blob: 0be8f0a0ef559b579add1d5ec6a2328039324835 (
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
|
#pragma once
#include "xmrstak/backend/globalStates.hpp"
#include <atomic>
#include <cstdint>
#include <climits>
namespace xmrstak
{
// only allowed for unsigned value \todo add static assert
template<typename T>
T reverseBits(T value)
{
/* init with value (to get LSB) */
T result = value;
/* extra shift needed at end */
int s = sizeof(T) * CHAR_BIT - 1;
for (value >>= 1; value; value >>= 1)
{
result <<= 1;
result |= value & 1;
s--;
}
/* shift when values highest bits are zero */
result <<= s;
return result;
}
struct iBackend
{
inline uint32_t calc_start_nonce(uint32_t resume)
{
return reverseBits<uint32_t>(static_cast<uint32_t>(iThreadNo + globalStates::inst().iThreadCount * resume));
}
// Limited version of the nonce calc above
inline uint32_t calc_nicehash_nonce(uint32_t start, uint32_t resume)
{
return start | ( calc_start_nonce(resume) >> 8u );
}
std::atomic<uint64_t> iHashCount;
std::atomic<uint64_t> iTimestamp;
uint32_t iThreadNo;
iBackend() : iHashCount(0), iTimestamp(0)
{
}
};
} // namepsace xmrstak
|
