A block of data is stored in memory location starting from C040 H. Length of the block is stored in register B. Write an Assembly language program to find the number of times (COUNT) the data AB H occurred from the given block of data and store the result at the end of the block.

What will be the output after execution of the following block of code?

What will be contents of the registers - A, B, C and the flags register, F?

S	Z	X	AC	X	P	X	CY

Memory Location	Op-Code	Labels	Mnemonics	Comments
C000 H			LXI H, C040H	;Initialize the register pair HL to memory location C040 H
C001 H	40
C002 H	C0
C003 H			MVI A, AB H	;Load the data AB H to accumulator
C004 H	AB
C005 H			MVI B, 05 H	;Set the counter for 05 numbers in register B
C006 H	05
C007 H			MVI C, 00 H	;Clear the data content of register C
C008 H	00
C009 H		UP:	CMP M	;Compare content of memory pointed by HL register pair with the data content of accumulator
C00A H			JNZ DOWN:	;If Zero flag is reset (Z= 0) then jump to memory location C00EH
C00B H	0E
C00C H	C0
C00D H			INR C	;Increment the data content of register C by 1
C00E H		DOWN:	INX H	;Increment HL register pair by 1
C00F H			DCR B	;Decrement the counter by 1
C010 H			JNZ UP:	;If counter 0 (reg. B 0 )then jump to memory location C009H.
C011 H	09
C012 H	C0
C013 H			MOV M, C	;Copy the data content of register C to memory location pointed by HL register pair
C014 H			RST 1	;Stop the execution

Answer rating: 100% (QA)

The output after execution of this assembly code will depend on the data block that starts from memory location C040 H and the count of bytes equal to ... View the full answer