Write a $32-$bit x$86$ assembly program that performs the following operations:

Part $1$: Arithmetic Expression Implement the following arithmetic expression:

;$//$ Part $1$:

;$//$ Implement the following arithmetic expression :

;$//$ EAX $=-$val$2+7-$ val$3+$ val$1$

$\frac{\text{;}}{\frac{?}{?}}$

;$//$ Where:

;$//$ val$1=+8$

$\frac{\text{;}}{\frac{?}{?}}$ val$2=-15$

;$//$ val$3=20$

;$//$ EAX should be $10$

Part $2$: Reorder Values in Registers

;$//$ part $2$:

;$//$ Using the XCHG instruction no more than three times,

;$//$ reorder the values in four $8-$ bit registers from the

;$//$ order A$,$ B$,$ C$,$ D to the order B$,$ C$,$ D$,$ A as follows, registers used: AL$,$ BL$,$ Cl$,$ DL

Before execution: order A$,$ B$,$ C$,$ D

Registers darr$$ Disassembly

ESI$=006B1005$EDI$=006B1005$EIP$=006B1042$ESP$=004FFD2$

EBP$=004FFD2CFL=0000026$

After execution: order B$,$ C$,$ D$,$ A

ESI$=006B1005$EDI$=006B1005$EIP$=006B1048$ESP$=004FFD2$

EBP$=004FFD2$EFL$=000000206$