A Z80 guy needs help!

Hi,

I'm a newbie on this list and I'm hoping someone will steer me the
right way. I have looked at all the posts here from a year ago to
present and I didn't see a reference to what I need so here goes.

I don't know how to program in C but I am very comfortable in Z80
assembly. I picked the Rabbit 2000 for that reason.

My application is for motion control, meaning it is interrupt driven
(1,024 per second, or about 18,000 clock cycles) and involves a lot
of fp math, up to and including transcendental functions. This
requires very tight code that is best done in assembly.

My problem is my ignorance of C programming. It seems Dynamic C does
not have a stand alone assembler / emulator. I have looked at the
SoftTools ASM2000 but it can't seem to work with my Rabbit board and
it is very unstable. My question is:

(1) Does anyone know of a good assembler / emulator for the Rabbit.

(2) If not, should I learn C so I can use the Dynamic C development
system. If I have to, I will.

(3) If it's yes to (2), can someone suggest a good tutorial or primer
for learning C.

I have a lot of Z80 assembler code I would really like to upgrade and
optimize for the Rabbit since it is so much better than what Zilog or
anyone has to offer. I just need to get from here to there in the
shortest period of time to do it.

Thanks in advance for your forebearance and advice.

Mariss