Problem calculator program

Hello,

I have a big problem with programming for Board MCB2300 and Micro LPC2388.

I want to design a calculator and this is my code :

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#include <lpc23xx.h>
#include <stdio.h>
// Alphanumeric LCD Module functions
#include <alcd.h>

// Declare your global variables here

int row[4]={0xfe,0xfd,0xfb,0xf7},num1=0,num2=0;
char buffer[16];
bit flag2=0;
bit flag=0;
void setNum(int n);
void sum();
void mul();
void dev();
void sub();

void main(void)
{ int i=0,mode=0;

// Declare your local variables here

// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;

// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTB=0x00;
DDRB=0x00;

// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=Out Func2=Out Func1=Out Func0=Out
// State7=T State6=T State5=T State4=T State3=0 State2=0 State1=0 State0=0
PORTC=0xff;
DDRC=0x0F;

// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;

// USART initialization
// USART disabled
UCSRB=0x00;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;

// ADC initialization
// ADC disabled
ADCSRA=0x00;

// SPI initialization
// SPI disabled
SPCR=0x00;

// TWI initialization
// TWI disabled
TWCR=0x00;

// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTA Bit 0
// RD - PORTA Bit 1
// EN - PORTA Bit 2
// D4 - PORTA Bit 4
// D5 - PORTA Bit 5
// D6 - PORTA Bit 6
// D7 - PORTA Bit 7
// Characters/line: 16
lcd_init(16);

while (1) { // Place your code here for(i=0;i<4;i++) { PORTC=row[i]; if(i==0) { if(PINC.4==0) { while(PINC.4==0) {} lcd_putchar('7'); setNum(7); } if(PINC.5==0) { while(PINC.5==0) {} lcd_putchar('8'); setNum(8); } if(PINC.6==0) { while(PINC.6==0) {} lcd_putchar('9'); setNum(9); } if(PINC.7==0) { while(PINC.7==0) {} if(flag==0 || flag2==1) { flag=1; lcd_putchar('/'); flag2=0; mode=1; } } } else { if(i==1) { if(PINC.4==0) { while(PINC.4==0) {} lcd_putchar('4'); setNum(4); } if(PINC.5==0) { while(PINC.5==0) {} lcd_putchar('5'); setNum(5); } if(PINC.6==0) { while(PINC.6==0) {} lcd_putchar('6'); setNum(6); } if(PINC.7==0) { while(PINC.7==0) {} if(flag==0 || flag2==1) { flag=1; flag2=0; lcd_putchar('*'); mode=2; } } } else { if(i==2) { if(PINC.4==0) { while(PINC.4==0) {} lcd_putchar('1'); setNum(1); } if(PINC.5==0) { while(PINC.5==0) {} lcd_putchar('2'); setNum(2); } if(PINC.6==0) { while(PINC.6==0) {} lcd_putchar('3'); setNum(3); } if(PINC.7==0) { while(PINC.7==0) {} if(flag==0 || flag2==1) { flag=1; flag2=0; lcd_putchar('-'); mode=3; } } } else { if(i==3) { if(PINC.4==0) { while(PINC.4==0) {} num1=0; num2=0; flag=0; flag2=0; lcd_clear(); } if(PINC.5==0) { while(PINC.5==0) {} lcd_putchar('0'); setNum(0); } if(PINC.6==0) { while(PINC.6==0) {} switch(mode) { case 1: { dev(); break; } case 2: { mul(); break; } case 3: { sub(); break; } case 4: { sum(); break; } } } if(PINC.7==0) { while(PINC.7==0) {} if(flag==0 || flag2==1) { flag=1; flag2=0; lcd_putchar('+'); mode=4; } } } } } }

} }
}

void setNum(int n)
{

if(flag==1) { num2=(num2)*10; num2+=n; } else if(flag==0) { num1=(num1)*10; num1+=n; }
}

void sum()
{ int answer=num1+num2; num1=answer; num2=0; lcd_clear(); sprintf(buffer,"%d",answer); lcd_puts(buffer); flag2=1;
}

void mul()
{ int answer=num1*num2; num2=0; num1=answer; lcd_clear(); sprintf(buffer,"%d",answer); lcd_puts(buffer); flag2=1;
}

void dev()
{ int answer=num1/num2; num2=0; lcd_clear(); num1=answer; sprintf(buffer,"%d",answer); lcd_puts(buffer); flag2=1;
}

void sub()
{ int answer=num1-num2; num1=answer; num2=0; lcd_clear(); sprintf(buffer,"%d",answer); lcd_puts(buffer); flag2=1;
}

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I have errors about afx and lcd ,When I compile it.

Can you please help me?
what do I need?

Please correct this Cod for me.
I want to use the Keypad.

Thank You