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Date: Tue, 16 Jun 2009 17:30:56 +0800
From: Amerigo Wang <xiyou.wangcong@gmail.com>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: xiyou.wangcong@gmail.com, hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: Re: [x86] Build error at arch/x86/boot/bioscall.S
Message-ID: <20090616093056.GD6270@cr0.nay.redhat.com>
References: <200906160738.n5G7cs9r007216@www262.sakura.ne.jp> <20090616081445.GB6270@cr0.nay.redhat.com> <200906160825.n5G8PYRu020230@www262.sakura.ne.jp>
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On Tue, Jun 16, 2009 at 05:25:34PM +0900, Tetsuo Handa wrote:
>Amerigo Wang wrote:
>> How about:
>> 
>> - movw 68(%esp), %di
>> + movzwl %sp, %ebx
>> + movw 68(%ebx), %di
>> 
>> ? Does this work?
>No.
>
>arch/x86/boot/bioscall.S: Assembler messages:
>arch/x86/boot/bioscall.S:69: Error: `68(%ebx)' is not a valid 16 bit base/index expression
>make[1]: *** [arch/x86/boot/bioscall.o] Error 1
>make: *** [bzImage] Error 2

Ok, how about:

- movw 68(%esp), %di
+ addl $68, %esp
+ popw %di
+ subl $66, %esp

?
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