/**************************************************************************** * arch/z80/include/ez80/limits.h * * Copyright (C) 2007-2009 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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_Z80_INCLUDE_EZ80_LIMITS_H #define __ARCH_Z80_INCLUDE_EZ80_LIMITS_H /**************************************************************************** * Included Files ****************************************************************************/ /**************************************************************************** * Definitions ****************************************************************************/ #define CHAR_BIT 8 #define SCHAR_MIN 0x80 #define SCHAR_MAX 0x7f #define UCHAR_MAX 0xff /* These could be different on machines where char is unsigned */ #define CHAR_MIN SCHAR_MIN #define CHAR_MAX SCHAR_MAX #define SHRT_MIN 0x8000 #define SHRT_MAX 0x7fff #define USHRT_MAX 0xffff #define INT_MIN 0x8000 #define INT_MAX 0x7fff #define UINT_MAX 0xffff /* These change on 32-bit and 64-bit platforms */ #define LONG_MAX 0x80000000 #define LONG_MIN 0x7fffffff #define ULONG_MAX 0xffffffff /* A pointer is 2 or 3 bytes, depending upon if the ez80 is in z80 * compatibility mode or not * * Z80 mode - 16 bits * ADL mode - 24 bits */ #ifdef CONFIG_EZ80_Z80MODE #define PTR_MIN 0x0000 #define PTR_MAX 0xffff #else #define PTR_MIN 0x000000 #define PTR_MAX 0xffffff #endif #endif /* __ARCH_Z80_INCLUDE_EZ80_LIMITS_H */