Beg you! The two should be how to write the

1, write a trial assembly language subroutine implementation of r1 is a 32-bit unsigned integer into eight ASCII representation of hexadecimal number, results in r0 to 8 in the storage unit,

2, C language and assembly language programming, C language programming to realize the keyboard input number decimal number 4, written in assembly language subroutine calculate the average of the four number, by the terminal output calculation results,