29 lines
783 B
ArmAsm
29 lines
783 B
ArmAsm
# /* This is file DUP.S */
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# /*
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# ** Copyright (C) 1991 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
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# **
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# ** This file is distributed under the terms listed in the document
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# ** "copying.dj", available from DJ Delorie at the address above.
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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 _dup
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_dup:
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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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movb $0x45,%ah
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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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jb syscall_error
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ret
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