How to fix 'Error: junk at end of line, first unrecognized character 0xe2' in Assembly

Question

I am trying to write a basic arm assembly file on my raspberry pi 3 that has access to printf and scanf through the gcc compiler, but upon compiling my code I get a strange erro

Answer 1

The quotes in your code are "smart quotes" (the utf-8 sequences e2 80 9c and e2 80 9d), which isn't playing well with the assembler. Change them to be regular quotes and you should be fine.

.data
    .balign 4
    promptNum1: .asciz "Please enter some number that you want to work with"
    .balign 4
    inputNum1String: .asciz "%d"
    .balign 4
    outputString: .asciz "Your answer is %d"
    .balign 4
    return: .word 0
    .balign 4
    signPrompt: .word "What do you want the numbers to do?\n 1)add \n 2)subtract\n 3)multiply\n 4)divide"
.text
.global main
main: 
    ldr r11, addressOfReturn
    str lr, [r11]
.
.
.
    ldr r11, addressOfReturn
    ldr lr, [r11]
    bx lr

addressOfPromptNum1: .word promptNum1
addressOfInputNum1String: .word inputNum1String
addressOfOutputString: .word outputString
addressOfReturn: .word return