CS401-Midterm
1 / 50
After the execution of STOSW, the CX will be
2 / 50
Regarding assembler, which statement is true:
3 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
4 / 50
“Far” jump is not position relative but is _______________
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To transfer control back the RET instruction take
6 / 50
The iAPX888 architecture consists of _______ register.
7 / 50
If the address of memory location Num1 is 0117 and its content is 0005 then after execution of the instruction “ mov bx, Num1” bx will contain
8 / 50
An offset alone is not complete without
9 / 50
While using STOBS, if DF=1 then
10 / 50
REP will always
11 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen , background color of the screen will be
12 / 50
The first instruction of “COM” file must be at offset:
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_________ is one of the reasons due to which string instructions are used in 8088
14 / 50
When the operand of DIV instruction is of 16 bits then implied dividend will be of
15 / 50
In the Rotate Right Operation every bit moves one position to right and the bit dropped from the right is inserted at the left and:
16 / 50
Left-Shift-Operation the left most bit _______
17 / 50
When a 32 bit number is divided by a 16 bit number, the quotient is of
18 / 50
one Only ___________ instructions allow moving data from memory to memory.
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Each screen location corresponds to a word, the lower byte of this word contains ____
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| 0 |--›| 1 | 1 | 0 | 1 | 0 | 0 | 0 | --›| C | is a example of ______
21 / 50
One screen location corresponds to a
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The second byte in the word designated for one screen location holds
23 / 50
In STOS instruction, the implied source will always be in
24 / 50
mov ax,5 has
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After the execution of instruction “RET”
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The basic function of SCAS instruction is to
27 / 50
one DIV instruction has
28 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
29 / 50
Code Segment is associated to _______ register by default.
30 / 50
physical address of the stack is obtained by
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assembly the CX register is used normally as a ______________register.
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33 / 50
When an item is pushed on the decrementing stack, the top of the stack is
34 / 50
After the execution of “PUSH AX” statement
35 / 50
Assembly language is:
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In the word designated for one screen location, the higher address contains
37 / 50
one RET is executed, it recovers the values from
38 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
39 / 50
JC and JNC test the ____________ flag.
40 / 50
In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
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43 / 50
All the addressing mechanisms in iAPX88 return a number called _____________ address.
44 / 50
The physical address of the stack is obtained by
45 / 50
8088 is a 16bit processor with its accumulator and all registers of __________.
46 / 50
After the execution of MOVS instruction which of the following registers are updated
47 / 50
When two 16bit numbers are added the answer can be 17 bits long, this extra bit that won’t fit in the target register is placed in the where it can be used and tested
48 / 50
In assembly the CX register is used normally as a ______________register.
49 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
50 / 50
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