text: /************************************************************************************
   * common/sdcc.h
   *
   *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
   *   Author: Gregory Nutt <gnutt@nuttx.org>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   * 3. Neither the name NuttX nor the names of its contributors may be
   *    used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
   * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   ************************************************************************************/
  
  #ifndef __ARCH_Z180_SRC_COMMON_UP_MEM_H
  #define __ARCH_Z180_SRC_COMMON_UP_MEM_H
  
  /************************************************************************************
   * Included Files
   ************************************************************************************/
  
  #include <nuttx/config.h>
  
  /************************************************************************************
   * Pre-processor Definitions
   ************************************************************************************/
  
  /* Locate the IDLE thread stack at the end of RAM. */
  
  #define CONFIG_STACK_END   CONFIG_RAM_SIZE
  #define CONFIG_STACK_BASE  (CONFIG_STACK_END - CONFIG_IDLETHREAD_STACKSIZE)
  
  /* The heap then extends from the linker determined beginning of the heap (s__HEAP).
   * to the bottom of the IDLE thread stack.  NOTE:  The symbol s__HEAP is not
   * accessible from C because it does not begin with the _ character.  g_heapbase
   * is defined in z180_head.asm to provide that value to the C code.
   */
  
  #define CONFIG_HEAP1_END   CONFIG_STACK_BASE
  #define CONFIG_HEAP1_BASE  g_heapbase
  
  /************************************************************************************
   * Public variables
   ************************************************************************************/
  
  /* This is the bottom of the heap as provided by the linker symbol s__HEAP. NOTE:
   * The symbol s__HEAP is not accessible from C because it does not begin with the _
   * character.  g_heapbase is defined in z180_head.asm to provide that value to the C
   * code.
   */
  
  extern const uint16_t g_heapbase;
  
  #endif  /* __ARCH_Z180_SRC_COMMON_UP_MEM_H */
  