... register r0.PRE r0 = 0x00000000r1 = 0x000000 02 r2 = 0x000000 02 MUL r0, r1, r2 ; r0 = r1*r2POST r0 = 0x00000004r1 = 0x000000 02 r2 = 0x000000 02 ■The long multiply instructions (SMLAL, SMULL, ... lower 32 bits, and register r1 contains the higher 32 bits of the64-bit result.PRE r0 = 0x00000000r1 = 0x00000000r2 = 0xf00000 02 r3 = 0x000000 02 UMULL r0, r1, r2, r3 ; [r1,r0] = r2*r3POST ... r1 = 0x20000001r2 = 0x20000001r3 = 0x00000004SMLATB r4, r1, r2, r3POST r4 = 0x000 020 04The instruction multiplies the top 16 bits of register r1 by the bottom 16 bits of register r2.It adds...