Incorrect high value for PIC16F84

#include <system.h>

const char led[6] = { 1, 2, 4, 8, 16, 32 };

void delay( void )
{
    char i = 0, j;
    while( i++ < 5 )
    {
        j = 0;
        while( j++ < 2 )
        {
            nop();
        }
    }
}

main()
{
    disable_interrupt( GIE );
    trisb = 0;

    set_tris_b(0x00);

    char i = 0;
    while( 1 )
    {
		output_port_b( 0x00 );
		portb = 0x00;    
    }
}