Chapter 11 & 12

Question 1

Text-oriented Console Functions

Answer 1

Read character streams from input buffer

Write character streams from input buffer

Redirect I/O

Question 2

Event-oriented Console Functions

Answer 2

Retrieve keyboard and mouse events

Detect user interactions with console window

Control window size, position, text colors

Question 3

API

Answer 3

Application Programming Interface

• collection of types, constants, and functions

Question 4

SDK

Answer 4

Software Development Kit

• collection of tools, libraries, sample code, and documentation

Question 5

Handle

Answer 5

Unsigned 32-bit integer

Question 6

Win32 Console Programs

Answer 6

Run in protected mode

Emulate MS-DOS

Question 7

Console Input Buffer

Answer 7

Contain queue of input records, each containing data about an input event

Question 8

Console Screen Buffer

Answer 8

Two-dimensional array of character and color data that affects the appearance of text in the console window

Question 9

GetStdHandle

Answer 9

Returns a handle to a console stream

• handle returned to EAX

Question 10

WinMain Procedure

Answer 10

Start up procedure for windows application

Question 11

WinProc

Answer 11

Retrieves and processes all event messages relating to a window

Question 12

Dynamic Memory Allocation

Answer 12

AKA heap allocation

- reserving memory at runtime for objects

Question 13

Segments

Answer 13

Variable-sized areas of memory used by a program containing code/data

Question 14

Segmentation

Answer 14

Provides a way to isolate memory segments from each other

Lets programs run without interfering with each other

Question 15

Logical Address

Answer 15

Combination of a segment selector and a 32-bit offset

Question 16

Translating Addresses

Answer 16

Step 1: combines a segment value with a variable’s offset to creates linear address

Step 2 (optional): page translation

Question 17

Paging

Answer 17

Makes it possible for a computer to run a combination of programs that would otherwise not fit into memory

Question 18

Pages

Answer 18

Small units of memory (programs are divided into these w/paging)

Question 19

Page Translation

Answer 19

CPU converts the linear address into a physical address

Question 20

Page Fault

Answer 20

Occurs when a needed page is not in memory

Question 21

Single-Precision IEEE FP Binary Reals

Answer 21

32-bits:

• 1 bit for the sign
• 8 bits for the exponent
• 23 bits for the significand

Question 22

Double-Precision IEEE FP Binary Reals

Answer 22

64-bits:

• 1 bit for the sign
• 11 bits for the exponent
• 52 bits for the significand

Question 23

Double Extended Precision IEEE FP Binary Reals

Answer 23

80-bits:

• 1 bit for the sign
• 16 bits for the exponent
• 63 bits for the fractional part of the significand

Question 24

Exponent

Answer 24

Unsigned integer

• integer bias (127 for single precision)
• Add 127 to actual exponent to produce biased exponent

Question 25

Unnormalized

Answer 25

Shift binary point until exponent is zero

Question 26

NaN

Answer 26

Not a number

- Types: quiet, signaling

Question 27

FPU Register Stack

Answer 27

8 individually addressable 80-bit data registers named R0-R7

Question 28

Opcode Register

Answer 28

Stores opcode of last noncontrol instruction executed

Question 29

Control Register

Answer 29

Controls precision and rounding method for calculations

Question 30

Status Register

Answer 30

Top of stack ptr, condition codes, exception warnings

Question 31

Tag Register

Answer 31

Indicates content type of each register in the register stack

Question 32

FP Exceptions

Answer 32

• Invalid operation
• Divide by zero
• Denormalized operand
• Numeric overflow
• Inexact precision

Question 33

FPU Instruction Set

Answer 33

Instruction mnemonics begin with F

2nd letter identifies data type of memory operand

• B = BCD
• I = integer
• No letter: FP

Question 34

FLD

Answer 34

Load FP value

- copies FP from memory into the top of the FPU stack, ST(0)

Question 35

FST and FSTP

Answer 35

Store FP value
- copies FP from the top of the FPU stack into memory

FSTP does the same, then pops

Question 36

FCHS

Answer 36

Change sign

Question 37

FFREE

Answer 37

Sets the register to empty

Question 38

FNSTSW

Answer 38

Moves the FPU status word into AX