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hi, im using keil ver. 2.38a, c51 compiler ver. 7.06, the cygnal 80c51f124 and i have a few questions regarding the cygnal components: 1. when debugging code larger than 32k, there seems to be a problem using step by step(F10/F11) function when reaching the functions that are placed on the upper 32k code space. the simulator cannot reach these functions it drops me out of the debugger, yet it works when using the go(F5) function. does anybody know how to overcome this problem? 2. according to the data sheet, the f124 chip has a 128k code, however the linker cannot link codes larger than 64k complaining about insufficient code space. how do i link these codes? 3. when using the locator(BL51) to relocate certain functions in a certain place on the code space, can i relocate modules instead of single functions seperately? 4. is there a way to use the trace function when debugging with an external circuit, and not with the internal simulator. 5. i would like to know if anyone encountered any problems using optimizer 9. thank you very much. Tom.