bitcount.h File Reference
helper functions (or macros) to count bits in machine words More...
This graph shows which files directly or indirectly include this file:
Functions | |
| static int | count_set_bits (unsigned int value) |
| Count the number of bit sets "Popcount". More... | |
| static int | count_trailing_zeros (unsigned int value) |
| Count the number of low order zero's before the first bit set. More... | |
Detailed Description
helper functions (or macros) to count bits in machine words
Function Documentation
◆ count_set_bits()
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static |
Count the number of bit sets "Popcount".
Based on Wikipedia article for Hamming_weight, it's optimized for cases when zeroes are more frequent.
Referenced by C64_FLI(), C64_pixels_to_FLI(), Load_BMP_Pixels(), and Load_ClipBoard_Image().
◆ count_trailing_zeros()
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static |
Count the number of low order zero's before the first bit set.
Referenced by C64_pixels_to_FLI(), Load_BMP_Pixels(), and Load_ClipBoard_Image().
