#emc-devel | Logs for 2011-10-14

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[15:01:21] <IchGucksLive> hi all im trying to change the color of the G0 dividing this from the G1
[15:02:14] <IchGucksLive> someone can tell me where in axis the real colors FFFFFF for the running lines are set
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[15:37:33] * cradek stands back while everyone suggests limit3
[15:37:51] <IchGucksLive> to ?
[15:38:04] <IchGucksLive> ah 3 colors limit
[15:38:06] <cradek> on the mailing list
[15:39:07] <cradek> IchGucksLive: http://www.linuxcnc.org/docs/devel/html/gui/axis.html#_the_x_resource_database
[15:39:34] <cradek> check the given example files
[15:42:45] <IchGucksLive> im on
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[16:07:17] <IchGucksLive> *Togl.backplottraverse: #404080 cradek thats it
[16:12:18] <IchGucksLive> color_names = [('back', 'Background'), 'dwell', 'm1xx', 'straight_feed', 'arc_feed', 'traverse',
[16:12:19] <IchGucksLive> 'backplotjog', 'backplotfeed', 'backplotarc', 'backplottraverse','backplottoolchange','backplotprobing','selected',
[16:12:21] <IchGucksLive> 'tool_ambient', 'tool_diffuse', 'lathetool', 'overlay_foreground', ('overlay_background', 'Background'),
[16:12:23] <IchGucksLive> 'label_ok', 'label_limit','small_origin', 'axis_x', 'axis_y', 'axis_z', 'cone',]
[16:12:33] <IchGucksLive> this are the colornames thar axis uses
[16:13:33] <IchGucksLive> hat stands m1xx for ?
[16:13:39] <IchGucksLive> what
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[22:28:18] <andypugh> [13553.334356] hostmot2: Unknown symbol __udivdi3
[22:28:29] <andypugh> Any ideas? Cant find it in the EMC2 sources anywhere.
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[22:33:18] <cradek> nm hostmot2.o doesn't show __udivdi3 for me
[22:33:45] <andypugh> That os because you don't have the same hostmot.o as me :-)
[22:33:54] <cradek> These are functions calls that the compiler generates to do 64bit
[22:33:54] <cradek> arithmetic operations (because they are not atomic instructions on a
[22:33:55] <cradek> 32bit processor).
[22:34:08] <andypugh> I think we googled the same web page :-)
[22:34:20] <cradek> are you trying to do math on long longs?
[22:34:23] <andypugh> So, I need to not do 64-bit maths then
[22:34:30] <andypugh> Yes.
[22:34:43] <andypugh> I can cast to 32 bits first.
[22:34:51] <andypugh> (Probably sensible in fact)
[22:35:06] <cradek> that sounds weird but you know what you're doing better than I do :-)
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[22:35:31] <andypugh> The new sserial boards have (in effect) a 96-bit buffer.
[22:35:56] <andypugh> They defintely return 48 bits of booleans at a time.
[22:36:27] <andypugh> And arbitrary-bitlength 2s-complement..
[22:36:59] <andypugh> But I can cast the latter to 32-bit types before the maths
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[22:46:15] <andypugh> Hmm, actually, this is more "interesting" than I thought.
[22:46:59] <andypugh> I have a 2-s complement signed int of arbitrary (but known) bit width in the bottom n bits of a u64..
[22:48:31] <cradek> and sometimes it's more than 32 bits long?
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[22:54:41] <cradek> Receiving objects: 100% (89445/89445), 45.38 MiB | 9.96 MiB/s, done.
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[22:54:56] <cradek> pretty sure I have the fastest access to the git repository...
[23:03:23] <andypugh> cradek: I don't know how long they will be. I am going to assume that the floats won't be longer than 32 bits.
[23:05:28] <andypugh> Then I can just shuffle them so the sign bit is in bit 31, then treat as a signed-32
[23:05:54] <andypugh> When I say "floats" I am talking about the pins, not the incoming data
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