[{"data":1,"prerenderedAt":256},["ShallowReactive",2],{"project-12360757":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":35,"aspects":36,"strip":41,"post_text":42,"what":43,"said":47,"maker_in_thread":126,"shape":128,"grid":133,"attempts":216,"same_week":217,"maker_shows":247,"maker_hidden":248,"reader_version":249,"card":250},"12360757","KnightOS","An open-source OS for calculators","title","Show HN: KnightOS – An open-source OS for calculators","http:\u002F\u002Fknightos.org","knightos.org","ddevault",1472145771,2016,180,34,164,2264,8,"notable","dev_tools","operating system for calculators","other",[24,25,26,27],"calculator os","ti-83 firmware","open source calculator","z80 assembly","curious",0.139,{"positive":31,"neutral":32,"mixed":33,"critical":34},3,5,0,2,10,{"execution":37,"idea":39,"docs":40},{"positive":33,"critical":38},1,{"positive":33,"critical":33},{"positive":38,"critical":38},[33,33,33,33,33,33,33,33,33,33,33,33,32,33,33,33,32,31,31,31,33,33,38,31,33,33,33,33,33,33,33,32,38,31],null,{"problem":42,"audience":42,"pricing":42,"motivation":42,"time_to_build":42,"stack":44,"openness":45,"stage":46,"team_size":46},[],"open_source","unknown",{"praise":48,"objections":64,"requests":90,"questions":95,"alternatives":111},[49,57],{"value":50,"source":51,"evidence":52},"Good getting-started assembly guide and inviting to tinker with","commenter",[53],{"id":54,"by":55,"text":56},"12364002","niftich","Ah, TI-83! I wrote my first-ever programs on this thing. The 'getting started with assembly' guide is really good; the whole thing is really inviting to tinker. Excellent work!",{"value":58,"source":51,"evidence":59},"Impressive amount of work and documentation",[60],{"id":61,"by":62,"text":63},"12363770","thesmallestcat","Wow OP, this is a ton of amazing work (in the GitHub organization). Your blog is great too. Do you have any advice for being so prolific? My butt can't take the sitting and my…",[65,76,83],{"value":66,"source":51,"evidence":67},"No install guide in the wiki initially; a download page was then pointed out",[68,72],{"id":69,"by":70,"text":71},"12364765","unixhero","No install guide in the wiki. Humm.",{"id":73,"by":74,"text":75},"12365842","Sir_Cmpwn","http:\u002F\u002Fknightos.org\u002Fdownload",{"value":77,"source":51,"evidence":78},"No graphing applications in the repos",[79],{"id":80,"by":81,"text":82},"12363871","qwertyuiop924","Ah, good. Thanks Drew. By the way, I didn't see any actually, you know, graphing applications in the repos. Those exist, right?",{"value":84,"source":51,"evidence":85},"No floating point support yet",[86],{"id":87,"by":88,"text":89},"12364124","MaxLeiter","They don't - KOS currently doesn't have FP support (although the C library[1] does provide FP, it's not too accurate or fast) [1] https:\u002F\u002Fwww.github.com\u002FKnightOS\u002Flibc",[91],{"value":92,"source":51,"evidence":93},"Graphing applications",[94],{"id":80,"by":81,"text":82},[96,102],{"value":97,"source":51,"evidence":98},"Can the calculator be used as a calculator with it installed",[99],{"id":100,"by":81,"text":101},"12365486","FP?? I was asking about using the calculator as a calculator. EDIT: Oh, floating point! Now it makes sense!",{"value":103,"source":51,"evidence":104},"Is it safe to flash the calculator firmware",[105,108],{"id":106,"by":81,"text":107},"12363760","I hear Drew's done some great work with this. I'd look at it myself, but flashing my calculator firmware is a bit risky for such an overpriced device. Thank you, College Board.",{"id":109,"by":74,"text":110},"12363808","FWIW it's very difficult to brick a calculator without doing so intentionally. The boot sector has a recovery mode built in for reflashing in case of the worst and the boot…",[112,119],{"value":113,"source":51,"evidence":114},"Andiegraph TI emulator on F-Droid",[115],{"id":116,"by":117,"text":118},"12364005","boyce","Anyone looking to have a play without finding their TI link cable - works on Andiegraph TI emulator from F Droid",{"value":120,"source":51,"evidence":121},"WP 34s open source RPN calculator",[122],{"id":123,"by":124,"text":125},"12364473","cathartes","I've long wanted to try the 50g, but haven't been able to forgive HP for ignoring longstanding bugs in the 35s and for outsourcing the design of the RPN calculators that they…",{"comments":33,"answered":33,"key":127},[],{"commenters":129,"max_depth":130,"maker_replies":33,"first_comment_mins":131,"lifespan_hours":132},20,7,486,23,[134,138,141,144,147,150,152,156,159,160,162,165,167,169,171,173,175,176,178,180,181,182,186,189,192,194,196,198,200,203,206,210,212,214],[135,33,33,136,137,33],"12365073","commenter\u002Fneutral\u002Fidea","sleepychu",[139,33,33,136,140,33],"12365592","vanderZwan",[142,33,33,136,143,33],"12365994","fimdomeio",[145,33,33,146,140,33],"12366135","commenter\u002Fneutral\u002Fnone",[148,33,33,146,149,33],"12366272","eitland",[151,33,33,146,137,33],"12366654",[153,38,33,154,155,33],"12364089","other\u002Fneutral\u002Fnone","webkike",[157,38,33,154,158,33],"12364249","mveety",[123,38,33,154,124,33],[161,38,33,154,70,33],"12364760",[163,38,33,154,164,33],"12364843","kmill",[166,38,33,154,124,33],"12365047",[61,34,32,168,62,33],"maker\u002Fpositive\u002Fnone",[170,34,33,154,74,33],"12363803",[172,34,33,146,62,33],"12363810",[174,34,33,146,74,33],"12363821",[106,31,32,168,81,33],[109,31,31,177,74,33],"project\u002Fneutral\u002Fexecution",[80,31,31,179,81,33],"project\u002Fneutral\u002Fidea",[87,31,31,177,88,33],[100,31,33,146,81,33],[183,31,33,184,185,33],"12363842","other\u002Fneutral\u002Fpricing","dalke",[187,31,38,188,81,33],"12363883","project\u002Fcritical\u002Fexecution",[190,31,31,177,191,33],"12364010","hackcasual",[193,31,33,146,81,33],"12365489",[195,31,33,146,191,33],"12366815",[197,31,33,146,81,33],"12367150",[116,199,33,154,117,33],4,[201,199,33,154,202,33],"12366642","tombert",[204,32,33,154,205,33],"12365434","linohh",[207,208,33,154,209,33],"12364057",6,"overcast",[54,130,32,211,55,33],"maker\u002Fpositive\u002Fdocs",[69,18,38,213,70,33],"maker\u002Fcritical\u002Fdocs",[73,18,31,215,74,33],"maker\u002Fneutral\u002Fdocs",[],[218,223,228,233,238,242],{"id":219,"name":220,"points":221,"category":222},"12365693","Hacker News Books",463,"data",{"id":224,"name":225,"points":226,"category":227},"12392068","HTML Sheets of Paper",136,"productivity",{"id":229,"name":230,"points":231,"category":232},"12376559","DeployBot",129,"infrastructure",{"id":234,"name":235,"points":236,"category":237},"12372165","In-view.js",118,"languages",{"id":239,"name":240,"points":241,"category":222},"12399985","Meetup City Finder",104,{"id":243,"name":244,"points":245,"category":246},"12398261","Price Miner",79,"consumer_social",9,false,"v2",{"id":251,"name":5,"line":6,"ai":248,"cat":20,"year":13,"points":14,"comments":15,"rec":28,"s":252,"top":18,"kw":253,"maker":11,"domain":10,"tier":19,"attempts":33,"strip":254,"url":9,"mix":255,"praise":50,"objection":66,"sub":21},12360757,0.14,[24,25,26,27],"0000000000005000533300130000000513",[31,32,33,34],1794036547003]