TAILIEUCHUNG - Lecture Computer organization and assembly language - Lecture 07: Addressing Modes
This chapter presents the following content: opcode field, right of the opcode field is the operand field; the comment field, the final field, contains a comment about the instruction(s); instruction cycle state diagram; types of operands; data transfer, arithmetic, logical, conversion,. | CSC 221 Computer Organization and Assembly Language Lecture 07: Addressing Modes CHAPTER 03 The Intel Microprocessors: 8086/8088, 80186/80188, 80286, 80386, 80486 Pentium, Pentium Pro Processor, Pentium II, Pentium, 4, and Core2 with 64-bit Extensions Architecture, Programming, and Interfacing, Eighth Edition Barry B. Brey REFERENCE: opcode field. designed to hold the instruction, or opcode Right of the opcode field is the operand field. contains information used by the opcode the MOV AL,BL instruction has the opcode MOV and operands AL and BL The comment field, the final field, contains a comment about the instruction(s). comments always begin with a semicolon (;) Lecture 06: Review Opcode Operand(s) and/or Address(es) Lecture 06: Review (cont.) Instruction Cycle State Diagram Addresses: immediate, direct, indirect, stack Numbers: Integer or fixed point (binary, twos complement), Floating point (sign, significand, exponent), (packed) decimal (246 = 0000 0010 0100 0110) Characters:
đang nạp các trang xem trước
