There are 2 repositories under 8080 topic.
The development kit for over a hundred z80 family machines - c compiler, assembler, linker, libraries.
Whitesmiths C compiler. One of the earliest commercial C compilers available.
Online 8085 simulator
The famous Intel 8080 CP/M 2.2 to Intel 8086/8088 MS-DOS assembly language translator.
Awesome Lists of retrocomputing resources (6502, Apple 2, Atari, ...)
Single header Z80 emulator for C++ (C++11 or later)
SB-Assembler Version 3 - Cross Macro Assembler
Вектор-06ц в ПЛИС / Vector-06c in FPGA
Emulators for 8080/8085, 8086/8088, Z80, 6502 and TMS1000-family CPUs
:space_invader: Space Invaders emulator written in Lua :moon: and LÖVE :blue_heart:
Intel i8080 Space Invaders Arcade Emulator
Intel 8080 Emulator on 4004 Evaluation Board
com-cpm: COM, a CP/M-80 simulator (in portable C and 68000 assembly flavors) by Jim Cathey
Arduino runs a virtual 8080 CPU with Tiny BASIC
A simple E-Library made from HTML, CSS and PHP. One can host this on their local server and share E-books, Question papers, Documents etc. with others.
Collection of eight-bit processor emulators (for various projects)
An Intel 8080 emulator in JavaScript
An Intel 8080 CPU emulator written in Go that's meant to run the original Space Invaders ROM
A Multi-System emulator in Scratch 3.