CS401-Midterm
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Which of the following options contain the set of instructions to open a window to the video memory?
2 / 50
The maximum parameters a subroutine can receive (with the help of registers) are
3 / 50
The iAPX888 architecture consists of _______ register.
4 / 50
The routine that executes in response to an INT instruction is called
5 / 50
All the addressing mechanisms iniAPX88 return a number called ______ address.
6 / 50
When an item is pushed on the decrementing stack, the top of the stack is
7 / 50
When a 16 bit number is divided by an 8 bit number, the quotient will be in
8 / 50
assembly the CX register is used normally as a ______________register.
9 / 50
When a 16 bit number is divided by an 8 bit number, the dividend will be in
10 / 50
After the execution of REP instruction CX will be decremented then which of the following flags will be affected?
11 / 50
In the instruction “CMP AX,BX” the contents of
12 / 50
_______ register holds the address of next instruction is to be executed
13 / 50
After the execution of instruction “RET 2”
14 / 50
Regarding assembler, which statement is true:
15 / 50
The first instruction of “COM” file must be at offset:
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Which bit of the attributes byte represents the red component of background color ?
17 / 50
The execution of the instruction “mov word [ES: 0], 0x0741” will print “A” on the screen, color of the character will be
18 / 50
An offset alone is not complete without
19 / 50
To convert any digit to its ASCII representation
20 / 50
_________ is one of the reasons due to which string instructions are used in 8088
21 / 50
After the execution of instruction “RET ”
22 / 50
Stack is a ______ that behaves in a first in last out manner.
23 / 50
Assembly language is:
24 / 50
25 / 50
which bit sets the character "blinking" on the screen?
26 / 50
REP will always
27 / 50
ASCII stands for ____________. The screen is two dimensional space having:
28 / 50
Left-Shift-Operation the left most bit _______
29 / 50
To transfer control back the RET instruction take
30 / 50
The second byte in the word designated for one screen location holds
31 / 50
The execution of the instruction “mov word [ES: DI], 0x0720”
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33 / 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
34 / 50
35 / 50
If we want to divide a signed number by 2, this operation can better be accomplished by
36 / 50
Only instructions allow moving data from memory to memory.
37 / 50
“Far” jump is not position relative but is _______________
38 / 50
In STOSB instruction, when DF is Set, SI is
39 / 50
In the instruction MOV AX, 5 the number of operands are
40 / 50
The physical address of the stack is obtained by
41 / 50
42 / 50
In string manipulation whenever an instruction needs a memory source, which of the following will hold the pointer to it?
43 / 50
The execution of the instruction “mov word [ES : 0], 0x0741” will print character “A” on screen, color of the character will be
44 / 50
After the execution of STOSW the CX will be
45 / 50
if ax contains decimal -2 and BX contains decimal 2 then after the execution of instructions: CMP AX, BX ,JA label
46 / 50
When a 32 bit number is divided by a 16 bit number, the quotient is of
47 / 50
Execution of the instruction “mov word [ES : 0], 0x0741” will print
48 / 50
When the operand of DIV instruction is of 16 bits then implied dividend will be of
49 / 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:
50 / 50
One screen location corresponds to a
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