8085 Microprocessor Assembly Language Program To Find Largest And Smallest

Aim

To write a 8085 ALP to find largest and smallest of n 8 bit numbers

Program

Address	Mnemonics	Opcode	LSB	MSB	Comments
2000	LDA 2500	3A	0	25	Load accumulator with count
2003	MOV C,A	4F			Copy count to register c
2004	LXI H,2501	21	01	25	Load first number's address in HL pair
2007	MOV A,M	7E			Copy first accumulator
2008	MOV B,A	47			Copy first number to register B
2009	MOV D,A	57			Copy first number to register D
200A	DCR C	0D			Decrement limit
200B	INX H	23			Take next number in HL pair
200C	MOV A,M	7E			Copy next number to accumulator
200D	CMP B	B8			Compare the number with accumulator
200E	JNC 2012	D2	12	20	If new number is larger jump to 2012
2011	MOV B,A	47			If number is smaller set it as smaller
2012	CMP D	BA			Compare number with register D
2013	JC 2017	DA	17	20	Jump to 2017 if new number is not larger
2017	DCR C	0D			Decrement count by 1
2018	JNZ 200B	C2	0B	20	Check limit reached or not
201B	MOV A,B	78			Copy smallest number to accumulator
201C	STA 27F4	32	F4	27	Store smallest value
201F	MOV A,D	7A			Copy largest value to accumulator
2020	STA 27F5	32	F5	27	Store largest value
2023	CALL 06E3	CD	E3	6	Call subroutine
2026	HLT	76			End