You may use case-equality operator (===) or case-inequality operator (!==) to match including X and Z and will always have a known value. OperatorDescription a === b a equal to b, including x and z a !== b a not equal to b, including x and z a == b a equal to b, ...
不能处理的数据是没有用的,在数字电路和计算机系统中总是需要一些形式的计算,让我们来看看Verilog中的一些运算符,这些运算符可以使综合工具实现相应的硬件元素。 Verilog算术运算符 仿真文件 module des; reg [7:0] data1; reg [7:0] data2; initial begin data1 = 45; data2 = 9; $display ("Add + ...
11、x10 x01xxSlide taken direct from Eric HoffmanNumbers in VerilogGeneral format is: Examples:4b1101 / this is a 4-bit binary number equal to 1310h2e7 / this is a 10-bit wide number specified in hexAvailable bases:d = decimal (please only use in test benches)h = hex (use this fr...
示例5 modulecompare(equal,a,b);outputequal;input[1:0] a,b;//[MSB:LSB],所以是2bitassignequal = (a==b)?1:0;/*如果a、b两个输入信号相等,输出为1,否则为0*/endmodule 做了一个2bit数比较器。 示例6 moduletrist2(out,in,enable);outputout;inputin,enable;bufif1mybuf(out,in.enable);endm...
Operator Type Operator Symbol Operation Performed Arithmetic * Multiply / Division + Add - Subtract % Modulus + Unary plus - Unary minus Logical ! Logical negation && Logical and || Logical or Relational > Greater than < Less than ...
1) 单目运算符(unary operator):可以带一个操作数,操作数放在运算符的右边。 2) 二目运算符(binary operator):可以带二个操作数,操作数放在运算符的两边。 3) 三目运算符(ternary operator):可以带三个操作,这三个操作数用三目运算符分隔开。 见下例: ...
// String Equality : Checkiffirstname equalsornotequals lastnameif(firstname == lastname) $display ("firstname=%s is EQUAL to lastname=%s", firstname, lastname);if(firstname != lastname) $display ("firstname=%s is NOT EQUAL to lastname=%s", firstname, lastname);//String comparison...
In the above example, had the statements used the “=” blocking operator instead of “⇐”, flop1 and flop2 would not have been swapped. Instead, as in traditional programming, the compiler would understand to simply set flop1 equal to flop2 (and subsequently ignore the redundant logic ...
Revision : 2000/02/29 Company : Verilog_group \***/ module ARITHMETIC (A , B, Q1, Q2 ,Q3, Q4 ); input [3:0] A, B ; //input operator output [4:0] Q1 ; //output sum, with carry bit output [3:0] Q2; //output sutract result output [3:0] Q3 ; //output quotion output...
Assigning entire array in verilog, arrays verilog assignment-operator synthesis. Share. Improve this question. Follow asked Nov 27, 2013 at 23:11. reign_man reign_man. 559 2 2 gold badges 8 8 silver badges 21 21 bronze badges. 0. Add a comment | 2 Answers Sorted by: Reset to default...