[coreboot] [PATCH] clarify << and -
c-d.hailfinger.devel.2006 at gmx.net
Wed Apr 14 21:44:24 CEST 2010
On 14.04.2010 21:35, Myles Watson wrote:
> On Wed, Apr 14, 2010 at 1:22 PM, Stefan Reinauer <stepan at coresystems.de>wrote:
>> On 4/14/10 6:44 PM, Myles Watson wrote:
>> Index: src/northbridge/amd/gx2/chipsetinit.c
>>> --- src/northbridge/amd/gx2/chipsetinit.c (revision 5425)
>>> +++ src/northbridge/amd/gx2/chipsetinit.c (working copy)
>>> @@ -275,7 +275,7 @@
>>> if ((msr.lo&0xff) == 0x11)
>>> - totalmem = sizeram() << 20 - 1;
>>> + totalmem = (sizeram() << 20) - 1;
>> I agree that it looks right, but it changes the answer, since subtraction
>> has a higher precedence than shift.
>> I don't have a board to test which is right. Did you check v3?
>> Nor do I...
>> v3 never supported gx2.
> I guess this should be the patch, then:
> - totalmem = sizeram() << 20 - 1;
> + totalmem = sizeram() << (20 - 1);
> Anyone with an OLPC board care to chime in?
I won't be able to test before April 20. If that's still to be tested by
then, I'd appreciate a reminder.
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