Chapter 10 Flashcards
1
Q
What is unsigned number range
A
0->65535
2
Q
What is signed number range
A
-32768->+32767
3
Q
Is -40 data is signed
A
Yes
4
Q
What are 4 shift instructions
A
- shift logical right
- shift logical left
- shift arithmetic right
- shift arithmetic left
5
Q
What are 4 rotate instructions
A
- rotate right
- rotate left
- rotate through carry right
- rotate through carry left
6
Q
What is last bit of signed bit
A
it holds its magnitude +/-, not number
7
Q
Does shift logical right and shift arithmetic right belongs to division
A
Yes
8
Q
Does dropping a zero bit can not cause any difference
A
Yes. There is no difference.
9
Q
What DD directive do
A
It reserves 32bit space in memory
10
Q
What is ADC
A
Add with carry
11
Q
Can we do extended addition, subtraction and multiplication
A
Yes
12
Q
What are bitwise logical operations
A
AND, OR, XOR, NOT
13
Q
What is masking
A
The effect of applying this operation on the destination with mask in the source is to clear the desired bits.
14
Q
How we can test bits
A
Selective bits testing
