PIC programlama ufak bir yardım

[mahmut28]

Aşağıdaki programa 2 küçük ekleme yapmak istiyorum ama başaramadım abilerim bi el atarmısınız
-0,1,2,3 bitler çıkış
-tüm çıkışlar 0
-tüm çıkışlar 1
-0. ve 2. biti söndür
-1. ve 3. biti söndür
-2. ve 3. biti yak bekle.


HELLOWORLD

/**
*************************************************************************
* Lesson 1 - "Hello World"
*************************************************************************
* NOTE: See Low Pin Count Demo Board User's Guide for Lesson Information
*************************************************************************
*
* The LEDs are connected to input-outpins (I/O) RC0 through RC3. First, the I/O pin
* must be configured for an output. In this case, when one of these pins is driven high
* (RC0 = 1 ), the LED will turn on. These two logic levels are derived from the power pins
* of the PIC MCU. Since the PIC device?s power pin (VDD) is connected to 5V and the
* source (VSS) to ground (0V), a '1' is equivalent to 5V, and a '0' is 0V.
*
*
* This turns on DS1 LED on the Low Pin Count Demo Board.
*
* PIC: 16F1829
* Compiler: XC8 v1.10
* IDE: MPLABX v1.50
*
* Board: PICkit 3 Low Pin Count Demo Board
* Date: 6.1.2012
*
*/

#include <xc.h> //PIC hardware mapping

//config bits that are part-specific for the PIC16F1829
#pragma config FOSC=INTOSC, WDTE=OFF, PWRTE=OFF, MCLRE=OFF, CP=OFF, CPD=OFF, BOREN=ON, CLKOUTEN=OFF, IESO=OFF, FCMEN=OFF
#pragma config WRT=OFF, PLLEN=OFF, STVREN=OFF, LVP=OFF

/* -------------------LATC-----------------
* Bit#: -7---6---5---4---3---2---1---0---
* LED: ---------------|DS4|DS3|DS2|DS1|-
*-----------------------------------------
*/

//Every program needs a `main` function
void main(void) {
TRISCbits.TRISC0 = 0; //using pin as output
LATC = 0; //clear all pins to 0
LATCbits.LATC0 = 1; //turn ON the LED by writing to the latch
while(1) continue; //sit here forever doing nothing, think "while(true), continue in this loop"

[mehmet]

Tris, Port ve Lat komutlarını 0b ile başlatarak
bit halinde veya bit tanımlamasıyla yaparsanız
işler kolaylaşır.
İlgili mcu nun kataloğunda giriş ve çıkış nasıl
yapılacağı, portlara nasıl çıkış verileceği yazmaktadır.

Mesela;
LATA = 0b10101010;
ya da;
LATAbits.LATA5 = 0b0;