90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
/************************************************************************************
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* arch/z80/src/ez80/up_mem.h
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* arch/z80/src/chip/up_mem.h
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*
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* Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __ARCH_Z80_SRC_EZ80_UP_MEM_H
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#define __ARCH_Z80_SRC_EZ80_UP_MEM_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <stdint.h>
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* For the ZiLOG ZDS-II toolchain(s), the heap will be set using linker-
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* defined values:
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*
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* _heapbot : set to the last used address + 1 in RAM
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* _stack : set to the highest address + 1 in RAM
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*
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* The top of the heap is then determined by the amount of stack setaside
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* in the NuttX configuration file
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*/
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#ifndef CONFIG_HEAP1_BASE
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extern unsigned long _heapbot;
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# define CONFIG_HEAP1_BASE ((uint24_t)&_heapbot)
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#endif
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#ifndef CONFIG_HEAP1_END
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extern unsigned long _stack;
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# define CONFIG_HEAP1_END (((uint24_t)&_stack) - CONFIG_IDLETHREAD_STACKSIZE)
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#endif
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/************************************************************************************
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* Public Function Prototypes
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif
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#endif /* __ARCH_Z80_SRC_EZ80_UP_MEM_H */
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