any body can post ucos source code

i am doing project about ucos, i have the port for 8051 but i can't find the source of ucos. where can i find or you can send it to me

THX

What is ucos? Are you refering to uC - OS or RTOS (Real Time OS)?
There are many open source RTOS for 8051. Check this out http://www.myke.com/51-rtos.htm

Here you'll find links to free and commercial RTOS/uC-OS
http://atlas.automatizace.cz/rtos_en.html