assembly language

Detailed Explanation of Implicit Actions of Storage Model Pseudoinstructions in Assembly Language

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Detailed Explanation of Implicit Actions of Storage Model Pseudoinstructions in Assembly Language

Implicit Behaviors of Storage Model Pseudoinstructions <span>.MODEL</span> pseudoinstructions not only define the storage model of the program but also automatically execute several important low-level settings. These implicit actions greatly simplify the writing of assembly language programs. Core Implicit Actions **Automatic Creation of Segment Group (DGROUP)**： Combines <span>_DATA</span>, <span>CONST</span>, <span>_BSS</span>, and <span>STACK</span> into a segment group … Read more

Detailed Explanation of Special Macro Operators in Assembly Language

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Detailed Explanation of Special Macro Operators in Assembly Language

Overview of Macro Operators In assembly language macro processing, special operators provide fine control over macro parameter handling, making macro definitions more flexible and powerful. These operators are processed by the assembler during the macro expansion phase and do not affect the final generated code. Detailed Explanation of Five Special Macro Operators 1. Forced Replacement … Read more

Assembly Language Day 02

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Assembly Language Day 02

0x00 This article is dedicated to daily learning and note sharing to help everyone learn assembly language. Why learn assembly language? Because in red-blue confrontations, our tools are often detected and killed by some AV/EDR. Therefore, we need to counter AV, which is the evasion technique. To learn evasion techniques, we must start from the … Read more

Detailed Explanation of Macro Definition Nesting Techniques in Assembly Language

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Detailed Explanation of Macro Definition Nesting Techniques in Assembly Language

Concepts and Types of Macro Nesting Macro nesting is a powerful code generation technique in assembly language, mainly divided into two forms: Macro Call Nesting: Calling other defined macros within the body of a macro definition Macro Definition Nesting: Defining new macros within the body of a macro definition 1. Macro Call Nesting Technical Features … Read more

Detailed Explanation of Simplified Segment Definition Techniques in Assembly Language

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Detailed Explanation of Simplified Segment Definition Techniques in Assembly Language

Overview of Simplified Segment Definition In assembly language programming, the new version of the assembler provides a method for simplified segment definition, which is more convenient compared to complete segment definitions. The simplified segment definition automatically handles segment attributes through predefined storage models, significantly reducing the burden on programmers. Core Advantages of Simplified Segment Definition: … Read more

Detailed Explanation of Grouping Technology in Assembly Language

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Detailed Explanation of Grouping Technology in Assembly Language

Concept and Function of Grouping Grouping (Group) is a technique in assembly language that combines multiple logical segments into a single physical segment, addressing the issue of frequently switching segment registers in the 8086/8088 architecture. Through grouping, programmers can treat multiple logical segments as one large physical segment for access, thereby simplifying code writing and … Read more

Segment Definition and Linking in Modular Assembly Language Programming

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Segment Definition and Linking in Modular Assembly Language Programming

Relationship Between Modular Program Structure and Segments In the 8086/8088 architecture, memory is managed in segments. Therefore, when a complex program consists of multiple modules, each module may contain several segments. The linker needs to combine these scattered segments into a final executable program. Basic Concepts of Module Linking: Source Module: Can be written in … Read more

Assembly Language Day 01

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Assembly Language Day 01

0x00 This article is dedicated to daily learning and note sharing to help everyone learn assembly language. Why learn assembly language? Because in red-blue confrontations, our tools are often detected and killed by some AV/EDR. Therefore, we need to counter AV, which is the evasion technique. To learn evasion techniques, we must start from the … Read more

Fundamentals of Assembly Language

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Fundamentals of Assembly Language

0x00 This article is dedicated to daily learning and note sharing to help everyone learn assembly language. Why learn assembly language? Because in red-blue confrontations, our tools are often detected and eliminated by AV/EDR systems. Therefore, we need to counter AV, which involves evasion techniques. To learn evasion techniques, we must start from the basics. … Read more

Modular Programming Design in Assembly Language

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Modular Programming Design in Assembly Language

Concept of Modular Programming Design Modular programming design refers to the method of breaking down a large program into multiple independent modules with clear tasks, which are written and debugged separately before being linked together to form a complete program. This approach is particularly important in assembly language development as it effectively manages complexity. Advantages … Read more