What is instruction set?

Instruction Set

An instruction set, or instruction set architecture (ISA), is the part of the computer architecture related to programming, including the native data types, instructions, registers, addressing modes, memory architecture, interrupt and exception handling, and external I/O. An ISA includes a specification of the set of opcodes (machine language), and the native commands implemented by a particular processor.

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Some articles on instruction set:

Instruction Set Implementation - Number of Operands
... Instruction sets may be categorized by the maximum number of operands explicitly specified in instructions ... take place using the top one or two positions on the stack 1-operand push and pop instructions are used to access memory push a, push b, add, pop c ... include early computers and many small microcontrollers most instructions specify a single right operand (that is, constant, a register, or a memory location), with the implicit accumulator as ...
Dynamic Program Analysis - Historical Examples
... error detection including storage violations using an instruction Set Simulator to detect most CICS errors interactively SIMON (Batch Interactive test/debug) interactive batch program ...
Language For Instruction Set Architecture
... LISA (Language for Instruction Set Architectures) is a language to describe the instruction set architecture of a processor ... to generate software tools (compiler, assembler, instruction set simulator...) and implementation hardware (in VHDL or Verilog) of a given processor ... Another application has been to generate the ISS (instruction set simulator) for RISC processors such the ARM Architecture ISSes ...
Apollo Abort Guidance System - Description - Instruction Set
... The AEA instruction format consisted of 5-bit instruction code, index bit and a 12-bit address ... The computer had 27 instructions ADZ (Add and Zero) The contents of memory are added to Accumulator A ... The contents of memory are set to zero ...
SSE5 - 2009 Revision
... to the general coding scheme of X86 instructions in order to allow instructions to have more than two operands ... In 2008, Intel announced their planned AVX instruction set which proposed a different way of coding instructions with more than two operands. 2009, AMD published a revised specification for the planned future instructions ...

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