Step 1:  Store the 8 bit value in a accumulator

Step 2:  Store 0x1 in a register0, initialize two counter  
with 0 i.e. store zero in a reg1 and reg2.

LOOP:
Step 3:  Check if AND operation between the value in
register0 and accumulator is set i.e. 1 
if yes, increment reg1 and reg2
If no, increment only reg2

step 4: Left shift the value of register0 by 1
step 5: if ( reg2 >=8), exit LOOP
                 if ( reg1 >= 3), show that 3 bit is set
        Else Go To LOOP



MOV XAR1, #Data
MOV XAR0, #0
MOV XAR2, #0

Loop:
TBIT *XAR1, #Count 
BF Loop1, NTC
INR *XAR0

Loop1:
INR *XAR2
MOV AL, *XAR1
CMP AL, #0x03
BF Loop3, EQ

MOV AL, *XAR2
CMP AL, #0x80
BF Loop, NEQ

Loop3:
EXIT