TAILIEUCHUNG - Lecture Computer organization and assembly language - Lecture 14: Flow Control Instructions in Assembly Language

In this lecture, students will be able to understand: Computer organization, data representation, integer arithmetic, binary representation, Assembly language examples, control flow, JMP Instruction, LOOP Instruction, LOOP Example Summing an Integer Array. | CSC 221 Computer Organization and Assembly Language Lecture 14: Flow Control Instructions in Assembly Language Lecture 13: Review top: . . jmp top JMP Instruction JMP is an unconditional jump to a label that is usually within the same procedure. Syntax: JMP target Logic: EIP target Example: Clock Cycle Instruction Cycle Lecture 13: Review (cont.) LOOP Instruction The LOOP instruction creates a counting loop Syntax: LOOP target Logic: ECX ECX – 1 if ECX != 0, jump to target 00000000 66 B8 0000 mov ax,0 00000004 B9 00000005 mov ecx,5 00000009 66 03 C1 L1: add ax,cx 0000000C E2 FB loop L1 0000000E offset machine code source code Lecture 13: Review (cont.) Nested Loops .data count DWORD ? .code mov ecx,100 ; set outer loop count L1: mov count,ecx ; save outer loop count mov ecx,20 ; set inner loop count L2: . . loop L2 ; repeat the inner loop mov ecx,count ; restore outer loop count loop L1 ; repeat the outer loop Lecture Outline Assembly Language Examples: Control Flow JMP .

• Cơ sở dữ liệu
• Assembly language
• Computer organization
• Lecture Computer organization
• Machine instruction characteristics
• Data representation
• Program control
• Lecture Assembly Language Programming
• Bài giảng Lập trình hợp ngữ
• Assembly language programming
• Introduction to Assembly Language
• Accumulator register
• Temporary storage
• Lecture Computer Architecture and Assembly Language Programming
• Bài giảng Kiến trúc máy tính
• Computer architecture
• Data movement instructions
• PC Assembly Language
• Creating a Program
• Basic Assembly Language
• Floating Point
• Physical address calculation
• Segment register value
• Tổ chức máy tính
• Lập trình hợp ngữ
• Computer System