#ifndef __SHARED_MEMORY_H__
#define __SHARED_MEMORY_H__

// Change this conditional #defines to get a new processor address
// Address range must be within 'a' to 'z'

#ifdef PROC_A
	#define ADDRESS_SELF  'a'
#endif

#ifdef PROC_B
	#define ADDRESS_SELF  'b'
#endif

#ifdef PROC_C
	#define ADDRESS_SELF  'c'
#endif

#ifdef PROC_X
	#define ADDRESS_SELF  'x'
#endif

#ifdef PROC_Y
	#define ADDRESS_SELF  'y'
#endif

#ifdef PROC_Z
	#define ADDRESS_SELF  'z'
#endif

// The number of characters that can be read from the input prompt
// This value really just limits the size of chat messages, since
// the other commands have a fixed maximum length
#define COMMAND_BUFFER_SIZE 16
#define SHARED_MEMORY_BYTES 10

// Clear the local processor's shared memory (set it to zero)
void SharedMemory_Zero();

// Display the contents of the local processor's shared memory
void SharedMemory_View();

// Display the contents of the local memory location i
void SharedMemory_Read(unsigned char i);

// Write value to the local memory location i
void SharedMemory_Write(unsigned char i, unsigned char value);

// Display the last received message
void SharedMemory_DisplayReceive();

// Display an error message for an unrecognized command
void SharedMemory_CommandError();

// Initialize variables, serial interface, and I2C devices
// Display program name, authors, etc...
void SharedMemory_Init();

// Display help (describes command syntax)
void SharedMemory_Help();

// Give the user a prompt to enter commands and parse the commands
void SharedMemory_Input();

// Interrupt handler called from I2C when a receive has completed
void SharedMemory_Receive(unsigned char* receiveBuffer, unsigned char size);

#endif // __SHARED_MEMORY_H__