00:00:00 --- log: started forth/19.09.30
00:00:40 <rdrop-exit> It would be nice to have when we're at the beach
00:01:58 <tp> in the dark ?
00:02:11 <rdrop-exit> Sure
00:02:26 <rdrop-exit> (walking the dogs)
00:03:08 <rdrop-exit> (on or near the beach)
00:03:47 <tp> i had a friend long ago who did his apprenticeship at WRE in Adelaide, they had a large truck with diesel generator and a aircraft searchlight on it. He said they would take it down the beach with a UV filter on it and UV goggles and watch couple canoodling in the dark
00:04:05 <rdrop-exit> naughty
00:04:22 <tp> he said at time the couples seemed like they were getting a bit hot in the dark ...
00:04:25 <tp> lol
00:04:37 <tp> Weapons Research had all the cool gear
00:04:46 <rdrop-exit> I can imagine
00:05:44 <tp> he was young then, hes a old man like me now
00:05:56 <rdrop-exit> After I'm done with my coffee, I'm going to relearn LaTex and Tex, it's been so long I need a refresher.
00:06:11 <tp> it will come right back :)
00:06:15 <tp> like riding a bike
00:07:10 <rdrop-exit> I hope so, but I doubt it very much :)
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00:09:12 <tp> I wrote a Tex class file around 2001
00:09:31 <tp> it was called film.cls and was a class file for screenplays
00:09:47 <rdrop-exit> cool
00:10:11 <tp> Lyx might serve as a gentle reintroduction ?
00:10:32 <tp> it's a wysiwyg front end to LaTeX
00:10:59 <rdrop-exit> I did a bunch of stuff in groff way back, I was late switching to TeX/LaTeX.
00:11:39 <rdrop-exit> Or actually back then it was nroff or troff, not yet groff
00:11:39 <tp> i released film.cls under the gpl and about 5 years later I received a email from a guy in Sweden with improvements in a difference file, it was like a christmas present!
00:11:52 <rdrop-exit> nice
00:12:07 <tp> that was the first time I ever had that
00:12:51 <tp> the second time I released a X86 'micro and prom' burner designed to be general purpose, written in C
00:13:33 <tp> 6 months later I received a complete rewrite by a C hacker who also wrote a driver for my hardware as I was using direct memory access
00:14:44 <rdrop-exit> cool
00:15:31 <tp> thats pretty much it so far, my Forth stuff has been tried by a few but it's a bit too much for beginners
00:16:28 <rdrop-exit> It's difficult to write anything for newbie audiences
00:17:15 <tp> a Internet user of some of my Forth stuff dropped by here the other week as he was driving from victoria to queensland and passing thru my town. Hes a Windows user learning Mecrisp-Stellaris Forth but with only some BASIC embedded behind him
00:18:06 <tp> I fired up my FreeBSD system and showed him my development environment uploading source at 460800 baud from the editor and was greeted by a blank expression, brain lock
00:19:14 <tp> it was sad to see as he had been going so well
00:21:24 <rdrop-exit> Were you able to get through eventually
00:21:28 <rdrop-exit> ?
00:21:44 <tp> no
00:21:57 <tp> he wasnt here for long and had ben driving long hours
00:22:09 <rdrop-exit> Ah, too bad
00:22:25 <tp> i couldnt even get thru on the subject of the importance of bitfields
00:22:44 <tp> i tried every angle I could think off
00:23:22 <tp> his interest in Forth stemmed from a desire to build control gear for a model railway, plus he had been doing electronics all his life
00:23:47 <rdrop-exit> wow
00:24:24 <tp> happily I am corresponding with a Forth learner named Yuri in Russia who is way smart and gets it all
00:26:54 <tp> Yuri emailed code that tested 'number' on various number types and his results. I hadnt got around to that Word yet so it was a great shove to get a clue
00:27:12 <rdrop-exit> cool
00:28:13 <tp> my ex partner did her degree and master in LaTeX
00:28:22 <tp> and I did all her IT and setup
00:28:40 <tp> she got HD for everything
00:28:59 <tp> Im assuming you know bibtex ?
00:29:37 <rdrop-exit> Yes, at least I did
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00:29:51 <tp> it will all come right back :)
00:30:49 <tp> when she handed me her university 'style guide' I was flabbergasted, it was straight out of a Word Processor and all the samle references and citations were typed by hand
00:31:20 <tp> i could tell because the references and citations had errors being seperately typed
00:31:33 <rdrop-exit> I'm downloading the MacTeX-2019 distribution as we speak
00:31:54 <rdrop-exit> 3.9G!
00:32:28 <tp> I dont know why it is but every university thinks theyre a special flower and must have their own style of harvard or whatever citations
00:32:33 <tp> wowo!
00:32:50 <tp> so I had to write a class file for her university also
00:33:35 <tp> tex is pretty big
00:33:53 <tp> I was compiling it only a few days ago and after a couple of hours I killed it
00:34:07 <rdrop-exit> Apparently the MacTeX distribution comes with just about everything
00:34:14 <tp> yeah
00:34:32 <tp> all tex distros are huge thesedays
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00:40:05 <tp> how sweet! worked first time
00:40:08 <tp> : ms  ( u --  )
00:40:08 <tp>    [
00:40:08 <tp>    $3e01 h,    \ subs	r6, #1
00:40:09 <tp>    $d1fd h,    \ bne.n	8 <loop>
00:40:11 <tp>    ]
00:40:13 <tp>  ;
00:40:35 <tp> thats cortex-m (thumb) inline assembly 
00:41:03 <rdrop-exit> cool
00:41:32 <tp> write the assembler, assemble it then paste into Mecrisp-Stellaris Forth
00:41:49 <tp> write the assembly source I mean
00:42:40 <tp> see ms 
00:42:41 <tp> 200003AE: B500  push { lr }
00:42:41 <tp> 200003B0: 3E01  subs r6 #1
00:42:41 <tp> 200003B2: D1FD  bne 200003B0
00:42:41 <tp> 200003B4: BD00  pop { pc }
00:43:49 <tp> so it's a 8 byte delay program atm, not yet calibrated for milliseconds as my scope isnt set up here yet
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17:18:17 <dave9> re
17:18:49 <tabemann> hey
17:19:22 <tp> hey tabemann how goes your hashforth ?
17:19:32 <tp> gday dave9
17:19:44 <tabemann> I'm thinking of adding fixed point arithmetic
17:19:49 <tp> nice!
17:20:08 <tabemann> it's an easy change, one that does not require any runtime work
17:20:38 <tabemann> I could add floating point, but FP has its disadvantages, and when I get this on an MCU I likely won't have an FP unit
17:20:44 <tp> I've been playing with inline machine code with Mecrisp-Stellaris 
17:21:05 <tp> the Cortex-M4's have a FPU I believe
17:21:19 <tp> the cortex-m0's and M3's dont
17:21:21 <tabemann> yeah
17:22:41 <WickedShell> FPU is optional with a M4 though
17:23:05 <tp> ah
17:23:39 <tp> I've spent all my time on a cortex-m0 so far, I'll be up to speed in about another 10 years I rekon ;-)
17:34:01 <tabemann> know what
17:34:10 <tabemann> I'm going to have to implement double cell arithmetic
17:34:54 <tabemann> because without it multiplication and division will result in loss of significance
17:41:06 <tp> yeah
17:41:25 <tp> I have doubles along with fixed point in Mecrisp-Stellaris 
17:43:16 <tabemann> of course doubles in 64-bit hashforth seem excessive
17:43:43 <tabemann> but I'm going to keep them in for the sake of source-compatibility with 32-bit versions of hashforth
17:43:45 <tp> lol, so it does
18:01:12 <tabemann> gonna go head home to have some dinner, so bbl
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