第一次上机

1

搭建一个能处理三个输入指令的电路

00	输出0
01	输出上一次输出+1(\(a_n=a_{n-1}+1\))
10	输出之前输出之和(\(a_n=\mathop\Sigma\limits^{n-1}_{i=0}a_i\))

image-20240923220646182

image-20240923220711838

2

向量相乘

module dotProduct(
    input [31:0] vector_a,
    input [31:0] vector_b,
    output reg[4:0] out
    );
    reg[4:0] t;
    integer i;
    always @(vector_a or vector_b)begin
      t = 5'b0;
      for (i = 0; i < 32; i=i+1)begin
        t = t + (vector_a[i] * vector_b[i]);
      end
      out = t;
    end
endmodule

module dotProduct_tb();
    reg[31:0] a;
    reg[31:0] b;
    wire[4:0] out;

    initial begin
      a=32'b0;
      b=32'b0;
      #100
      a=32'd10;
      b=32'd10;
    end
    dotProduct uvv(.vector_a(a), .vector_b(b), .out(out));

endmodule

3

MIPS求数组中最长连续递增子数组

// C语言示例代码
#include <stdio.h>
int main(){
    int n;
    scanf("%d", &n);
    int max = 0;
    int len = 0;
    int last=-1, curr;
    while (n--){
        scanf("%d", &curr);
        if (curr > last){
            len += 1;
            max = len > max ? len : max;
        }else {
            len = 1;
        }
        last = curr;
    }
    printf("%d", max);
}

.eqv n, $s0
.eqv max, $s1
.eqv len, $s2
.eqv curr, $s3
.eqv last, $s4

.macro printInt(%int)
	move $a0, %int
	li $v0, 1
	syscall
.end_macro 

.macro inputInt(%int)
	li $v0, 5
	syscall
	move %int, $v0
.end_macro

.macro forLoop(%ct,%n,%startLabel,%endLabel)
	%startLabel:
	beq %ct, %n, %endLabel
.end_macro

.macro forEnd(%ct,%startLabel,%endLabel)
	addi %ct, %ct, 1
	j %startLabel
	%endLabel:
.end_macro

li last, -1
li $t0, 0
inputInt(n)
forLoop($t0,n,start,end)
	inputInt(curr)
	ble curr, last, less
		add len, len, 1
		bge max, len, skip
		move max, len
		skip:
		j tail
	less:
		li len, 1
	tail:
		move last, curr
forEnd($t0,start,end)

printInt(max)