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What silicon supports LAT, LAC, LAS, XCH
Three questions concerning the above XMEGA instructions: 1) Are these instructions supported by all XMEGA devices? 2) Is it ensured that these instructions are not supported by...
Tue. May 22, 2012 - 11:38 AM
Video: 25 years of GCC development
youtube: GCC Development History 1989-2012 Just aesthetically appealing how the source tree evolves. Enjoy.
Tue. Mar 27, 2012 - 05:21 PM
ATtiny2313 computes 4000 digits of Pi. In C!
Some days ago I started a fun project to probe new GCC optimizations. It turned out that ATtiny2313 can compute 4000 digits of π using a vanilla C program and floats. Here is an...
Mon. Feb 27, 2012 - 09:38 PM
avr-gcc: What names for the address spaces?
As you might already know, avr-gcc implements several intrinsic named address spaces. The names are __pgm, __pgm1, ..., __pgm5 and __pgmx. Eric proposed to use __flash as...
Sat. Jan 21, 2012 - 07:58 PM
avr-gcc 4.7.0 for the brave
I just built a new avr-gcc-4.7.0 snapshot for Win32. For hints on how to use and "install", see: https://www.avrfreaks.net/index.p... It contains:avr-gcc-4.7.0 (C/C++) SVN 182625...
Thu. Dec 22, 2011 - 09:33 PM
How to assembler a 24-bit integer in avr-as?
Hi, I'd like to assemble a 24-bit integer in avr-as as if it was generated from C code like const __pgmx char c = 1; const __pgmx char *pc = &c; and the assumption that __pgmx...
Sun. Oct 30, 2011 - 11:00 AM
avr-gcc and EIND on devices > 128k code memory
FYI, the avr-gcc manual now contains a description of how EIND is used by the compiler, see http://gcc.gnu.org/onlinedocs/gc... This discription applies for versions 4.6.2+ of the...
Tue. Oct 25, 2011 - 06:56 AM
Information on AVR's skip bug?
Hi, some AVR cores suffer from the skip erratum, i.e. they have problems performing code like skip-instruction two-word-instruction with, e.g. skip-instruction: CPSE, SBRC,...
Wed. Jul 13, 2011 - 05:44 PM
avr-gcc 4.6.1 and Link Time Optimization on Windows
Hi, I just did a Win32-build of avr-gcc-4.6.1 (release candidate) and am playing around with it. Trying to use link time optimization (LTO) I run into ld complaining about "...
Thu. Jun 23, 2011 - 12:39 PM
danni wrote: - 64 bit support not so enormous ressource gulping.Here is the 64 bit div: 3306 bytes! 00000696 00003306 T __udivdi3 To accomplish that, write the function in... Sun. May 29, 2011 - 09:33 AM
Cannot download file.
Hi, trying to download the file https://www.avrfreaks.net/index.p... I just get an image that displays the URL. What the f...? How can I get the file? It's plain C (text/plain). I...
Mon. May 16, 2011 - 05:26 PM
Problems building avr-gcc-4.3.2 on linux (libssp)
Hi, trying to build gcc-4.3.2 for suse 10.0, make runs into the following problem: make[3]: Entering directory `/local/gcc-4.3.2-obj-avr/avr/libssp' if /bin/sh ./libtool --tag=...
Fri. Dec 5, 2008 - 07:03 PM