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.include "asm/macros.inc"
.include "global.inc"
.text
arm_func_start MATH_CountPopulation
MATH_CountPopulation: ; 0x020DDC5C
ldr r1, _020DDC94 ; =0x55555555
ldr r2, _020DDC98 ; =0x33333333
and r1, r1, r0, lsr #0x1
sub r0, r0, r1
and r1, r0, r2
and r0, r2, r0, lsr #0x2
add r1, r1, r0
ldr r0, _020DDC9C ; =0x0F0F0F0F
add r1, r1, r1, lsr #0x4
and r0, r1, r0
add r0, r0, r0, lsr #0x8
add r0, r0, r0, lsr #0x10
and r0, r0, #0xff
bx lr
.balign 4
_020DDC94: .word 0x55555555
_020DDC98: .word 0x33333333
_020DDC9C: .word 0x0F0F0F0F
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