## Copyright (C) 2016 Jeremiah Orians
## This file is part of stage0.
##
## stage0 is free software: you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## stage0 is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with stage0.  If not, see <http://www.gnu.org/licenses/>.

# :start
2D22000a	# LOADUI R2 10 ; We will be using R2 for our counter
# ;; Prep TAPE_01
2D201100	# LOADUI R0 0x1100
42100000	# FOPEN_READ
# :main
# ;; Read a byte
2D211100	# LOADUI R1 0x1100
42100100	# FGETC
# ;; Check for EOF
A0100000	# CMPSKIPI.GE R0 0
3C000028	# JUMP @main_1
# ;; Write the Byte
0D000021	# FALSE R1
42100200	# FPUTC
# ;; Check for LF
A030000a	# CMPSKIPI.NE R0 10 ; Skip if not line feed
10220001	# SUBI R2 R2 1 ; Decrement on line feed
# ;; Loop if not Zero
A0220000	# CMPSKIPI.E R2 0 ; Skip if counter is zero
3C00ffdc	# JUMP @main
# ;; Otherwise provide main loop functionality
42100100	# FGETC ; Wait for key press
2D22000a	# LOADUI R2 10 ; Reset counter
3C00ffd0	# JUMP @main ; And loop
# :main_1
# ;; Close up as we are done
2D201100	# LOADUI R0 0x1100 ; Close TAPE_01
42100002	# FCLOSE
FFFFFFFF	# HALT