| --- Log opened Sun Jan 21 00:00:29 2018 |
| 00:07 | | celticminstrel [celticminst@Nightstar-gil1m1.dsl.bell.ca] has joined #code |
| 00:07 | | mode/#code [+o celticminstrel] by ChanServ |
| 00:10 | | * McMartin sips tea |
| 00:10 | <&McMartin> | I should work on fixing an ancient codebase |
| 00:10 | | * McMartin goes back to sipping tea |
| 00:10 | <@celticminstrel> | An ancient broken codebase? |
| 00:18 | <&McMartin> | I need to be more systematic about addressing that UQM/GCC compiler drift stuff from last week. |
| 00:24 | < Degi> | Compiler drift? |
| 00:25 | <&[R]> | It's where you give the compiler a BRK and TRN instruction at the same time. |
| 00:29 | <@TheWatcher> | http://i.imgur.com/BbgL7x3.gif |
| 00:29 | <&McMartin> | It's where what programs the compiler accepts changes over time |
| 00:30 | <&McMartin> | And in particular, the 0.7.0 UQM sources don't build on any GCC after about 4.3. |
| 00:30 | <&McMartin> | And starting at 7.x that changes from "trivial linker error" to "your header guard defines conflict with our internals so suddenly you're missing critical types and everything explodes." |
| 00:31 | <&McMartin> | Investigating the latter also showed that many of the header guards also conflicted with one another, and that this was maybe not the way to go |
| 00:31 | <&McMartin> | So I need to throw together a little guard generator and unleash it on the code, but that feels suspiciously like work so I haven't really been doing that. |
| 00:31 | | Kindamoody is now known as Kindamoody[zZz] |
| 00:46 | <@celticminstrel> | Heh. |
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| 01:32 | | * McMartin puts together a quick scanner. "Looks like 195 files need updating." |
| 01:32 | <&McMartin> | Time for me to remind myself how to use sed. |
| 02:42 | <&[R]> | I'm guessing for a non s/// usage? |
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| 03:24 | <&McMartin> | It was in fact an s///g usage, but I needed to remember which option was -i and I also needed to re-confirm that \b was the thing I wanted it to be. |
| 03:24 | <&[R]> | Fair enough |
| 03:25 | <&McMartin> | (I don't use sed very much.) |
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| 03:58 | <&[R]> | Stack based math processors hurt my head |
| 03:58 | <&McMartin> | Like, RPN? |
| 03:58 | <&[R]> | Maybe? |
| 03:58 | <&[R]> | dc [+z1<r]srz1<rp |
| 03:59 | <&McMartin> | More or less. |
| 03:59 | <&McMartin> | https://en.wikipedia.org/wiki/Reverse_Polish_notation |
| 03:59 | <&McMartin> | Confirmed that this is what dc uses |
| 03:59 | <&[R]> | https://stackoverflow.com/questions/450799/shell-command-to-sum-integers-one-per-line <-- from that, search for obscurity |
| 04:06 | <&[R]> | Though I first encountered it in Factorization [the Minecraft mod] (though the system it appears in wasn't exactly user-friendly, and no-one uses it) |
| 04:06 | <&McMartin> | I first encountered it because it was how you operated HP's calculators back in the 1990s. |
| 04:07 | <&[R]> | O.o |
| 04:07 | <&McMartin> | But it made a Hell of a lot more sense than [+z1<r]srz1<rp. |
| 04:07 | <&McMartin> | And you can see your stack as it grows and shrinks. |
| 04:07 | <&[R]> | Yeah |
| 04:07 | <&McMartin> | (In part also why I figured I could just say "RPN" and be understood >_>) |
| 04:08 | <&[R]> | Yeah, I knew about RPN |
| 04:08 | <&[R]> | Factorization's (Fz) system gives you two constants to play with: 0 and 1. Which makes doing any form of math annoying as hell. |
| 04:09 | <&McMartin> | That is more constrained than one would like. |
| 04:09 | <&[R]> | Yeah |
| 04:09 | <&McMartin> | On the plus side, people who learned to program by way of Minecraft will discover that systems like the Z80 and 6502 are unimaginable luxury. |
| 04:10 | <&[R]> | Some of the redstone CPUs are crazy |
| 04:11 | <&[R]> | Though the main issue IMO is Minecraft has no nice way to display things |
| 04:11 | <&[R]> | Due to how dust and strong/weak signals work |
| 04:14 | <&[R]> | Input can be just as bad too actually |
| 04:44 | <~Vornotron> | [R]: having written arithmetic parsers it's *vastly* easier to handle stack-based. essentially what you do to handle regular infix stuff is turn it into a stack |
| 04:57 | <@mac> | McMartin: I recall when we first started looking at RISK assembler back in my university classes, the 'load constant' instruction was unaccountably left unmentioned. I spent some time puzzling out how you could program under those circumstances. I concluded you could use a comparison operation between register 0 (which always contains 0) and the PC register (which will always be >0) in order to generate a constant 1, then math your way to |
| 04:57 | <@mac> | whatever value you needed. |
| 04:57 | <@mac> | Via addition and multiplication, I mean. |
| 04:58 | <&McMartin> | addi r1, r0, #nnnn |
| 05:00 | <@mac> | McMartin: Constant value arguments weren't mentioned either. (Well they were, but not until later when I'd been informed of the load-constant functionality.) |
| 05:03 | <&[R]> | Vornotron: yeah, I don't doubt that |
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| 08:38 | | * macdjord :-/ |
| 08:38 | <&McMartin> | ? |
| 08:38 | <@macdjord> | Twice today, my Win10 laptop has totally frozen up while watching a YouTube video in Firefox. |
| 08:40 | <@macdjord> | I have no idea why. |
| 08:44 | <@macdjord> | No Windows updates installed since the 10th. |
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| 10:51 | < Mahal> | memory flash leak? |
| 11:19 | <@TheWatcher> | Youtube still serves flash video? O.o |
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| 11:54 | <&[R]> | Reminded of the guy who told me that learning C/C++ was useless, everything was going to be written in flash in the future. Even kernels. Even AAA video game titles. |
| 11:56 | <&[R]> | This was ~2004 BTW |
| 11:59 | < Jessikat> | lol |
| 12:03 | <@TheWatcher> | wat |
| 12:28 | < Vorntastic> | Lol. |
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| 13:58 | <&ToxicFrog> | ... |
| 13:59 | <@ErikMesoy> | megawat |
| 14:07 | < Degi> | The Future will be based on JavaScript! Even embedded µC's! |
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| 17:48 | | * Tamber peers up, wats, headshakes sadly. |
| 17:48 | <@Tamber> | "We rewrote the kernel in Flash, because things were running too quickly." |
| 17:49 | <&[R]> | I know right? |
| 17:50 | <@Tamber> | "But your bootsplash screens now look fucking *amazing*." |
| 17:50 | <&[R]> | Not like that's something limited to flash |
| 17:51 | <@Tamber> | No, but if you're going to pull something that stupid, there may as well be one upside~ |
| 17:51 | <&[R]> | Fair enough |
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| 21:00 | <@TheWatcher> | Tamber: oh, so /that/ explains uefi~ |
| 21:01 | <@macdjord> | Mahal, TheWatcher: Not using flash video (though I think YT does still offer it as a legacy format). Besides, this was a /hard/ lock - total freeze, not even the capslock light responding, last 0.1s of audio playing in a continuous loop. A memory leak should not be able to do that. |
| 21:01 | < Mahal> | I've had my browser take down my PC before now |
| 21:04 | <&[R]> | Speaking of UEFI, should I put effort into learning how to boot through it, or continue using BIOS emulation? I'm not using systemd so I don't have those vulnerabilities to worry about. |
| 21:06 | <@macdjord> | Mahal: I probably have, but not often. (Well, not often in any modern Windows version.) |
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| 21:44 | < Degi> | Once my PC sort-of froze in minecraft with an animation replaying over and over after a lightning strike hit near my home, which I guess corrupted parts of the memory or so. A restart fixed that though, no permanent damage. |
| 21:45 | <&ToxicFrog> | Yeah, that usually means the system has hardlocked but the sound hardware is still running and just endlessly replaying whatever was in the output buffer. |
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| 21:54 | | * Mahal nods at ToxicFrog |
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| 22:17 | < Degi> | But the video hardware was also working and I think that part of the animation may have been CPU-based. Maybe the stack got garbled. |
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| --- Log closed Mon Jan 22 00:00:31 2018 |