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oldlinux-files/docs/interrupts/int-html/rb-3422.htm
2024-02-19 00:23:35 -05:00

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<TITLE>Int 21/AX=DF01h
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Int 21/AX=DF01h - Software Carousel - SWITCH TO ANOTHER TASK -
AX = DF01h
BL = task number (00h = next task)
Return: AL = status
00h Carousel not running
01h successful
FFh unsucessful
AH = error code (01h,02h) (see #01813)
(Table 01813)
Values for Software Carousel error code:
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<h2>Int 21/AX=DF01h
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<h3><font color=#C00040>Software Carousel - SWITCH TO ANOTHER TASK</font></h3>
<PRE>
AX = DF01h
BL = task number (00h = next task)<br>
<p><b>Return:</b><br>AL = status
00h Carousel not running
01h successful
FFh unsucessful
AH = error code (01h,02h) <a href="rb-3422.htm#Table1813" tppabs="http://www.ctyme.com/intr/rb-3422.htm#Table1813">(see #01813)</a>
<p>
<a name=table1813></a>
(Table 01813)
Values for Software Carousel error code:
00h invalid subfunction in AL
01h invalid task number
02h tried to switch to task with no memory size
03h tried to kill program in partition with no program running
04h tried to change size of an active memory partition
05h invalid memory size
06h tried to send command to task with a pending previous command
</PRE>
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<b>Category: <a href="cat-011.htm" tppabs="http://www.ctyme.com/intr/cat-011.htm">
DOS-Based Task Switchers/Multitaskers</a>
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Int 21h</a>
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