HP Vectra Technical Reference Manual page 123

On Entry: AH
=
F_IO_CONTROL (04H)
AL
=
SF_CRV_DISABLE_REPEAT (OEH)
BX
=
Device address indicator
Bit
OFH-OEH
ODH
OCH
OBH-OOH
Value Definition
Reserved
1 Valid address is present in DH.
o
Reserved for future enhancement, currently returns
RS_FAIL.
Valid register is present in DL.
Reserved
DH
=
HP-HIL device address (major address)
BP
=
V_HPHIL (0114H)
On Exit: AH
=
Return Status Code
Registers Altered: AX, BP, DS
This subfunction initiates device self-test on the specified HP-HIL device. The HP-HIL device will
~
respond with a one byte status code indicating the result of the test. This subfunction should not
be called with an HP-HIL device address of zero (all devices), as the test could then take up to 1.5
seconds to execute. Also, if one of the devices fails, there would be no way to determine which
device reported a failure.
On exit the buffer has the return status of the self-test done on the physical device.
On Entry: AH
=
F_IO_CONTROL (04H)
AL
=
SF_CRV_SELF_TEST (10H)
BX
=
Device address indicator
Bit
OFH-OEH
ODH
OCH
OBH-OOH
Value Definition
Reserved
1 Valid address is present in [)H
o
Reserved for future enhancement, currently returns
RS_FAIL
Valid register is present in [IL
Reserved
DH
=
HP-HIL device address (major address)
BP
=
V_HPHIL (0114H)
ES:SI
=
Pointer to a
buff_~r
area
114 Input System and HP-HIL