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oldlinux-files/docs/interrupts/int-html/rb-1407.htm
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<TITLE>Int 15/AX=530Ah
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Int 15/AX=530Ah - Advanced Power Management v1.0+ - GET POWER STATUS -
AX = 530Ah
BX = device ID
0001h all devices power-managed by APM
80xxh specific battery unit number XXh (01h-FFh) (APM v1.2)
Return: CF clear if successful
BH = AC line status
00h off-line
01h on-line
02h on backup power (APM v1.1)
FFh unknown
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<h2>Int 15/AX=530Ah
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<h3><font color=#C00040>Advanced Power Management v1.0+ - GET POWER STATUS</font></h3>
<PRE>
AX = 530Ah
BX = device ID
0001h all devices power-managed by APM
80xxh specific battery unit number XXh (01h-FFh) (APM v1.2)<br>
<p><b>Return:</b><br>CF clear if successful
BH = AC line status
00h off-line
01h on-line
02h on backup power (APM v1.1)
FFh unknown
other reserved
BL = battery status <a href="rb-1407.htm#Table476" tppabs="http://www.ctyme.com/intr/rb-1407.htm#Table476">(see #00476)</a>
CH = battery flag (APM v1.1+) <a href="rb-1407.htm#Table477" tppabs="http://www.ctyme.com/intr/rb-1407.htm#Table477">(see #00477)</a>
CL = remaining battery life, percentage
00h-64h (0-100) percentage of full charge
FFh unknown
DX = remaining battery life, time (APM v1.1) <a href="rb-1407.htm#Table478" tppabs="http://www.ctyme.com/intr/rb-1407.htm#Table478">(see #00478)</a>
---if specific battery unit specified---
SI = number of battery units currently installed
CF set on error
AH = error code (09h,0Ah) <a href="rb-1394.htm#Table473" tppabs="http://www.ctyme.com/intr/rb-1394.htm#Table473">(see #00473)</a>
</PRE>
<p><b>Notes:</b>
Should not be called from within a hardware interrupt handler to avoid
reentrance problems.
Supported in real mode (INT 15) and both 16-bit and 32-bit protected
mode
<PRE>
<p>
<a name=table476></a>
(Table 00476)
Values for APM v1.0+ battery status:
00h high
01h low
02h critical
03h charging
FFh unknown
other reserved
</PRE>
<p><b>See Also:</b>
#00477 - #00478
<PRE>
<p>
Bitfields for APM v1.1+ battery flag:
<a name=table477></a>
Bit(s) Description (Table 00477)
0 high
1 low
2 critical
3 charging
4 selected battery not present (APM v1.2)
5-6 reserved (0)
7 no system battery
</PRE>
<p><b>Note:</b>
All bits set (FFh) if unknown
<p><b>See Also:</b>
#00476 - #00478
<PRE>
<p>
Bitfields for APM v1.1+ remaining battery life:
<a name=table478></a>
Bit(s) Description (Table 00478)
<p><b>15 time units:</b><br>0=seconds, 1=minutes
14-0 battery life in minutes or seconds
</PRE>
<p><b>Note:</b>
All bits set (FFFFh) if unknown
<p><b>See Also:</b>
#00476 - #00477
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Int 15h</a>
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