My CPU Does 16 Bit Jumps Now – Superscalar 8-Bit CPU #22 скачать в хорошем качестве

My CPU Does 16 Bit Jumps Now – Superscalar 8-Bit CPU #22

Our CPU wants to execute code from anywhere in memory. Right now it can only jump to locations in the first 256 bytes though. In this video, we put the third read port of the larger register file to use and allow the program to combine two neighboring 8 bit registers into a 16 bit jump address. We take a look at wiring up the third read port, using the full 16 bits to jump and address the program memory, and we introduce a new "rs16" register operand into the CPU's instruction set architecture. As a result, our CPU can jump to even the furthest corners of program memory. 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:    • Expanding the Register File – Superscalar ...   Series Playlist:    • Build a Superscalar CPU   8 bit registers in the Intel 8086: https://en.wikipedia.org/wiki/Intel_8... Jump Instructions: https://en.wikipedia.org/wiki/Control... Related Videos: Register File:    • Expanding the Register File – Superscalar ...   00:00 - Intro 01:50 - Combining Registers 03:09 - Reading a Third Register 04:11 - Testing 05:19 - 16 bit Program Memory Addresses 07:57 - Updating the Instruction Set 10:48 - Updating the Program 14:46 - Testing 17:12 - Implications 18:46 - Outro #homebrew #8bit #breadboard #superscalar #computer