C51 : What problem with my code using 8051 microcontroller (AT89S52)

I want to ask. I use keil compiler. When I compiler the code, the software give warning and error. This is the warning and error.. How can I fix the error??

The question is, if i burn this code into pic, is it the pic working well with the code and not counter with problem? Please can anybody help me??

[code]
Build target 'Target 1'
linking...
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL SYMBOL: _DELAY MODULE: Project.obj (PROJECT)
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL SYMBOL: _MSGDISPLAY MODULE: Project.obj (PROJECT)
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL SYMBOL: LCD_INIT MODULE: Project.obj (PROJECT)
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL SYMBOL: _LCDDATA MODULE: Project.obj (PROJECT)
*** WARNING L1: UNRESOLVED EXTERNAL SYMBOL SYMBOL: _LCDCMD MODULE: Project.obj (PROJECT)
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: LCD_INIT MODULE: Project.obj (PROJECT) ADDRESS: 0805H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDCMD MODULE: Project.obj (PROJECT) ADDRESS: 080AH
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _MSGDISPLAY MODULE: Project.obj (PROJECT) ADDRESS: 0813H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDCMD MODULE: Project.obj (PROJECT) ADDRESS: 0818H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _MSGDISPLAY MODULE: Project.obj (PROJECT) ADDRESS: 0821H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDCMD MODULE: Project.obj (PROJECT) ADDRESS: 082DH
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 083CH
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0845H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0854H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0863H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 086FH
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0889H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDCMD MODULE: Project.obj (PROJECT) ADDRESS: 088EH
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDDATA MODULE: Project.obj (PROJECT) ADDRESS: 094FH
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0956H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDDATA MODULE: Project.obj (PROJECT) ADDRESS: 0960H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0967H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _LCDDATA MODULE: Project.obj (PROJECT) ADDRESS: 0971H
*** WARNING L2: REFERENCE MADE TO UNRESOLVED EXTERNAL SYMBOL: _DELAY MODULE: Project.obj (PROJECT) ADDRESS: 0978H
Program Size: data=15.0 xdata=0 code=407
"Project" - 0 Error(s), 24 Warning(s).
[/code]

This is my code.

[code]
#include<reg51.h>
#include"lcddisplay.h"
#include<intrins.h>
sbit rd = P2^0;
sbit wr = P2^1;
sbit intr = P2^2;
sbit finger = P2^5;
sbit buz = P2^3;
#define adcdata P3
void convert(unsigned char );
void lcd_init(void);
void lcdcmd(unsigned char value);
void msgdisplay (unsigned char*);
void delay(int);
void lcddata(unsigned char );
unsigned char a,pp=0,count=0,i;
void main()
{ buz=0;
finger=1;
lcd_init();
lcdcmd(0x85);
msgdisplay("WELCOME");
lcdcmd(0x01);
msgdisplay("temp hbeat");
rd=1;
intr=1;
adcdata=0xff;
while(1)
{ lcdcmd(0xc2);
//delay(500);
wr=0;
_nop_();
_nop_();
_nop_();
_nop_();
wr=1;
delay(50);
rd=0;
delay(10);
a=adcdata;
convert(a);
delay(500);
for(i=0;i<100;i++)
{ count+=1;
if(finger==0)
{ delay(1000);
if(!finger)
{ buz=1;
delay(500);
pp=1;
buz=0;
break;
} else
pp=0;
} }
delay(500);
lcdcmd(0xca);
if(pp)
{ convert(count);
} else
convert(0);
pp=0;
} }
void convert(unsigned char temp_value)
{ unsigned char value,d1,d2,d3;
temp_value = temp_value;
value=temp_value/10;
d3=temp_value%10;
d1=value/10;
d2=value%10;
d1=d1+0x30;
lcddata(d1);
delay(10);
d2=d2+0x30;
lcddata(d2);
delay(4);
// msgdisplay(".");
d3=d3+0x30;
lcddata(d3);
delay(10);
}

#include<reg51.h>
#include"lcddisplay.h"
#include<intrins.h>
sbit rd = P2^0;
sbit wr = P2^1;
sbit intr = P2^2;
sbit finger = P2^5;
sbit buz = P2^3;
#define adcdata P3
void convert(unsigned char );
void lcd_init(void);
void lcdcmd(unsigned char value);
void msgdisplay (unsigned char*);
void delay(int);
void lcddata(unsigned char );
unsigned char a,pp=0,count=0,i;
void main()
{ buz=0;
finger=1;
lcd_init();
lcdcmd(0x85);
msgdisplay("WELCOME");
lcdcmd(0x01);
msgdisplay("temp hbeat");
rd=1;
intr=1;
adcdata=0xff;
while(1)
{ lcdcmd(0xc2);
//delay(500);
wr=0;
_nop_();
_nop_();
_nop_();
_nop_();
wr=1;
delay(50);
rd=0;
delay(10);
a=adcdata;
convert(a);
delay(500);
for(i=0;i<100;i++)
{ count+=1;
if(finger==0)
{ delay(1000);
if(!finger)
{ buz=1;
delay(500);
pp=1;
buz=0;
break;
} else
pp=0;
} }
delay(500);
lcdcmd(0xca);
if(pp)
{ convert(count);
} else
convert(0);
pp=0;
} }
void convert(unsigned char temp_value)
{ unsigned char value,d1,d2,d3;
temp_value = temp_value;
value=temp_value/10;
d3=temp_value%10;
d1=value/10;
d2=value%10;
d1=d1+0x30;
lcddata(d1);
delay(10);
d2=d2+0x30;
lcddata(d2);
delay(4);
// msgdisplay(".");
d3=d3+0x30;
lcddata(d3);
delay(10);
}