They can have delays inside them and can actually delay the simulation while executing them.The example below will initialize r_Data in an incrementing pattern, assigning one value every 10 ns of simulation time. It also displays the values as it assigns them. This is not synthesizable code!
while((i < NUM_LOOPS) && !found) begin if(ready[i]) begin go[i] <=3D 1; found =3D 1; end i =3D i + 1; end end I have this type of code in my modules multiple times over for various loop situations, and they all use the same i variable. That code is properly synthesized...
but this kind of data is very important in hardware description language. In Verilog, scalar means a variable that has only one binary bit, while a vector represents a variable that has multiple binary bits. If the bit width is not specified, the system defaults it to scalar. ...
For, while, repeat & forever loops Tasks, functions and automatic (V2K1) Rise, fall, min, max delays `timescale & $timeformat Lab: (optional) `timescale & $timeformat capability and efficiency Day Two Combinational Logic Modeling - Behavioral & synthesizable coding styles for modeling combinati...
Difference between “==” and “===” operators: The “==” are synthesizable while “===” operators are not synthesizable. If either of the operand in “==” has x or z the the result is always x while “===” compare x and z too. The same is true for “!=” and “!==...
For, while, repeat & forever loops Tasks, functions and automatic (V2K1) Rise, fall, min, max delays `timescale & $timeformat Lab: (optional) `timescale & $timeformat capability and efficiency File I/O & Usage - Description of Verilog file I/O commands and usage. Fundamentals of using...
SystemVerilog always_comb, always_ff. New and Improved. Verilog reg, Verilog wire, SystemVerilog logic. What's the difference? Verilog twins: case, casez, casex. Which Should I Use? SystemVerilog Arrays, Flexible and Synthesizable SystemVerilog Struct and Union - for Designers too...
3)有些工具支持有些工具不支持的结构:casex,casez,wand,triand,wor,trior,real,disable,forever,arrays,memories,repeat,task,while。 建立可综合模型的原则:要保证Verilog HDL赋值语句的可综合性,在建模时应注意以下要点: 1)不使用initial。 2)不使用#10。 3)不使用循环次数不确定的循环语句,如forever、while等...
It can be translated into efficient and synthesizable Verilog HDL code by a compiler called fsm2v designed at our chair. FSMDesigner is based on the Simple-Moore FSM model, which completely eliminates the output function by using parts of the state vector as outputs. TimeGen : TimeGen is an...
It also adds support for simple for loops, while loops and loop-based module generation. Dynamic looping constructs are not synthesizable, so all looping constructs are processed before the netlist is generated. This paper will present the missing language features that were implemented, the scope ...