{"id":21447,"date":"2024-06-02T01:17:52","date_gmt":"2024-06-02T05:17:52","guid":{"rendered":"https:\/\/twiar.net\/?p=21447"},"modified":"2024-05-30T01:32:04","modified_gmt":"2024-05-30T05:32:04","slug":"via-hackaday-the-6809-lives-on-in-an-fpga","status":"publish","type":"post","link":"https:\/\/twiar.net\/2024\/06\/02\/via-hackaday-the-6809-lives-on-in-an-fpga\/","title":{"rendered":"via HACKADAY: The 6809 Lives On in an FPGA"},"content":{"rendered":"<div><img decoding=\"async\" style=\"max-width: 600px;\" src=\"https:\/\/hackaday.com\/wp-content\/uploads\/2024\/05\/cpu.png\" \/><\/p>\n<div><\/div>\n<div>\n<p>At one point, the Motorola 6809 seemed like a great CPU. At the time it was a modern 8-bit CPU and was capable of hosting position-independent code and re-entrant code. Sure, it was pricey back in 1981 (about four times the price of a Z80), but it did boast many features. However, the price probably prevented it from being in more computers. There were a handful, including the Radio Shack Color Computer, but for the most part, the cheaper Z80 and the even cheaper 6502 ruled the roost. Thanks to the [turbo9team], however, you can now host one of these CPUs \u2014 maybe even a better version \u2014\u00a0<a href=\"https:\/\/github.com\/turbo9team\/turbo9\" target=\"_blank\" rel=\"noopener\">in an FPGA using Verilog<\/a>.<\/p>\n<p>The CPU may be old-fashioned on the outside, but inside, it is a pipeline architecture with a standard Wishbone bus to incorporate other cores to add peripherals. The GitHub page explains that while the 6809 is technically CISC, it\u2019s so simple that it\u2019s possible to translate to a RISC-like architecture internally. There are also a few enhanced instructions not present on the 6809.<\/p>\n<\/div>\n<div>via Blog \u2013 Hackaday <a href=\"https:\/\/hackaday.com\/2024\/05\/28\/the-6809-lives-on-in-an-fpga\/\" target=\"_blank\" rel=\"noopener\">https:\/\/hackaday.com\/2024\/05\/28\/the-6809-lives-on-in-an-fpga\/<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>At one point, the Motorola 6809 seemed like a great CPU. At the time it&#8230;<\/p>\n","protected":false},"author":5,"featured_media":21417,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rop_custom_images_group":[],"rop_custom_messages_group":[],"rop_publish_now":"initial","rop_publish_now_accounts":{"twitter_16139062_16139062":""},"rop_publish_now_history":[],"rop_publish_now_status":"pending","footnotes":""},"categories":[109,108],"tags":[2072,3650,110,103,111,3910,27,842],"class_list":["post-21447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hackaday","category-makers","tag-computers","tag-cpu","tag-hackaday","tag-ifttt","tag-makerspace","tag-motorola","tag-news","tag-radio-shack"],"_links":{"self":[{"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/posts\/21447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/comments?post=21447"}],"version-history":[{"count":2,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/posts\/21447\/revisions"}],"predecessor-version":[{"id":21462,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/posts\/21447\/revisions\/21462"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/media\/21417"}],"wp:attachment":[{"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/media?parent=21447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/categories?post=21447"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/twiar.net\/wp-json\/wp\/v2\/tags?post=21447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}