Comments on: Twittjr http://grantovich.net Overusing semicolons since 2007 Wed, 03 Feb 2010 18:30:08 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Grantovich http://grantovich.net/projects/twittjr/comment-page-1/#comment-16 Grantovich Fri, 15 May 2009 17:06:57 +0000 http://grantovich.net/?page_id=87#comment-16 <a href="#comment-13" rel="nofollow">@MBBrutman</a> As I said <a href="http://grantovich.net/2009/05/12/twittjr-code-is-up/" rel="nofollow">earlier</a>, I don't plan on developing Twittjr much further than where it is now. I have other projects that demand my free time, and I think the Twittjr code will do fine in the hands of the many other CSHers who live here. Of course, you're welcome to hack away at it, if you have an Ethernet-capable PCjr. Send pics! ;) @MBBrutman As I said earlier, I don’t plan on developing Twittjr much further than where it is now. I have other projects that demand my free time, and I think the Twittjr code will do fine in the hands of the many other CSHers who live here. Of course, you’re welcome to hack away at it, if you have an Ethernet-capable PCjr. Send pics! ;)

]]> By: MBBrutman http://grantovich.net/projects/twittjr/comment-page-1/#comment-13 MBBrutman Fri, 15 May 2009 03:59:49 +0000 http://grantovich.net/?page_id=87#comment-13 Alex - A stock PCjr has 112KB free after the video memory is allocated. Boot DOS 2.1 and you probably loose 20 or 30K of that. The DOS packet drivers are only a handful of K in size. We could sneak an IP stack into 64K fairly easily. And since this isn't a high performance app, we could forgo some features and buffer space. Just just find a single 128K sidecar and you would have plenty of room. Let me know when you are ready. :-) BTW - I grant style points for using a stock machine with Cartridge BASIC. The screen shots look great. Alex – A stock PCjr has 112KB free after the video memory is allocated. Boot DOS 2.1 and you probably loose 20 or 30K of that.

The DOS packet drivers are only a handful of K in size. We could sneak an IP stack into 64K fairly easily. And since this isn’t a high performance app, we could forgo some features and buffer space. Just just find a single 128K sidecar and you would have plenty of room.

Let me know when you are ready. :-)

BTW – I grant style points for using a stock machine with Cartridge BASIC. The screen shots look great.

]]> By: Grantovich http://grantovich.net/projects/twittjr/comment-page-1/#comment-12 Grantovich Thu, 14 May 2009 20:54:32 +0000 http://grantovich.net/?page_id=87#comment-12 <a href="#comment-8" rel="nofollow">@Evan</a> JSON might make it easier to parse the feed, but that's a trivial amount of work compared to getting the PCjr "on the internet" with nothing but a modem. Even if you paid for access to a dial-up ISP, you'd need at least a PPP/IP stack to get anywhere, and I don't know if it's possible to interact with those through BASIC. I hear old versions of Turbo C++ can compile for the 8088 architecture, though! <a href="#comment-10" rel="nofollow">@MBBrutman</a> That is quite something! I salute your superior DOS programming skills. Unfortunately CSH's PCjr only has the stock 128K of RAM, so even if I had an Ethernet sidecar (which I have seen some people hack together), I think the packet driver alone would take up all my free memory! I'll keep your TCP/IP stack in mind if I ever stumble on a slightly more powerful DOS machine; a long time ago I had an old 486 laptop that could have used it. @Evan JSON might make it easier to parse the feed, but that’s a trivial amount of work compared to getting the PCjr “on the internet” with nothing but a modem. Even if you paid for access to a dial-up ISP, you’d need at least a PPP/IP stack to get anywhere, and I don’t know if it’s possible to interact with those through BASIC. I hear old versions of Turbo C++ can compile for the 8088 architecture, though!

@MBBrutman That is quite something! I salute your superior DOS programming skills. Unfortunately CSH’s PCjr only has the stock 128K of RAM, so even if I had an Ethernet sidecar (which I have seen some people hack together), I think the packet driver alone would take up all my free memory! I’ll keep your TCP/IP stack in mind if I ever stumble on a slightly more powerful DOS machine; a long time ago I had an old 486 laptop that could have used it.

]]> By: George http://grantovich.net/projects/twittjr/comment-page-1/#comment-11 George Thu, 14 May 2009 18:01:02 +0000 http://grantovich.net/?page_id=87#comment-11 It is fairly easy to "port" this code to other systems (ZX Spectrum and MSX in particular come to mind). The hard part, actually, is to find working hardware, not the computers per se, but the modems that were pretty rare for some of them. Apple ][s and MSXs got modems aplenty, but when was the last time you saw a modem for the ZX81 or a CoCo? It is fairly easy to “port” this code to other systems (ZX Spectrum and MSX in particular come to mind).

The hard part, actually, is to find working hardware, not the computers per se, but the modems that were pretty rare for some of them. Apple ][s and MSXs got modems aplenty, but when was the last time you saw a modem for the ZX81 or a CoCo?

]]> By: MBBrutman http://grantovich.net/projects/twittjr/comment-page-1/#comment-10 MBBrutman Thu, 14 May 2009 14:05:05 +0000 http://grantovich.net/?page_id=87#comment-10 Want to get that running natively on a PCjr, complete with Ethernet and TCP/IP on the machine? I've got a TCP/IP stack for the Jr you might like. :-) Want to get that running natively on a PCjr, complete with Ethernet and TCP/IP on the machine? I’ve got a TCP/IP stack for the Jr you might like. :-)

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