arm asm rbit(비트 뒤집기)

왜 찾게 되었냐면.. 알고 싶지 않았습니다.. -_-

[링크 : https://stackoverflow.com/questions/20436466/lsb-to-msb-bit-reversal-on-arm]

 

RBIT Reverse the bit order in a 32-bit word. Syntax RBIT{cond} Rd, Rn

[링크 : https://developer.arm.com/documentation/dui0473/m/arm-and-thumb-instructions/rbit]

 

REV Reverse the byte order in a word. Syntax REV{cond} Rd, Rnn

[링크 : https://developer.arm.com/documentation/dui0473/m/arm-and-thumb-instructions/rev]