Hi to all i´m using a external 6264 ram with a 8052, i have a data in 0x001F and 0x0022 positions, when the 001F equals (00) i need to add the value from the 0022 position to 001F to build the function according with this change. However i can´t find the properly example to do this i appreciatte any guidance about this. thanks in advance. Best Regards Brainless