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  ;;
  ;;  spreadspace pic utils
  ;;
  ;;
  ;;  Copyright (C) 2011-2013 Christian Pointner <equinox@spreadspace.org>
  ;;
  ;;  This file is part of spreadspace pic utils.
  ;;
  ;;  spreadspace pic utils 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
  ;;  any later version.
  ;;
  ;;  spreadspace pic utils 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 spreadspace pic utils. If not, see <http://www.gnu.org/licenses/>.
  ;;

  ;; ERROR codes
E_OK            EQU       .0
E_INV_CMD       EQU       .1
E_BAD_CSUM      EQU       .2
E_NOT_IMPL      EQU       .3
E_FLASH_WERR    EQU       .4
E_ADDR_INVALID  EQU       .5
E_ADDR_PROHIB   EQU       .6
E_VALUE_OOB     EQU       .7

  ;; CMD codes
CMD_INVALID     EQU       .0

CMD_IDENTIFY    EQU       .1
CMD_BOOT        EQU       .2
CMD_RESET       EQU       .3
CMD_R_FLASH     EQU       .4
CMD_W_FLASH     EQU       .5
CMD_R_EEPROM    EQU       .6
CMD_W_EEPROM    EQU       .7
CMD_R_CONFIG    EQU       .8
CMD_W_CONFIG    EQU       .9

CMD_MAX         EQU       .9
CMD_MIN_LEN     EQU       .3

  ;; Flags
#define F_CMD_STARTED     flags,0