SECTION 2
Supporting DOS Applications
PEN*KEY
R
6200/6300 Hand-Held Computer Programmer’s Reference Guide 2-13
NORAND Proprietary System Interfaces
NORAND Proprietary System functions are part of the INT 15h interface for the
PEN*KEY 6000 Series platforms. These interrupt functions are provided by
NORAPM.EXE and are callable only after NORAPM.EXE is loaded.
The interrupts can convert applications from the 4000 Series platform to the
PEN*KEY 6000 Series platforms. See the
Interrupts
paragraph in Section 6.
When creating new applications, see the
APM BIOS Interface Specification 1.1
publication from Intel Corporation for portable definitions of the functions
required for these system interfaces, rather than using the following interrupts.
Calling Convention
Call these functions by loading register AX with 5380h, loading the other
registers in the function description, and issuing a call to INT 15h. Each
function returns with the carry flag cleared and AH equal to zero if the function
succeeds. If the function fails, each function returns with the carry flag set and
AH set to an error code.
Supported Proprietary System Interrupts
A list of the NORAND Proprietary System interrupts, supported by the Power
Management BIOS, are included with the other Power Management interrupts,
as shown in Table 2Ć1 on page 2Ć12. The Power Management interrupts are
identified by the symbolic notation,
NORAPM
.
Power Management Clock Driver: CLOCK.EXE
CLOCK.EXE is part of the APM system when running under DOS. CLOCK is a
device driver that replaces the standard DOS clock driver. It must be installed
as a device driver at system startup time.
Besides the normal clock driver functions, CLOCK makes sure that the date and
time are maintained during suspends. It does this by forcing a read from the
CMOS realĆtime clock upon Resume.
Installing CLOCK.EXE
CLOCK is installed as a device driver in the CONFIG.SYS file. CLOCK should
be installed after NPOWER.EXE. A typical entry in CONFIG.SYS to install
CLOCK would look like this:
DEVICE=NORAPM.EXE
DEVICE=NPOWER.EXE
DEVICE=CLOCK.EXE
After installation, CLOCK displays the following message:
CLOCK.SYS: NORAND DOS Clock Driver
Version n.nn
Copyright (c) nnnn by Norand Corporation
All rights reserved.
"
NOTE:
In future revisions of this product, the name, Intermec Technologies Corporation, may appear
after the Copyright in the line.
Installation Switches
There are no installation switches or userĆprogrammable parts of CLOCK.EXE.
2. DOS
Applications
