INTERRUP.

Interrupt List Release 61 Last change 16jul00
Copyright (c) 1989-1999,2000 Ralf Brown

Index for category p - power management,

104F10BL00 - INT 10 - VESA VBE/PM (Power Management) v1.0+ - GET CAPABILITIES

INT 10 - VESA VBE/PM (Power Management) v1.0+ - GET CAPABILITIES
	AX = 4F10h
	BL = 00h
	ES:DI = 0000h:0000h (reserved for future use as pointer to info block)
Return: AL = 4Fh if function supported (installed)
	AH = call status
	    00h successful
	    else failed
	---if successful---
	BL = VBE/PM version (bits 7-4: major, bits 3-0: minor)
	BH = supported states (see #00110)
	ES:DI unchanged
Index:	installation check;VESA VBE/Power Management|VESA DPMS
SeeAlso: AX=4F10h/BL=01h,AX=4F10h/BL=02h

Bitfields for VESA VBE/PM supported power states:
Bit(s)	Description	(Table 00110)
 0	standby
 1	suspend
 2	off
 3	reduced on

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104F10BL01 - INT 10 - VESA VBE/PM (Power Management) v1.0+ - SET DISPLAY POWER STATE

INT 10 - VESA VBE/PM (Power Management) v1.0+ - SET DISPLAY POWER STATE
	AX = 4F10h
	BL = 01h
	BH = new state (see #00111)
Return: AL = 4Fh if function supported
	AH = call status
	    00h successful
	    else failed
SeeAlso: AX=4F10h/BL=00h,AX=4F10h/BL=02h,AX=A00Ch

(Table 00111)
Values for VESA VBE/PM power state:
 00h	On
 01h	standby
 02h	suspend
 04h	Off
 08h	reduced On (for flat screens)

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104F10BL02 - INT 10 - VESA VBE/PM (Power Management) v1.0+ - GET DISPLAY POWER STATE

INT 10 - VESA VBE/PM (Power Management) v1.0+ - GET DISPLAY POWER STATE
	AX = 4F10h
	BL = 02h
Return: AL = 4Fh if function supported
	AH = call status
	    00h successful
	       BH = current power state (see #00111)
	    else failed
SeeAlso: AX=4F10h/BL=00h,AX=4F10h/BL=01h,AX=A00Dh

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10A000 - INT 10 - ATI BIOS Extensions - ???

INT 10 - ATI BIOS Extensions - ???
	AX = A000h
	CL = ??? (bits 2-0 may not be 000)
	CH = ??? (81h or ???)
	DX = segment of ??? (if CH=81h)
	???
Return: AX = ???
Program: the ATI BIOS extensions are supported by ATI graphics cards containing
	  the Mach64 or newer graphics chips (Rage Pro, Rage 128, etc.)
SeeAlso: AX=4F10h/BL=00h,AX=A001h

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10A00C - INT 10 - ATI Mach64 BIOS - SET SLEEP MODE

INT 10 - ATI Mach64 BIOS - SET SLEEP MODE
	AX = A00Ch
	CL = new state
	    00h normal operation
	    01h standby
	    02h suspend
	    03h off
Return: AH = status
	    00h successful
	    01h failed
Note:	CL bit 2 affects values written to video card's ports
SeeAlso: AX=A000h,AX=A00Dh,AX=4F00h,AX=4F10h/BL=01h

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155300 - INT 15 - Advanced Power Management v1.0+ - INSTALLATION CHECK

INT 15 - Advanced Power Management v1.0+ - INSTALLATION CHECK
	AX = 5300h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	    AH = major version (BCD)
	    AL = minor version (BCD)
	    BX = 504Dh ("PM")
	    CX = flags (see #00472)
	CF set on error
	    AH = error code (06h,09h,86h) (see #00473)
BUG:	early versions of the Award Modular BIOS with built-in APM support
	  reportedly do not set BX on return

Bitfields for APM flags:
Bit(s)	Description	(Table 00472)
 0	16-bit protected mode interface supported
 1	32-bit protected mode interface supported
 2	CPU idle call reduces processor speed
 3	BIOS power management disabled
 4	BIOS power management disengaged (APM v1.1)
 5-7	reserved

(Table 00473)
Values for APM error code:
 01h	power management functionality disabled
 02h	interface connection already in effect
 03h	interface not connected
 04h	real-mode interface not connected
 05h	16-bit protected-mode interface already connected
 06h	16-bit protected-mode interface not supported
 07h	32-bit protected-mode interface already connected
 08h	32-bit protected-mode interface not supported
 09h	unrecognized device ID
 0Ah	invalid parameter value in CX
 0Bh	(APM v1.1) interface not engaged
 0Ch	(APM v1.2) function not supported
 0Dh	(APM v1.2) Resume Timer disabled
 0Eh-1Fh reserved for other interface and general errors
 20h-3Fh reserved for CPU errors
 40h-5Fh reserved for device errors
 60h	can't enter requested state
 61h-7Fh reserved for other system errors
 80h	no power management events pending
 81h-85h reserved for other power management event errors
 86h	APM not present
 87h-9Fh reserved for other power management event errors
 A0h-FEh reserved
 FFh	undefined

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155301 - INT 15 - Advanced Power Management v1.0+ - CONNECT REAL-MODE INTERFACE

INT 15 - Advanced Power Management v1.0+ - CONNECT REAL-MODE INTERFACE
	AX = 5301h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	CF set on error
	    AH = error code (02h,05h,07h,09h) (see #00473)
Note:	on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
	  compatibility mode until it is informed that the user supports a
	  newer version of APM (see AX=530Eh)
SeeAlso: AX=5302h,AX=5303h,AX=5304h

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155302 - INT 15 R - Advanced Power Management v1.0+ - CONNECT 16-BIT PROTMODE INTERFACE

INT 15 R - Advanced Power Management v1.0+ - CONNECT 16-BIT PROTMODE INTERFACE
	AX = 5302h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	    AX = real-mode segment base address of protected-mode 16-bit code
		segment
	    BX = offset of entry point
	    CX = real-mode segment base address of protected-mode 16-bit data
		segment
	    ---APM v1.1---
	    SI = APM BIOS code segment length
	    DI = APM BIOS data segment length
	CF set on error
	    AH = error code (02h,05h,06h,07h,09h) (see #00473)
Notes:	the caller must initialize two consecutive descriptors with the
	  returned segment base addresses; these descriptors must be valid
	  whenever the protected-mode interface is called, and will have
	  their limits arbitrarily set to 64K.
	the protected mode interface is invoked by making a far call with the
	  same register values as for INT 15; it must be invoked while CPL=0,
	  the code segment descriptor must have a DPL of 0, the stack must be
	  in a 16-bit segment and have enough room for BIOS use and possible
	  interrupts, and the current I/O permission bit map must allow access
	  to the I/O ports used for power management.
	functions 00h-03h are not available from protected mode
	on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
	  compatibility mode until it is informed that the user supports a
	  newer version of APM (see AX=530Eh)
SeeAlso: AX=5301h,AX=5303h,AX=5304h

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155303 - INT 15 - Advanced Power Management v1.0+ - CONNECT 32-BIT PROTMODE INTERFACE

INT 15 - Advanced Power Management v1.0+ - CONNECT 32-BIT PROTMODE INTERFACE
	AX = 5303h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	    AX = real-mode segment base address of protected-mode 32-bit code
		segment
	    EBX = offset of entry point
	    CX = real-mode segment base address of protected-mode 16-bit code
		segment
	    DX = real-mode segment base address of protected-mode 16-bit data
		segment
	    ---APM v1.1---
	    SI = APM BIOS code segment length
	    DI = APM BIOS data segment length
	CF set on error
	    AH = error code (02h,05h,07h,08h,09h) (see #00473)
Notes:	the caller must initialize three consecutive descriptors with the
	  returned segment base addresses for 32-bit code, 16-bit code, and
	  16-bit data, respectively; these descriptors must be valid whenever
	  the protected-mode interface is called, and will have their limits
	  arbitrarily set to 64K.
	the protected mode interface is invoked by making a far call to the
	  32-bit code segment with the same register values as for INT 15; it
	  must be invoked while CPL=0, the code segment descriptor must have a
	  DPL of 0, the stack must be in a 32-bit segment and have enough room
	  for BIOS use and possible interrupts, and the current I/O permission
	  bit map must allow access to the I/O ports used for power management.
	functions 00h-03h are not available from protected mode
	on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
	  compatibility mode until it is informed that the user supports a
	  newer version of APM (see AX=530Eh)
SeeAlso: AX=5301h,AX=5302h,AX=5304h

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155304 - INT 15 - Advanced Power Management v1.0+ - DISCONNECT INTERFACE

INT 15 - Advanced Power Management v1.0+ - DISCONNECT INTERFACE
	AX = 5304h
	BX = device ID of system BIOS (0000h)
Return: CF clear if successful
	CF set on error
	    AH = error code (03h,09h) (see #00473)
SeeAlso: AX=5301h,AX=5302h,AX=5303h

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155305 - INT 15 - Advanced Power Management v1.0+ - CPU IDLE

INT 15 - Advanced Power Management v1.0+ - CPU IDLE
	AX = 5305h
Return: CF clear if successful (after system leaves idle state)
	CF set on error
	    AH = error code (03h,0Bh) (see #00473)
Notes:	call when the system is idle and should be suspended until the next
	  system event or interrupt
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	if an interrupt causes the system to resume normal processing, the
	  interrupt may or may not have been handled when the BIOS returns
	  from this call; thus, the caller should allow interrupts on return
	interrupt handlers may not retain control if the BIOS allows
	  interrupts while in idle mode even if they are able to determine
	  that they were called from idle mode
	the caller should issue this call continuously in a loop until it needs
	  to perform some processing of its own
SeeAlso: AX=1000h,AX=5306h,INT 2F/AX=1680h

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155306 - INT 15 - Advanced Power Management v1.0+ - CPU BUSY

INT 15 - Advanced Power Management v1.0+ - CPU BUSY
	AX = 5306h
Return: CF clear if successful
	CF set on error
	    AH = error code (03h,0Bh) (see #00473)
Notes:	called to ensure that the system runs at full speed even on systems
	  where the BIOS is unable to recognize increased activity (especially
	  if interrupts are hooked by other programs and not chained to the
	  BIOS)
	this call may be made even when the system is already running at full
	  speed, but it will create unnecessary overhead
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5305h

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155307 - INT 15 - Advanced Power Management v1.0+ - SET POWER STATE

INT 15 - Advanced Power Management v1.0+ - SET POWER STATE
	AX = 5307h
	BX = device ID (see #00474)
	CX = system state ID (see #00475)
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,03h,09h,0Ah,0Bh,60h) (see #00473)
Note:	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=530Ch

(Table 00474)
Values for APM device IDs:
 0000h	system BIOS
 0001h	all devices for which the system BIOS manages power
 01xxh	display (01FFh for all attached display devices)
 02xxh	secondary storage (02FFh for all attached secondary storage devices)
 03xxh	parallel ports (03FFh for all attached parallel ports)
 04xxh	serial ports (04FFh for all attached serial ports)
---APM v1.1+ ---
 05xxh	network adapters (05FFh for all attached network adapters)
 06xxh	PCMCIA sockets (06FFh for all)
 0700h-7FFFh reserved
 80xxh	system battery devices (APM v1.2)
 8100h-DFFFh reserved
 Exxxh	OEM-defined power device IDs
 F000h-FFFFh reserved

(Table 00475)
Values for system state ID:
 0000h	ready (not supported for device ID 0001h)
 0001h	stand-by
 0002h	suspend
 0003h	off (not supported for device ID 0001h in APM v1.0)
---APM v1.1---
 0004h	last request processing notification (only for device ID 0001h)
 0005h	last request rejected (only for device ID 0001h)
 0006h-001Fh reserved system states
 0020h-003Fh OEM-defined system states
 0040h-007Fh OEM-defined device states
 0080h-FFFFh reserved device states

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155307CX0001 - INT 15 - Advanced Power Management v1.0+ - SYSTEM STAND-BY

INT 15 - Advanced Power Management v1.0+ - SYSTEM STAND-BY
	AX = 5307h
	CX = 0001h
	BX = 0001h (device ID for all power-managed devices)
Return: CF clear
Notes:	puts the entire system into stand-by mode; normally called in response
	  to a System Stand-by Request notification after any necessary
	  processing, but may also be invoked at the caller's discretion
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	the stand-by state is typically exited on an interrupt
SeeAlso: AX=4280h,AX=5307h/CX=0002h"SUSPEND",AX=5307h/CX=0003h,AX=530Bh

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155307CX0002 - INT 15 - Advanced Power Management v1.0+ - SUSPEND SYSTEM

INT 15 - Advanced Power Management v1.0+ - SUSPEND SYSTEM
	AX = 5307h
	CX = 0002h
	BX = 0001h (device ID for all power-managed devices)
Return: after system is resumed
	CF clear
Notes:	puts the entire system into a low-power suspended state; normally
	  called in response to a Suspend System Request notification after
	  any necessary processing, but may also be invoked at the caller's
	  discretion
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	the caller may need to update its date and time values because the
	  system could have been suspended for a long period of time
SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh

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155307CX0003 - INT 15 - Advanced Power Management v1.2 - TURN OFF SYSTEM

INT 15 - Advanced Power Management v1.2 - TURN OFF SYSTEM
	AX = 5307h
	CX = 0003h
	BX = 0001h (device ID for all power-managed devices)
Return: after system is resumed
	CF clear
Notes:	if supported by the system's power supply, turns off the system power
SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh

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155308 - INT 15 - Advanced Power Management v1.0+ - ENABLE/DISABLE POWER MANAGEMENT

INT 15 - Advanced Power Management v1.0+ - ENABLE/DISABLE POWER MANAGEMENT
	AX = 5308h
	BX = device ID for all devices power-managed by APM
	    0001h (APM v1.1+)
	    FFFFh (APM v1.0)
	CX = new state
	    0000h disabled
	    0001h enabled
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
Notes:	when power management is disabled, the system BIOS will not
	  automatically power down devices, enter stand-by or suspended mode,
	  or perform any power-saving actions in response to AX=5305h calls
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
	the APM BIOS should never be both disabled and disengaged at the same
	  time
SeeAlso: AX=5309h,AX=530Dh,AX=530Fh

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155309 - INT 15 - Advanced Power Management v1.0+ - RESTORE POWER-ON DEFAULTS

INT 15 - Advanced Power Management v1.0+ - RESTORE POWER-ON DEFAULTS
	AX = 5309h
	BX = device ID for all devices power-managed by APM
	    0001h (APM v1.1)
	    FFFFh (APM v1.0)
Return: CF clear if successful
	CF set on error
	    AH = error code (03h,09h,0Bh) (see #00473)
Note:	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5308h

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15530A - INT 15 - Advanced Power Management v1.0+ - GET POWER STATUS

INT 15 - 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
		other reserved
	    BL = battery status (see #00476)
	    CH = battery flag (APM v1.1+) (see #00477)
	    CL = remaining battery life, percentage
		00h-64h (0-100) percentage of full charge
		FFh unknown
	    DX = remaining battery life, time (APM v1.1) (see #00478)
	    ---if specific battery unit specified---
	    SI = number of battery units currently installed
	CF set on error
	    AH = error code (09h,0Ah) (see #00473)
Notes:	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

(Table 00476)
Values for APM v1.0+ battery status:
 00h	high
 01h	low
 02h	critical
 03h	charging
 FFh	unknown
 other	reserved
SeeAlso: #00477,#00478

Bitfields for APM v1.1+ battery flag:
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
Note:	all bits set (FFh) if unknown
SeeAlso: #00476,#00478

Bitfields for APM v1.1+ remaining battery life:
Bit(s)	Description	(Table 00478)
 15	time units: 0=seconds, 1=minutes
 14-0	battery life in minutes or seconds
Note:	all bits set (FFFFh) if unknown
SeeAlso: #00476,#00477

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15530B - INT 15 - Advanced Power Management v1.0+ - GET POWER MANAGEMENT EVENT

INT 15 - Advanced Power Management v1.0+ - GET POWER MANAGEMENT EVENT
	AX = 530Bh
Return: CF clear if successful
	    BX = event code (see #00479)
	    CX = event information (APM v1.2) if BX=0003h or BX=0004h
		bit 0: PCMCIA socket was powered down in suspend state
	CF set on error
	    AH = error code (03h,0Bh,80h) (see #00473)
Notes:	although power management events are often asynchronous, notification
	  will not be made until polled via this call to permit software to
	  only receive event notification when it is prepared to process
	  power management events; since these events are not very time-
	  critical, it should be sufficient to poll once or twice per second
	the critical resume notification is made after the system resumes
	  from an emergency suspension; normally, the system BIOS only notifies
	  its partner that it wishes to suspend and relies on the partner to
	  actually request the suspension, but no notification is made on an
	  emergency suspension
	should not be called from within a hardware interrupt handler to avoid
	  reentrance problems
SeeAlso: AX=5307h,AX=5307h/CX=0001h"STAND-BY",AX=5307h/CX=0002h"SUSPEND"

(Table 00479)
Values for APM event code:
 0001h	system stand-by request
 0002h	system suspend request
 0003h	normal resume system notification
 0004h	critical resume system notification
 0005h	battery low notification
---APM v1.1---
 0006h	power status change notification
 0007h	update time notification
 0008h	critical system suspend notification
 0009h	user system standby request notification
 000Ah	user system suspend request notification
 000Bh	system standby resume notification
---APM v1.2---
 000Ch	capabilities change notification (see AX=5310h)
------
 000Dh-00FFh reserved system events
 01xxh	reserved device events
 02xxh	OEM-defined APM events
 0300h-FFFFh reserved

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15530C - INT 15 - Advanced Power Management v1.1+ - GET POWER STATE

INT 15 - Advanced Power Management v1.1+ - GET POWER STATE
	AX = 530Ch
	BX = device ID (see #00474)
Return: CF clear if successful
	    CX = system state ID (see #00475)
	CF set on error
	    AH = error code (01h,09h) (see #00473)
SeeAlso: AX=5307h

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15530D - INT 15 - Advanced Power Management v1.1+ - EN/DISABLE DEVICE POWER MANAGEMENT

INT 15 - Advanced Power Management v1.1+ - EN/DISABLE DEVICE POWER MANAGEMENT
	AX = 530Dh
	BX = device ID (see #00474)
	CX = function
	    0000h disable power management
	    0001h enable power management
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
Desc:	specify whether automatic power management should be active for a
	  given device
SeeAlso: AX=5308h,AX=530Fh

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15530E - INT 15 - Advanced Power Management v1.1+ - DRIVER VERSION

INT 15 - Advanced Power Management v1.1+ - DRIVER VERSION
	AX = 530Eh
	BX = device ID of system BIOS (0000h)
	CH = APM driver major version (BCD)
	CL = APM driver minor version (BCD) (02h for APM v1.2)
Return: CF clear if successful
	    AH = APM connection major version (BCD)
	    AL = APM connection minor version (BCD)
	CF set on error
	    AH = error code (03h,09h,0Bh) (see #00473)
SeeAlso: AX=5300h,AX=5303h

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15530F - INT 15 - Advanced Power Management v1.1+ - ENGAGE/DISENGAGE POWER MANAGEMENT

INT 15 - Advanced Power Management v1.1+ - ENGAGE/DISENGAGE POWER MANAGEMENT
	AX = 530Fh
	BX = device ID (see #00474)
	CX = function
	    0000h disengage power management
	    0001h engage power management
Return: CF clear if successful
	CF set on error
	    AH = error code (01h,09h) (see #00473)
Notes:	unlike AX=5308h, this call does not affect the functioning of the APM
	  BIOS
	when cooperative power management is disengaged, the APM BIOS performs
	  automatic power management of the system or device
SeeAlso: AX=5308h,AX=530Dh

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155310 - INT 15 - Advanced Power Management v1.2 - GET CAPABILITIES

INT 15 - Advanced Power Management v1.2 - GET CAPABILITIES
	AX = 5310h
	BX = device ID (see #00474)
	    0000h (APM BIOS)
	    other reserved
Return: CF clear if successful
	    BL = number of battery units supported (00h if no system batteries)
	    CX = capabilities flags (see #00480)
	CF set on error
	    AH = error code (01h,09h,86h) (see #00473)
Notes:	this function is supported via the INT 15, 16-bit protected mode, and
	  32-bit protected mode interfaces; it does not require that a
	  connection be established prior to use
	this function will return the capabilities currently in effect, not
	  any new settings which have been made but do not take effect until
	  a system restart
SeeAlso: AX=5300h,AX=530Fh,AX=5311h,AX=5312h,AX=5313h

Bitfields for APM v1.2 capabilities flags:
Bit(s)	Description	(Table 00480)
 15-8	reserved
 7	PCMCIA Ring Indicator will wake up system from suspend mode
 6	PCMCIA Ring Indicator will wake up system from standby mode
 5	Resume on Ring Indicator will wake up system from suspend mode
 4	Resume on Ring Indicator will wake up system from standby mode
 3	resume timer will wake up system from suspend mode
 2	resume timer will wake up system from standby mode
 1	can enter global suspend state
 0	can enter global standby state

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155311 - INT 15 - Advanced Power Management v1.2 - GET/SET/DISABLE RESUME TIMER

INT 15 - Advanced Power Management v1.2 - GET/SET/DISABLE RESUME TIMER
	AX = 5311h
	BX = device ID (see #00474)
	    0000h (APM BIOS)
	    other reserved
	CL = function
	    00h disable Resume Timer
	    01h get Resume Timer
	    02h set Resume Timer
		CH = resume time, seconds (BCD)
		DL = resume time, minutes (BCD)
		DH = resume time, hours (BCD)
		SI = resume date (BCD), high byte = month, low byte = day
		DI = resume date, year (BCD)
Return: CF clear if successful
	    ---if getting timer---
	    CH = resume time, seconds (BCD)
	    DL = resume time, minutes (BCD)
	    DH = resume time, hours (BCD)
	    SI = resume date (BCD), high byte = month, low byte = day
	    DI = resume date, year (BCD)
	CF set on error
	    AH = error code (03h,09h,0Ah,0Bh,0Ch,0Dh,86h) (see #00473)
Notes:	this function is supported via the INT 15, 16-bit protected mode, and
	  32-bit protected mode interfaces
SeeAlso: AX=5300h,AX=5310h,AX=5312h,AX=5313h

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155312 - INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE RESUME ON RING

INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE RESUME ON RING
	AX = 5312h
	BX = device ID (see #00474)
	    0000h (APM BIOS)
	    other reserved
	CL = function
	    00h disable Resume on Ring Indicator
	    01h enable Resume on Ring Indicator
	    02h get Resume on Ring Indicator status
Return: CF clear if successful
	    CX = resume status (0000h disabled, 0001h enabled)
	CF set on error
	    AH = error code (03h,09h,0Ah,0Bh,0Ch,86h) (see #00473)
Notes:	this function is supported via the INT 15, 16-bit protected mode, and
	  32-bit protected mode interfaces
SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5313h

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155313 - INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE TIMER-BASED REQUESTS

INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE TIMER-BASED REQUESTS
	AX = 5313h
	BX = device ID (see #00474)
	    0000h (APM BIOS)
	    other reserved
	CL = function
	    00h disable timer-based requests
	    01h enable timer-based requests
	    02h get timer-based requests status
Return: CF clear if successful
	    CX = timer-based requests status (0000h disabled, 0001h enabled)
	CF set on error
	    AH = error code (03h,09h,0Ah,0Bh,86h) (see #00473)
Notes:	this function is supported via the INT 15, 16-bit protected mode, and
	  32-bit protected mode interfaces
	some BIOSes set AH on return even when successful
SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5312h

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155380BH00 - INT 15 - APM SL Enhanced v1.0 - GET SUSPEND/GLOBAL STANDBY MODE

INT 15 - APM SL Enhanced v1.0 - GET SUSPEND/GLOBAL STANDBY MODE
	AX = 5380h
	BH = 00h
Return: CF clear if successful
	    AL = 82360SL Auto Power Off Timer High Count (APWR_TMRH)
	    BL = sustdbymode (see #00481)
SeeAlso: AX=5380h/BH=01h,AX=5380h/BH=02h,AX=5380h/BH=7Fh

Bitfields for APM SL sustdbymode:
Bit(s)	Description	(Table 00481)
 2	???
 1	Auto Power Off Timer Enable (APWR_TMR_EN)
 0	???

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155380BH01 - INT 15 - APM SL Enhanced v1.0 - SET SUSPEND/GLOBAL STANDBY MODE

INT 15 - APM SL Enhanced v1.0 - SET SUSPEND/GLOBAL STANDBY MODE
	AX = 5380h
	BH = 01h
	BL = sustdbymode (see #00481)
Return: CF clear if successful
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh

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155380BH02 - INT 15 - APM SL Enhanced v1.0 - GET GLOBAL STANDBY TIMER

INT 15 - APM SL Enhanced v1.0 - GET GLOBAL STANDBY TIMER
	AX = 5380h
	BH = 02h
Return: CF clear if successful
	SI:DI = timer count in seconds (actually 1.024 seconds)
Desc:	reads the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=03h,AX=5380h/BH=04h,AX=5380h/BH=7Fh

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155380BH03 - INT 15 - APM SL Enhanced v1.0 - SET GLOBAL STANDBY TIMER

INT 15 - APM SL Enhanced v1.0 - SET GLOBAL STANDBY TIMER
	AX = 5380h
	BH = 03h
	SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc:	sets the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
Note:	the maximum timer count is 268431 seconds
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=7Fh

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155380BH04 - INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER

INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER
	AX = 5380h
	BH = 04h
Return: CF clear if successful
	SI:DI = timer count in seconds (actually 1.024 seconds)
Desc:	reads the value of 82360SL APWR_TMRH & APWR_TMRL registers
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=05h,AX=5380h/BH=06h,AX=5380h/BH=7Fh

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155380BH05 - INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER

INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER
	AX = 5380h
	BH = 05h
	SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc:	sets the value of 82360SL APWR_TMRH & APWR_TMRL registers
Note:	the maximum timer count is 134213 seconds
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=7Fh

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155380BH06 - INT 15 - APM SL Enhanced v1.0 - GET RESUME CONDITION

INT 15 - APM SL Enhanced v1.0 - GET RESUME CONDITION
	AX = 5380h
	BH = 06h
Return: CF clear if successful
	    BL = resume condition (see #00482)
Desc:	reads the value of 82360SL RESUME_MASK register
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=07h,AX=5380h/BH=08h,AX=5380h/BH=7Fh

Bitfields for APM SL resume condition:
Bit(s)	Description	(Table 00482)
 7-2	reserved (0)
 1	alarm enabled (resume on CMOS alarm)
 0	ring enabled

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155380BH07 - INT 15 - APM SL Enhanced v1.0 - SET RESUME CONDITION

INT 15 - APM SL Enhanced v1.0 - SET RESUME CONDITION
	AX = 5380h
	BH = 07h
	BL = resume condition (see #00482)
Return: CF clear if successful
Desc:	sets the value of 82360SL RESUME_MASK register
SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=7Fh

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155380BH08 - INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT TIME

INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT TIME
	AX = 5380h
	BH = 08h
Return: CF clear if successful
	    CH = hours
	    CL = minutes
	    SI = seconds
	CF set on error
	    AH = error code (see #00483)
Desc:	gets calendar event time from CMOS ram
SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=09h,AX=5380h/BH=0Ah,AX=5380h/BH=7Fh

(Table 00483)
Values for APM SL error code:
 02h	no alarm set
 03h	no battery

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155380BH09 - INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT TIME

INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT TIME
	AX = 5380h
	BH = 09h
	CH = hours
	CL = minutes
	SI = seconds
Return: CF clear if successful
	CF set on error
	    AH = error code (see #00483)
Desc:	sets calendar event time in CMOS ram, enables Alarm resume
SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=7Fh

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155380BH0A - INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT DATE

INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT DATE
	AX = 5380h
	BH = 0Ah
Return: CF clear if successful
	    SI = century
	    DI = year
	    CH = month
	    CL = day
	CF set on error
	    AH = error code (see #00483)
Desc:	reads calendar event date from Extended CMOS ram
SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=0Bh,AX=5380h/BH=0Ch,AX=5380h/BH=7Fh

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155380BH0B - INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT DATE

INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT DATE
	AX = 5380h
	BH = 0Bh
	SI = century
	DI = year
	CH = month
	CL = day
Return: CF clear if successful
	CF set on error
	    AH = error code (see #00483)
Desc:	sets calendar event date in Extended CMOS ram
SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=7Fh

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155380BH0C - INT 15 - APM SL Enhanced v1.0 - GET CPU SPEED MODE

INT 15 - APM SL Enhanced v1.0 - GET CPU SPEED MODE
	AX = 5380h
	BH = 0Ch
Return: CF clear if successful
	CL = CPU clock divider (1,2,4 or 8)
	BL = autocpumode ???
Desc:	reads bits 4-5 of CPUPWRMODE register
SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=0Dh,AX=5380h/BH=7Fh

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155380BH0D - INT 15 - APM SL Enhanced v1.0 - SET CPU SPEED MODE

INT 15 - APM SL Enhanced v1.0 - SET CPU SPEED MODE
	AX = 5380h
	BH = 0Dh
	CL = CPU clock divider (1,2,4 or 8)
	BL = autocpumode ???
Return: CF clear if successful
Desc:	writes bits 4-5 of CPUPWRMODE register
SeeAlso: AX=5380h/BH=0Ch,AX=5380h/BH=7Eh,AX=5380h/BH=7Fh

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155380BH7E - INT 15 - APM SL Enhanced v1.0 - SL HW PARAMETER

INT 15 - APM SL Enhanced v1.0 - SL HW PARAMETER
	AX = 5380h
	BH = 7Eh
Return: AL = ???
	    03h on A-Step 386SL BIOSes
	    12h on later steps
	BX = Control port (00B0h)
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh

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155380BH7F - INT 15 - Advanced Power Management v1.1 - OEM APM INSTALLATION CHECK

INT 15 - Advanced Power Management v1.1 - OEM APM INSTALLATION CHECK
	AX = 5380h
	BH = 7Fh
Return: CF clear if successful
	    BX = OEM identifier
	    all other registers OEM-defined
	    ---Intel SL Enhanced Option BIOS---
	    BX = 534Ch ('SL')
	    CL = 4Fh ('O')
	    AL = version (10h = 1.0)
	    ---HP APM BIOS---
	    BX = 4850h ('HP')
	    CX = version (0001h)
	CF set on error
	    AH = error code (03h) (see #00473)
SeeAlso: AX=5380h/BH=00h

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155380 - INT 15 - Advanced Power Management v1.1 - OEM APM FUNCTIONS

INT 15 - Advanced Power Management v1.1 - OEM APM FUNCTIONS
	AX = 5380h
	BH <> 7Fh
	all other registers OEM-defined
Return: OEM-defined
SeeAlso: AX=5380h/BH=7Fh

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155380BX8000 - INT 15 U - Phoenix BIOS 4.0 Rel 6.0 - ???

INT 15 U - Phoenix BIOS 4.0 Rel 6.0 - ???
	AX = 5380h
	BX = 8000h
	CX = 0020h
Return: ???
Note:	although a check for the indicated value is present in the examined
	  copy of the BIOS, no code was associated with it (possibly an OEM
	  option not included in that copy) and this function always returns
	  CF set/AH=03h if CX=0020h and CF set/AH=86h for CX<>0020h
SeeAlso: AX=5380h/BX=8001h

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155380BX8001 - INT 15 U - Phoenix BIOS 4.0 Rel 6.0 - ???

INT 15 U - Phoenix BIOS 4.0 Rel 6.0 - ???
	AX = 5380h
	BX = 8001h
	CX = 0020h
Return: ???
Note:	although a check for the indicated value is present in the examined
	  copy of the BIOS, no code was associated with it (possibly an OEM
	  option not included in that copy)
SeeAlso: AX=5380h/BX=8000h

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156000 - INT 15 U - HP 100LX/200LX - GET MAIN BATTERY LEVEL

INT 15 U - HP 100LX/200LX - GET MAIN BATTERY LEVEL
	AX = 6000h
Return: AX = battery level
Note:	multiply the returned value with 1Bh and add 622h to get millivolts
SeeAlso: AX=6001h,AX=6002h,AX=6003h,AX=6004h

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156001 - INT 15 U - HP 100LX/200LX - GET BACKUP BATTERY LEVEL

INT 15 U - HP 100LX/200LX - GET BACKUP BATTERY LEVEL
	AX = 6001h
Return: AX = battery level
Note:	multiply the returned value with 1Bh and add 622h to get millivolts
SeeAlso: AX=6000h,AX=6002h

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156002 - INT 15 U - HP 100LX/200LX - GET POWER INFO

INT 15 U - HP 100LX/200LX - GET POWER INFO
	AX = 6002h
Return: AL = power settings (see #00493)
SeeAlso: AX=6000h,AX=6003h,AX=6004h

Bitfields for power settings:
Bit(s)	Description	(Table 00493)
 0-1	unused ???
 2	card battery status low (OK if bit clear)
 3	battery charging off (disabled if bits 3-5 clear)
 4	battery charging slow
 5	battery charging fast
 6	power adaptor active
 7	battery type NiCad (alkaline if bit clear)

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156003 - INT 15 U - HP 100LX/200LX - SET MAIN BATTERY TYPE

INT 15 U - HP 100LX/200LX - SET MAIN BATTERY TYPE
	AX = 6003h
	BL = battery type
	    00h alkaline
	    01h NiCad
SeeAlso: AX=6000h,AX=6004h

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156004 - INT 15 U - HP 100LX/200LX - SET BATTERY CHARGING MODE

INT 15 U - HP 100LX/200LX - SET BATTERY CHARGING MODE
	AX = 6004h
	BL = charging
	    00h disabled
	    01h enabled
SeeAlso: AX=6000h,AX=6003h

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15BA20 - INT 15 - HP OmniShare - STANDBY.COM - INSTALLATION CHECK

INT 15 - HP OmniShare - STANDBY.COM - INSTALLATION CHECK
	AX = BA20h
Return: CF clear if successful (installed)
	CF set on error (not installed)
Notes:	The display controller can enter a standby mode after a given timeout,
	  to conserve power or (for the OmniShare) to increase the life of
	  the backlight.
	A side effect of standby mode is that the communications LED turns on
	  automatically when the display is in standby mode.  This is done in
	  hardware, and is intended to show that the unit is still on.
SeeAlso: AX=BA10h,AX=BA20h,AX=BA22h,AX=BA24h,AX=BA26h

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15BA21 - INT 15 - HP OmniShare - STANDBY.COM - SET STANDBY DURATION

INT 15 - HP OmniShare - STANDBY.COM - SET STANDBY DURATION
	AX = BA21h
	BL = new timeout before standby mode in minutes (01h-0Fh)
	    00h to disable automatic switch to standby mode
Return: CF clear if successful
	CF set on error (function not supported)
Note:	The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
	  instead of (N*60) seconds as documented.
SeeAlso: AX=BA20h,AX=BA22h

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15BA22 - INT 15 - HP OmniShare - STANDBY.COM - GET STANDBY DURATION

INT 15 - HP OmniShare - STANDBY.COM - GET STANDBY DURATION
	AX = BA22h
Return: CF clear if successful
	   BL = standy duration in minutes (01h-0Fh), or 00h if disabled
	CF set on error (function not supported)
Note:	The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
	  instead of (N*60) seconds as documented.
SeeAlso: AX=BA20h,AX=BA21h

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15BA23 - INT 15 - HP OmniShare - STANDBY.COM - TURN ON THE SCREEN IMMEDIATELY

INT 15 - HP OmniShare - STANDBY.COM - TURN ON THE SCREEN IMMEDIATELY
	AX = BA23h
Return: CF clear if successful
	CF set on error
SeeAlso: AX=BA11h,AX=BA20h,AX=BA24h

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15BA24 - INT 15 - HP OmniShare - STANDBY.COM - TURN OFF THE SCREEN IMMEDIATELY

INT 15 - HP OmniShare - STANDBY.COM - TURN OFF THE SCREEN IMMEDIATELY
	AX = BA24h
Return: CF clear if successful
	CF set on error
Note:	This function is not implemented yet. Reserved for future versions
	  of the OmniShare.
SeeAlso: AX=BA11h,AX=BA20h,AX=BA23h

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15BA25 - INT 15 - HP OmniShare - STANDBY.COM - PREPARE FOR UNINSTALL

INT 15 - HP OmniShare - STANDBY.COM - PREPARE FOR UNINSTALL
	AX = BA25h
Return: CF clear if successful
	    AX = 25BAh
	    BX = PSP of STANDBY.COM resident portion
	    DX:CX -> previous INT 15 handler
	CF set on error
Note:	This function is used internally by the STANDBY.COM /u option, and
	  should not be used by application programs.
SeeAlso: AX=BA20h

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15BA26 - INT 15 - HP OmniShare - STANDBY.COM - IS THE DISPLAY IN STANDBY MODE?

INT 15 - HP OmniShare - STANDBY.COM - IS THE DISPLAY IN STANDBY MODE?
	AX = BA26h
Return: CF clear if successful
	    AL	= display state (00h active, 01h in standby mode)
	CF set on error (function not supported)
SeeAlso: AX=BA20h,AX=BA23h

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15BA27 - INT 15 - HP OmniShare - STANDBY.COM - RESERVED FUNCTIONS

INT 15 - HP OmniShare - STANDBY.COM - RESERVED FUNCTIONS
	AX = BA27h to BA2Fh
Desc:	reserved for future use

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174B00 - INT 17 - Brother P-Touch - INSTALLATION CHECK

INT 17 - Brother P-Touch - INSTALLATION CHECK
	AX = 4B00h
Return:	AX = 4249h ('BI' = Brother International) if installed
	    BX = program ID
		4550h ('EP') for "Epson FX-80 Emulator"
		5047h ('PG') for "Printer to Disk Utility"
	    CX = numbero of parallel port being emulated or intercepted
SeeAlso: AX=4B01h

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174B01 - INT 17 - Brother P-Touch - UNINSTALL

INT 17 - Brother P-Touch - UNINSTALL
	AX = 4B01h
Return: AX = segment of resident program or 0000h if unable to uninstall
Note:	the calling program must manually free both the indicated segment
	  and the environment segment for the TSR with INT 21/AH=49h
	  (the environment is pointed at by the WORD at AX:002Ch)
SeeAlso: AX=4B00h,INT 21/AH=49h

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2F4C - INT 2F U - Advanced Power Management

INT 2F U - Advanced Power Management
	AH = 4Ch
	AL = function
	    00h version check
	    01h suspend system requested
	    FFh suspend/resume battery notification
	???
Return: ???

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2F53 - INT 2F U - POWER.EXE - APM event broadcasting???

INT 2F U - POWER.EXE - APM event broadcasting???
	AH = 53h
	AL = event???
	    05h CPU idle
	    0Bh PM event broadcast API
Return: ???
Note:	called by MS Windows 3.1 POWER.DRV; hooked by MS Mouse driver v8.20+
	  and PC-Cache v8.0
SeeAlso: AX=530Bh,AX=5400h,INT 33/AX=002Fh

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2F530B - INT 2F U - ??? (MOUSEPWR.COM, others) - ???

INT 2F U - ??? (MOUSEPWR.COM, others) - ???
	AX = 530Bh
	BX = subfunction
	    0003h ???
	    0004h ???
	???
Return: ???
Note:	it appears that subfunction 0003h reads or restores the current mouse
	  settings (the MS Mouse driver hooks AX=530Bh), and 0004h might be
	  the converse

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2F5400 - INT 2F U - POWER.EXE - INSTALLATION CHECK

INT 2F U - POWER.EXE - INSTALLATION CHECK
	AX = 5400h
Return: AX = POWER.EXE version (AH = major, AL = minor) if installed
	BX = 504Dh ("PM")
	CF clear
Note:	called by MS Windows 3.1 POWER.DRV
SeeAlso: AH=53h,AX=5401h,AX=5402h,AX=5481h,AX=5482h

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2F5401 - INT 2F U - POWER.EXE - GET/SET POWER STATUS

INT 2F U - POWER.EXE - GET/SET POWER STATUS
	AX = 5401h
	BH = function
	    00h get status
		Return: BL = current power management status (see #02837)
	    01h set status
		BL = new power managment status (see #02837)
Return: AX = function status (see #02838)
Note:	called by MS Windows 3.1 POWER.DRV
SeeAlso: AH=53h,AX=5400h,AX=5402h,AX=5403h

Bitfields for power management status:
Bit(s)	Description	(Table 02837)
 0	POWER.EXE power management enabled
 1	APM firmware power management enabled
 2-7	reserved (0)
Notes:	bit 1 is ignored if there is no APM firmware
	bits 1-0: 00 = POWER OFF, 10 = POWER STD, 11 = POWER ADV

(Table 02838)
Values for POWER.EXE function status:
 0000h	successful
 0002h	"ERROR_PM_ALREADY_CONNECTED"
 0003h	"ERROR_PM_NOT_CONNECTED"
 0087h	"ERROR_PM_INVALID_PARAMETER"

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2F5402 - INT 2F U - POWER.EXE - GET/SET IDLE DETECTION STRATEGY

INT 2F U - POWER.EXE - GET/SET IDLE DETECTION STRATEGY
	AX = 5402h
	BH = subfunction
	    00h get
	    other set
		BL = detection strategy (00h-0Fh or FFh)
Return: BX = current/new detection strategy
SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5481h,AX=5482h

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2F5403 - INT 2F U - POWER.EXE - GET/SET ADVANCED POWER MANAGEMENT SETTING

INT 2F U - POWER.EXE - GET/SET ADVANCED POWER MANAGEMENT SETTING
	AX = 5403h
	BX = new power management setting or 0000h to get current setting
Return: AX = status
	    0000h successful
		BX = power management setting (see #02839)
	    other error code
SeeAlso: AX=5401h,AX=5480h

(Table 02839)
Values for power management setting:
 0001h-0005h "min"
 0006h	     "reg"
 0007h-0008h "max"

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2F5480 - INT 2F U - POWER.EXE - GET/SET ???

INT 2F U - POWER.EXE - GET/SET ???
	AX = 5480h
	BX = direction
	    0000h get
	    other set
	CX = size of buffer (at least 0010h)
	DS:SI -> buffer
Return: AX = status
	    0000h successful
	    other error code
SeeAlso: AX=5400h,AX=5481h,AX=548Fh

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2F5481 - INT 2F U - POWER.EXE - GET STATISTICS

INT 2F U - POWER.EXE - GET STATISTICS
	AX = 5481h
	BX = which statistics
	    0000h idle detection
	    0001h APM statistics
	CX = length of buffer in bytes
	DS:SI -> buffer for statistics (see #02843,#02844)
Return: AX = status
	    0000h successful
	    0071h "ERROR_PM_BUFFER_TOO_SMALL"
	    0087h "ERROR_PM_INVALID_PARAMETER"
SeeAlso: AH=53h,AX=5400h,AX=5480h,AX=5402h,AX=5482h

Format of POWER.EXE idle detection statistics:
Offset	Size	Description	(Table 02843)
 00h	DWORD	"CPU_ON_TIME" total time CPU is active with POWER.EXE idle
		  detection enabled, in timer ticks
 04h	DWORD	"CPU_IDLE_TIME" timer ticks during which CPU was idle
		(divide by previous to get idle	rate)
 08h	DWORD	total idle calls
 0Ch	DWORD	"TOTAL_APP_IDLE" total INT 2Fh idle calls
 10h	DWORD	"TOTAL_DOS_YIELD" total INT 28h idle calls
 14h	DWORD	"TOTAL_KEY_IDLE" total INT 16h idle calls
 18h	DWORD	"TOTAL_DOS_IDLE" total INT 2Ah idle calls

Format of APM statistics:
Offset	Size	Description	(Table 02844)
 00h	DWORD	"RESUME_COUNT" total number of resumes since last APM_ENABLE

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2F5482 - INT 2F U - POWER.EXE - GET/SET APM POLLING FREQUENCY

INT 2F U - POWER.EXE - GET/SET APM POLLING FREQUENCY
	AX = 5482h
	BX = new polling frequency or 0000h to get current frequency
Return: AX = 0000h (successful)
	BX = current frequency if BX=0000h on entry
SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5480h,AX=5481h,AX=548Fh

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2F548F - INT 2F U - POWER.EXE - GET/SET ???

INT 2F U - POWER.EXE - GET/SET ???
	AX = 548Fh
	BX = ??? or 0000h to get current ???
Return: AX = 0000h (successful)
	BX = current ???
	CX = ???
SeeAlso: AX=5400h,AX=5480h,AX=5482h

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