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LCD Display program in C

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V

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Hello
I am using AT89c51 microcntroller and Keil compiler. when I build code I am getting error 
Code C - [expand]
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#include<reg51.h>
#define LCDPORT P1
#define RS P2_0
#define RW P2_1
#define E P2_3
bit status=0
#define lcd_delay 60
void delay(unsigned int j)
{
unsigned int i,k;
for(i=0;i<j;i++);
 
for(k=0;k<100;k++);
 
}
void _lcd_init_write(unsigned char a)
{
RS = 0;
RW = 0;
LCDPORT=a;
E=1;
delay(lcd_delay);
E=0;
}
void lcd_com(unsigned char a){
unsigned char temp;
if(status){
status=0;
goto a;
}
RS=0;
a:
RW=0;
temp=a;
temp&=0xF0;
LCDPORT&=0x0F;
LCDPORT|=temp;
E=1;
delay(lcd_delay);
E=0;
temp=a<<4;
temp&=0xF0;
LCDPORT&=0x0F;
LCDPORT|=temp;
E=1;
delay(lcd_delay);
E=0;
}
void lcd_data(unsigned char a){
status=1;
RS=1;
lcd_com(a);
}
void lcd_init(void){
delay(lcd_delay);
_lcd_init_write(0x30);
delay(lcd_delay);
_lcd_init_write(0x30);
delay(lcd_delay);
_lcd_init_write(0x30);
delay(lcd_delay);
_lcd_init_write(0x20);
delay(lcd_delay);
lcd_com(0x28);
delay(lcd_delay);
lcd_com(4);
delay(lcd_delay);
lcd_com(0x85);
delay(lcd_delay);
lcd_com(6);
delay(lcd_delay);
lcd_com(1);
delay(lcd_delay);
}
void lcd_puts(char *aaa)
{
unsigned int i=0;
for(;aaa[i]!=0;i++)lcd_data(aaa[i]);
}


Error Message
compiling display.c...
display.c(8): error C141: syntax error near 'void'
display.c(9): error C141: syntax error near '{'
display.c(11): error C141: syntax error near 'for'
display.c(11): error C141: syntax error near '=', expected ')'
display.c(11): error C129: missing ';' before '<'
display.c - 5 Error(s), 0 Warning(s).
Click to expand...

why I am getting this error. how to remove error ?
 

This type of errors occurs when you miss syntax (not putting a semicolon, putting it in the wrong place etc). So when you get this error, look for it just BEFORE the error statement, in your case before 'void'.
At first I thought about reg51.h file, but then I saw the line among the defines:
Code C - [expand]
1

bit status=0

As it's a variable definition, regular c-code, it must ends with a semicolon.

Although C allows placing #define anywhere in the code, it's a good practise to place them in the beginning, and surely not mix them with c-code. It is more readable.
And make lcd_delay with capitalized letters, again, it's more readable.
 

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