# file:    core.s
# project: Löwe OS
# authors: Elias Löwe <elias@lowenware.com>

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

  .global _core_init
  .extern _uart_puts

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

  .text

_core_init:
  # set up stack pointer using x30 register
  LDR     x30, =0x40001000
  MOV     sp,  x30
  bl      1f

1:
  LDR     x0,  =some_int
  BL      _uart_putx
  LDR     x0,  =greeting
  BL      _uart_puts
2:
  B       2b

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

  .data

greeting:
  .asciz "\nStarting Lowe OS\n"


  .equ some_int, 0x1234567890ABCDEF

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