6.59.12.5 Other Built-in Functions

This section describes built-in functions that are not named after a specific FR-V instruction.

sw2 __IACCreadll (iacc reg )
Return the full 64-bit value of IACC0. The reg argument is reserved for future expansion and must be 0.
sw1 __IACCreadl (iacc reg )
Return the value of IACC0H if reg is 0 and IACC0L if reg is 1. Other values of reg are rejected as invalid.
void __IACCsetll (iacc reg , sw2 x )
Set the full 64-bit value of IACC0 to x . The reg argument is reserved for future expansion and must be 0.
void __IACCsetl (iacc reg , sw1 x )
Set IACC0H to x if reg is 0 and IACC0L to x if reg is 1. Other values of reg are rejected as invalid.
void __data_prefetch0 (const void * x )
Use the dcpl instruction to load the contents of address x into the data cache.
void __data_prefetch (const void * x )
Use the nldub instruction to load the contents of address x into the data cache. The instruction is issued in slot I1.