Where is the sys_call_table in linux version 0.01?

I am trying to add a system call to linux 0.01 and i need to edit the sys_call_table. The only instructions i've found thus far deal with adding calls to 2._ which suggest the sys_call_table is in the entry.s file in the kernel folder. However I can't find a entry.s file in in the kernel folder or anything that resembles a sys_call_table in any of the other files.