Write assembly code to perform the following operations on a stack with an initial

stack pointer value of $SP=1234h$ :

a$)$ Place the top of the stack into the $Ax$ register, changing the stack content.

b$)$ Place the word that is below the stack top into the $Cx$ register, without

changing the stack content. You may use AX$.$

c$)$ Exchange the top two words on the stack. You may use AX and BX$.$help