Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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can you please fix the code to resolve the error:Oh no! You've got an error in your assembly code and meet the requirements:

  • at line 5: expected GETC instruction to have exactly 0 operands, but found 2

.ORIG x3000

; Define constants
BLANK  .FILL x0020      ; Blank character
GETC   .FILL x20B0      ; GETC trap code
PUTS   .FILL x22A0      ; PUTS trap code
HALT   .FILL x25C0      ; HALT trap code

; Define variables
ARRAY  .BLKW #20         ; Array to store user inputs
N      .FILL #0          ; Size of the array
COUNT  .FILL #0          ; Loop counter
INPUT  .FILL #0          ; User input

; Prompt message
PROMPT .STRINGZ "Enter a number (0 to 9): "

; Start of program
        LD R0, N         ; Load the size of the array into R0
        ADD R0, R0, #-1  ; Subtract 1 from the size to use as a loop counter
        ADD R0, R0, R0   ; Multiply the loop counter by 2 (each entry is 2 bytes)

LOOP    LEA R1, PROMPT   ; Load the address of the prompt message into R1
        PUTS             ; Display the prompt message

        GETC             ; Get a character from the user
        OUT              ; Echo the character

        AND R2, R2, #0   ; Clear R2 (will store the converted number)

        ADD R2, R2, R0   ; Convert ASCII digit to a number
        ADD R2, R2, #-48 ; Subtract x0030 from the ASCII digit

        LDR R3, ARRAY    ; Load the address of the array into R3

        STR R2, R3, #0   ; Store the user input into the next available memory location of the array
        ADD R3, R3, #2   ; Increment the array pointer by 2 bytes

        ADD R0, R0, #-1  ; Decrement the loop counter
        BRp LOOP         ; If the loop counter is positive, continue looping

        HALT             ; Halt the program

; End of program

.END

 

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