LC-3-Programmfehler?

Question

Kann mir jemand bei diesem Programm helfen? Es soll 14 zu den Zahlen bei X4000 hinzufügen und die neuen Zahlen, die in X5000 beginnen, speichern. Ich habe gerade angefangen, das LC-3 zu verwenden, aber wir haben noch nicht gelernt, tatsächlich darin zu codieren. Dieser Code hat nur 3 Fehler, aber ich bin mir nicht sicher, was ich beheben sollte.

                               ;Program to copy an array of data from one block of memory to another .
                               ;Add decimal 14 to the value of each word before storing in the destination array.
                               ;Keep copying until the program reaches a zero value in the source array.

        .ORIG    x3000         ;Program starts at address hex 3000
        LEA      R0, SRC       ;Load address of SRC into Register 0
        LD       R1, DEST      ;Load contents of memory address DEST into Register 1
LOOP    LDR      R2, R0, #0    ;Load contents of memory location whose address is in R0 into R2
        BRZ      SRC           ;If last operation was zero, branch to end
        ADD      R2, R2, #14   ;Add decimal 14 to value in R2
        STR      R2, R1, #0    ;Store contents of R2 into memory whose address is in R1
        ADD      R0, R0, #1    ;Add 1 to R0
        ADD      R1, R1, #1    ;Add 1 to R1
        BRN      LOOP          ;If last operation was negative, branch to LOOP
DONE    TRAP     x25           ;Trap to HALT the program.
SRC     .FILL    x4000         ;Address of start of source data array
DEST    .FILL    x5000         ;Address of start of destination array.
        .END

Answer 1

                               ;Program to copy an array of data from one block of memory to another .
                               ;Add decimal 14 to the value of each word before storing in the destination array.
                               ;Keep copying until the program reaches a zero value in the source array.

        .ORIG    x3000         ;Program starts at address hex 3000
        LD      R0, SRC        ;(Changed) from LEA to LD Load address of SRC into Register 0
        LD       R1, DEST      ;Load contents of memory address DEST into Register 1
LOOP    LDR      R2, R0, #0    ;Load contents of memory location whose address is in R0 into R2
        BRZ      DONE          ;(Changed) from SRC to DONE If last operation was zero, branch to end
        ADD      R2, R2, #14   ;Add decimal 14 to value in R2
        STR      R2, R1, #0    ;Store contents of R2 into memory whose address is in R1
        ADD      R0, R0, #1    ;Add 1 to R0
        ADD      R1, R1, #1    ;Add 1 to R1
        BR       LOOP          ;(Changed) from BRN to BR regardless of the condition it branches to LOOP
DONE    TRAP     x25           ;Trap to HALT the program.
SRC     .FILL    x4000         ;Address of start of source data array
DEST    .FILL    x5000         ;Address of start of destination array.
        .END