verilog - Indexing vectors and arrays with - Stack Overflow
Verilog: Better syntax for many cases in a case structure. 2. Non-constant indexing for a logic statement ...
operator in verilog - Stack Overflow
Jul 17, 2013 · i have a verilog code in which there is a line as follows: parameter ADDR_WIDTH = 8 ; parameter RAM_DEPTH = 1 << ADDR_WIDTH; here what will be stored in RAM_DEPTH and what does the << operator do here.
Verilog ** Notation - Stack Overflow
Double asterisk is a "power" operator introduced in Verilog 2001. It is an arithmetic operator that takes left hand side operand to the power of right hand side operand. In other words, X ** Y raises X to the power of Y .