1. Given the assembly language program below, run it and list the flags’ status after each instruction. PROGRAM OF(OV) SF(PL) ZF(ZR) AF(AC) PF(PE) CF(CY) 0 0 1 0 1 0 mov ax, 8h add ax, 8h sub ax, 10h add ax, 112 neg ax mov bh,6Ch add bh,95h mov al, 2 sub al, 3 2. What will be the values of the Overflow flag in the program given below? mov al,80h add al,92h ; AL = ____ , OF = _ mov al,-2 add al,+127 ; AL = , OF = _ 3. Define the following arrays: a. A byte type array named DONKEY with 3 items 45, 45h and 4Ah. b. A word type array named FIONA with 5 items 45, 45h, 444h, 4A4Bh and 44Ah. a. A double-word type array named SHREK with 5 items initialized to 0 4. Referring to the array definitions in Question 3, state the following values in the register a. MOV AL,DONKEY ;AL= b. MOV AL, DONKEY+2 ;AL= c. MOV AX, FIONA ;AX= d. MOV AX, FIONA+2 ;AX= e. MOV AX, FIONA+4 ;AX= f. MOV EAX, SHREK ;EAX= g. MOV AH,FIONA+8 ;AH= h. MOV EAX,0 MOV AX, FIONA+2 MOV SHREK, EAX ;EAX= ;AX= ;SHREK= 5. Referring to the array definitions in Question 3, write the appropriate instruction(s) to achieve the required results. a. ; BL=45h b. ; BX = 004Ah c. ; SHREK+4=00004A4Bh 6. Referring to the array definitions in Question 3, write a program to sum array DONKEY. 7. Referring to the array definitions in Question 3, write a program to sum array FIONA.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

1. Given the assembly language program below, run it and list the flags’
status after each instruction.

PROGRAM	OF(OV)	SF(PL)	ZF(ZR)	AF(AC)	PF(PE)	CF(CY)
	0	0	1	0	1	0
mov ax, 8h
add ax, 8h
sub ax, 10h
add ax, 112
neg ax
mov bh,6Ch
add bh,95h
mov al, 2
sub al, 3

2. What will be the values of the Overflow flag in the program given
below?

mov al,80h
add al,92h ; AL = ______ , OF = _____
mov al,-2
add al,+127 ; AL = ______ , OF = _____

3. Define the following arrays:

a. A byte type array named DONKEY with 3 items 45, 45h and
4Ah.

b. A word type array named FIONA with 5 items 45, 45h, 444h,
4A4Bh and 44Ah.

a. A double-word type array named SHREK with 5 items
initialized to 0

4. Referring to the array definitions in Question 3, state the following values in the register

a.	MOV AL,DONKEY	;AL=
b.	MOV AL, DONKEY+2	;AL=
c.	MOV AX, FIONA	;AX=
d.	MOV AX, FIONA+2	;AX=
e.	MOV AX, FIONA+4	;AX=
f.	MOV EAX, SHREK	;EAX=
g.	MOV AH,FIONA+8	;AH=
h.	MOV EAX,0 MOV AX, FIONA+2 MOV SHREK, EAX	;EAX= ;AX= ;SHREK=

5. Referring to the array definitions in Question 3, write the appropriate instruction(s) to achieve the required results.

a.		; BL=45h
b.		; BX = 004Ah
c.		; SHREK+4=00004A4Bh

6. Referring to the array definitions in Question 3, write a program to sum
array DONKEY.

7. Referring to the array definitions in Question 3, write a program to sum
array FIONA.

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