Сегментная структура программ. Стек

Август 11, 2022

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Сегментная структура программ. Стек

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2. 1. What is a structure of a system? Structure of system is actually a set of
4. mov AX,data assume CS:code,DS:data end begin
5. Text of any program includes key words, which may be divided into: instructions(commands) of processor and
6. 2. What (simplest) type of elements does a standard assembly program include? Standard assembly program includes
8. 3. What is a segment of a program in Assembly? Segment in Assembly program is a
10. 4. What types of program segments are used in Assembly? One segment is used to contain
11. 5. What is for is data segment used in Assembly? Data segment − It is used
12. 7. What is for is code segment used in Assembly? Code segment − It is represented
13. 8. What is for is stack segment used in Assembly? The stack memory segment is an
15. The Program Segment Prefix (PSP) is a data structure used in DOS in systems to store
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1. What is a structure of a system?
Structure of system is

actually a set of its elements and interconnections (interfaces) among them that determine a system's composition and functioning, its properties and stability.

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mov AX,data
assume CS:code,DS:data
end begin

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Text of any program includes key words, which may be divided

into: instructions(commands) of processor and directives(pseudo-instructions) of translator.
Instructions(commands) are such expressions, which determine concrete operations to be executed by the computer (each instruction determines only one operation) and their (its) operands.
Directives(pseudo-instructions) are intended for the transfer of service information to the translator, which is necessary during the process of the program assembling.

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2. What (simplest) type of elements does a standard assembly program

include?

Standard assembly program includes different (simplest) types of elements or key words, which may be divided into: instructions (commands) of processor and directives (pseudo-instructions) of translator. From these elements corresponding sentences (statements or lines) are composed.

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3. What is a segment of a program in Assembly?
Segment

in Assembly program is a part of it used to contain a specific type of statements (or data).

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4. What types of program segments are used in Assembly?
One segment is

used to contain instruction codes, another segment stores the data elements, and a third segment keeps the program stack.

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5. What is for is data segment used in Assembly?
Data

segment − It is used to declare the memory region, where data elements are stored for the program. This section cannot be expanded after the data elements are declared, and it remains static throughout the program.

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7. What is for is code segment used in Assembly?
Code

segment − It is represented by text section. This defines an area in memory that stores the instruction codes. This is a fixed area.

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8. What is for is stack segment used in Assembly?
The stack memory segment is

an area of memory allotted for automatic variables. Automatic variables are allocated and de-allocated automatically when program flow enters and leaves the variable's scope. Stack memory is allocated and de-allocated at the top of the stack, using Last-In-First-Out (LIFO).

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