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I am working on a project with an 8k code space limit (Only using the internal flash of the analog devices ADuC824). I have had some success decreasing the code size by eliminating library routines such as memmove(). And I was wondering if there is any documenation that specifies what the library routine are in the output listing file (*.m51). Below is the list of library rountines currently used in my project. Some are obvious like (?C?COPY) and (?C?MEMCMP). If I know what the others are I may be able to restructure my code to eliminate them and save some space. I currently have about 300 bytes of code space left and I still have some functionality to add! Thank you. C:\KEIL\C51\LIB\C51S.LIB (?C_STARTUP) C:\KEIL\C51\LIB\C51S.LIB (?C?COPY) C:\KEIL\C51\LIB\C51S.LIB (?C?CLDPTR) C:\KEIL\C51\LIB\C51S.LIB (?C?CLDOPTR) C:\KEIL\C51\LIB\C51S.LIB (?C?CSTPTR) C:\KEIL\C51\LIB\C51S.LIB (?C?CSTOPTR) C:\KEIL\C51\LIB\C51S.LIB (?C?LMUL) C:\KEIL\C51\LIB\C51S.LIB (?C?ULDIV) C:\KEIL\C51\LIB\C51S.LIB (?C?SLDIV) C:\KEIL\C51\LIB\C51S.LIB (?C?LNEG) C:\KEIL\C51\LIB\C51S.LIB (?C?SLCMP) C:\KEIL\C51\LIB\C51S.LIB (?C?ULCMP) C:\KEIL\C51\LIB\C51S.LIB (?C?ULSHR) C:\KEIL\C51\LIB\C51S.LIB (?C?LLDPTR) C:\KEIL\C51\LIB\C51S.LIB (?C?LLDCODE0) C:\KEIL\C51\LIB\C51S.LIB (?C?LSTIDATA) C:\KEIL\C51\LIB\C51S.LIB (?C?LSTKIDATA) C:\KEIL\C51\LIB\C51S.LIB (?C?MEMCMP) C:\KEIL\C51\LIB\C51S.LIB (?C_INIT) C:\KEIL\C51\LIB\C51S.LIB (?C?LLDIDATA) C:\KEIL\C51\LIB\C51S.LIB (?C?LLDXDATA) C:\KEIL\C51\LIB\C51S.LIB (?C?LLDPDATA) C:\KEIL\C51\LIB\C51S.LIB (?C?LLDCODE)