.data
    str1: .asciiz "Lager"
    str2: .asciiz "Regal"
    str3: .space 10
    .byte 0xff
    .byte 0xff
.text
    #convention s1 is for adresses
    ori $s0, $zero, 0x5A #0x5A Z everything above is lowercase or
    ori $s2, $zero, 0x40 #0x40 A everything below isnt a standard letter
    #int mains
main:
    la $s1, str2
    jal loadingbyte
    j finalend

loadingbyte:
    lbu $a0, ($s1) #loads byte
    j strtolower #jumps to the fucntion

strtolower: #load data into
    beqz $a0, funcstop #if byte is 00 stop programm
    #if not ment to change jump back
    blt $s0, $a0, funcend
    blt $a0, $s2, funcend

    #if uppercase addi 32 to make it lowercase
    addi $a0 ,$a0 ,32
    sb $a0, ($s1) #store changed byte
funcend:
    addi $s1, $s1, 0x01 #increasing the position in data section by 1 byte
    j loadingbyte
funcstop:
    jr $ra
finalend: