Consider the following ARM assembly code segment.$$

a$.$ Accurately comment each line of code$$

b$.$ Describe what parameters r$0$ and r$1($passed into the function$)$ are used for.$$ c$.$ What are each of the local variables r$4-$r$8$ used for?$$

d$.$ What is the purpose of this function?$$

e$.$ Explain in detail the specific purpose of $$stmfd$$ and $$ldmfd$$ in this function.$$

$.$globl $\_$MyFunc$$

$.$text$$

$\_$MyFunc:$$

stmfd sp$!,\{$r$4,$ r$5,$ r$6,$ r$7,$ r$8,$ lr$\}$

cmp r$1,$ #$1$

ble end$\_$outer$$

sub r$5,$ r$1,$ #$1$

mov r$4,$ r$0$

mov r$6,$ #$0$

loop$\_$start:$$

ldr r$7,[$r$4],4$

ldr r$8,[$r$4]$

cmp r$7,$ r$8$

ble no$\_$go$$

mov r$6,$ #$1$

sub r$4,$ r$4,4$

swp r$8,$ r$8,[$r$4]$

str r$8,[$r$4,4]!$

no$\_$go:$$

subs r$5,$ r$5,$ #$1$

bne loop$\_$start$$

end$\_$inner:$$

cmp r$6,$ #$0$

beq end$\_$outer$$

mov r$6,$ #$0$

mov r$4,$ r$0$

sub r$5,$ r$1,$ #$1$

b loop$\_$start$$

end$\_$outer:$$

ldmfd sp$!,\{$r$4,$ r$5,$ r$6,$ r$7,$ r$8,$ pc$\}$