Re: [pygame] ASM code in pygame

["René Dudfield" <renesd@xxxxxxxxx>]

hello,

for your info...

gcc supports intel syntax with a command line option.

-masm=intel

SDL uses macros for portable asm, I think.


On Mon, Mar 10, 2008 at 5:04 AM, Richard Goedeken
<SirRichard@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
> Lenard Lindstrom wrote:
>  > Deciding how to handle assembly code in future Pygame releases will
>  > probably take up its own mailing list thread. But when I do a Google
>  > search on the topic of Intel assembly code and gcc I get this,
>  > http://www.acm.uiuc.edu/sigmil/RevEng/ch02.html , which claims the GNU
>  > assembler 'as' "takes input as an AT&T or Intel syntax asm file".
>  > Pygame's assembly routines will likely end up in there own libraries and
>  > be linked in, possibly dynamically, as needed. So gcc C will no longer
>  > be a factor for assembly language compatibility.
>
>  GUN 'as' may take intel-style code, but I'm pretty sure that the compiler (GCC)
>  will only accept the AT&T style.  The back end of the compiler needs to know the
>  input/output registers, and if that information is not explicitly given in the
>  extended-asm syntax, then the compiler must parse the ASM and extract the
>  information by itself.  This is what VC does, but I think GCC probably doesn't
>  have support for this.
>
>  If you're considering keeping separate libraries for the ASM code then I think
>  breaking the code out into .asm files and assembling it with NASM/YASM is the
>  right way to go.
>
>  Richard
>