how do i do this?? Need this asap

Explain please

Thanks

Set B's lower nibble to A's upper nibble, and B's upper nibble to 7 1 #include "RIMS.h" B0 2 int main() { while(1) { Al 0 0 B1 4 A2 0 0 /* Your solution goes here */ B2 } D return 0; 10 } A4 00 B4 A5 0 0 B5 A6 0 0 B6 A7 0 0 B7 A = 0 B = 30 B