No need for in-line assembler IMHO.

With a 20 MHz device, the PicBasic Pro PULSOUT [pin, value] command will
give you 2 uSec resolution which is perfect for 500 steps between 1 & 2 mSecs.
A pedestrian 4 MHz device will give 10 uSec steps which allows 100
positions between 1000 and 2000 uSecs.  4 MHz works fine in most
applications but is a bit lumpy for some higher precision applications.
A "standard" servo will resolve between 250 steps for the cheapies and 500
steps for the name brands between 1000 uS and 2000 uS with 1500 being the
centre position.  The newer "digital" servos will resolve about 1000 steps
if you need the extra resolution and can afford the price premium.

Put another way, the 'standard' servo rotates +/- 45 degrees between 1000
and 2000 uSecs.
A 4 MHz PIC using PicBasic Pro will give you 100 steps for these 90 degrees
of rotation - a little under 1 angular degree per step.
At 20 MHz, the same PIC and servo pair will give you about 90/500 degrees
per step - about 10 minutes of arc which is way better than anything but
toolmaker quality mechanical systems.

cheers
Brian

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