Displaying 7 results from an estimated 7 matches for "ep9312".
2005 May 10
2
Encoder performance on ARM9
Hi Jean-Marc,
>I think it's worth trying the float version on your CPU. However, I
>wouldn't be surprised if the fixed-point was still faster than float.
ok, I'll try both configurations.
>BTW, you can use --enable-arm5-asm instead of --enable-arm4-asm. While
>both are currently almost the same, eventually it would be possible to
>get better performance using the
2005 May 10
0
Cross-compiling with Cirrus Logic MaverickCrunch support
Hi Jean-Marc,
I have the following problem when cross-building speex 1.1.7 with
MaverickCrunch support. To add this support I had to define CPPFLAGS as
follows:
export CPPFLAGS='-mcpu=ep9312 -mfix-crunch-d1'
but it seems libtool does not like it, while the object files are
compiled fine:
...
arm-linux-gcc -DHAVE_CONFIG_H -I. -I. -I.. -I../include
-I/home/llandre/devel/zephyr/sw/rootfs/usr/local/include/ogg -mcpu=ep9312
-mfix-crunch-d1 -g -O2 -c mdf.c -MT mdf.lo -MD -MP -MF
....
2005 May 11
1
Cross-compiling with Cirrus Logic MaverickCrunch support
> I have the following problem when cross-building speex 1.1.7 with
> MaverickCrunch support. To add this support I had to define CPPFLAGS
> as follows:
>
> export CPPFLAGS='-mcpu=ep9312 -mfix-crunch-d1'
You should set CFLAGS instead (or as well).
> but it seems libtool does not like it, while the object files are
> compiled fine:
It's ld that complains, actually. Not _everything_ is libtool's fault
(and this is pilot error anyway) ;-)
Segher
2010 Jan 10
1
[LLVMdev] building a llvm-arm-elf crosscompiler on OSX 10.5
...[ArchV4T]>;
def : ProcNoItin<"arm920", [ArchV4T]>;
def : ProcNoItin<"arm920t", [ArchV4T]>;
def : ProcNoItin<"arm922t", [ArchV4T]>;
def : ProcNoItin<"arm940t", [ArchV4T]>;
def : ProcNoItin<"ep9312", [ArchV4T]>;
I would like to understand if LLVM can be used for ArchV4T or not.
Could you please indicate specific documentation for llvm ARM codegen?
Does anybody use llvm with arm7tdmi ucontroller (e.g. at91sam7xxx)
Thank you again for your help,
pz
2010/1/10 Anton Korobeyn...
2010 Jan 10
0
[LLVMdev] building a llvm-arm-elf crosscompiler on OSX 10.5
Hello, Pazzo
> Any clue?
Yes. Sorry, my fault - next time I should check ARM docs before replying.
ARM7TDMI is ARMv4T and this is not supported by LLVM (LLVM does v5+ codegen).
--
With best regards, Anton Korobeynikov
Faculty of Mathematics and Mechanics, Saint Petersburg State University
2009 Mar 15
1
vorbisenc creates silent ogg files on ARM EABI
...Happy-xscale (Debian, armv5te chip, armv4t code, 64-bit
softfloat, gcc-4.3)
253029 Happy-gcc55 (Gentoo, armv5te chip, armv5t code, 64-bit
softfloat, gcc-4.1.2)
166377 Happy-gcc-4.1 (Debian, armv5te chip, armv4t code, 64-bit
softfloat, gcc-4.1)
If I compile it to use the MaverickCrunch FPU on the ep9312 armv4t
chip, which doesn't handle denormalized values so floats only have a
precision of 2^-126 instead of 2^-149, I get
9237 Happy-crunch.ogg (yes, 9k!)
All these ARM .oggs decode to files of the correct length containing
silence and are visible under http://martinwguy/co/uk/martin/libvorb...
2010 Jan 10
2
[LLVMdev] building a llvm-arm-elf crosscompiler on OSX 10.5
Dear Anton,
Thank you again for your help!
I tried with the following options (adding --with-cpu=arm7tdmi and
using binutils from cvs snapshot):
../llvm-gcc4.2-2.6.source/configure
--prefix=/usr/local/cross-llvm-gcc-arm-elf-4.2-2.6
--program-prefix=llvm-
--enable-llvm=/Users/dummy/Develop/llvm/llvm-build
--enable-languages=c,c++ --host=i686-apple-darwin9
--build=i686-apple-darwin9