strcpy() implementation in MIPS

Launch EzMIPS, copy the following MIPS code and paste it into EzMIPS. Assemble, Run.

# -------------- strcpy() implementation in MIPS ------------- #

.data

str_source:  .asciiz "Hello There!\n"
str_target:  .space 20

# ------------------------------------------------------------ #

.text

# ----------- load source and target string addresses -------- #

    la $a1, str_source
    la $a0, str_target
    jal strcpy                   # call strcpy function

# ---------------------------- print ------------------------- #

    la $a0, str_target           # address of string
    li $v0, 4                    # print string
    syscall

# -------------------------- exit program -------------------- #

    li $v0, 10
    syscall

# ---------------------------- strcpy() ---------------------- #

strcpy:
    lb $t1, 0($a1)
    sb $t1, 0($a0)
    beq $t1, $zero, return
    addi $a0, $a0, 1
    addi $a1, $a1, 1
    j strcpy

return:
    jr $ra

# ------------------------------------------------------------ #

Please let me know of any suggestions or bugs regarding the code above.

Regards,

Antonis