
HP 82153A - Wand Owner Manual - page 12
How
WNDDTX
works:
1. Using the following format place a data control number into the X-register.
bbb.eee
bbb
is the beginning (lowest numbered) data storage register address used and
eee
is the ending (highest numbered) data
storage register address used. The
bbb
portion can be less than three digits. The
eee
portion
must
be three digits. The absolute
value of
bbb.eee
is used to select the series of consecutively numbered data storage registers in which to store the data. For
example, when using
WNDDTX
with 10,020 in the X-register, the calculator stores data in 11 registers, R
10
through R
20
.
2. Execute
WNDDTX
. The HP-41C then prompts you to scan the data bar code rows, one at a time, by displaying
W: SC TO
nn
nn
is the storage register to receive the data from the next row of data bar code scan. Each time you scan a data bar code row,
nn
automatically increments by one. When data has been stored in all registers specified by
bbb.eee
, program execution
resumes.
When using
WNDDTX
to load data into only one register, simply enter that register address as
bbb
and omit the
eee
portion of the data
control number.
WNDLNK
The
WNDLNK
(wand link)
function causes the calculator to halt program execution so that you can using the wand to load and
automatically execute a new subroutine. If the new subroutine terminates with a
RTN
instruction, the HP-41C will then automatically
resume execution of the original program. The new subroutine you scan replaces the last program in memory * unless one of the
following conditions applies:
1. The executing
WNDLNK
instruction is the last program in memory, or
2.
WNDLNK
is executed manually while the calculator is positioned to the last program in memory.
When
WNDLNK
is executed, the HP-41C prompts you with
W: SCN SUBLNK
After you scan the first row of the new subroutine, the HP-41C begins to prompt you in the same manner as other program bar code
scans, i.e., with
W: RDY
nn
Main Program
New Program
or Subroutine
instruction
instruction
WNDLNK
instruction
instruction
LBL
XXX
instruction
instruction
RTN
1. The HP-41C halts execution and prompts you with
W: SCN SUBLNK
2. You scan the new subroutine.
3. The HP-41C automatically executes the new
subroutine.
4. The HP-41C automatically resumes execution of
the main program.
*
Executing
GTO
·
·
before executing
WNDLNK
protects all programs currently in memory from being cleared by the new subroutine.
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