blob: fb0b46af5c089232b9b0032eecac686740bbd666 (
plain)
1
2
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
|
/*
* turn a uint32_t into a little-endian 4 byte array
*/
function u32_to_u8x4(val) {
u8x4 = new Uint8Array(0x4);
val_ = val >>> 0;
u8x4[0] = ((val_ >> 0) & 0xff);
u8x4[1] = ((val_ >> 8) & 0xff);
u8x4[2] = ((val_ >> 16) & 0xff);
u8x4[3] = ((val_ >> 24) & 0xff);
return u8x4;
}
/*
* turn a uint16_t into a little-endian 2 byte array
*/
function u16_to_u8x2(val) {
u8x2 = new Uint8Array(0x2);
val_ = val >>> 0;
u8x2[0] = ((val_ >> 0) & 0xff);
u8x2[1] = ((val_ >> 8) & 0xff);
return u8x2;
}
/*
* turn a little-endian 4 byte array into a uint32_t
*/
function u8x4_to_u32(buf) {
u32 = 0x0;
u32 += (buf[0] << 0);
u32 += (buf[1] << 8);
u32 += (buf[2] << 16);
u32 += (buf[3] << 24);
return u32 >>> 0;
}
/*
* turn a little-endian 2 byte array into a uint16_t
*/
function u8x2_to_u16(buf) {
u16 = 0x0;
u16 += (buf[0] << 0);
u16 += (buf[1] << 8);
return u16 >>> 0;
}
|
