{"id":114,"date":"2015-07-02T21:15:26","date_gmt":"2015-07-03T03:15:26","guid":{"rendered":"http:\/\/jacobncalvert.com\/?p=114"},"modified":"2018-02-10T14:46:04","modified_gmt":"2018-02-10T20:46:04","slug":"july-update","status":"publish","type":"post","link":"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/","title":{"rendered":"July Update"},"content":{"rendered":"<p>I&#8217;ve not written for a while because I&#8217;ve been crazy busy recently. I have started a new internship and moved cities to work. But I&#8217;ve also been working on a ton of other things as well. Recently, I have been reading the\u00a0<a href=\"http:\/\/wiki.osdev.org\/Main_Page&amp;type=external\">OSDev Wiki<\/a>\u00a0and trying my hand at OS development. I am slightly cheating by using an i686 emulator from QEMU and GRUB to boot me into real mode, but I am writing everything else from scratch. I&#8217;ve found the most difficult part to be memory mapping. It&#8217;s much more difficult than I ever imagined. I take it for granted that I can simply call<\/p>\n<pre>malloc<\/pre>\n<p>in C or<\/p>\n<pre> new SomeClass()<\/pre>\n<p>in C++. I&#8217;m almost finished with a memory manager in C so hopefully I can get a self-hosted system soon.<br \/>\nAlternatively, when I&#8217;m not doing OS development, I&#8217;m improving my Java multithreading and network programming skills. I recently wrote a library for &#8220;hooking up&#8221; multiple services via multicast and being able to pass around messages in a bus-like fashion. It&#8217;s very rudimentary but it was helpful in learning Java threading and networking. I&#8217;ll post the source up here when it&#8217;s more mature.<br \/>\nThanks for reading and have a Happy Independence Day!<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-medium wp-image-116\" src=\"http:\/\/jacobncalvert.com\/wp-content\/uploads\/2015\/07\/usa-300x225.gif\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/jacobncalvert.com\/blog-archive\/wp-content\/uploads\/2015\/07\/usa-300x225.gif 300w, https:\/\/jacobncalvert.com\/blog-archive\/wp-content\/uploads\/2015\/07\/usa-768x576.gif 768w, https:\/\/jacobncalvert.com\/blog-archive\/wp-content\/uploads\/2015\/07\/usa-795x596.gif 795w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ve not written for a while because I&#8217;ve been crazy busy recently. I have started a new internship and moved cities to work. But I&#8217;ve also been working on a ton of other things as well. Recently, I have been reading the\u00a0OSDev Wiki\u00a0and trying my hand at OS development. I am slightly cheating by using an i686 emulator from QEMU and GRUB to boot me into real mode, but I am writing everything else from scratch. I&#8217;ve found the most&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[11,40,43,10,41,42],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>July Update - Jacob N Calvert<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"July Update - Jacob N Calvert\" \/>\n<meta property=\"og:description\" content=\"I&#8217;ve not written for a while because I&#8217;ve been crazy busy recently. I have started a new internship and moved cities to work. But I&#8217;ve also been working on a ton of other things as well. Recently, I have been reading the\u00a0OSDev Wiki\u00a0and trying my hand at OS development. I am slightly cheating by using an i686 emulator from QEMU and GRUB to boot me into real mode, but I am writing everything else from scratch. I&#8217;ve found the most&hellip;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/\" \/>\n<meta property=\"og:site_name\" content=\"Jacob N Calvert\" \/>\n<meta property=\"article:published_time\" content=\"2015-07-03T03:15:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2018-02-10T20:46:04+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/jacobncalvert.com\/wp-content\/uploads\/2015\/07\/usa-300x225.gif\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/#website\",\"url\":\"https:\/\/jacobncalvert.com\/blog-archive\/\",\"name\":\"Jacob N Calvert\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/jacobncalvert.com\/blog-archive\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/#primaryimage\",\"inLanguage\":\"en-US\",\"url\":\"http:\/\/jacobncalvert.com\/wp-content\/uploads\/2015\/07\/usa-300x225.gif\",\"contentUrl\":\"http:\/\/jacobncalvert.com\/wp-content\/uploads\/2015\/07\/usa-300x225.gif\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/#webpage\",\"url\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/\",\"name\":\"July Update - Jacob N Calvert\",\"isPartOf\":{\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/#primaryimage\"},\"datePublished\":\"2015-07-03T03:15:26+00:00\",\"dateModified\":\"2018-02-10T20:46:04+00:00\",\"author\":{\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/#\/schema\/person\/f4b22a996d41bf09ed2bbe22912a8c8a\"},\"breadcrumb\":{\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/\",\"url\":\"https:\/\/jacobncalvert.com\/blog-archive\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/2015\/07\/02\/july-update\/#webpage\"}}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/#\/schema\/person\/f4b22a996d41bf09ed2bbe22912a8c8a\",\"name\":\"Jacob\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/jacobncalvert.com\/blog-archive\/#personlogo\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/64a2dd1c00cb39dfc19bb1204c87efbc?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/64a2dd1c00cb39dfc19bb1204c87efbc?s=96&d=mm&r=g\",\"caption\":\"Jacob\"},\"sameAs\":[\"https:\/\/jacobncalvert.com\"],\"url\":\"https:\/\/jacobncalvert.com\/blog-archive\/author\/jcalvert\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/posts\/114"}],"collection":[{"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/comments?post=114"}],"version-history":[{"count":2,"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/posts\/114\/revisions"}],"predecessor-version":[{"id":117,"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/posts\/114\/revisions\/117"}],"wp:attachment":[{"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/media?parent=114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/categories?post=114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jacobncalvert.com\/blog-archive\/wp-json\/wp\/v2\/tags?post=114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}