Please implement in LC$3$ assembly code

Suggested Pseudocode:

String hexString $="$F$1$ED$"$;

int length $=$ mem $[$LENGTH$]$ ;

int value $=0$;

int $i=0$;

while $($i $$ length$)\{$

int leftShifts $=4$;

while $($leftShifts $>0)\{$

value $+=$ value;

leftShifts$--$;

$\}$

if $($hexString$[$i$]>=65)\{$

value $+=$ hexString $[$i$]-55$;

$\}$ else $\{$

value $+=$ hexString$[$i$]-48$;

$\}$

i$++$;

$\}$

mem $[$mem $[$RESULTADDR$]]=$ value;

$.$orig $3000$

; ; YOUR CODE HERE

HALT

;; Do not change these values!

ASCIIDIG $.$fill $48$

ASCIICHAR $.$fill $55$

SIXTYFIVE $.$fill $65$

HEXSTRING $.$fill $5000$

LENGTH $.$fill $4$

RESULTADDR $.$fill $4000$

$.$end

$.$orig $4000$

ANSWER $.$ bl kW $1$

$.$end

; jDon't change the $.$orig statement

;;Do not change this value