As you know, the popq instruction modifies the stack pointer (%rsp).

.pos 0
irmovq stack,%rsp # initialize stack pointer
irmovq n, %rax
mrmovq (%rax), %rax
pushq %rax # put known value on stack
popq %rsp # either get 0x5, or 0x100
halt
.align 8
n: .quad 5
.pos 0x100
stack:

since you are writing a simulator for the y86 processor, it is important for you to know the final value of %rsp when the instruction "popq %rsp" is executed the value from memory or the incremented %rsp. in the code above, what is the value of %rsp when the halt is reached? give your answer in decimal or hex but omit the leading 0x.

Write a new lc-3 trap subroutine (i. e. a subroutine that will be invoked via the trap instruction) that will receive a numeric digit entered at the keyboard (i. e. an ascii character), echo it to the screen, and return in r0 the corresponding numeric value: so if the user types the digit '7', the character '7' will appear on the screen, but the value returned in r0 will be b0000 0000 0000 0111 (#7) you may not use any trap calls in your code - you must implement the "polling" code that interrogates the keyboard status and data registers. ; getnum_tsr ; a subroutine for obtaining a numeric value ; given ascii numeric digit input to keyboard. ; the numeric digit is echoed to the console (e. g. '7' = b0000 0000 0011 0111), ; but the value returned in r0 is the actual numeric value ; corresponding to the digit (e. g. b0000 0000 0000 0111 =