.text
.globl _start

_start:
    ld a0, 8(sp)
    jal ra, puts
    la a0, helloworld
    jal ra, puts
    la a0, incomingflag
    jal ra, puts


    ld t2, flagmyballs
    ror t2, t2, 01
    la t1, flagmyballs
    sd t2, 0(t1)

    la a0, flagmyballs
    jal ra, puts
    j exit

len:
    mv t0, a0
    mv t1, t0

lenloop:
    lb t2, (t1)
    beq t2, x0, lencleanup
    addi t1, t1, 1
    j lenloop

lencleanup:
    sub a0, t1, t0
    ret

puts:
    #here a0 should be the pointer to the string

    #save s2 becuase we are gonna use it
    addi sp, sp, -16
    sd s2, 12(sp)

    #save a0 because we need it later
    mv s2, a0

    #get length because the stdout systemcall needs it in a2
    addi sp, sp, -16     # Allocate stack space
    sd ra, 12(sp)        # Save return address
    jal ra, len
    ld ra, 12(sp)        # Restore return address
    addi sp, sp, 16      # Deallocate stack space
    #a0 should be the length
    mv a2, a0 #stdout expects it in a2

	li a0, 1            # file descriptor = 1 (stdout)
	li a7, 64       # syscall write (64)

    mv a1, s2   #this should still be the pointer to the text

    #restore s2 for the next guy
    ld s2, 12(sp)
    addi sp, sp, 16

    ecall

    ret

exit:
    li a0, 0            # exit code
    li a7, 93           # syscall exit
    ecall

.data
helloworld:  .asciz "Hello! It works!!!\n"
incomingflag:  .asciz "The flag you gotta fix should be right after the newline\n"
flagmyballs:
#    .dword 0x7370617263363400
    .dword 0x0343663726170730