lui a0, %hi(datafile)
  addi a0, a0, %lo(datafile)
  li a1, 0 # O_RDONLY
  li a2, 0
  li a7, 1024 # open

  li a0, -100 # AT_FDCWD
  lui a1, %hi(datafile)
  addi a1, a1, %lo(datafile)
  li a2, 0 # O_RDONLY
  li a3, 0
  li a7, 56 # open

readloop:
  # Read 1024 bytes from the file
  addi a0, s2, 0
  lui a1, %hi(readbuf)
  addi a1, a1, %lo(readbuf)
  li a2, 1024
  li a7, 63 # read
  ecall

  bge zero, a0, on_eof
  # TODO parse the buffer
  j readloop

on_eof:

  li a0, 0

  addi a0, s2, 0

dfmt:
  .string "%d\n"
.section .data
  .p2align 4, 0
memroot:
  .zero 1024
readbuf:
  .zero 1024