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02-14-2006, 02:16 AM
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Points: 13.81 Donate | |  Sound on 2.01+ question...
Yes, Yes, I know that sound does not work on 2.01+ with the current e-loader and homer's rin, yet, why does PSP Media Center and SNES emu have sound when technicly they shouldn't? What is the programing code and exicution that differs between the sound output of these programs? My current guess is that PSPMC and SNES emu don't rely on the sound chip within the psp and try to stream to the speakers directly, where as RIN uses the chip on the motherboard. But that's just a guess. I haven't seen any code, or proof to this.
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02-14-2006, 02:18 AM
|  | Senior Member | | Join Date: Dec 2005 Location: Australia
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Points: 1.14 Donate | | | No, its just homeer's rin etc hasn't been updated to use sound. It emulates the sound as such, which is the part id assume needs fixing. Snes emu has been around for a while and this emulation is fine (a little slow on 2.01+). Its not that 2.01+ doest have sound, its just some applications havent been fixed to use/and or emulate sound on these firmware versions.
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02-14-2006, 02:22 AM
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Originally Posted by kernal32 No, its just homeer's rin etc doesnt. Its not that 2.01+ doest have sound, its just some applications havent been fixed to use sound on these firmwares. | Ok, but I'm wondering why they need to be fixed (yes, the e-loader is beta, I know that...but is there some other reason?). Is it a call difference, or something else? Mind you, I know a fair bit of code and how electronics work, so give me all of the boaring nerdly details.
__________________ My mayor is a Teflon coated slime bag
Hopefully he'll learn not to try and push quite possibly unconstitutional bills though the state assembly and then waste tax money fighting it in court. Plus, he has failed the bar exam 4 times . Disclaimer: These are my opinions, and I am wholy responsible for them. |
02-14-2006, 02:28 AM
| | | Senior Member | | Join Date: Dec 2005 Location: Australia
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Points: 1.14 Donate | | | You'd have to talk with the developers why they are having problems. Id say its either something to do with performance, eg, when they have the sound being emulated it slows everything down really bad, so they wanted to release it without sound rather than not at all. The other possibility is that yeah, there are just diff shyte they need to do to get it running (which is prolly more likely) under the eloader and its restrictions. Eg, they use a different method to emulate the sound rather than the snes etc and maybe it requires kernel mode so they're having to re-do it. Unsure. But nothing u'd be able to do without the source
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02-14-2006, 02:29 AM
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Originally Posted by kernal32 You'd have to talk with the developers why they are having problems. Id say its either something to do with performance, eg, when they have the sound being emulated it slows everything down really bad, so they wanted to release it without sound rather than not at all. The other possibility is that yeah, there are just diff shyte they need to do to get it running (which is prolly more likely) under the eloader and its restrictions. Eg, they use a different method to emulate the sound rather than the snes etc and maybe it requires kernel mode so they're having to re-do it. Unsure. But nothing u'd be able to do without the source | Ok, so this is an individual problem. Thank you for the clarification.
__________________ My mayor is a Teflon coated slime bag
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02-14-2006, 06:49 AM
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Points: 7.31 Donate | | | I WOULD ASSUME that the Sound part of Rin and other affected programs use some kind of kernal access, therefore not working on 2.01 but is working on lower version. But i'm kind of crapping on there...
But yes obviously the softwre needs to be re-written to support 2.01(+) firmware.
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02-14-2006, 11:15 AM
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Originally Posted by jcoolkatzerg Ok, but I'm wondering why they need to be fixed (yes, the e-loader is beta, I know that...but is there some other reason?). Is it a call difference, or something else? Mind you, I know a fair bit of code and how electronics work, so give me all of the boaring nerdly details. | syscalls probably, or else snes emu was designed to run in user mode.
dont forget, most homebrew was designed with -2.0 in mind, thus they used kernel programming, which gives better performance for less coding. (these homebrews were made a long time ago, in psp terms, so theyre out of date now, they didnt have an eLoader back then!)
as ppl start to develop using the new eLoader, they will code the programs to use a similar sound mechanism to snes emu.
hope this helped. | |
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