writeor

#include "aduc812.h"


#define MAXBASE 0x8

void write_max( unsigned char xdata *regnum, unsigned char val )
{
unsigned char oldDPP = DPP;

    DPP     = MAXBASE;
    *regnum = val;
    DPP     = oldDPP;
}
void writeor( unsigned char xdata *regnum, unsigned char val )
{
unsigned char oldDPP = DPP;

    DPP     = MAXBASE;
    *regnum |= val;
    DPP     = oldDPP;
}

unsigned char read_max( unsigned char xdata *regnum )
{
unsigned char oldDPP=DPP;
unsigned char val;

    DPP = MAXBASE;
    val = *regnum;
    DPP = oldDPP;

    return val;
}