示例7.5中描述了使用两种不同的“case”结构来推断并行逻辑的有效Verilog RTL描述。对于 “op_code_in[3]=0” 执行算术运算,当op_code_in[3]=1时,它执行逻辑运算。 图7.7 ALU顶层图表7.5 8位ALU的信号或引脚说明 表7.6 8位ALU的操作表 示例7.5 8位ALU的Verilog RTL 图7.8综合的8位ALU 8位ALU的综合图如...
verilog如何表示缺省的数字呢?比如case({op,funct,rt}){BEQ_op,6'bxxxxxx,5'bxxxxx}:ALUCode=alu_beq;{BNE_op,6'bxxxxxx,5'bxxxxx}:ALUCode=alu_bne;我想表示当funct和rt为任意值时,只要op=BEQ_op,则ALUCode=alu_beq.如何表示缺省的funct和rt呢?用x好像不行啊 答案 case(op)BEQ_op:ALUCode=alu...
input [3:0] op_code, output reg carry_out, output reg [31:0] result_out ); localparam ADD = 0, SUB = 1, AND = 2, OR = 3, XOR = 4, NONA = 5, NONB = 6; always @ (op_code or data_a_in or data_b_in) case(op_code) ADD : {carry_out,result_out} <= data_a_in...
verilog如何表示缺省的数字呢?比如case({op,funct,rt}){BEQ_op,6'bxxxxxx,5'bxxxxx}:ALUCode=alu_beq;{BNE_op,6'bxxxxxx,5'bxxxxx}:ALUCode=alu_bne;我想表示当funct和rt为任意值时,只要op=BEQ_op,则ALUCode=alu_beq.如何表示缺省的funct和rt呢?用x好像不行啊...
Left side select the file and in Tools : launch verilog compiler with current selection will get enable. Click it to compile the code Worklib is the directory where all the compiled codes are stored while Snapshot will have output of elaboration which in turn goes for simulation ...
Language: Verilog Sort: Fewest stars zslwyuan / Basic-SIMD-Processor-Verilog-Tutorial Star 128 Code Issues Pull requests Implementation of a simple SIMD processor in Verilog, core of which is a 16-bit SIMD ALU. 2's compliment calculations are implemented in this ALU. The ALU operation wil...
道理也比较简单,那么我们如何用verilog HDL描述一个全加器呢?如下所示:,是一个1-bit的全加器 module fa(sum,c_out,c_in,x,y); //full adder input x,y,c_in; output sum,c_out; assign {c_out,sum}=x+y+c_in; endmodule 有了半加器和全加器,我们就可以组成各种各样的加法器了。
This proposed design is implemented in Verilog code using Quartus II 64-bit Version 13.0.1 Build 232 06/122013 SJ Web Edition software tool. The waveforms of the proposed design are simulated using ModelSim ALTERA STARTER EDITION 10.1d Revision: 2012.11. Simulation has been done under all ...
Verilog的算术右移运算符是“___”。参考答案:>>>加减运算电路参考设计中,如果操作数{y3,y2,y1,y0}=4'b0101,选出下列描述正确的选项参考答案:当M=1时,C0=1,{b3,b2,b1,b0}的值为1010_当M=0时,C0=0,{b3,b2,b1,b0}的值为0101在Ripes中使用Memory标签可以打开存储器视图,使用该视图最下方的gotosec...
【FPGA】verilog实现ALU(算数逻辑单元) 算术逻辑单元(arithmetic and logic unit) 是能实现多组算术运算和逻辑运算的组合逻辑电路,简称ALU。 module ALU(A, B, Cin, Sum, Cout, Operate, Mode); input [3:0] A, B; // two operands of ALU input Cin; //carry in at the LSB input [3:0] ...