Explain gsc

[Zandis]

Please anybody, who knows gsc programming help me.
I need simple script, that prints on screen my given bitmap when I call it.
I need it for learning gsc programming.

And please explain me what means this:
Code = B51F2001F000F8002800D0012100E00021012001F000F80020002154F000F800BD1F

Thanx and best regards.