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https://github.com/GOSTSec/ccminer
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48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#include "cuda_helper.h"
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/* Macros for uint2 operations (used by skein) */
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__device__ __forceinline__
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uint2 ROR8(const uint2 a) {
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uint2 result;
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result.x = __byte_perm(a.x, a.y, 0x4321);
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result.y = __byte_perm(a.y, a.x, 0x4321);
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return result;
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}
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__device__ __forceinline__
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uint2 ROL24(const uint2 a) {
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uint2 result;
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result.x = __byte_perm(a.x, a.y, 0x0765);
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result.y = __byte_perm(a.y, a.x, 0x0765);
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return result;
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}
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static __device__ __forceinline__ uint2 operator+ (const uint2 a, const uint32_t b)
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{
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#if 0 && defined(__CUDA_ARCH__) && CUDA_VERSION < 7000
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uint2 result;
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asm(
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"add.cc.u32 %0,%2,%4; \n\t"
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"addc.u32 %1,%3,%5; \n\t"
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: "=r"(result.x), "=r"(result.y) : "r"(a.x), "r"(a.y), "r"(b), "r"(0));
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return result;
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#else
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return vectorize(devectorize(a) + b);
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#endif
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}
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/* whirlpool ones */
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#ifdef __CUDA_ARCH__
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__device__ __forceinline__
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uint2 ROL16(const uint2 a) {
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uint2 result;
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result.x = __byte_perm(a.x, a.y, 0x1076);
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result.y = __byte_perm(a.y, a.x, 0x1076);
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return result;
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}
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#else
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#define ROL16(a) make_uint2(a.x, a.y) /* bad, just to define it */
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#endif
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