I am trying to write a LC-3 program that will count the number of occurrences of a char that the user inputs in a string that is hard coded. The part that I am having trouble on is testing if the two characters equal each other, and I am also having trouble moving the next character in the string to test it.

;Program to count occurrences of a char in a string

.ORIG x3000

LD R3, POSASC ;Loads R3 with #48 LD R4, NEGASC LD R1, word ;R1 = word ADD R6, R6, #5 ;Length of word GETC ;Gets the char OUT ;Prints the char ADD R2, R2, R0 ;Stores the char in R2 ;ADD R2, R2, R4 ;To ascii AND R0, R0, #0 ;set R0 back to 0 LOOP AND R5, R2, R1 ;check if char is equal ADD R1, R1, #1 ;increment to next char in word ADD R6, R6, #-1 BRnp LOOP ADD R0, R0, R5 ;Set R0 to # of occurrences OUT ;Print # of occurrences HALT POSASC .FILL x0030 ;#48 word .STRINGZ "hello" ;word to count occurrences of a char NEGASC .FILL xFFD0 ;#-48 .END