在verilog中不可使用++,--的操作符,只可使用i = i + 1。 Repeat 不同于for循环制定一个变量,使其自动递增想要的结果,repeat是显示指定一个循环数,以达到想要的结果。 1repeat(16)begin2$display ("Current value of i is %d", i);3i = i +1;4end 6. 变量赋值(Variable Assignment) 组合逻辑元素只...
Then we have another common type of code, where one reg variable is driven from more than one always block. Well it will surely cause synthesis error.Example - Initial Statement 1 module synthesis_initial( 2 clk,q,d); 3 input clk,d; 4 output q; 5 reg q; 6 7 initial begin 8 q ...
+ Unary plus - Unary minus Logical ! Logical negation && Logical and || Logical or Relational > Greater than < Less than >= Greater than or equal <= Less than or equal Equality == Equality != inequality Reduction ~ Bitwise negation ~& nand ...
( value, td, tt ); end endmodule 8-Bit Digital-to-Analog Converter Example of a N-bit ADC [above graphic - left]: The bus is accessed in a for loop, containing a transition filter, so the loop iterator index i must be a generate variable. Example of a N-bit DAC [above graphic...
Module declarations are templates for creating actual objects. Modules are instantiated inside other modules, and each instantiation is creating a single object from that template. The exception is the top-level module which is its own instantiation. The modules ports must to be matched to those wh...