Hi,
I am getting a bit wierd result while i simulate the below program in MBPLAB IDE simulator.
The problem is that the PORTB pins 2 and 3 are always at 0 even when i toggle them (tried both PORTB=0xFF and LATB = 0xFF).

I have a PIC board. on this, when i toggle PORTB pins, all the pins except RB5 toggle on it (i have 2 boards both of which behave same).
To debug this issue, i tried simulating it. now i run into this problem.

I hope i am setting all SFR registers correct.(UCON, SPPCON are 0 in the SFR window)
checked the errata of 18F2455 too.
did i miss anything ?

CODE START ====
/************************************************************************
debug_rb5.c
MPLAB IDE v7.40 (running in Wine-0.9.33)
MPLAB C18 v3.02 (feature limited)
MPLINK 4.03, Linker
MP2COD 4.03, COFF to COD File Converter
MP2HEX 4.03, COFF to HEX File Converter
Device: PIC18F2455, 28 PIN SOIC
**************************************************************************/

#include <p18f2455.h>   /* for TRISB and PORTB declarations */

#define FLASH        rom

//NOTE: PORTBbits.RB5 has problems. it does not toggle on the board

extern void _startup (void);     // See c018i.c in your C18 compiler dir

#pragma code _RESET_INTERRUPT_VECTOR = 0x000800

void _reset (void)
{
    _asm goto _startup _endasm
}

#pragma code
/********************************************************************
 * Function : InitProcessor()
 * This function will contain all the PIC processor related 
 * initialisations
 ********************************************************************/
void InitProcessor(void)
{
    TRISB = 0x00;//configure PORTB for output
    PORTB = 0x00;//init it to 0

    INTCON2bits.RBPU = 1;     //pullup portB pins

    TRISC = 0x00; //configure PORTC for output
    PORTC = 0x00;
}/* InitProcessor() */


void main (void)
{
    volatile char temp;

    InitProcessor();
    temp = 0x41;

    while (1 )
    {

//    PORTB = 0x00;
//    PORTC = 0x00;
    LATB = 0x00;
    LATC = 0x00;

    temp = 0x01; //just some junk statement.

//    PORTB = 0xFF; //PORTB=0xF3, LATB = 0xFF. why is this so ?
//    PORTC = 0xFF; //PORTC=0xF7, LATC = 0xC7  ?
    LATB = 0xFF; //PORTB or LATB, same result
    LATC = 0xFF;

    temp = 0x02;
    }
}//main
CODE END ====



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