I do not see references to "libfp" in doc.txt, nor can I find much w/ google. I have looked in the windows release of mspgcc, but didn't find this library anywhere either. Is there a good place to look for info on this library? I have one function in particular that uses quite a bit of floating point calls and would love to have this optimized further. When I include the -lfp command line switch, it doesn't make any difference in the code size at all (although, it didn't give me any errors/warnings either). How do I know the libfp is being linked? Sorry, I am not too familiar w/ the gnu toolchain.
Thanks for the info on the max stack size! I assumed you are grepping in the .elf file for the max size keyword (since I found it there). -Mark Stokes -----Original Message----- From: mspgcc-users-ad...@lists.sourceforge.net [mailto:mspgcc-users-ad...@lists.sourceforge.net] On Behalf Of Dmitry Sent: Friday, March 28, 2003 6:41 AM To: mspgcc-users@lists.sourceforge.net Subject: Re: [Mspgcc-users] Re: Ram usage of MSP430 For floating calculations you can check libfp (which comes with libc and links with -lfp flag). This is not broadly tested, yet works for most (my :) applications. This will dramatically reduce stack usage for floats. As for stack checking... Compile your sources with -S flag, then grep on "frame size" - this will show max stack required (excluding libraries of course). And another way - do the same as on 8031. ~d On Friday 28 March 2003 14:08, Saso Zbontar wrote: > Dmitry, > > thanks for prompt answer, I found out two minutes > after I posted a mail how to do that. I am using 166 bytes > of bss, but I am overlaping my variables with stack (using > over 90 bytes for stack as far I was able to found with GDB tool) > I am doing some floating calculations :-) > Is there any way or tool to calculate the amount of stack size > the program is using? > > On 8031 I `ve done that with some extra lines > of program in timer interrupt, just to transfer > stack pointer to a variable which you can check > after some time of running the program, but i believe > it has to be easier way to do it on MSP430. > > Regards > Saso > > ----- Original Message ----- > From: Saso Zbontar > To: mspgcc-users@lists.sourceforge.net > Sent: Wednesday, March 26, 2003 3:31 PM > Subject: Ram usage of MSP430 > > > Hi, > > How to find out how much RAM is used on target > processor when I compile the program or to find out > how much RAM has the compiler reserved for variables > defined in my program. For example: according to my > calculations I am using about 120 bytes of RAM on MSP430f413 > but something odd hapens when i run the program. I think some > variables are overlaping. Stack is set to default value ( 0x0300 ) > > Any Ideas? > > Regards Saso -- /******************************************************************** ("`-''-/").___..--''"`-._ (\ Dimmy the Wild UA1ACZ `6_ 6 ) `-. ( ).`-.__.`) Enterprise Information Sys (_Y_.)' ._ ) `._ `. ``-..-' Nevsky prospekt, 20 / 44 _..`--'_..-_/ /--'_.' ,' Saint Petersburg, Russia (il),-'' (li),' ((!.-' +7 (812) 3468202, 5585314 ********************************************************************/ ------------------------------------------------------- This SF.net email is sponsored by: The Definitive IT and Networking Event. Be There! NetWorld+Interop Las Vegas 2003 -- Register today! http://ads.sourceforge.net/cgi-bin/redirect.pl?keyn0001en _______________________________________________ Mspgcc-users mailing list Mspgcc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mspgcc-users
