{"id":21376899,"url":"https://github.com/codesqueak/z80processor","last_synced_at":"2025-07-06T01:03:03.523Z","repository":{"id":11603789,"uuid":"65858554","full_name":"codesqueak/Z80Processor","owner":"codesqueak","description":"A Zilog Z80 Processor Emulator in Java","archived":false,"fork":false,"pushed_at":"2024-06-25T15:12:17.000Z","size":432,"stargazers_count":12,"open_issues_count":1,"forks_count":7,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-07-06T01:02:59.477Z","etag":null,"topics":["emulator","java","z80","zilog"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/codesqueak.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2016-08-16T22:44:16.000Z","updated_at":"2024-12-14T03:09:31.000Z","dependencies_parsed_at":"2025-07-06T01:02:59.272Z","dependency_job_id":null,"html_url":"https://github.com/codesqueak/Z80Processor","commit_stats":null,"previous_names":[],"tags_count":3,"template":false,"template_full_name":null,"purl":"pkg:github/codesqueak/Z80Processor","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codesqueak%2FZ80Processor","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codesqueak%2FZ80Processor/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codesqueak%2FZ80Processor/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codesqueak%2FZ80Processor/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/codesqueak","download_url":"https://codeload.github.com/codesqueak/Z80Processor/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codesqueak%2FZ80Processor/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":263833411,"owners_count":23517371,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["emulator","java","z80","zilog"],"created_at":"2024-11-22T09:18:08.439Z","updated_at":"2025-07-06T01:03:03.497Z","avatar_url":"https://github.com/codesqueak.png","language":"Java","funding_links":["https://www.buymeacoffee.com/codesqueak"],"categories":[],"sub_categories":[],"readme":"![CodeQL](https://github.com/codesqueak/Z80Processor/workflows/CodeQL/badge.svg)\n[![Java CI with Gradle](https://github.com/codesqueak/Z80Processor/actions/workflows/gradle.yml/badge.svg)](https://github.com/codesqueak/Z80Processor/actions/workflows/gradle.yml)\n[![License: MIT](https://img.shields.io/badge/license-Apache_2.0-brightgreen.svg)](https://www.apache.org/licenses/LICENSE-2.0)\n[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.codingrodent.microprocessor/Z80Processor/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.codingrodent.microprocessor/Z80Processor)\n\n# Z80 Processor in Java\n\nZ80Processor is a an implementation of the Mostek / Zilog Z80 processor in Java\n\nThe code is not designed to be nice / clean / compact - however it is designed to be fast and easily checkable with every instruction \non its own switch / case statement. \n\nIf you are looking for a compact implementation, have a look at the Go implementation [here](https://github.com/codesqueak/z80)\n\nIt code has been heavily profiled using [Yourkit](https://www.yourkit.com/) while running 'real' applications to identify hotspots.\n\nIf you find this project useful, you may want to [__Buy me a Coffee!__ :coffee:](https://www.buymeacoffee.com/codesqueak) Thanks :thumbsup:\n\n## Build\n\nWindows\n\ngradlew clean build test\n\nLinux\n\n./gradlew clean build test\n\nThe build may take a few minutes as it includes a comprehensive test suite for the Z80 instruction set.\n\n## Java Version\n\nVersion 4.0.0 onwards of the emulator require Java 17 or above\n\n### Include Using Maven\n\n```\n\u003c!-- https://mvnrepository.com/artifact/com.codingrodent.microprocessor/Z80Processor --\u003e\n\u003cdependency\u003e\n    \u003cgroupId\u003ecom.codingrodent.microprocessor\u003c/groupId\u003e\n    \u003cartifactId\u003eZ80Processor\u003c/artifactId\u003e\n    \u003cversion\u003e4.2.0\u003c/version\u003e\n\u003c/dependency\u003e\n```\n\n### Include Using Gradle\n\n```\n// https://mvnrepository.com/artifact/com.codingrodent.microprocessor/Z80Processor\ncompile group: 'com.codingrodent.microprocessor', name: 'Z80Processor', version: '4.2.0'\n```\n\n## Undocumented instruction\n\nThe code attempts to faithfully reproduce the numerous undocumented instructions in the Z80.  I have tested against a real device but if you find any issues, let me know.\n\n## How to make a machine\n\nTo make a machine you need three components, the CPU, Memory and I/O.  To see a simple example, look at the test in Z80CoreTest.java.  \n\n\n\n\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcodesqueak%2Fz80processor","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcodesqueak%2Fz80processor","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcodesqueak%2Fz80processor/lists"}