2000-02-18 03:39:52 +08:00
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# /* This is file ISATTY.S */
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# /*
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2001-02-23 06:12:43 +08:00
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# ** Copyright (C) 1991 DJ Delorie
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2000-02-18 03:39:52 +08:00
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# **
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# ** This file is distributed under the terms listed in the document
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2001-02-23 06:12:43 +08:00
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# ** "copying.dj".
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2000-02-18 03:39:52 +08:00
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# ** A copy of "copying.dj" should accompany this file; if not, a copy
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# ** should be available from where this file was obtained. This file
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# ** may not be distributed without a verbatim copy of "copying.dj".
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# **
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# ** This file is distributed WITHOUT ANY WARRANTY; without even the implied
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# ** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# */
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.text
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.globl _isatty
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_isatty:
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pushl %ebx
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pushl %esi
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pushl %edi
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movl 16(%esp),%ebx
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movw $0x4400,%ax
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int $0x21
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popl %edi
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popl %esi
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popl %ebx
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movl $0,%eax
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jb tf
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testl $0x80,%edx
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jz tf
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movl $1,%eax
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tf:
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ret
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