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Diffstat (limited to 'expt_0707_1.cu')
| -rw-r--r-- | expt_0707_1.cu | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/expt_0707_1.cu b/expt_0707_1.cu new file mode 100644 index 0000000..61a53c6 --- /dev/null +++ b/expt_0707_1.cu @@ -0,0 +1,38 @@ + +#include <cstdio> +#include <iostream> +#define PRINTF_BINARY_PATTERN_INT8 "%c%c%c%c%c%c%c%c" +#define PRINTF_BYTE_TO_BINARY_INT8(i) \ + (int)((((i) >> 7) & 1ull) + '0'), (int)((((i) >> 6) & 1ull) + '0'), \ + (int)((((i) >> 5) & 1ull) + '0'), (int)((((i) >> 4) & 1ull) + '0'), \ + (int)((((i) >> 3) & 1ull) + '0'), (int)((((i) >> 2) & 1ull) + '0'), \ + (int)((((i) >> 1) & 1ull) + '0'), (int)((((i)) & 1ull) + '0') + +#define PRINTF_BINARY_PATTERN_INT16 \ + PRINTF_BINARY_PATTERN_INT8 PRINTF_BINARY_PATTERN_INT8 +#define PRINTF_BYTE_TO_BINARY_INT16(i) \ + PRINTF_BYTE_TO_BINARY_INT8((i) >> 8), PRINTF_BYTE_TO_BINARY_INT8(i) +#define PRINTF_BINARY_PATTERN_INT32 \ + PRINTF_BINARY_PATTERN_INT16 PRINTF_BINARY_PATTERN_INT16 +#define PRINTF_BYTE_TO_BINARY_INT32(i) \ + PRINTF_BYTE_TO_BINARY_INT16((i) >> 16), PRINTF_BYTE_TO_BINARY_INT16(i) +#define PRINTF_BINARY_PATTERN_INT64 \ + PRINTF_BINARY_PATTERN_INT32 PRINTF_BINARY_PATTERN_INT32 +#define PRINTF_BYTE_TO_BINARY_INT64(i) \ + PRINTF_BYTE_TO_BINARY_INT32((i) >> 32), PRINTF_BYTE_TO_BINARY_INT32(i) +/* --- end macros --- */ + +__global__ void test() { + + auto last_known_point = 10981552822ULL, val = 10960094149ULL; + auto x = last_known_point - val; + printf("last_known_point =%llu, val = %llu " PRINTF_BINARY_PATTERN_INT64 "\n", + last_known_point, val, + PRINTF_BYTE_TO_BINARY_INT64(last_known_point - val)); +} + +int main() { + std::cout << (PRINTF_BINARY_PATTERN_INT64) << std::endl; + test<<<1, 1>>>(); + cudaDeviceSynchronize(); +}
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