On Wed, May 4, 2016 at 6:14 AM, Pierre Free Pascal <pie...@freepascal.org>
wrote:

> I think the correct solution for you is to use explicit size information:
>
>
>
>   FSTP SINGLE PTR [EDX]
>
>   FSTP SINGLE PTR [EAX]
>
Indeed that worked as expected. Thank you.


> but
>
>   FSTP [s]
>
> and
>
>   FSTP [c]
>
It still requires explicit size information, like
   FSTP SINGLE [s]


>   My GNU as version 2.26 does not seem to need an explicit size,
>
> but I don’t know what Xcode uses, isn’t it also a GNU assembler?
>
> Could you tell us which assembler is used?
>

It's Apple's clang IIRC Apple stopped using gnu-tools since Xcode 3.2 or
something like that.
Here are more exact details:

$ as -v
Apple LLVM version 7.3.0 (clang-703.0.29)
Target: x86_64-apple-darwin15.3.0
Thread model: posix
InstalledDir:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
 
"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang"
-cc1as -triple x86_64-apple-macosx10.11.0 -filetype obj -main-file-name -
-target-cpu core2 -dwarf-version=2 -fdebug-compilation-dir
/Users/dmitry/FPC_Laz -dwarf-debug-producer Apple LLVM version 7.3.0
(clang-703.0.29) -mrelocation-model pic -o a.out -

thanks,
Dmitry
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