Sirs I am trying to locate code to the top of code space. Unfortunately the linker (Keil BL51) is blocking anything above 0x9999. For example When using the directive CODE(9000H, ?PR?MAIN?LOADER(9000H)) works fine. Unfortunately anything above 9000H fails CODE(A000H, ?PR?MAIN?LOADER(A000H)) ERROR L110: CANNOT FIND SEGMENT SEGMENT: A000H Using Cygnal F020 w/ 64K flash. Thanks in advance.... Michael