PIC12F509 XC8 C代码不会构建

您好，您知道PIC12F509的代码为什么不能编译吗？它是用MPLAB X IDE编写的，使用XC8C编译器编写的。所有的代码都是在端口GP4上选择一个低到高的过渡，然后等待3毫秒，然后取端口GP2高。我现在被建筑错误弄得眼花缭乱。



      以下为原文

    Hello,
Do you know why this code for PIC12F509 will not compile?
It is written in MPLAB X IDE and using XC8 C compiler.
All the code does is pick out a low to high transition on PORT GP4 and then wait 3 ms, then take PORT GP2 high.
I am festooned with build errors at the moment.

/*
* File: zapper.c
* Author:
*
* Created on 03 June 2017, 23:55
*/

//This code turns the product ON at the mains peak voltage
//It does this by using the zero crossing detector input.

//This uses PIC12F509
//MPLAB X IDE
//XC8 C compiler (free)

#define _XTAL_FREQ 4000000

#include
#include

#pragma config OSC = ExtRC // Oscillator Selection bits (external RC oscillator)
#pragma config WDT = OFF // Watchdog Timer Enable bit (WDT disabled)
#pragma config CP = OFF // Code Protection bit (Code protection off)
#pragma config MCLRE = ON // GP3/MCLR Pin Function Select bit (GP3/MCLR pin function is MCLR)

//I have not set the MCLR pin as an input because it will be noise susceptible.
//Therefore i set MCLR up as reset, but i will never use it as reset..but will
//simply tie the pin top Vdd on the PCB.

//Define output
#define FETS LATBbits.RB2;

//Define input
#define zero_x PORTBbits.RB4;

//Define actions
#define ON LATBbits.RB2 = 1 /*Turn ON FETs*/


//Declare functions which set up the microcontroller
void disable_interrupts(void); //How do this?
void disable_pullups(void); //How do this?
void setup_ports(void);


void setup_ports(void) {
    TRISB = 0b00011000;
    return;
}

//Declare variables
uint8_t count;

void main(void) {
    setup_ports();
    //10 second delay
    for (count=1;count<=100;count++) {
    __delayms(100);
    }

here:
    if {zero_x = 1} {goto here;}
here1:
    if {zero_x = 0} {goto here1;}

    //When it gets to this point, the zero crossing input has just gone high

    __delayms(3); //delay to get to the mains peak
    ON; //Turn ON FETs...at the mains peak

    while(1){;}

    return ();
}