App
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Appendix 5 Method of replacing High Performance model QCPU with Universal model QCPU
APPENDICES
(c) Program after replacement
In the sequence program after replacement, three programs are required as
shown below.
A sample program can be downloaded from the MELFANSweb.
1) Main routine program
• Replace the PR instruction with the CALL instruction so that a subroutine
program is called.
• Output string storage device ( "D0" in the program below) cannot be
specified directly with the CALL instruction.
• Use the ADRSET instruction to acquire the indirect address for the CALL
instruction.
• Y device ( "Y100" in the program before replacement shown in (b)) cannot
be specified directly as output Y number with the CALL instruction. Specify
the output Y number in integer.
• An interrupt program is used to output character codes via the output
module. Enable the execution of interrupt program using the
EI instruction.
Figure App.7 Program execution
Figure App.8 Sample program
FEND
RET
IRET
END
P1
I31
<After transition>
END
<Before transition>
Output strings and output string storage address are set.
Initial processing
The strings stored in D0 are output.
Main routine
program
Main routine
program
Subroutine
program
Interrupt
program
The strings stored in D0 or later
are output to Y100 to Y108.
An execution of interrupt program is
enabled.
