extern void DelayMSEC ( unsigned int k ) ;
extern void LCDWait ( void ) ;
extern void LCDClear ( void ) ;
extern void LCDHome ( void ) ;
extern void LCDShr ( void ) ;
extern void LCDShl ( void ) ;
extern void LCDEntryMode ( unsigned char mode ) ;
extern void LCDInit ( void ) ;
extern int LCDPutchar ( const int c ) ;
extern void LCDPuts ( char * ptr ) ;
extern void LCDDisplay ( char * ptr ) ;
extern void LCDCrLf ( void ) ;
extern void LCDCr ( void ) ;
extern void clrscr ( void ) ;
typedef struct sLCD {
    unsigned char iwr ;
    unsigned char dwr ;
    unsigned char ird ;
    unsigned char drd ;
    }
tLCD ;
at 0xE000 xdata tLCD LCD_demo ;
static unsigned char dd_ram_addr = 0x80 ;
void clrscr ( ) {
    LCDclear ( ) ;
    }
int putchar ( const int v ) {
    unsigned char v1 ;
    v1 = ( unsigned char ) v ;
    switch ( v1 ) {
        case '
' : LCDCrLf ( ) ;
        break ;
        case '
' : LCDCrLf ( ) ;
        break ;
        default : LCDPutchar ( v ) ;
        break ;
        }
    return ( v ) ;
    }
void DelayMSEC ( unsigned int k ) {
    unsigned int i , j ;
    for ( j = 0 ; j < k ; j ++ ) for ( i = 0 ; i <= 120 ; ) {
        i ++ ;
        }
    }
void LCDWait ( void ) {
    while ( LCD_demo . ird & 0x80 ) ;
    }
void LCDClear ( void ) {
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = 0x01 ;
    }
void LCDHome ( void ) {
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = 0x02 ;
    }
void LCDShr ( void ) {
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = 0x1c ;
    }
void LCDShl ( void ) {
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = 0x18 ;
    }
void LCDEntryMode ( unsigned char mode ) {
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = 0x04 + ( mode & 0x3 ) ;
    }
void LCDCrLf ( void ) {
    int i ;
    while ( LCD_demo . ird & 0x80 ) ;
    dd_ram_addr ^= 0x40 ;
    LCD_demo . iwr = dd_ram_addr ;
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = dd_ram_addr ;
    }
void LCDCr ( void ) {
    while ( LCD_demo . ird & 0x80 ) ;
    dd_ram_addr ^= 0x40 ;
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . iwr = dd_ram_addr ;
    }
void LCDDisplay ( char * ptr ) {
    while ( * ptr ) {
        if ( * ptr == '
' ) {
            LCDCrLf ( ) ;
            ptr ++ ;
            }
        else LCDPutchar ( * ptr ++ ) ;
        }
    }
void LCDPuts ( char * ptr ) {
    while ( * ptr ) LCDPutchar ( * ptr ++ ) ;
    }
void LCDInit ( void ) {
    DelayMSEC ( 15 ) ;
    LCD_demo . iwr = 0x38 ;
    DelayMSEC ( 10 ) ;
    LCD_demo . iwr = 0x38 ;
    DelayMSEC ( 10 ) ;
    LCD_demo . iwr = 0x38 ;
    LCDWait ( ) ;
    LCD_demo . iwr = 0x06 ;
    LCDWait ( ) ;
    LCD_demo . iwr = 0x0C ;
    LCDWait ( ) ;
    LCD_demo . iwr = 0x01 ;
    LCDWait ( ) ;
    LCD_demo . iwr = 0x80 ;
    dd_ram_addr = 0x80 ;
    }
int LCDPutchar ( const int c ) {
    while ( LCD_demo . ird & 0x80 ) ;
    LCD_demo . dwr = ( unsigned char ) c ;
    return ( c ) ;
    }