help in calculation with given code

hi,all i have unipolar stepper motor with step angle 1.8 i use the following code to rotate it in full step mode (4 sequence)

mov a,#66h
mov dptr,#portc
mov r7,#4h
N91:mov r6,#29h
begin3:movx @dptr,a
rr a
acall delay2
djnz r6,begin3
djnz r7,N91

where delay2 represent delay=23.911ms how i can calculate the following parameters:

(i know resolution=360/1.8=200 step/revolution)

1. pulse frquency resolution(n)=1.8*f/360=?where f:stepping frquency(pulse rate)=?
2. motor speed?
3. number of pulses required to move shaft through 54 degree?
4. revolution/minute (rpm)?
5. steps/second(pulse/second)=(rpm*200)/60=?

how i can know number of phases and number of stator or rotor teeth if i have no data sheet i take the motor from dot matrix printer thanks in advance for help, suggestion,guiding