Cat, Thanks to Dave's work on building ARM multilib you can use the arm926ej-s option. If you recompile your arm gcc crosscompiler with rockboxdev.sh it should give you full armv5 (arm926ej-s) support. I'll commit a change to the configure script so that it adds the mcpu option by default. I've been working with it for a day or so and it seems to work well.
Regards, Karl On Nov 12, 2007 8:52 PM, Catalin Patulea <[EMAIL PROTECTED]> wrote: > Hey guys, > > I'm working on some code for the m:robe and I noticed that the current > assembler for the m:robe target (arm9tdmi) doesn't support the BKPT > instruction. I forget exactly what error message I get, but using > "-mcpu=arm926ej-s" solved the problem (which makes sense, because > that's a closer match to the CPU in the m:robe). I ended up getting a > different error at that point, regarding heterogenous use of > floating-point instructions. I found that compiling all of Rockbox > with "-mfpu=fpa" solved that problem as well. The resulting code seems > to run, though I haven't really tested much. I think the code size > also decreased marginally. > > My question is: why do I need -mfpu=fpa and is it safe to check in a > change like that? Does Rockbox use floating-point? I can dig up the > actual error messages if you think they're valuable. > > -Cat >
