Generate Up Going Sawtooth ALP

Program Name

Write a Assembly Language Program for Generate Up Going Sawtooth .

Theory

Instruction Mnemonic	Operand	Comments
MVI	A,80	Load accumulator with 80H to configure CWR of 8255.
OUT	CWR	Configure CWR to display output with accumulator value. i.e 80H
MVI	A,00	Initialize accumulator with 00H to display ongoing sawtooth from bottom of CRO screen.
OUT	PA	Send the value 00H through output port A.(which is displayed on screen as single dot).
OUT	PB	Send the value 00H through output port B (to get bright spot on CRO )
INR	A	Increment the value of accumulator to extend the ongoing sawtooth.
JMP	INCR	Jump back to display incremented value as an output.

Program Code


MVI	A,80
OUT	CWR
MVI	A,00
OUT	PA
OUT	PB
INR	A
JMP	INCR

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