HP Vectra Technical Reference Manual page 127

On Entry: AH
=
F _PUT_BYTE (06H)
AL
=
Byte to output
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
DL
=
HP-HIL device register (0-127)
BP
=
V_HPHIL (0114H)
On Exit: AH
=
Return Status Code
Registers Altered: AX, BP, DS
This function returns the contents of a specific HP-HIL device register. This function will only
operate if the HP-HIL driver is in the open state.
On Entry: AH = F _GET_BYTE (08H)
BX
=
Device address indicator
Bit
OFH-OEH
OFH-OEH
ODH
OCH
OBH-OOH
Value Definition
Reserve 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
DL
=
HP-HIL device register (0-127)
BP
=
V_HPHIL (0114H)
118 Input System and HP-HIL