SystemVerilog生成随机矩阵_this.randomize

SystemVerilog生成随机矩阵：

// 1.first part: a systemvrilog program block. (this part can be omitted)
class hello_str;
    string str = "Hello world";
endclass
 
class hello_martix;
    rand reg[(4+6):0] m[16][16];
 
    reg[10:0] col_sum[16];
 
    function void random_mat();
        assert(this.randomize() with{
            m[0].sum()<=128;
            m[1].sum()<=128;
            m[2].sum()<=128;
            m[3].sum()<=128;
            m[4].sum()<=128;
            m[5].sum()<=128;
            m[6].sum()<=128;
            m[7].sum()<=128;
            m[8].sum()<=128;
            m[9].sum()<=128;
            m[10].sum()<=128;
            m[11].sum()<=128;
            m[12].sum()<=128;
            m[13].sum()<=128;
            m[14].sum()<=128;            
            m[15].sum()<=128;
 
            (m[0][ 0]+m[1][ 0]+m[2][ 0]+m[3][ 0]+m[4][ 0]+m[5][ 0]+m[6][ 0]+m[7][ 0]+m[8][ 0]+m[9][ 0]+m[10][ 0]+m[11][ 0]+m[12][ 0]+m[13][ 0]+m[14][ 0]+m[15][ 0])<=128;
            (m[0][ 1]+m[1][ 1]+m[2][ 1]+m[3][ 1]+m[4][ 1]+m[5][ 1]+m[6][ 1]+m[7][ 1]+m[8][ 1]+m[9][ 1]+m[10][ 1]+m[11][ 1]+m[12][ 1]+m[13][ 1]+m[14][ 1]+m[15][ 1])<=128;
            (m[0][ 2]+m[1][ 2]+m[2][ 2]+m[3][ 2]+m[4][ 2]+m[5][ 2]+m[6][ 2]