1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
package farm
func rotate32(val uint32, shift uint) uint32 {
return ((val >> shift) | (val << (32 - shift)))
}
func rotate64(val uint64, shift uint) uint64 {
return ((val >> shift) | (val << (64 - shift)))
}
func fetch32(s []byte, idx int) uint32 {
return uint32(s[idx+0]) | uint32(s[idx+1])<<8 | uint32(s[idx+2])<<16 | uint32(s[idx+3])<<24
}
func fetch64(s []byte, idx int) uint64 {
return uint64(s[idx+0]) | uint64(s[idx+1])<<8 | uint64(s[idx+2])<<16 | uint64(s[idx+3])<<24 |
uint64(s[idx+4])<<32 | uint64(s[idx+5])<<40 | uint64(s[idx+6])<<48 | uint64(s[idx+7])<<56
}
|
