package void writeRegister(int aRegisterOffset, ushort aValue)
in
{
    assert(aRegisterOffset >= 0);
    assert(aRegisterOffset < IMAGE_SIZE);
}
body {
    int  idx = aRegisterOffset / 2;
    mMemCache[idx] = aValue;
    uint readback;
    uint st;
    uint st2;
    volatile {
        mMemImage[idx] = aValue;
        //readback = (cast(uint*)mMemImage.ptr)[ idx/2 ];
        //st = mMemImage[ 0x28/2 ];
        //st2 = mMemImage[ 0x2A/2 ];
    }
    //if( aValue != readback )
    {
        //debug(IRQ) writefln( "writeRegister %04x, %04x", aRegisterOffset, aValue);
    }
    // comment
}
//