The always keyword acts similar to the “C” construct while(1) {..} in the sense that it will execute forever. The other interesting exception is the use of the initial keyword with the addition of the forever keyword. The example below is functionally identical to the always example above...
Verilog 2001 adds a new keyword: automatic. This keyword, when added to a task, makes the task re-entrant. All task declarations with automatic are allocated dynamically for each concurrent task entry. A function with added automatic keyword allows the function to be called recursively. Example ...
It is typically used for describing combinational logic and is specified using the assigned keyword. 8. Explain how Verilog Repeat Loop works. The repeat loop in Verilog allows you to execute a block of code a specified number of times. It is a convenient way to avoid duplicating code when ...
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2.15A Jun.12.2006 Preprocessor Fix bug of `ifdef/`else when including line comment used with `compiler directive Simulation Engine Change 0'bx operation as not compile error GUI Minor improvement. 2.14B Jun.1.2006 Simulation Engine Fix bug of net multipiler in 2.14A ...
,hold); else vInMax=11.0*V(in,hold); V(out,hold) <+ (V(in,hold)-vInMax*V(n1,hold))/peakMag; end Both vInMaxOld and vInMax were defined earlier in the Verilog-A block as vInMax=0.001 and vInMaxOld=0.001. In this case, because vInMaxOld is not being used and can be deleted...
Of course a final else-statement will disable any priority if testing. So what does unique if mean? The unique keyword shall cause the simulator to report a run- time error if an if-else-if statement is ever found that matches more than one of the if-else- if tests during the current...
sign = -(v < 0); // if v < 0 then -1, else 0. // or, to avoid branching on CPUs with flag registers (IA32): sign = -(int)((unsigned int)((int)v) >> (sizeof(int) * CHAR_BIT - 1)); // or, for one less instruction (but not portable): ...
Parameters must be defined within module boundaries using the keyword parameter. A parameter is a constant that is local to a module that can optionally be redefined on an instance-byinstance basis. For parameterized modules, one or more parameter declarations typically precede the port declarations ...
•Widelyusedforquickdevelopmentofmodel •Followbysynthesis •We'llconsidertwotypes: o Continuous assignment (Boolean equations) o Cyclic behavior (more general, e.g. algorithms) Copyright 2001, 2003 MD Ciletti 6Example: Abstract Models of Boolean Equations • Continuous assignments (Keyword:...