malformed statement in verilog3

syntax in assignment statement l-value.
verilog call module inside always block

the code doesn't Works. I am getting "Malformed statement" error. Can you guys help me? it appears in ring_c1 module instantiation. Thanks in advance.

module log2(N,clk);

`include "parameters.vh"

input [7:0] N;
reg [7:0] aux ;
reg [7:0] last_log;
reg [7:0] div_last;
output reg [7:0] y;
// assign aux = N;
input clk;

parameter high = 1;

always @ (posedge clk) 
begin 
    ring_c1 ri1 ( aux[0], div_last);
    aux = aux >> 1;

    if (aux < 1 )  
        begin   
            ring_c1 r1v ( high, div_last);
            log_Finale (last_log, div_last);

            y = y + last_log;

       end      
    else
        y = y+1;
    end 
endmodule 

You can't instance components in an always statement.

You have to place them outside the always and then use them.

malformed statement in verilog3, You are using code to describe real hardware, gates, flip-flops, banks of memory, etc. If you can't envision the hardware that your code will produce, you're doing it wrong. You can't have hardware appear and disappear in real time based on signals in your design. Teams. Q&A for Work. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

Search for a basic training course for Verilog.

One completely free example is available here: http://vol.verilog.com/

Malformed statement Verilog, As @alex.forencich showed, bit-slicing is to be done by +: operator since you have non-constant slicing index. Also, input is a SystemVerilog  The JavaScript exception "malformed formal parameter" occurs when the argument list of a Function() constructor call is invalid somehow. Message SyntaxError: Expected {x} (Edge) SyntaxError: malformed formal parameter (Firefox)

To expand on @Oldfart's comment: You are trying to write RTL (register transfer language) as if it was a programming language expect with module instantiation instead of function calls--it isn't. You are using code to describe real hardware, gates, flip-flops, banks of memory, etc. If you can't envision the hardware that your code will produce, you're doing it wrong. You can't have hardware appear and disappear in real time based on signals in your design. However, you can have the modules instantiated and use multiplexer logic to design which module outputs you wish to use.

Why is this a malformed statement?, Why is this a malformed statement? verilog. `timescale 1ps/1ps module test1(​output t1, input t2, input t3); always begin #1  I tried the latest snapshot: Icarus Verilog version 0.10.0 (devel) (s20130827) I get the following errors from this code in an altera system verilog file.

Malformed Statement · Issue #245 · steveicarus/iverilog · GitHub, ./mux.sv:4: error: malformed statement Below is a snippet of some of I used the instruction for install Icarus verilog on ubuntu from the this link  To work around this try removing the const keyword in the function definition. > Cary > > > > On Tuesday, August 5, 2014 9:46 AM, Lonnie L Gliem <lgliem@> wrote: > > > > I updated to a newer version of altera and got passed that and now back to the syntax errors in altera sv file errors.

Icarus Verilog / [Iverilog-devel] system verilog syntax error., I tried the latest snapshot: Icarus Verilog version 0.10.0 (devel) (s20130827) I get the following errors error: malformed statement altera .sv file  Procedural Statements And Control Flow. Part-III. Feb-9-2014 : Sequence: A sequence instance can be used in event expressions to control the execution of procedural statements based on the successful match of the sequence.

Verilog: How Do I Use An Input In An If Statement?, design.sv:12: error: malformed statement design.sv:16: syntax error design.sv:18: Syntax in assignment statement l-value. design.sv:22: syntax error Unfortunately, there is a dearth of good Verilog documentation online, so using them can be harder than it should be. This article explains the syntax and provides plenty of examples, including how to do this in Xilinx Vivado. Feedback to @WillFlux is most welcome. Last updated February 2018. Verilog Syntax