HP Vectra Technical Reference Manual page 443

SF__
DEF~TTR
(AX
=
0208H)
Returns a pointer in ES:DI to a parameter block containing the driver's default configuration
values. This function does not set the defaults; it only reports them.
On Entry: AH = F __SYSTEM (02H)
AL
=
SF__DEF
~
DR (08H)
BP
=
Driver's vector address
On Exit: AH
=
Return Status Code
CX
=
Number of bytes in data buffer
ES:DI
=
Pointer to a data buffer
SF__
GET~TTR
(AX = 020AH)
Reports the configuration values defined by the parameter block. Baud rates, HPIB addresses,
etc. may be reported by this command.
On Entry: AH
=
F __SYSTEM (02H)
AL
=
SF__
GET~DR
(OAH)
BP
=
Driver's vector address
On Exit: AH
=
Return Status Code
CX
=
Number of bytes in data buffer
ES:DI = Pointer to a data buffer
SF__
SET~TTR
(AX
=
020CH)
Sets the parameter block defined by ES:DI as the configuration values. Baud rates, HPIB
addresses, etc. may be defined by this command.
On Entry: AH
=
F__SYSTEM (02H)
AL
=
SF__SET
~
DR (OCH)
BP
=
Driver's vector address
CX
=
Number of bytes in data buffer
ES:DI = Pointer to a data buffer
On Exit: AH
=
Return Status Code
ES:DI
=
Pointer to a data buffer
434 Driver Writer's Guide