//
//  Viewer.h
//
//
// PIC CHIP: 16C74
//
#define HEX_DUMP_BK0_START	0x20
#define HEX_DUMP_BK0_END	0x7F

#define HEX_DUMP_BK1_START	0xA0
#define HEX_DUMP_BK1_END	0xFF


//== Macros =========================================================

#ifndef TRUE
#define TRUE    1
#endif

#ifndef FALSE
#define FALSE   0
#endif

#ifndef NULL
#define NULL 0
#endif

#ifndef STDCALL
#define STDCALL
#endif

#ifndef Max
#define Max(a,b) ((a) > (b) ? (a) : (b))
#endif

#ifndef Min
#define Min(a,b) ((a) < (b) ? (a) : (b))
#endif

#ifndef ABS_VAL
#define ABS_VAL(a) ((a) < 0 ? (-(a)) : (a))
#endif


//== Interface Constants ============================================
//
// keypress codes
#define ESC             27
#define ENTER 		13
#define PAGE_DN         81
#define PAGE_UP         73
#define LEFT_ARROW	75
#define UP_ARROW	72
#define RIGHT_ARROW     77
#define DOWN_ARROW	80
#define KEY_F1		59


#define FRAME_HEIGHT  16
#define FRAME_WIDTH   79

//== Functions ============================================================
#define MAX_NUM_SYMBOLS		255
#define MAX_SYMBOL_LENGTH	64
#define MAX_FILENAME_LENGTH	128

#define BANK_0_END	0x7F

//
//  name - list of symbols by name (ordered as read from map file)
//  address - address assigned to the given symbol
//  length - calculated length for the given symbol
//
typedef struct {
   int  address;
   int  length;
   char name[ MAX_SYMBOL_LENGTH ];
} Symbol;

extern Symbol Variables[ MAX_NUM_SYMBOLS ];
extern int    OnChipData[ 256 ];

// display updating functions
int  STDCALL Display_Init( void );
void STDCALL Display_Frame( int x, int y, int width, int height );
void STDCALL Display_Frame_Line( void );
void STDCALL Display_Message( char *msg );
void STDCALL Display_Reset( void );
int  STDCALL Display_Get_Key( char *key_str );
void STDCALL Display_String( char *dataStr, int row, int col );
void STDCALL Display_Data( int data, int length, int row, int col );

#define SHOW_FIRST_ROW  	2
#define SHOW_LAST_ROW   	16
#define SHOW_NUMBER_ROWS	( SHOW_LAST_ROW - SHOW_FIRST_ROW )
#define SHOW_NAMES_PER_PAGE	( (SHOW_NUMBER_ROWS + 1 ) * 2 )

int MapLoadFile( char *mapFileName, int sortedBy );

void Show_Data( int varStart, int varEnd, int hexBank );
void Show_Names( int *varStart, int *varEnd );

void InitUSART( int Port );
void TxData( int data );
int RxFlush( void );
int RxData( void );