Design a circuit to detect when 3 and only 3 bits are set
out of 8 bits.(eg. o0101100)
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Answer Posted / gautam
I have modified it a bit,
MOVL XAR1, #Data
MOVL XAR0, #0x00
MOVL XAR2, #0x00
Loop:
TBIT *XAR1,#XAR2
BF Loop1, NTC
INR AR0
Loop1:
INR AR2
MOV AL, *XAR0
CMP AL, @0x03
BF Action, EQ
MOV AL, *XAR2
CMP AL, @0x08
BF Loop, NEQ
Loop3:
EXIT
Action:
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