Op Code Operation ADD SUB AND ORR ALU Control bits 00 01 10 11 Status effects N, Z, C, V N, Z, C, V N. Hint: use a decode of the control bits to conditionally create the 2-s complement of an operand.Ĭontrol inputs There are a large number of possible control inputs on a complete ARM ALU. The 4-bit ripple-carry adder is built using 4 1-bit full adde. A Verilog code for a 4-bit Ripple-Carry Adder is provided in this project. Full VHDL code for the ALU was presented. Be sure that your design uses no more than one adder. Last time, an Arithmetic Logic Unit ( ALU ) is designed and implemented in VHDL. Result is negative Z Result is zero с Result is carry out Result is overflow An adder is a relatively expensive piece of hardware. The four flags are as follows: ALUFlag bit name Meaning N. It should have the following module declaration: module alu (input logic (31:0] a, b, input logic (1:0] ALUControl, output logic (31:0] Result, output logic (3:0] ALUFlags) The four bits of ALUFlags should be TRUE if a condition is met. Transcribed image text: SystemVerilog code Create a 32-bit ALU in System Verilog.
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