Question

Write an Assemhly Language Program to find largest number in a block of memory starting from 7000 H. The length of the block is stored at 6FFF H. Store the result at the end of the block.

Answer 1

Label	Opcode Operand	Comments
L2:	LXI H, 6FFF H	; Initialise HL pair with address 6FFF H
	MOV C, M	; block length in register C
	SUB A	; Initialise a ccumulator with OOH
	INX H	; Increment HL pair b y 1
	CMP M	; Compare the next number with acc umulator
	JNC L1	; Number in accumulator greater?
		Yes, jump L1
L1 :	MOV A, M	; No, Bring the greater number in accumulato r
	DCR C	; Decrement Count
	JNZ L2	; Count = 0 ? No jump to label L2
	INX H	; Increment HL pair b y 1
	MOV M, A	; Cop y largest number at M register
	RST 1	; Restart