6.55.6.5 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 will be issued in slot I1.