| -!- erant is now known as Erant | 00:34 | |
| Erant | I'm trying to build the orpsocv2 for a xilinx board, but for some reason I keep getting "Macro reference `OR1200_OR32_LWS is not defined" from XST. | 00:34 |
|---|---|---|
| Erant | I'm running the 14.3 version of the Xilinx tools, is that unsupported? | 00:35 |
| Erant | Actually. There's an outdated or1200_defines.v in the atlys directory. | 00:53 |
| Erant | Is there a known svn tag where the Atlys board worked? | 00:55 |
| @juliusb | Erant: just update the or1200_defines to the newest version | 02:52 |
| @juliusb | olofk: hah, yep I like that one the best :) | 02:55 |
| @juliusb | olofk: I think your pi has been pretty stable, I haven't noticed any disconnects | 03:00 |
| Erant | juliusb: Yeah, there's other stuff that seems to have gone out-of-sync. | 04:19 |
| Erant | Trying to repair, we'll see if I can make it work. | 04:19 |
| Erant | At least I know it's not my tools being wonky. | 04:19 |
| stekern | olofk: yeah, I found it myself yesterday, as an addition to the daily dilbert.com | 05:17 |
| stekern | yours is good too, soon I've got nothing else to do than read geeky webcomics ;) | 05:17 |
| stekern | Erant: lemme take a look, that LWS thing sounds like I'm partly responsable for breaking | 05:19 |
| stekern | Erant: Should be fixed in svn now | 06:31 |
| stekern | thanks for letting us know | 06:32 |
| mor1kx | [mor1kx] skristiansson opened pull request #2: Connect lsu address directly to ALU adder (master...for-openrisc) http://git.io/T7HxwQ | 07:47 |
| stekern | juliusb: a daily dose of patches for you to digest ;) | 07:49 |
| stekern | I reckon the trade off on resource usage/speed is pretty good on that, I got 0.2% resource increase and 23% fmax increase when test synthesising cappucino on cyclone iv before and after applying that | 07:51 |
| stekern | sorry, 13% fmax increase | 07:53 |
| stekern | so ungodly cold here so I can't hit the right keys... | 07:54 |
| @juliusb | stekern: looks good, will have a read through soon | 11:48 |
| stekern | I can run some more tests synthesis on the espressos if you'd like, but I think that should make sense on them | 11:52 |
| stekern | sim tests (of course) passes with it | 11:52 |
| stekern | s/tests synthesis/synthesis tests | 11:53 |
| zewan | Hi all. I have a question. What is the maximum clock frequency could get in ASIC? | 12:14 |
| stekern | zewan: not my area of expertise, but that qustion need to be more specifially defined for someone to be able to answer it. at least the following information is missing 1) Maximum clock frequency of what? 2) what ASIC technology are you going to use? | 12:24 |
| stekern | I assume or1200 on 1) | 12:25 |
| zewan | 1) or1200 | 12:26 |
| zewan | 2) I thought that this processor has already been implemented in ASIC | 12:26 |
| stekern | yes, there are several companies that has used or1200 in ASICS | 12:28 |
| zewan | so, do you know max freq of those chips? | 12:30 |
| stekern | samsung is one | 12:30 |
| stekern | http://www.diytrade.com/china/pd/8199897/MP3_WMA_Decoding_chip_AX3008.html | 12:31 |
| stekern | there is another | 12:31 |
| zewan | Ok Thanks, but I didn't get the answer. Is there any SoC comparable to ARM Cortex(not fpga)? | 12:35 |
| stekern | yes you got the answer to your question "I thought that this processor has already been implemented in ASIC" | 12:37 |
| stekern | I think the mp3 decoder is running at 100 MHz, not sure how that is interesting, since I have no idea what technology they used in that chip | 12:38 |
| stekern | in return, you didn't answer my question: what ASIC technology are you going to use? | 12:40 |
| stekern | so until you've answered that, I suggest we assume 10 um | 12:41 |
| stekern | 1 MHz is probably _very_ optimistic | 12:42 |
| zewan | Thank you again. I think the problem in my english )) | 12:45 |
| zewan | I just waiting for answer like: XXX company implement or1200 SoC working on 700MHz | 12:49 |
| stekern | juliusb: peters mail got me thinking about some cool (long term) mor1kx features | 15:36 |
| stekern | for a cappuccino without delay slot | 15:38 |
| stekern | since we have the flag setting decoupled from the branch, it should be relatively easy to do very simple branch prediction by only looking at that | 15:50 |
| stekern | it has really nothing to do with his mail, but the thread of thought started there | 15:59 |
| stekern | since he probably wants the register output in decode stage to resolve the branches already there | 16:00 |
| stekern | I mean l.jr and l.jalr as well | 16:02 |
| stekern | perhaps we want that too | 16:03 |
| stekern | for cappuccino | 16:03 |
| stekern | well, well, one step at a time, something worth investigating in the future | 16:04 |
| stekern | we are not even resolving branches to immediates in decode stage | 16:04 |
| stekern | yet | 16:04 |
| stekern | or we are, but we are just registering them to execute stage | 16:05 |
| stekern | baby steps, baby steps... I want to push out my current pipeline changes nice and slowly, with bisectable commits (as you may have noticed) | 16:06 |
| andresjk | poke53281: very nice work the web-based emulator you did, congrats! | 19:41 |
| poke53281 | Hi | 19:43 |
| poke53281 | Thanks | 19:43 |
| poke53281 | Only a few weeks of work. First in C, than the port to Javascript. | 19:48 |
| andresjk | oh, it runs very fast for been made in interpreted language. Any future plans for the project? | 19:53 |
| poke53281 | Running a C64 emulator running Zork in the framebuffer. Then I have an emulation chain x86->Javascript->MOS6502->ZMachine *g* | 19:55 |
| poke53281 | 2. Include a flash memory for a little bit more space and on demand reading from the webserver. | 19:56 |
| poke53281 | 3. Improve the TLB handling. Maybe rewrite the miss handler in Linux to support multiple ways. | 19:56 |
| andresjk | nice | 20:07 |
| stekern | took a while to grasp what your speaking about, but yeah, very cool stuff poke53281 | 20:16 |
| stekern | s/your/you're | 20:16 |
| poke53281 | for the other people in the chatroom. I am talking about | 20:19 |
| poke53281 | http://simulationcorner.net/opencore/jor1k.html | 20:19 |
| _franck_ | indeed, very cool stuff | 23:16 |
| @juliusb | poke53281: that is one of the coolest things I've ever seen :) | 23:37 |
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