similar to: FW: Re: Problem with Blackfin assembly optimizations -- bug in fixed_bfin.h?

Hi Jean-Marc, didn't get a reply to my last post (see below) -- do you have no idea what happens here? After some more tests, I disabled the DIV32_16 Blackfin optimizations and now get good quality on the Blackfin. But when I have overdrive on the input, things become very bad -- I'm not sure if this is really a filter stability issue like I wrote some weeks ago. I use the speex

Hi Marc, I encountered the problems even with older versions of speex, including 1.2beta2 and 1.1.12, too. I had no time in the last weeks to investigate this issue further, sorry. Hopefully, I'm able to do some more test the next days, but I have no real idea how to proceed Performance and quality seem to be o.k. for me if I deactivate the Blackfin optimizations inside the file

Hi, I just started to examine the DIV32_16 function (Blackfin ASM version), and wondered why the return value of the function inside 'fixed_bfin.h' is of type 'spx_word16_t', but the local variable 'res' which is returned by this function is of type 'spx_word32_t'. Is this a trick of optimization or a bug? (Same question for PDIV32_16 and MAX16, too!) best

Hi, when I compile with FIXED_DEBUG enabled, I get an error -- both when make tries to build testenc.o and when I try to link my app against the speex lib: lorenz@panelmaker:~/Blackfin/tests/speex_loopthrough$ make bfin-uclinux-gcc -c -g -I/home/lorenz/include -o main.o main.c bfin-uclinux-gcc -gl -elf2flt -L/home/lorenz/lib -o speex_through main.o -lspeex_debug -lspeexdsp -lm

Hi, I tried to figure out what the problem is -- but it seems to be totally different from what I expected. My status at the moment is: - computing results for "generic" and "Blackfin ASM" versions of the DIV32_16 function are the same, there is no "algorithmic bug" - Instead, there seems some sort of memory corruption: When I comment out the DIV32_16 function

Hello everybody, I'm currently trying to run speex on the Blackfin (BF-537) STAMP evaluation board unter uCLinux. Using 1.2 beta 3, I encountered problems when activating the Blackfin assembler optimizations. Without optimizations for blackfin, i.e. calling ./configure --enable-fixed-point --host=bfin-uclinux everything seems to work fine. But when I add the --enable-blackfin-asm flag to

Hi Jean-Marc, after some problems with getting svn to work here I finally made it. Problem is, you write that I cannot use libspeex and libspeexdsp at the same time now -- because I use a "live" system (mic-in -> speex_enc -> speex_dec -> headphone out) and I can run the AD1836 audio codec on 48 kHz only, I cannot use my program now (because I use speex resampling...) So I

Jean-Marc, Frank, I have stumbled across a similar situation regarding optimization. I seem to have a similar setup as Frank does with a fixed 48khz in and out. The wideband mode and ultra-wideband modes are really what I?m looking for. I have a test application that reads audio, downsample to 16kHz (or 32kHz), speex encode, speex decode, upsample back to 48kHz, and playback. If I remove

Frank Lorenz a ?crit : > And yes, the same "overflow" happens even when I disable Blackfin ASM > optimizations. Indeed, that shouldn't happen. Just to make sure I understand, so far there's two problems: 1) DIV32_16() in Blackfin assembly causes problems 2) The resampler overflows When you fix/workaround those two, is the encoder/decoder working correctly or are there

Dear Wine-Team, my name is Sascha Trott and would like to ask you, if I can use the Wine logo (Tux with a bottle of wine) for my home page about "German Wine Tutorials" (http://saschats-winepage.chapso.de/). I would be very happy, if you can send me some informations about. Yours sincerely, Sascha Trott _________________________________________________________________________ In 5

> -----Ursprüngliche Nachricht----- > Von: asl at math.spbu.ru, LLVM Developers Mailing List <llvmdev at cs.uiuc.edu> > Gesendet: 13.06.07 23:13:08 > An: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu> > Betreff: Re: [LLVMdev] LLVM binaries for Windows and more > > Hello, Andreas. > > > It seems that the generated ASM code cannot be assembled

Hi , I have a problem with Authentication.I don't no, where is the problem,Can anyone help me undestand this problem. Thanks in Advance here is some files: The configuration file dovecot.conf log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap pop3 login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login

Here some Blackfin inline assembly, mainly picked and adapted from speex. It's helps a little on my BF537 eval board. Julien -------- /** @file fixed_bfin.h @brief Fixed-point operations for the ADI BF5xx DSP family */ /* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: -

-----Original Message----- From: Robin Getz [mailto:rgetz@blackfin.uclinux.org] Sent: Saturday, June 16, 2007 12:11 AM To: Michael Shatz Cc: speex-dev@xiph.org Subject: Re: [Speex-dev] Blackfin inline assembler and VisualDSP++ toolchain >On Wed 13 Jun 2007 12:37, Michael Shatz pondered: >> >> Hi Jean-Marc >> >> I'm trying to integrate your speex codec on our

Hallo, the device is working without problems in the dom0, found from parport_pc: dmesg small2 snip: parport_pc: ITE8875 found (1P) parport0: PC-style at 0xf000 [PCSPP,TRISTATE,EPP] parport0: Printer, Kyocera FS-1700+ parport_pc: ITE 8872 parallel port: io=0xF000 parport1: PC-style at 0x378 [PCSPP,TRISTATE] snap to assign this device to a domU I gave the boot-parmaters

>-----Original Message----- >From: Robin Getz [mailto:rgetz@blackfin.uclinux.org] >Sent: Tuesday, June 19, 2007 9:35 PM > > >On Tue 19 Jun 2007 13:00, Michael Shatz pondered: >> Robin Getz wrote: >> >I never met any hardware that gcc could not run code on. toolchains have >> >nothing do with embedded OSes. >> >> That's true. Add some

Most asm statements clobber ASTAT bits (shifts, maxes, etc...) but do declare the register as clobbered. Same thing with CC in a few places. Some places make an attempt at clobbering some hardware loop registers, but it's very incomplete compared with how many asm statements actually use hardware loops. Signed-off-by: Mike Frysinger <vapier at gentoo.org> --- libspeex/bfin.h

> >Actually, you're the first I know using the VisualDSP++ toolchain :-) > I guess that's because speex has pretty big memory footprint. So developers that integrate speex tend to have plenty of RAM and once one has plenty of RAM he could install biggish OS. And between biggish OSes for Blackfin the most popular choice is uCLinux. And ucLinux works best with gnu tools. Something

Hi Jean-Marc I'm trying to integrate your speex codec on our custom Blackfin board. The board is not uCLinux compatible and there is no chance that it will ever be. I am using ADI-supplied VisualDSP++ IDE and corresponding toolchain. As long as I am compiling "C"-only version of the library everything is fine. VisualDSP++ produces working library. There is only one not so minor

Hi Jean, First, I would like to thank for the prompt reply. Basically, what I have to do is to run a speex coder/decoder on a Blackfin processor, on top of the microC/OS II kernel. I wish I could use uclinux, since I'm familiar with Linux, but this doesn't depend on me. You said that the assembly code is written for gcc, not for VisualDSP++. Furthermore, in the link you sent me, the