Question

Write an Assembly Language Program to count the total number of even data bytes occurring in a block of data stored from 9201H to 920AH. Store the result (count) at the memory location 9500H.

Answer 1

Label	Mnemonics	Comment
rep:       next :	MVI C, 00H MVI B, 0AH LXI H, 9201H MOV A, M RRC JC next INR C INX H DCR B JNZ rep MOV A, C STA 9500H RST 1.0	; Clear C reg ; Set B = 0AH ; Set HL = 9201 H ; Get M to A ; Rotate A to right ; Jump, if carry to next ; Increment C ; Increment HL ; Decrement B ; Jump, if no zero to rep ; Get C to A ; Store A at 9500 H ; Restart