diff options
| author | PikalaxALT <pikalaxalt@gmail.com> | 2021-07-25 13:23:02 -0400 |
|---|---|---|
| committer | PikalaxALT <pikalaxalt@gmail.com> | 2021-07-25 13:23:02 -0400 |
| commit | 5e0e326b75402a36c4d31502b8b5a05b862ac23c (patch) | |
| tree | 1b5807c1efb72dbdd9d01f329cefb41171913a64 /arm9/lib/NitroSDK/src/MATH_pop.c | |
| parent | 1f9d4503c898f9138422215132b53224571a281a (diff) | |
| parent | 68d7aa47cc52ef822220e0e35890863d7cad479f (diff) | |
Merge remote-tracking branch 'origin/master' into pikalax_work
Diffstat (limited to 'arm9/lib/NitroSDK/src/MATH_pop.c')
| -rw-r--r-- | arm9/lib/NitroSDK/src/MATH_pop.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arm9/lib/NitroSDK/src/MATH_pop.c b/arm9/lib/NitroSDK/src/MATH_pop.c new file mode 100644 index 00000000..18582494 --- /dev/null +++ b/arm9/lib/NitroSDK/src/MATH_pop.c @@ -0,0 +1,12 @@ +#include "global.h" +#include "MATH_pop.h" + +ARM_FUNC u8 MATH_CountPopulation(u32 x) { + x -= (x >> 1) & 0x55555555; + x = (x & 0x33333333) + ((x >> 2) & 0x33333333); + x += x >> 4; + x &= 0x0f0f0f0f; + x += x >> 8; + x += x >> 16; + return (u8)x; +} |