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typedefs.h
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typedefs.h
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/*********************************************************************
*
* Microchip USB C18 Firmware Version 1.0
*
*********************************************************************
* FileName: typedefs.h
* Dependencies: See INCLUDES section below
* Processor: PIC18
* Compiler: C18 2.30.01+
* Company: Microchip Technology, Inc.
*
* Software License Agreement
*
* The software supplied herewith by Microchip Technology Incorporated
* (the “Company”) for its PICmicro® Microcontroller is intended and
* supplied to you, the Company’s customer, for use solely and
* exclusively on Microchip PICmicro Microcontroller products. The
* software is owned by the Company and/or its supplier, and is
* protected under applicable copyright laws. All rights are reserved.
* Any use in violation of the foregoing restrictions may subject the
* user to criminal sanctions under applicable laws, as well as to
* civil liability for the breach of the terms and conditions of this
* license.
*
* THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES,
* WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
* TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,
* IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
*
* Author Date Comment
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
* Rawin Rojvanit 11/19/04 Original.
********************************************************************/
#ifndef TYPEDEFS_H
#define TYPEDEFS_H
typedef unsigned char byte; // 8-bit
typedef unsigned int word; // 16-bit
typedef unsigned long dword; // 32-bit
typedef union _BYTE
{
byte _byte;
struct
{
unsigned b0:1;
unsigned b1:1;
unsigned b2:1;
unsigned b3:1;
unsigned b4:1;
unsigned b5:1;
unsigned b6:1;
unsigned b7:1;
};
} BYTE;
typedef union _WORD
{
word _word;
struct
{
byte byte0;
byte byte1;
};
struct
{
BYTE Byte0;
BYTE Byte1;
};
struct
{
BYTE LowB;
BYTE HighB;
};
struct
{
byte v[2];
};
} WORD;
#define LSB(a) ((a).v[0])
#define MSB(a) ((a).v[1])
typedef union _DWORD
{
dword _dword;
struct
{
byte byte0;
byte byte1;
byte byte2;
byte byte3;
};
struct
{
word word0;
word word1;
};
struct
{
BYTE Byte0;
BYTE Byte1;
BYTE Byte2;
BYTE Byte3;
};
struct
{
WORD Word0;
WORD Word1;
};
struct
{
byte v[4];
};
} DWORD;
#define LOWER_LSB(a) ((a).v[0])
#define LOWER_MSB(a) ((a).v[1])
#define UPPER_LSB(a) ((a).v[2])
#define UPPER_MSB(a) ((a).v[3])
typedef void(*pFunc)(void);
typedef union _POINTER
{
struct
{
byte bLow;
byte bHigh;
//byte bUpper;
};
word _word; // bLow & bHigh
//pFunc _pFunc; // Usage: ptr.pFunc(); Init: ptr.pFunc = &<Function>;
byte* bRam; // Ram byte pointer: 2 bytes pointer pointing
// to 1 byte of data
word* wRam; // Ram word poitner: 2 bytes poitner pointing
// to 2 bytes of data
rom byte* bRom; // Size depends on compiler setting
rom word* wRom;
//rom near byte* nbRom; // Near = 2 bytes pointer
//rom near word* nwRom;
//rom far byte* fbRom; // Far = 3 bytes pointer
//rom far word* fwRom;
} POINTER;
typedef enum _BOOL { FALSE = 0, TRUE } BOOL;
#define OK TRUE
#define FAIL FALSE
#endif //TYPEDEFS_H