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what does this do ?

From: ishare <june dot tune dot sea at gmail dot com>
To: gcc-help at gcc dot gnu dot org
Date: Mon, 4 Mar 2013 01:22:01 +0800
Subject: what does this do ?


here are a portion of  build-in asm code  :

    "  .long 661b\n"                    \
    "  .long 663f\n"            \
    "  .byte %c0\n"             /               \
    "  .byte 662b-661b\n"                       \
    "  .byte 664f-663f\n"

what is 661b,663f ,etc .

what does it mean?

thanks!

Follow-Ups:
- Re: what does this do ?
  - From: Kalle Olavi Niemitalo

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