| --- Log opened Mon Nov 04 00:00:09 2013 | ||
| FreezingCold | How could something like OpenRISC and ARM be compared? | 02:28 |
|---|---|---|
| poke53281 | The question is difficult, because I don't really understand what you mean. | 05:11 |
| poke53281 | There are a lot of similarities between the ARM 64-Bit architecture | 05:12 |
| poke53281 | The number of registers is the same. The instruction size is always 4 byte. | 05:12 |
| poke53281 | They have also one register which is always zero. | 05:12 |
| poke53281 | Both use 3 operand opcodes. | 05:13 |
| poke53281 | Both don't have conditional instructions | 05:14 |
| poke53281 | Separate dedicated PC register | 05:15 |
| poke53281 | Both have special load and store instructions | 05:15 |
| poke53281 | The last three are not true for the 32-Bit ARMs | 05:17 |
| poke53281 | And the numbers of registers where 16 on 32-Bit ARMs, not 32. | 05:17 |
| poke53281 | OpenRISC has a delayed slot which ARM don't has. | 05:17 |
| olofk_ | morning | 06:45 |
| stekern | morning | 06:47 |
| hansfbaier | afternoon | 06:47 |
| stekern | my deafly coded envelope code done remotely seems to work fairly well | 06:48 |
| stekern | a couple of bugs in there, but not to bad ones | 06:49 |
| stekern | I went for a sw only solution | 06:52 |
| n2nn | Hi! | 12:47 |
| n2nn | I am new to Openrisc project, but I am sure i will utilize it in my next project! | 12:51 |
| _franck_ | n2nn: great, welcome the openrisc community | 13:08 |
| _franck_ | what will be your next project ? | 13:08 |
| n2nn | I would really like to write a bare metal openRisc Jamma game. | 13:09 |
| n2nn | Hi _franck_ :-D | 13:09 |
| * _franck_ is looking for Jamma on google | 13:12 | |
| n2nn | old arcade games. | 13:14 |
| n2nn | it is just the connector. | 13:14 |
| n2nn | .. connector gives power, botton-, joystick, audio- and video-controls. | 13:15 |
| n2nn | a pcb that is a game. | 13:15 |
| n2nn | .. with a jamma-connector. | 13:15 |
| _franck_ | ok great | 13:15 |
| n2nn | currently trying to figure out how to do graphics on the orsoc | 13:16 |
| _franck_ | I didn't know arcade games were configured like this | 13:16 |
| _franck_ | we have a frame buffer | 13:17 |
| _franck_ | what king of board do you have ? | 13:17 |
| n2nn | non right now. state: advanced n00b | 13:18 |
| n2nn | got opportunity to get a de0, but would like to have the official dev-board | 13:18 |
| n2nn | not sure if the old board is still available, and the new board with the ddr-formfactor - i dont get it. is is done? useable? how to connecto to it? | 13:19 |
| _franck_ | offical dev-board ? | 13:19 |
| _franck_ | ok the opencores dev board | 13:19 |
| _franck_ | I mean orpsoc dev board | 13:20 |
| _franck_ | arrgh ORSoC dev board | 13:20 |
| n2nn | the ddr-formfactor one? | 13:21 |
| _franck_ | you should get a board with a display out connector | 13:21 |
| n2nn | i heard that display out is easy to solder yourself. | 13:21 |
| n2nn | but will keep that in mind. | 13:21 |
| n2nn | no idea how to thest a bare metal game in a VM... dont think it will output something in the vm, but only on the original board. | 13:22 |
| * n2nn got lots to learn | 13:22 | |
| _franck_ | you could test it with a simulator but that would be very slow | 13:24 |
| n2nn | ok, so to get a feel for the archived speed, I HAVE TO use the [real|dev] board | 13:26 |
| n2nn | hm | 13:28 |
| _franck_ | yes. I'll find a graphic accelerator on opencores. It has libraries for bare meta applications | 13:28 |
| _franck_ | http://www.idt.mdh.se/utbildning/exjobb/files/TR1397.pdf | 13:28 |
| n2nn | i read alot from there already | 13:29 |
| n2nn | today | 13:29 |
| n2nn | i found it some weeks ago, looked promising | 13:29 |
| n2nn | but i dont think it is the right tool for me | 13:29 |
| n2nn | i looks very klunkey ... and the final notes state, that it is a bit slow | 13:30 |
| n2nn | thinking of doing it just with memory, and a dedicated or1k | 13:30 |
| n2nn | and speed | 13:30 |
| n2nn | but that seems to be the best graphics processor | 13:31 |
| _franck_ | but you won't draw a line faster in software than using an hardware accelerator | 13:32 |
| n2nn | I dont need lines, just sprites and tiles. | 13:34 |
| n2nn | but you are true, of course. | 13:34 |
| n2nn | guess orgfx is the only reasonable alternative | 13:41 |
| stekern | n2nn: I think you'll get pretty far with just a framebuffer | 15:15 |
| n2nn | thanks a lot, i will try that first. :) | 15:20 |
| ninn2 | hey | 17:30 |
| ninn2 | I am currently looking for a dev board with a decent spec. just speed. | 17:51 |
| ninn2 | cant decide on one... | 17:52 |
| stekern | ninn2: just curious, what type of games are you considering? | 19:15 |
| ninn2 | either a shootemup, or a metroidvania... :-D | 19:16 |
| ninn2 | i will do several games, as long as it runs on an OR | 19:20 |
| stekern | cool, if you just have modest enough performance demands I don't see anything standing in your way | 19:21 |
| stekern | with "modest" I mean, realistic. something close to the games from mid-nineties should be perfectly doable without hw accel | 19:34 |
| ninn2 | =D | 19:34 |
| ninn2 | Whew..! That's a load off my mind! | 20:00 |
| rah | did you see the silicon spectrum kickstarter campaign for a free graphics accelerator core? | 20:57 |
| rah | it's pretty cheeky | 20:57 |
| rah | "we're going out of business, please give us $200000 and we'll release the source code for our product" | 20:58 |
| rah | pretty much ransoming their IP | 20:58 |
| rah | actually, it's not just "cheeky", it's downright disgusting | 20:58 |
| rah | if you're going out of business, just release the source anyway | 20:59 |
| vxe | rah: maybe they license technologies from other companies that also have to be paid off | 21:10 |
| ninn2 | then they shall keep it. | 22:10 |
| --- Log closed Tue Nov 05 00:00:11 2013 | ||
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