square:
        addi    sp,sp,-32
        sd      ra,24(sp)
        sd      s0,16(sp)
        addi    s0,sp,32
        mv      a5,a0
        sw      a5,-20(s0)
        lw      a5,-20(s0)
        mulw    a5,a5,a5
        sext.w  a5,a5
        mv      a0,a5
        ld      ra,24(sp)
        ld      s0,16(sp)
        addi    sp,sp,32
        jr      ra
.LC0:
        .string "%d\n"
main:
        addi    sp,sp,-16
        sd      ra,8(sp)
        sd      s0,0(sp)
        addi    s0,sp,16
        li      a0,2
        call    square
        mv      a5,a0
        mv      a1,a5
        lui     a5,%hi(.LC0)
        addi    a0,a5,%lo(.LC0)
        call    printf
        li      a5,0
        mv      a0,a5
        ld      ra,8(sp)
        ld      s0,0(sp)
        addi    sp,sp,16
        jr      ra