Dear Sirs! I would like to observe data in Memory window. For example this line of code was build from the compiler: 000002F4 F2F50AA2 MOV R5,DPP2:0x220A Where content of DPP2 is '3'. Does DPP2:0x220A means ( 3 <<14) | 0x220A ? Result would be 0xE20A ?? F2F50AA2 says to me the Address 0xA20A will be read...(0x220A - 0x8000 = 0xA20A???) in the memory window of the Debugger the contents of these addresses are just 0x00!? How can I take a look at the right addresses? Please write an answer to my Question! hannes