These functions are executed in C, I need to change them to simple assembly functions using mainly LDR/STR

Thank you!

void OffBy0(void *dst, const void *src) ; // These functions each copy 1000 bytes of data. Each should

void OffBy1(void *dst, const void *src) ; // be optimized for source and destination regions that begin

void OffBy2(void *dst, const void *src) ; // at addresses that are 0, 1, 2 or 3 bytes beyond a word-aligned

void OffBy3(void *dst, const void *src) ; // location as indicated by the digit in their function name.