nuttx/arch/z80/include/ez80/limits.h

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/****************************************************************************
* arch/z80/include/ez80/limits.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
2014-04-14 00:22:22 +02:00
#ifndef __ARCH_Z80_INCLUDE_EZ80_LIMITS_H
#define __ARCH_Z80_INCLUDE_EZ80_LIMITS_H
/****************************************************************************
* Included Files
****************************************************************************/
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define CHAR_BIT 8
#define SCHAR_MIN (-SCHAR_MAX - 1)
#define SCHAR_MAX 127
#define UCHAR_MAX 255
/* These could be different on machines where char is unsigned */
#ifdef __CHAR_UNSIGNED__
# define CHAR_MIN 0
# define CHAR_MAX UCHAR_MAX
#else
# define CHAR_MIN SCHAR_MIN
# define CHAR_MAX SCHAR_MAX
#endif
#define SHRT_MIN (-SHRT_MAX - 1)
#define SHRT_MAX 32767
#define USHRT_MAX 65535U
#define INT_MIN (-INT_MAX - 1)
#define INT_MAX 32767
#define UINT_MAX 65535U
/* These change on 32-bit and 64-bit platforms */
#define LONG_MIN (-LONG_MAX - 1)
#define LONG_MAX 2147483647L
#define ULONG_MAX 4294967295UL
/* 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
*/
#define PTR_MIN (-PTR_MAX - 1)
#ifdef CONFIG_EZ80_Z80MODE
# define PTR_MAX 32767
# define UPTR_MAX 65535U
#else
# define PTR_MAX 8388607
# define UPTR_MAX 16777215U
#endif
#ifdef __clang__
# define LLONG_MIN (-LLONG_MAX - 1)
# define LLONG_MAX 9223372036854775807LL
# define ULLONG_MAX 18446744073709551615ULL
#endif
#if !defined(__WCHAR_TYPE__)
# define WCHAR_MIN INT_MIN
# define WCHAR_MAX INT_MAX
#elif defined(__WCHAR_UNSIGNED__)
# define WCHAR_MIN 0
# define WCHAR_MAX __WCHAR_MAX__
#else
# define WCHAR_MIN (-__WCHAR_MAX__ - 1)
# define WCHAR_MAX __WCHAR_MAX__
#endif
#endif /* __ARCH_Z80_INCLUDE_EZ80_LIMITS_H */