Assembly resources?

Anyone have any good ebooks/resources to learn Z80 Assembly? All I've been able to find are some guides for programming TI calculators, I need something that goes a bit deeper than that (for college). Never programmed ASM before, if that helps.

Thanks

Read SICP

>>1
I need something that goes a bit deeper than that
Did you mean ``less deep''?
Half of any such guide would be a complete description of Z80, and the other half is what's known about the TI hardware and OS.
There's nothing deep about assembly, especially for such a primitive CPU.

>>3
What >>1 wants is breadth (cf. hand-holding.) Not necessarily less depth.

>>1
http://www.myquest.nl/z80undocumented/z80-documented-v0.91.pdf