How to write a Hello World Bootloader for MIPS?

I'm learning MIPS Assembly by the book MIPS Assembly Language Programming, but my I've just started learning MIPS because I want to build a MIPS OS, but now as I can see, there isn't any documentation talking about boot and these things. Then I'm asking here for someone that have already done this to point me at the right place.

I've already have developed a simple OS in x86 Assembly

AFAIK, MIPS used a similar boot loader to the linux's loader lilo called milo, perhaps that is worth checking out first to see how is it done.

Good luck with your Mips OS... ;)

Hope this helps, Best regards, Tom.