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oldlinux-files/docs/interrupts/int-html/rb-3015.htm
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<TITLE>Int 21/AH=5Bh
</TITLE>
<META NAME="Description" CONTENT="
Int 21/AH=5Bh - DOS 3.0+ - CREATE NEW FILE -
AH = 5Bh
CX = file attribute (see #01420 at AX=4301h)
DS:DX - ASCIZ filename
Return: CF clear if successful
AX = file handle opened for read/write in compatibility mode
CF set on error
AX = error code (03h,04h,05h,50h) (see #01680)
Notes: unlike AH=3Ch, this function will fail if the specified file exists
rather than truncating it; this permits its use in creating semaphore
files because it is an atomic test and set operation
">
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<h2>Int 21/AH=5Bh
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<h3><font color=#C00040>DOS 3.0+ - CREATE NEW FILE</font></h3>
<PRE>
AH = 5Bh
CX = file attribute <a href="javascript:if(confirm('http://www.ctyme.com/intr/rb-0000.htm \n\nThis file was not retrieved by Teleport Pro, because it was unavailable, or its retrieval was aborted, or the project was stopped too soon. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/intr/rb-0000.htm#Table0'" tppabs="http://www.ctyme.com/intr/rb-0000.htm#Table0"></a>(see #01420 at AX=4301h)
DS:DX -> ASCIZ filename<br>
<p><b>Return:</b><br>CF clear if successful
AX = file handle opened for read/write in compatibility mode
CF set on error
AX = error code (03h,04h,05h,50h) <a href="rb-3012.htm#Table1680" tppabs="http://www.ctyme.com/intr/rb-3012.htm#Table1680">(see #01680)</a>
</PRE>
<p><b>Notes:</b>
Unlike AH=3Ch, this function will fail if the specified file exists
rather than truncating it; this permits its use in creating semaphore
files because it is an atomic "test and set" operation.
Under the FlashTek X-32 DOS extender, the filename pointer is in DS:EDX
<p><b>See Also:</b>
<a href="rb-2778.htm" tppabs="http://www.ctyme.com/intr/rb-2778.htm">AH=3Ch</a> - <a href="rb-3014.htm" tppabs="http://www.ctyme.com/intr/rb-3014.htm">AH=5Ah</a>
<p>
<b>Category: <a href="cat-010.htm" tppabs="http://www.ctyme.com/intr/cat-010.htm">
DOS Kernel</a>
- <a href="int-21.htm" tppabs="http://www.ctyme.com/intr/int-21.htm">
Int 21h</a>
- <a href="alpha-d.htm" tppabs="http://www.ctyme.com/intr/alpha-d.htm">
D</a>
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