Newer
Older
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
static int count_streams = 0;
static long long charIn=0;
static long long final_char=0;
int addNum=0;
void pixel(ap_int<32> selector,
ap_int<32> position1,
ap_int<32> position2,
ap_int<32> stream_count,
ap_int<32> ascii,
stream &din,
stream &dout
) {
#pragma HLS INTERFACE ap_ctrl_none port=return
#pragma HLS INTERFACE s_axilite port=selector
#pragma HLS INTERFACE s_axilite port=position1
#pragma HLS INTERFACE s_axilite port=position2
#pragma HLS INTERFACE s_axilite port=stream_count
#pragma HLS INTERFACE s_axilite port=ascii
#pragma HLS INTERFACE axis port=din
#pragma HLS INTERFACE axis port=dout
pkt_t pkt=din.read();
switch(selector)
{
case 0:
if (count_streams == 0){
charIn=convert(ascii);
final_char=0;
}
if((count_streams >= 3 * (position1 - 1)) && (count_streams < 3 * (position2) - 1)){
addNum=0;
if(charIn!=0){
addNum=charIn%10;
charIn=(int)charIn/10;
}
if(pkt.data % 2 == 0 && addNum == 1){
pkt.data += 1;
}else if(pkt.data % 2 != 0 && addNum == 0){
pkt.data -= 1;
}
}
break;
case 1:
if((count_streams >= 3 * (position1 - 1)) && (count_streams < 3 * (position2)-1)){
decrypt(pkt.data);
}
break;
default:
break;
}
count_streams++;
if (count_streams == stream_count){
count_streams = 0;
charIn=0;
addNum=0;
ascii=0;
if(selector == 1){
ascii= convertBinInt(final_char);
final_char=0;
}
}
dout.write(pkt);
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
long long convert(int n) {
long long bin = 0;
int rem, i = 1, step = 1;
while (n != 0) {
rem = n % 2;
n /= 2;
bin += rem * i;
i *= 10;
}
return bin;
}
void decrypt(int data) {
int bit;
if(data % 2 == 0){
bit = 0;
}else if(data % 2 != 0){
bit=1;
}
final_char= final_char*10+bit;
}
int convertBinInt(long long n) {
int dec = 0, i = 7, b=0,rem=0;
while (n != 0) {
b=pow(10,i);
rem = n / b;
n =n % b;
dec += rem * pow(2, 7-i);
--i;
}
return dec;
}