Dear zzs,
In message <20110715161531.ga5...@greatfirst.com> you wrote:
>
> Today I found the "wrong code" :
Very well - thanks.
> and the __udivsi3 contain the "wrong code" :
>
> 20111cfc <__udivsi3>:
> 20111cfc: e2512001 subs r2, r1, #1 ; 0x1
> 20111d00: 012fff1e bxeq lr
> 20111d04: 3a000023 bcc 20111d98 <__udivsi3+0x9c>
> 20111d08: e1500001 cmp r0, r1
> 20111d0c: 9a00001a bls 20111d7c <__udivsi3+0x80>
> 20111d10: e1110002 tst r1, r2
> 20111d14: 0a00001b beq 20111d88 <__udivsi3+0x8c>
> 20111d18: e16f3f11 clz r3, r1 # ***this is the "wrong
> code"
> 20111d1c: e16f2f10 clz r2, r0
> 20111d20: e0432002 sub r2, r3, r2
...
> Architectures
>
> This instruction is available in ARM architecture versions 5 and above.
>
>
> But at91rm9200 is armv4.
This is to be expected. It comes from using the GCC library routines
from ELDK, which are configured for an ARMv5TE architecture.
> Does this mean I can't use eldk5.0 for at91rm9200 ? If yes, How can I
You can use it, but you must make sure to rebuild the needed GCC
library routines as needed for your target.
See the USE_PRIVATE_LIBGCC make option, i. e. use:
USE_PRIVATE_LIBGCC=yes make ...
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
One of the advantages of being a captain is being able to ask for ad-
vice without necessarily having to take it.
-- Kirk, "Dagger of the Mind", stardate 2715.2
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