File list (Check if you may need any files):
stc2052\AT89S2051\2051.Sch
.......\.........\2051.SchPreview
.......\.........\AT89S2051 source code\002.LST
.......\.........\.....................\002.Opt
.......\.........\.....................\002.plg
.......\.........\.....................\002.Uv2
.......\.........\.....................\002_Opt.Bak
.......\.........\.....................\002_Uv2.Bak
.......\.........\.....................\1.hex
.......\.........\.....................\1.lnp
.......\.........\.....................\1.M51
.......\.........\.....................\1.Opt
.......\.........\.....................\1.plg
.......\.........\.....................\1.Uv2
.......\.........\.....................\1_Opt.Bak
.......\.........\.....................\1_Uv2.Bak
.......\.........\.....................\89LV51.C
.......\.........\.....................\89LV51.C.bak
.......\.........\.....................\89LV51.LST
.......\.........\.....................\api.h
.......\.........\.....................\STARTUP.A51
.......\.........\.....................\STARTUP.LST
.......\.........\.....................\STARTUP.OBJ
.......\.........\.....................\Text1
.......\.........\AT89S2051 source code
.......\AT89S2051
stc2052