Count number of 1 s in 8 bit number ALP

Program Name

Write a Assembly Language Program for Count number of 1 s in 8 bit number.

Theory

Instruction Mnemonic	Operand	Comments
MVI	C,08	Move 08 to register C as this act as a loop for rotating 8 times
LDA	8100	Loading the contents of 8100 to accumulator to perform given task
MVI	B,00	Move 00 to reg. B, it acts as a counter to perform rotation 8 times
RAL		Rotating accumulator from left 8 times till JNZ becomes false
JNC	Fwd	Jumping to DCR if the carry flag if zero
INR	B	Incrementing value of reg. B by 1 as it has to execute only 8 times
DCR	C	Decrementing reg. C
JNZ	Bk	Jumping back to RAL if condition is not zero to perform rotation
MOV	A,B	Move the contents of reg. B to accumulator
STA	8200	Store content of accumulator to memory 8200 for displaying result
HLT		Stop

Program Code


MVI	C,08
LDA	8100
MVI	B,00
RAL	
JNC	Fwd
INR	B
DCR	C
JNZ	Bk
MOV	A,B
STA	8200
HLT

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