I could not make the screen01 work on my Raspberry Pi 2B, help

[afreecoder-zz]

I had a Raspberry Pi 2B, and I followed the baking-pi lessons to learn about the Raspberry pi, but now
I could not make the screen show the colors, it was just keep black.
Who has the right code, please give one copy or give a website link. Thanks.
My mail is changshq@gmail.com
I used Arch Linux for Raspberry Pi 2B.

check issue #9 Lesson 6 Screen01 InitialiseFrameBuffer function should use r4 to store fbInfoAddr #9

#9