How a Register File Works – Superscalar 8-Bit CPU #16
A processor needs registers to keep frequently used data nearby. In this video, we take a closer look at the reason registers are such a popular choice in computer architectures, how we can arrange them into a register file, and we start building a breadboard implementation of a basic register file for our CPU. This video series explores the concepts and techniques that make modern computer processors so incredibly fast and powerful. I build my very own 8-bit processor from individual logic gates and gradually evolve it to become a superscalar out-of-order machine. Along the way, we take a deep dive into contemporary computer architecture in a hands-on fashion and rediscover some of the foundations of modern computing. Previous Video: • Program Counter PCB – Superscalar 8-Bit CP... Series Playlist: • Build a Superscalar CPU Register File: https://en.wikipedia.org/wiki/Registe... Three-State Logic: https://en.wikipedia.org/wiki/Three-s... Address Decoder: https://en.wikipedia.org/wiki/Address... Chips: 74HC377: https://www.ti.com/lit/ds/symlink/sn7... 74HC541: https://www.ti.com/lit/ds/symlink/sn7... 74HC139: https://www.ti.com/lit/ds/symlink/sn7... CPUs: 6502: https://en.wikipedia.org/wiki/MOS_Tec... Z80: https://en.wikipedia.org/wiki/Zilog_Z80 8086: https://en.wikipedia.org/wiki/Intel_8086 RV32: https://en.wikipedia.org/wiki/RISC-V Related Videos: Ben Eater's fantastic 6502 series: • “Hello, world” from scratch on a 6502 — Pa... 6502 Reverse Engineering: • 27c3: Reverse Engineering the MOS 6502 CPU... The Ultimate Game Boy Talk (Z80 related): • The Ultimate Game Boy Talk (33c3) 00:00 - Intro 00:27 - Memory Operands 02:07 - Register Operands 03:53 - Registers in Other Processors 05:33 - Register File Concept 07:33 - Register File Implementation 09:33 - Single Register Storage 12:52 - Single Register Read-Out 17:26 - Multiple Registers 20:49 - Testing 23:04 - Address Decoding 27:08 - Testing 29:18 - Outro #homebrew #8bit #breadboard #superscalar #computer
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