# IC_Disable

## Syntax

      #include <nitro/os.h>

      BOOL IC_Disable( void );

## Arguments

None.

## Return Values

Previous permission/prohibition setting for instruction cache use.

## Description

Prohibits the use of all instruction cache The return value is the instruction cache permission/prohibit setting before this function was called. When `TRUE`, use of the cache was permitted; when `FALSE`, it was prohibited.

## Internal Operation

Operates register 1 of the system control coprocessor.

## See Also

`IC_Enable
`

## Revision History

2003/12/22 Initial version.

CONFIDENTIAL