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#ifndef THC_ASM_UTILS_INC
#define THC_ASM_UTILS_INC
// Collection of direct PTX functions
__device__ __forceinline__
unsigned int getBitfield(unsigned int val, int pos, int len) {
unsigned int ret;
asm("bfe.u32 %0, %1, %2, %3;" : "=r"(ret) : "r"(val), "r"(pos), "r"(len));
return ret;
}
__device__ __forceinline__
unsigned int setBitfield(unsigned int val, unsigned int toInsert, int pos, int len) {
unsigned int ret;
asm("bfi.b32 %0, %1, %2, %3, %4;" :
"=r"(ret) : "r"(toInsert), "r"(val), "r"(pos), "r"(len));
return ret;
}
__device__ __forceinline__ int getLaneId() {
int laneId;
asm("mov.s32 %0, %laneid;" : "=r"(laneId) );
return laneId;
}
__device__ __forceinline__ unsigned getLaneMaskLt() {
unsigned mask;
asm("mov.u32 %0, %%lanemask_lt;" : "=r"(mask));
return mask;
}
__device__ __forceinline__ unsigned getLaneMaskLe() {
unsigned mask;
asm("mov.u32 %0, %%lanemask_le;" : "=r"(mask));
return mask;
}
__device__ __forceinline__ unsigned getLaneMaskGt() {
unsigned mask;
asm("mov.u32 %0, %%lanemask_gt;" : "=r"(mask));
return mask;
}
__device__ __forceinline__ unsigned getLaneMaskGe() {
unsigned mask;
asm("mov.u32 %0, %%lanemask_ge;" : "=r"(mask));
return mask;
}
#endif // THC_ASM_UTILS_INC
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