Fibonacci Series with negative numbers

SystemVerilog
, ,
1

Hello all! I’m trying to print fibonacci series with negative numbers. Here is the code:

class fibonacci_series;

	real term_fib_1;

	real  term_fib_2;

	int terms_total_fib;
	
	real term_fib_sum;
	
	int i;

		
		
		function void terms_needed(real term_fib_1 = -3 , real term_fib_2 = -8 , int terms_total_fib = 10);
			
			$display("\nTerms are term_fib_1 = %0d and term_fib_2 = %0d",term_fib_1,term_fib_2);
		
			$display("\nThe number of terms needed in the fibonacci series are %0d", terms_total_fib);
		
		endfunction: terms_needed
		
		
		task operation_fibonacci(real term_fib_1 = -3, real term_fib_2 = -8 , terms_total_fib = 10);
	
			
			for(i=1;i<=terms_total_fib;i++)
		
				begin
		
					term_fib_sum = term_fib_1 +  term_fib_2;
		
					term_fib_1   = term_fib_2;
		
					term_fib_2   = term_fib_sum;
				
									
					$display("\n%0d",term_fib_sum);
					
					
				end
			
		endtask: operation_fibonacci

endclass: fibonacci_series




module fibonacci_series_using_class;

	fibonacci_series f;

		initial begin

			f = new();
			
			f.terms_needed;
			
			f.operation_fibonacci;
			
		end

endmodule

O/P I got:

Terms are term_fib_1 = 4294967293 and term_fib_2 = 4294967288
# 
# The number of terms needed in the fibonacci series are 10
# 
# The required Fibonacci Series with 0 terms is
# 
# 4294967285
# 
# 4294967277
# 
# 4294967266
# 
# 4294967247
# 
# 4294967217
# 
# 4294967168
# 
# 4294967089
# 
# 4294966961
# 
# 4294966754
# 
# 4294966419

How do I rectify this? Thank you in advance.

2

In reply to Shashank Gurijala:

Please, Please use code tags making your code easier to read. I have added them for you several times.

Your problem is the formatting of the $display statement. The LRM says that the %d format specifier may only be used with integral arguments; you are using real numbers. Use %g instead.