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