Development Tools

-use_mda

This option specifies whether to use the arithmetic unit.

[Specification format]

-use_mda={not_use|mda}

  not_use: Generates a code that does not use the division/multiplication and multiply-accumulate unit.

  mda: Generates a code that uses the division/multiplication and multiply-accumulate unit.

-	Interpretation when omitted

When the -cpu=S1 or -cpu=S3 option is specified, the code is the same as when the -use_mda=not_use option is specified.

When the -cpu=S2 option is specified, the code is the same as when the -use_mda=mda option is specified.

[Detailed description]

-	This option specifies whether to use the arithmetic unit.

-	This option only specifies the instruction set and architecture and does not specify whether the division/multiplication and multiply-accumulate unit is implemented.

-	The following shows the ccrl operation when both this option and the -cpu option are specified.

[Example of use]

-	To generate a code that uses the division/multiplication and multiply-accumulate unit, describe as:

>ccrl -use_mda=mda -cpu=S2 -dev=dr5f100pj.dvf main.c