[SOLVED] why the `__FILE__ and `__LINE__ macros not displaying in this SV code ??

[anilineda]

Hi, i am a beginner just started learning Systemverilog. while i am trying a small example mentioned in textbooks

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Code Verilog - [expand]
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`include "macro.h" //macro included
class exercise1 ;
  rand bit [3:0] addr;                                    // a simple class
  rand bit [7:0] data;
  constraint cb{addr>2 ; addr < 5 ;}         
endclass
 
module test;
  exercise1 p;                                       // on object created
 
  initial begin
     p=new();                                     // allocated memory space and defaulted to 0.
    `SV_RAND_CHECK(p.randomize());
    $display("next");
    `SV_RAND_CHECK(p.randomize());
    $display("data = %0d, address = %0d", p.data,p.addr);
    `SV_RAND_CHECK(p.randomize());
    $display("data = %0d, address = %0d", p.data,p.addr);
    `SV_RAND_CHECK(p.randomize());
    $display("data = %0d, address = %0d", p.data,p.addr);
    `SV_RAND_CHECK(p.randomize());
    $display("data = %0d, address = %0d", p.data,p.addr);
  end
endmodule
    
// a separate file with the file name "macro.h"
`define SV_RAND_CHECK(r) \
   do begin \
     if ((r)) begin \
       $display("%s:%0d: Randomization passed "%s"", \
                `__FILE__, `__LINE__, r); \
     end \
   end while (0)

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result is shown in picture

- - - Updated - - -

I am mistaken , macros working properly. now the question is argument 'r' is displaying some symbol, but it is supposed to display a true value.

 

[ads-ee]

I don't know SV but this looks wrong:

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Code Verilog - [expand]
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"%s:%0d: Randomization passed "%s""

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the "%s:%0d: Randomization passed " ends that string and then you have a %s"" following? Notice the second %s is not pink.

If you wanted double-quotes around the %s then you need to escape them, which I'm not sure if it works when you are already making the `define multi-line with escaped line ends. I'm sort of surprised you didn't get a warning or error when compiling with that display line.

 

[dave_59]

Your macro should be

`define SV_RAND_CHECK(r) \
   begin \
     if ((r)) begin \
       $display("%s:%0d: Randomization passed %b", \
                `__FILE__, `__LINE__, r); \
     end \
   end

 

[anilineda]

if i use r as like shown `"r`" . what it represents, and the result of this looks big.

`define SV_RAND_CHECK(r) \
do begin \
if ((r)) begin \
$display("%s:%0d: Randomization passed "%h"", \
`__FILE__, `__LINE__, `"r`"); \
end \
end while (0)

result:
testbench.sv:18: Randomization passed "702e72616e646f6d697a652829"
next
testbench.sv:20: Randomization passed "702e72616e646f6d697a652829"
data = 136, address = 4
testbench.sv:22: Randomization passed "702e72616e646f6d697a652829"
data = 154, address = 4
testbench.sv:24: Randomization passed "702e72616e646f6d697a652829"
data = 95, address = 3
testbench.sv:26: Randomization passed "702e72616e646f6d697a652829"
data = 132, address = 4

 

[dave_59]

What do you want to have printed? Do you want the result returned from the call to p.randomize()? This is what you had asked for in the OP. ("but it is supposed to display a true value.") But your last post seems like you want the string representation of what was called. This seems more reasonable; then you want:

`define SV_RAND_CHECK(r) \
begin \
if ((r)) begin \
$display("%s:%0d: Randomization passed "%s"", \
`__FILE__, `__LINE__, `"r`"); \
end \
end