Always Thinking Computer - Search localsearch

stackoverflow.com

https://stackoverflow.com/questions/15450149/what-…

verilog - What does always block @ (*) means? - Stack Overflow

The (*) means "build the sensitivity list for me". For example, if you had a statement a = b + c; then you'd want a to change every time either b or c changes. In other words, a is "sensitive" to b & c. So to set this up: always @( b or c ) begin a = b + c; end But imagine you had a large always block that was sensitive to loads of signals. Writing the sensitivity list would take ages. In fact ...

stackoverflow.com

https://stackoverflow.com/questions/9659038/whats-…

What's included in a Verilog always @* sensitivity list?

So, always use "always @*" or better yet "always_comb" and forget about the concept of sensitivity lists. If the item in the code is evaluated it will trigger the process. Simple as that. It an item is in an if/else, a case, assigned to a variable, or anything else, it will be "evaluated" and thus cause the process to be triggered.

stackoverflow.com

https://stackoverflow.com/questions/6009998/verilo…

Verilog Always block using (*) symbol - Stack Overflow

The always @(*) syntax was added to the IEEE Verilog Std in 2001. All modern Verilog tools (simulators, synthesis, etc.) support this syntax. Here is a quote from the LRM (1800-2009): An incomplete event_expression list of an event control is a common source of bugs in register transfer level (RTL) simulations. The implicit event_expression, @*, is a convenient shorthand that eliminates these ...

stackoverflow.com

https://stackoverflow.com/questions/32778798/behav…

Behavior difference between always_comb and always@ (*)

always @(*) was added by Verilog IEEE 1364-2001 standard and replaced by always_comb in the SystemVerilog IEEE 1800-2005 standard. always @(*) should no longer be used because it does not correctly simulate hardware in all cases. In addition to the difference you note with functions, it does not handle constant logic correctly. parameter C = 0; reg A,B; always @(*) A = B && C; A remains ...

stackoverflow.com

https://stackoverflow.com/questions/9976736/verilo…

Verilog: Difference between `always` and `always - Stack Overflow

Is there a difference between an always block, and an always @* block?

stackoverflow.com

https://stackoverflow.com/questions/23101717/diffe…

Difference among always_ff, always_comb, always_latch and always

I am totally confused among these 4 terms: always_ff, always_comb, always_latch and always. How and for what purpose can these be used?

stackoverflow.com

https://stackoverflow.com/questions/27181187/alway…

Always vs forever in Verilog HDL - Stack Overflow

The always construct can be used at the module level to create a procedural block that is always triggered. Typically it is followed by an event control, e.g., you might write, within a module, something like: always @(posedge clk) <do stuff> always @(en or d) <do stuff> always @* <do stuff>, can also use @(*) This is the typical way to write latches, flops, etc. The forever construct, in ...

stackoverflow.com

https://stackoverflow.com/questions/15938158/use-o…

verilog - Use of forever and always statements - Stack Overflow

The difference between forever and always is that always can exist as a "module item", which is the name that the Verilog spec gives to constructs that may be written directly within a module, not contained within some other construct. initial is also a module item. always blocks are repeated, whereas initial blocks are run once at the start of ...

stackoverflow.com

https://stackoverflow.com/questions/44759089/veril…

Verilog (assign in always) - Stack Overflow

Always use blocking assignments for combinatorial or level-sensitive code, as well a clock assignments Always use non-blocking assignments for variables that are written on a clock edge, and read on the same clock edge in another process.

stackoverflow.com

https://stackoverflow.com/questions/75905932/how-t…

How to always disable/skip a job in Github actions? (Not step/action)

How to always disable/skip a job in Github actions? (Not step/action) Asked 2 years, 10 months ago Modified 2 years, 10 months ago Viewed 28k times