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826
Subroutines
Section 3-19
Applicable Program Areas
Operands
N: Global subroutine number
Specifies the global subroutine number between 0 and 1023 decimal.
Note
For CJ1M-CPU11 and CJ1M-CPU21 CPU Units, the subroutine number must
be between the range 0 to 255 decimal.
Operand Specifications
Note
For CJ1M-CPU11 and CJ1M-CPU21 CPU Units, the range is 0 to 255 deci-
mal.
Description
GSBS(750) calls the global subroutine with the specified global subroutine
number. The global subroutine is the program section between GSBN(751)
and GRET(752). When the global subroutine is completed, program execution
continues with the next instruction after GSBS(750).
This instruction can be written into multiple tasks with the same global subrou-
tine number to call that program from the different tasks. The program can be
modularized by making global subroutines into standard subroutines that are
common to many tasks.
The global subroutine region (between GSBN(751) and GRET(752)) must be
defined in interrupt task 0. If it is defined in another task, an error will occur
and the Error Flag will be turned ON when the GSBS(750) instruction is exe-
cuted.
The GSBS(750) instruction can be written in both cyclic tasks (including extra
cyclic tasks) and interrupt tasks.
Block program areas
Step program areas
Subroutines
Interrupt tasks
OK
OK
OK
OK
Area
N
CIO Area
---
Work Area
---
Holding Bit Area
---
Auxiliary Bit Area
---
Timer Area
---
Counter Area
---
DM Area
---
EM Area without bank
---
EM Area with bank
---
Indirect DM/EM
addresses in binary
---
Indirect DM/EM
addresses in BCD
---
Constants
0 to 1023 (decimal) (See note.)
Data Registers
---
Index Registers
---
Indirect addressing
using Index Registers
---
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...