Question

Consider a block of memory locations beginning D600 H to D60F H. Write an assembly language program to find first occurrence of data byte A2 H, found HL pair must contain 0000H.

Answer 1

Label	Mnemonics code	Comments
	MVI A, A2H	; Load A2H in A immd.
	MVI B, 10 H	; MOV 10 H in B immd.
	LXI H, D600H	; Load D600H in HL pair
Loop:	CMP M	; Compare A with M
	JZ END	; Jump on Zero
	INX H	; Increment HL pair
	DCR B	; decrement B by 1
	JNZ Loop	; Jump on no zero
	LXI H, 0000H	; Load 0000H in HL pair
End:	HLT	; Halt process
		;
		;