单片机c语言程序问题，请帮我看一下错在哪里

程序是从书上看来的，keil4编译的时候出现
Build target 'Target 1'
compiling Main.c...
MAIN.C(42): error C141: syntax error near '='
MAIN.C(42): error C141: syntax error near 'else'
MAIN.C(42): error C141: syntax error near '='
MAIN.C(46): error C141: syntax error near '='
MAIN.C(46): error C141: syntax error near 'else'
MAIN.C(46): error C141: syntax error near '='
…………
…………
程序是这样子的，希望各位大神能帮我找出哪里有问题

1 DelayNus 微秒级延时
2 DelayNms 毫秒级延时
3 EEPROMEnable EEPROM 使能
4 EEPROMDisable EEPROM 禁止
5 EEPROMSetAddress 设置EEPROM 地址
6 EEPROMStart EEPROM 启动触发
7 EEPROMReadByte EEPROM 读取单个字节
8 EEPROMWriteByte EEPROM 写入单个字节
9 EEPROMSectorErase EEPROM 擦除扇区
10 PortInit 端口初始化
11 main 函数主体

#include "stc.h"
#include <intrins.h>
#define NOP() _nop_()
#define HIGH 1
#define LOW 0
#define LS164_DATA(x) {if((x))P0^0=1;else P0^0=0;}
#define LS164_CLK(x) {if((x))P0^7=1;else P0^7=0;}
#define LCD1602_LINE1 0
#define LCD1602_LINE2 1
#define LCD1602_LINE1_HEAD 0x80
#define LCD1602_LINE2_HEAD 0xC0
#define LCD1602_DATA_MODE 0x38
#define LCD1602_OPEN_SCREEN 0x0C
#define LCD1602_DISP_ADDRESS 0x80
#define LCD1602_RS(x) {if((x))P0^1=1;else P0^1=0;}
#define LCD1602_RW(x) {if((x))P0^2=1;else P0^2=0;}
#define LCD1602_EN(x) {if((x))P0^3=1;else P0^3=0;}
#define LCD1602_PORT LS164Send

void DelayNus(unsigned int t)
{
unsigned int d=0;
d=t;
do
{
NOP();
}while(--d >0);
}

void LS164Send(unsigned char byte)
{
unsigned char j;
for(j=0;j<=7;j++)
{
if(byte&(1<<(7-j)))
{
LS164_DATA(HIGH);
}
else
{
LS164_DATA(LOW);
}
LS164_CLK(LOW);
LS164_CLK(HIGH);
}
}
void LCD1602WriteByte(unsigned char byte)
{
LCD1602_PORT(byte);
LCD1602_RS(HIGH);
LCD1602_RW(LOW);
LCD1602_EN(LOW);
DelayNus(50);
LCD1602_EN(HIGH);
}
void LCD1602WriteCommand(unsigned char command)
{
LCD1602_PORT(command);
LCD1602_RS(LOW);
LCD1602_RW(LOW);
LCD1602_EN(LOW);
DelayNus(50);
LCD1602_EN(HIGH);
}

void LCD1602SetXY(unsigned char x,unsigned char y)
{
unsigned char address;
if(y == LCD1602_LINE1)
{
address=LCD1602_LINE1_HEAD+x;
}
else
{address=LCD1602_LINE2_HEAD+x;
}
LCD1602WriteCommand(address);
}

void LCD1602PrintfString(unsigned char x,unsigned char y,unsigned char *s)
{
LCD1602SetXY(x,y);
while(s && *s)
{
LCD1602WriteByte(*s);
s++;
}
}
void LCD1602ClearScreen(void)
{
LCD1602WriteCommand(0x01);
DelayNus(50);
}
void LCD1602Init(void)
{
LCD1602ClearScreen();
LCD1602WriteCommand(LCD1602_DATA_MODE);//显示模式设置，设置16x2 显示，5x7 点阵，
//8 位数据接口
LCD1602WriteCommand(LCD1602_OPEN_SCREEN);//开显示
LCD1602WriteCommand(LCD1602_DISP_ADDRESS); //起始显示地址
LCD1602ClearScreen();
}

void PortInit(void)
{
P0=P1=P2=P3=0xFF;
}

void main(void)
{ unsigned char i;
P2=0xFE;
PortInit();
LCD1602Init();
LCD1602PrintfString(0,LCD1602_LINE1,"HELLOCAST");
while(1)
{
;

}
}