Basic Concepts part 3

... [ Team LiB ] 3. 3 System Tasks and Compiler Directives In this section, we introduce two special concepts used in Verilog: system tasks and compiler directives. 3. 3.1 System Tasks Verilog ... scientific format (e.g., 3e10) %f or %F Display real number in decimal format (e.g., 2. 13) %g or %G Display real number in scientific or decimal, whichever is shorter Example 3- 3 shows some examples ... Example 3- 3 $display Task //Display the string in quotes $display("Hello Verilog World"); -- Hello Verilog World //Display value of current simulation time 230 $display($time); -- 230 //Display...

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Basic Concepts part 1

... machine-specific (must be at least 32 ). 234 56 // This is a 32 -bit decimal number by default 'hc3 // This is a 32 -bit hexadecimal number 'o21 // This is a 32 -bit octal number X or Z values ... value is denoted by z. 12'h13x // This is a 12-bit hex number; 4 least significant bits unknown 6'hx // This is a 6-bit hex number 32 'bz // This is a 32 -bit high impedance number An ... signed specifier can be added for signed arithmetic. -6'd3 // 8-bit negative number stored as 2's complement of 3 -6'sd3 // Used for performing signed integer math 4'd-2 // Illegal...

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Basic Concepts part 2

... variable part select, one can choose parts byte = data1 [31 -:8]; //starting bit = 31 , width =8 => data [31 :24] byte = data1[24+:8]; //starting bit = 24, width =8 => data [31 :24] byte = data2 [31 -:8]; ... time check point value port_id [3] = 0; // Reset 3rd element (a 5-bit value) of port_id array. matrix[1][0] = 33 559; // Set value of element indexed by [1][0] to 33 559 array_4d[0][0][0][0][15:0] ... arithmetic. Example 3- 2 shows the declaration of a signed register. Example 3- 2 Signed Register Declaration reg signed [ 63: 0] m; // 64 bit signed value integer i; // 32 bit signed value 3. 2.4 Vectors...

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IELTS Part 2 and Part 3 Topics and Questions

... ------------------------------------------------------------------------------------------------ 1 03. A Person Who Took Care of You in Your Childhood Describe a person who took care of you ... Describe a person you know who likes to help others (or, who often helps others). You should say: (3 of the items below are probably on the task card) who this person is ... your country. * You should say: what this event is when it happens who participates in this event and what they do how people celebrate this event (whether...

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