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zk/Instruction_set_architectures.md
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tags: [CPU] tags: [CPU]
--- ---
# instruction set architectures # Instruction Set Architectures
We know that the [ALU](Arithmetic_Logic_Unit.md) is responsible for the We know that the [ALU](Arithmetic_Logic_Unit.md) is responsible for the
"execute" stage of the [fetch, decode, execute](Fetch_decode_execute.md) cycle, "execute" stage of the [fetch, decode, execute](Fetch_decode_execute.md) cycle,
@ -40,8 +40,8 @@ There have been different, successive generations of x86 corresponding to their
here just means how many bits the processor can work with at a time. here just means how many bits the processor can work with at a time.
A 34-bit processor can operate on values that are 32 bits in length. This means A 34-bit processor can operate on values that are 32 bits in length. This means
it has 32bit registers, a 32-bit data [[Bus|bus]], a 32-bit address bus and so it has 32bit [[CPU_architecture#registers|registers]], a 32-bit data
on. [[Bus|bus]], a 32-bit address bus and so on.
AMD introduced the first 64-bit processor, not Intel but they later caught up. A AMD introduced the first 64-bit processor, not Intel but they later caught up. A
64-bit x86 processor is often referred to as _x64_ or _x86-64_. 64-bit x86 processor is often referred to as _x64_ or _x86-64_.

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zk/Machine code.md Normal file
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---
id: iqh8
title: Machine_code
tags: [binary, CPU]
created: Monday, March 11, 2024
---
# Machine code
No matter how a program was originally written, it eventually needs to execute
on a [[CPU_architecture|CPU]] as a series of machine language instructions.