How can i provide space b/w the bits of a binary string ?

[mona_c]

help ....Verilog

Hello every one

well i need help regarding ..Verilog formats.... can any one tell...that..how can i provide space b/w the bits of a single binary string...e.g. 11000111 is a binary no. now i need the same no. but with spaces..like this...
1 1 0 0 0 1 1 1 or vice versa

can v do it using Verilog???

today i m adding one more ques to this one.... i m not able to read data..from the text file..into my test bench ..cany one tell me how to do that in verilog?

thanx
take care
Mona

 

[vvvvv]

help ....Verilog

Create array of bytes and write to it char codes
of ones = 31h
zeros = 30h
spaces=20h

 

[echo47]

help ....Verilog

Please describe more clearly what type variable you are trying to manipulate. Maybe show us your code example.

 

[z81203]

help ....Verilog

you would be try this "1_1_0_0_0_1_1_1". normally i wrote binary like this "8'b1010_0101".

 

[mona_c]

Re: help ....Verilog

Create array of bytes and write to it char codes
of ones = 31h
zeros = 30h
spaces=20h

can u pplzz elaborate what u wanna say

Added after 4 minutes:

Please describe more clearly what type variable you are trying to manipulate. Maybe show us your code example.

no code is there....the thing is very clear..... see this no. 1100 now i want this no. to show as 1 1 0 0 ..i.e. spaces in b/w the bits of the binary no. i want to manipulate an array of this kind...now can v do this suing verilog or using matlab???

 

[gliss]

help ....Verilog

Actually, it's not very clear what you want to do.

 

[mona_c]

Re: help ....Verilog

Actually, it's not very clear what you want to do.

dear...nothing is there..... see this string of binary bits ... 10101011 now i want to put spaces b/w the bits of this number so that it looks like
1 0 1 0 1 0 1 1

hope i m clear now

 

[gliss]

help ....Verilog

I'm trying to understand. You are typing this in a text editor? You are writing a Verilog module and you are entering a literal string?
-or-
You are watching the results of a simulation and see "101010011" get printed to the console or output file, and instead want to see "1 0 1 0 1 0 1 1"?
There are possibilities here. What context is the binary number in?

 

[vivek]

Re: help ....Verilog

Hi
if u are using $display, use '\b' to get a blank space or ' to '\t' to get a tab.

Eg : $display("%b\b%b\b%b\b%b", array[0],array[1],array[2],array[3]);

This should give you like : 1 0 1 0 instead of 1010

If you want more space use \t instead of \b

For reading from a file to your testbench consider using $fread, $fscanf, $fgetc.

Hope this helps

Vivek

 

[mona_c]

Re: help ....Verilog

I'm trying to understand. You are typing this in a text editor? You are writing a Verilog module and you are entering a literal string?
-or-
You are watching the results of a simulation and see "101010011" get printed to the console or output file, and instead want to see "1 0 1 0 1 0 1 1"?
There are possibilities here. What context is the binary number in?

hi..

the later one is correct !!! & i need to write..this form into the text file..taking output from a verilog code

 

[gliss]

help ....Verilog

If it's the later one, then I think vivek has answered your question.

 

[vivek]

Re: help ....Verilog

the later one is correct !!! & i need to write..this form into the text file..taking output from a verilog code

Hi
If u want to write this info into a file use $fdisplay. You should open a file for this like :

   reg [0:3] array;
   integer log_pointer;
   initial
     log_pointer = $fopen("file_name");
     $fdisplay (log_pointer,"data = %b\b%b\b%b\b%b", array[0],array[1],
                   array[2],array[3]);
   end

This will write your data to a file of the name you specify. log_pointer shall be the file pointer for the file you opened. It will increment automatically by one line for every $fdisplay.
If you need more such info about verilog HDL you can refer the book "Verilog HDL: A Guide to Digital Design and Synthesis" by Samir Palnitkar. The ebook is available in this forum. Pretty good for beginning with verilog.

Hope this helps
Vivek

 

[mona_c]

Re: help ....Verilog

the later one is correct !!! & i need to write..this form into the text file..taking output from a verilog code

Hi
If u want to write this info into a file use $fdisplay. You should open a file for this like :

   reg [0:3] array;
   integer log_pointer;
   initial
     log_pointer = $fopen("file_name");
     $fdisplay (log_pointer,"data = %b\b%b\b%b\b%b", array[0],array[1],
                   array[2],array[3]);
   end

This will write your data to a file of the name you specify. log_pointer shall be the file pointer for the file you opened. It will increment automatically by one line for every $fdisplay.
If you need more such info about verilog HDL you can refer the book "Verilog HDL: A Guide to Digital Design and Synthesis" by Samir Palnitkar. The ebook is available in this forum. Pretty good for beginning with verilog.

Hope this helps
Vivek

Hi vivek

thanx for ur help..but dear..i m not getting the right result yet..see what i m getting when i applied ur code

data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b
data = xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b xbxbxbx b

certainly not a desirable thing

 

[echo47]

Re: help ....Verilog

If that's approximately what you want, then how about changing the $fdisplay statement slightly?

integer log_pointer, n;
initial begin
  log_pointer = $fopen("file_name");
  for (n=0; n<16; n=n+1)
    $fdisplay (log_pointer,"data = %b %b %b %b", n[3], n[2], n[1], n[0]);
  $fclose(log_pointer);
end

data = 0 0 0 0
data = 0 0 0 1
data = 0 0 1 0
data = 0 0 1 1
data = 0 1 0 0
data = 0 1 0 1
data = 0 1 1 0
data = 0 1 1 1
data = 1 0 0 0
data = 1 0 0 1
data = 1 0 1 0
data = 1 0 1 1
data = 1 1 0 0
data = 1 1 0 1
data = 1 1 1 0
data = 1 1 1 1

 

[mona_c]

Re: help ....Verilog

If that's approximately what you want, then how about changing the $fdisplay statement slightly?

integer log_pointer, n;
initial begin
log_pointer = $fopen("file_name");
for (n=0; n<16; n=n+1)
$fdisplay (log_pointer,"data = %b %b %b %b", n[3], n[2], n[1], n[0]);
$fclose(log_pointer);
end[/code]

data = 0 0 0 0
data = 0 0 0 1
data = 0 0 1 0
data = 0 0 1 1
data = 0 1 0 0
data = 0 1 0 1
data = 0 1 1 0
data = 0 1 1 1
data = 1 0 0 0
data = 1 0 0 1
data = 1 0 1 0
data = 1 0 1 1
data = 1 1 0 0
data = 1 1 0 1
data = 1 1 1 0
data = 1 1 1 1

Hi echo47

well i have done my task...with the help of ur two codes....the things is choose the mid way of two yepp
that is how i did & all thanx to u 8)
here is the code

integer log_pointer;
wire [31:0] out;
initial begin
  log_pointer = $fopen("format.txt");
   	
		$monitor($realtime,,"ps %d %h %h %h %d ",in,clk,oe,reset,out);
  $fdisplay (log_pointer,"%b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b %b", out[31], out[30], out[29], out[28], out[27], out[26], out[25], out[24], out[23], out[22], out[21], out[20], out[19], out[18], out[17], out[16], out[15], out[14], out[13], out[12], out[11], out[10], out[9], out[8], out[7], out[6], out[5], out[4], out[3], out[2], out[1], out[0]);
 $fclose(log_pointer);
	$finish;
 end

& i got the correct ans..thanx again ..

God Bless u
take care
bye for now
Mona