//
// General I/O support routines
//
// History: Created on May 1st by Stephane Gauthier.

// Function Name:   PrintString()
// 
// Description:     Output a character string stored in FLASH.
//
//
void PrintString(const char * s);

// Function Name:   _GetChar()
// 
// Description:     Get a character from serial port and echo it back.
//
//
unsigned char _GetChar(void);

// Function Name:   GetHexWord()
// 
// Description:     Get a Hex Word from serial port.
//
//
unsigned int GetHexWord(void);

// Function Name:   GetHexByte()
// 
// Description:     Get a Hex Byte from serial port.
//
//
unsigned char GetHexByte(void);

// Function Name:   GetHexChar()
// 
// Description:     Get a single Hex digit from serial port.
//
//
unsigned char GetHexChar(void);

// Function Name:   _GetHex()
// 
// Description:     Get the specified number of Hex digit from serial port.
//
//
unsigned int _GetHex(unsigned char digits);

// Function Name:   PutHexLong()
// 
// Description:     Format and output Long (32bits) Word to serial port.
//
//
void PutHexLong(unsigned long data);

// Function Name:   PutHexWord()
// 
// Description:     Format and output Hex Word to serial port.
//
//
void PutHexWord(unsigned int data);

// Function Name:   PutHexByte()
// 
// Description:     Format and output Hex Byte to serial port.
//
//
void PutHexByte(unsigned char data);

// Function Name:   PutHexChar()
// 
// Description:     Format and output a single Hex digit to serial port.
//
//
void PutHexChar(unsigned char data);

// Function Name:   _PutHex()
// 
// Description:     Format and output specified number of Hex byte to serial port.
//
//
void _PutHex(unsigned int data, unsigned char size);

// Function Name:   PutCRLF()
// 
// Description:     Bring terminal cursor to beginning of next line
//
//
void PutCRLF(void);

// Function Name:   GetDecWord()
// 
// Description:     Reads in a 3 digit decimal number from the serial port
//
//
unsigned int GetDecWord(void);

// Function Name:   PutDecWord()
// 
// Description:     This function will format and send a Word to the serial port in a decimal format. (eg. 0x0041 = 65)
//
//
void PutDecWord(unsigned int value);

// Function Name:   PutDecSignedByte()
// 
// Description:     This function will format and send a SIGNED BYTE to the serial port in a decimal format. (eg. 0x41 = +65)
//
//
void PutDecSignedByte(signed char value);

// Function Name:   PutDecSignedWord()
// 
// Description:     This function will format and send a SIGNED BYTE to the serial port in a decimal format. (eg. 0x41 = +65)
//
//
void PutDecSignedWord(signed int value);

// Function Name:   abs_byte()
// 
// Description: This function will return the absolute of the passed signed byte
//
//
unsigned char abs_byte(signed char x);

// Function Name:   abs_word()
// 
// Description: This function will return the absolute of the passed signed word
//
//
unsigned int abs_word(signed int x);

// Function Name:   PutBin()
// 
// Description:     This function will format and send a byte to the serial port in a binary format. (eg. 0x41 = 00100001b)
//
//
void PutBin(unsigned char value);

// Function Name:   PutDecByte()
// 
// Description:     This function will format and send a BYTE to the serial port in a decimal format. (eg. 0x41 = 65)
//
//
void PutDecByte(unsigned char value);

// Function Name:   asciify()
// 
// Description:     Convert low nibble to character. Returns ? on error.
//
//
unsigned char asciify(unsigned char value);

// Function Name:   GetDecSignedWord()
// 
// Description:     Reads in a signed 3 digit decimal number from the serial port
//
//
int GetDecSignedWord(void);