Checkin Comment was:
Optimized support for 32x32 => 64bit multiplications on ARM
This code uses UMULL and SMULL to perform the multiplications, which
take two 32bit source registers and two 32bit destination registers.
... umull is not supported by cortex-m0 chips ...
system.inc(1770,8) Warn
On 02.01.14 12:51, Michael Ring wrote:
> Checkin Comment was:
>
> Optimized support for 32x32 => 64bit multiplications on ARM
>
> This code uses UMULL and SMULL to perform the multiplications, which
> take two 32bit source registers and two 32bit destination registers.
>
>
> ... umull is not su
On 02.01.14 13:24, Nico Erfurth wrote:
> On 02.01.14 12:51, Michael Ring wrote:
>> Checkin Comment was:
>>
>> Optimized support for 32x32 => 64bit multiplications on ARM
>>
>> This code uses UMULL and SMULL to perform the multiplications, which
>> take two 32bit source registers and two 32bit desti
On 02 Jan 2014, at 14:11, Nico Erfurth wrote:
I've added a new CPU-feature flag CPUARM_HAS_UMULL and also used it
for
the 64x64=>64bit code.
I think it would be cleaner to also use it in
tarmaddnode.use_generic_mul32to64 (maybe it's also necessary for
correctness, since in pass_1 you ch
I tried rev. 26354, the problem is not yet fixed, perhaps Jonas is right
and there's more to do... I both tried armv7m and armv6m, both break:
ring/devel/fpc/rtl/units/arm-embedded -darm -dRELEASE -O- -gw2
-Fi../objpas/sysutils sysutils.pp
dati.inc(80,34) Fatal: Internal error 2002090902
Fatal
Am 02.01.2014 15:18, schrieb Michael Ring:
> I tried rev. 26354, the problem is not yet fixed, perhaps Jonas is right
> and there's more to do... I both tried armv7m and armv6m, both break:
>
> ring/devel/fpc/rtl/units/arm-embedded -darm -dRELEASE -O- -gw2
> -Fi../objpas/sysutils sysutils.pp
> dat
Working again for armv7m and armv6m, thank you!
Michael
Am 02.01.14 16:24, schrieb Florian Klämpfl:
Am 02.01.2014 15:18, schrieb Michael Ring:
I tried rev. 26354, the problem is not yet fixed, perhaps Jonas is right
and there's more to do... I both tried armv7m and armv6m, both break:
ring/de
On 02.01.14 14:35, Jonas Maebe wrote:
>
> On 02 Jan 2014, at 14:11, Nico Erfurth wrote:
>
>> I've added a new CPU-feature flag CPUARM_HAS_UMULL and also used it for
>> the 64x64=>64bit code.
>
> I think it would be cleaner to also use it in
> tarmaddnode.use_generic_mul32to64 (maybe it's also ne
