The interpreter resolves the pulse count into half clock cycles by comparing the binary states and in response adjusts {TAIL ~ the pulse count} by the addition or {HEAD ~ subtraction} of half a clock cycle 
The interpreter resolves the pulse count into half clock cycles by comparing the binary states and in response adjusts { TAIL ~ the pulse count } by the addition or { HEAD ~ subtraction } of half a clock cycle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH