Define the following items as fixed-sized memory pool information:

1 ) Fixed-sized memory pool name: mpfid

2 ) Attribute (queuing method): mpfatr

3 ) Total number of memory blocks: blkcnt

4 ) Memory block size: blksz

5 ) Section name: sec_nam

6 ) System-reserved area: mpf

The number of fixed-sized memory pool information items that can be specified is defined as being within the range of 0 to 127.

The following shows the fixed-sized memory pool information format.

CRE_MPF ( mpfid, { mpfatr, blkcnt, blksz[:sec_nam], mpf } );

The items constituting the fixed-sized memory pool information are as follows.

1 ) Fixed-sized memory pool name: mpfid

Specifies the fixed-sized memory pool name.
An object name can be specified for mpfid.

Note The CF78V4 outputs to the system information header file the correspondence between the fixed-sized memory pool names and IDs, in the following format. Consequently, fixed-sized memory pool names can be used in the place of IDs by including the relevant system information header file using the processing program.

[ Output format to system information header file (for C) ]

#define mpfid ID

[ Output format to system information header file (for assembly language) ]

mpfid .EQU ID

2 ) Attribute (queuing method): mpfatr

Specifies the attribute (queuing method) of the fixed-sized memory pool.
The keywords that can be specified for mpfatr are TA_TFIFO.

[ Queuing method ]

TA_TFIFO: If a memory block could not be acquired (no available memory blocks exist) when get_mpf or tget_mpf is issued, the task is queued to the fixed-sized memory pool wait queue in the order of memory block acquisition request.

3 ) Total number of memory blocks: blkcnt

Specifies the total number of memory blocks.
A value between 1 and 16383 can be specified for blkcnt.

4 ) Memory block size: blksz

Specifies the memory block size (in bytes).
A value between 4 and 65534, aligned to a 2-byte boundary, can be specified for blksz.

5 ) Section name: sec_nam

Specifies where the fixed-sized memory pool is to be allocated.

Values that can be specified for sec_nam are limited to kernel_work0, kernel_work1, kernel_work2, or kernel_work3.

[ Fixed-sized memory pool allocation section ]

kernel_work0: Allocates the fixed-sized memory pool to the .kernel_work0 section.

kernel_work1: Allocates the fixed-sized memory pool to the .kernel_work1 section.

kernel_work2: Allocates the fixed-sized memory pool to the .kernel_work2 section.

kernel_work3: Allocates the fixed-sized memory pool to the .kernel_work3 section.

Note If specification of seg_nam is omitted, the fixed-sized memory pool is allocated to the .kernel_work0 section.

6 ) System-reserved area: mpf

System-reserved area.
Values that can be specified for mpf are limited to NULL characters.