| --- Log opened Mon May 01 00:00:49 2017 |
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| 01:56 | | * McMartin bends the single-tasking graphics syscalls to his will. |
| 01:56 | <&McMartin> | I wonder if these are actually efficient enough to run my standard CCA display. |
| 02:02 | <&McMartin> | Also, looks like the compiler I'm using actually is being careful to stick to ARMv3 code. |
| 02:40 | | chatter [NSkiwiirc@Nightstar-sra44u.members.linode.com] has joined #code |
| 02:40 | < chatter> | hey guys |
| 02:40 | < chatter> | allah is doing |
| 02:41 | < chatter> | sun is not doing allah is doing |
| 02:41 | < chatter> | to accept Islam say that i bear witness that there is no deity worthy of worship except Allah and Muhammad peace be upon him is his slave and messenger |
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| 03:45 | <&McMartin> | Answer: yep, this is totally a graphics display being updated at an acceptable speed (on an RPi3 at least) with what are basically glorified VT100 escape codes |
| 03:45 | <&McMartin> | Except it controls the entire bitmap plotting engine |
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| 04:50 | <~Vornicus> | What. |
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| 05:13 | <&McMartin> | Uh, one moment while I actually call up some examples~ |
| 05:15 | <&McMartin> | OK, so |
| 05:15 | <&McMartin> | Also, woof, my emulator totally can't run this full-speed~ |
| 05:17 | <&McMartin> | OK, so, suppose I want to set 640x480x256 mode |
| 05:17 | <&McMartin> | I can do that in BASIC with the command MODE 28 |
| 05:17 | | chatter [NSkiwiirc@Nightstar-3jqj0m.members.linode.com] has joined #code |
| 05:17 | <&McMartin> | Or I can use the BIOS-equivalent and do a syscall to the videodisplay unit |
| 05:18 | | mode/#code [+b *!*NSkiwiirc@*.members.linode.com] by McMartin |
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| 05:18 | <&McMartin> | Which is VDU 22, 28 |
| 05:18 | <&McMartin> | OR |
| 05:18 | <&McMartin> | I can say PRINT CHR$(22);CHR$(28); |
| 05:19 | <&McMartin> | The BIOS graphics routines also can draw rectangles and stipple patterns and lines and ellipses and, uh, triangles |
| 05:19 | <&McMartin> | Sadly, it also seems that printf() is too cunning to let this actually happen~ |
| 05:20 | <&McMartin> | But the "write string to console" syscall works just fine. |
| 05:20 | <&McMartin> | So I implemented CCA with it. |
| 05:21 | <&McMartin> | It occurs to me to wonder if write()ing to the stdout handle would work where printf did not. |
| 05:21 | <&McMartin> | Or if there's a filter all of libc puts in. |
| 05:31 | <~Vornicus> | do that VDU that you do |
| 05:32 | | * McMartin suspects VDU is "Video Display Unit" |
| 05:37 | <&McMartin> | Hmmm. I should finish trying to optimize my terrible c64 code now |
| 05:37 | <&McMartin> | Except MoO is right here |
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| 10:39 | <@gnolam> | https://groups.google.com/forum/message/raw?msg=comp.lang.ada/E9bNCvDQ12k/1tezW2 4ZxdAJ |
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| 12:52 | < Jessikat`> | :) |
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| 17:46 | <@Azash> | https://semiaccurate.com/2017/05/01/remote-security-exploit-2008-intel-platforms / |
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| 18:24 | < RchrdB> | note to self |
| 18:25 | < RchrdB> | if someone already translated all the strings in a program using gettext, you can redefine the _() macro they used to claw more debugging information out the damn program |
| 18:26 | < RchrdB> | like adding __FILE__ and __LINE__ to it when your problem is that they used identical error messages for several different exceptions raised in different places |
| 18:27 | <@Tamber> | :) |
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| 18:53 | <&[R]> | Nice |
| 19:17 | <@Syloq> | Azash; good find. Seems to be spreading around my workplace like wildfire now. |
| 19:23 | <&[R]> | And surprise surprise! |
| 19:23 | <&[R]> | It's the fucking network CPU feature |
| 19:30 | <&McMartin> | Another cheerful demonstration that sufficiently advanced IT is indistinguishable from malware~ |
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| --- Log closed Tue May 02 00:00:50 2017 |