This document discusses different addressing modes and instruction formats. It covers several addressing modes including immediate, direct, indirect, register, register indirect, displacement, stack, and relative addressing. It also discusses the instruction formats of different processors including PDP-8, PDP-10, PDP-11, VAX, Pentium, and PowerPC with details on opcode, operands, addressing modes, instruction length and allocation of bits.

1. William Stallings Computer Organization and Architecture 7 th Edition Chapter 11 Instruction Sets: Addressing Modes and Formats

4. Immediate Addressing Diagram Operand Opcode Instruction

6. Direct Addressing Diagram Address A Opcode Instruction Memory Operand

9. Indirect Addressing Diagram Address A Opcode Instruction Memory Operand Pointer to operand

12. Register Addressing Diagram Register Address R Opcode Instruction Registers Operand

14. Register Indirect Addressing Diagram Register Address R Opcode Instruction Memory Operand Pointer to Operand Registers

16. Displacement Addressing Diagram Register R Opcode Instruction Memory Operand Pointer to Operand Registers Address A +

23. Pentium Addressing Mode Calculation

25. PowerPC Memory Operand Addressing Modes

29. PDP-8 Instruction Format

30. PDP-10 Instruction Format

31. PDP-11 Instruction Format

32. VAX Instruction Examples

33. Pentium Instruction Format

34. PowerPC Instruction Formats (1)

35. PowerPC Instruction Formats (2)