MIPS jal and jr instructions

This is demonstration sample code of jal and jr MIPS instructions. Launch EzMIPS, copy the following MIPS code and paste it into EzMIPS. Assemble, Run.

# -------- demonstration of jal and jr instructions -------- #

.data
szMessage: .ascii  "- Hello world!\n- Are you ok?\n"
           .asciiz "- Yes\n- Oh, my God!\n"

.text


# ---------------------------------------------------------- #
main: 
    
    jal print           # save pc in $ra & jump to print
    jal delay           # save pc in $ra & jump to delay
    
# ---------------------------------------------------------- #
    
    li $v0, 10
    syscall             #exit the program gracefully
    
# ---------------------------------------------------------- #
print:
    
    la $a0, szMessage
    li $v0, 4
    syscall             # print string
    jr $ra              # return to caller

# ---------------------------------------------------------- #
delay:
    
    sll $zero, $zero, 0
    sll $zero, $zero, 0
    sll $zero, $zero, 0
    jr $ra              # return to caller

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

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

Regards,

Antonis