F:\WorkDir\TEST15>SET C51TMP=F:\WorkDir\TEST15 

F:\WorkDir\TEST15>SET C51INC=C:\Keil\C51\INC\Atmel 

F:\WorkDir\TEST15>F:

F:\WorkDir\TEST15>CD\WorkDir\TEST15

F:\WorkDir\TEST15>C:\Keil\C51\BIN\c51.exe KEY4X4.C DB OE 

C51 COMPILER V6.23a - SN: K1DZP-5IUSHE
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2002

C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)

F:\WorkDir\TEST15>CD
F:\WorkDir\TEST15

F:\WorkDir\TEST15>MOVE F:\WorkDir\TEST15\KEY4X4.obj F:\WorkDir\TEST15\Debug 

F:\WorkDir\TEST15>MOVE F:\WorkDir\TEST15\KEY4X4.lst F:\WorkDir\TEST15\Debug 

F:\WorkDir\TEST15\Debug>SET C51LIB=C:\Keil\C51\LIB 

F:\WorkDir\TEST15\Debug>C:\Keil\C51\BIN\BL51.EXE @Projects.lnk 

BL51 BANKED LINKER/LOCATER V4.23 - SN: K1DZP-5IUSHE
COPYRIGHT KEIL ELEKTRONIK GmbH 1987 - 2002
KEY4X4.obj TO TEST15.omf  RAMSIZE(128)

*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
    SEGMENT: ?PR?_SETSTARTLINE?KEY4X4

*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
    SEGMENT: ?PR?_SHOWASC?KEY4X4

*** WARNING L16: UNCALLED SEGMENT, IGNORED FOR OVERLAY PROCESS
    SEGMENT: ?PR?DISPLAY_ASC?KEY4X4

Program Size: data=33.3 xdata=2 code=3523
LINK/LOCATE RUN COMPLETE.  3 WARNING(S),  0 ERROR(S)

F:\WorkDir\TEST15\Debug>CD
F:\WorkDir\TEST15\Debug