Features of 80386. As it is a 32-bit microprocessor. Thus has 32-bit ALU. 80386 has data bus of 32-bit. It holds address bus of 32 bit. It supports physical memory addressability of 4 GB and virtual memory addressability of 64 TB. 80386 supports variety of operating clock frequency, which are 16 MHz, 20 MHz, 25 MHz and 33 MHz. 80186 Instruction ( Inst ) Set. 75+ Instructions Summarized. February 20, 2010 Instruction and Instruction Set 1. • An instruction is the basic command, in other words it is the most rudimentary programming command. • Instruction set refers to the set of all the instructions that can be executed by a microprocessor. • Instruction = Op-Code+Operands • Op-Code identifies the action to be 80386 Microprocessor. 80386 Microprocessor is a 32-bit processor that holds the ability to carry out 32-bit operations in one cycle. It has a data and address bus of 32-bit each. Thus has the ability to address 4 GB (or 2 32) of physical memory. Multitasking and protection capability are the two key characteristics of the 80386 microprocessor Chapter 17 80386 Instruction Set. This chapter presents instructions for the 80386 in alphabetical order. For each instruction, the forms are given for each operand combination, including object code produced, operands required, execution time, and a description. For each instruction, there is an operational description and a summary of Acces PDF 80386 Instruction Set Ppt 17 80386 Instruction Set. This chapter presents instructions for the 80386 in alphabetical order. For each instruction, the forms are given for each operand combination, including object code produced, operands required, execution time, and a description. Page 12/44 The 80386 microprocessor is a full 32-bit version of the earlier 8086 80286 l6-bit microprocessors, and represents a major advancement in the architecture switch from l6-bit architecture to 32-bit architecture. With memory-mapped I/O, any instruction that transfers data between the microprocessor and memory system can be used for I/O The different types of instructions in 8086 8086 Microprocessors Seminar and PPT with pdf report:The 8086 microprocessor is a developed version of 8085 microprocessor and it was advanced by the Intel in the year of 1976 and it is 16-bit microprocessors with a 40 pin DIP. This page contains 8086 Microprocessors Seminar PPT with PDF Report.