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Date: Tue, 16 Feb 2016 04:11:37 +0200
Message-ID: <CAA2C=vAujKzSw-dfU8OyZZnvjGY_rRWEuDSVTgaou4DLn1dV-A@mail.gmail.com>
Subject: Re: ANNOUNCE: Update of DJGPP port of gcc-5.3.0
From: "Ozkan Sezer (sezeroz AT gmail DOT com) [via djgpp AT delorie DOT com]" <djgpp AT delorie DOT com>
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On 2/16/16, rugxulo AT gmail DOT com [via djgpp AT delorie DOT com] <djgpp AT delorie DOT com> wrote:
> Hi,
>
> On Monday, February 15, 2016 at 7:13:38 AM UTC-6, Wiktor S. wrote:
>>
>> This was a one-line problem in assembly code:
>>
>>     rep/movsl (%esi),(%edi)
>>
>> Newest as.exe generates wrong binary code on the above line. After
>> changing
>> to "rep movsl" with space it worked.
>>
>> I don't know if rep/movsl syntax is correct or not, but if it is not, AS
>> should fail instead of silently generating bad code.
>
> Do you mean that GCC itself is generating [sic] "rep/movsl" or is it
> some inline or handwritten (external) assembly file?
>

AFAICS, it is from quake's d_copy.s assembler source.