5.7 ADD r2, r3, #8 LD r4, (r2) ADD r1, r4, r8 ADD r5, r3, #16 LD r6, (r5) MUL r7, r1, r6 ADD r9, r3, #24 ST (19), r7 Rewrite the program from above to take advantage of post incrementing addressing mode. The value in r3 is allowed to be different at the end of the program from the value at the beginning. You may not use register plus immediate addressing mode anywhere in the program, but you may use register addressing mode.