5.47.4.4 Raw read/write Functions

This sections describes built-in functions related to read and write instructions to access memory. These functions generate membar instructions to flush the I/O load and stores where appropriate, as described in Fujitsu's manual described above.

unsigned char __builtin_read8 (void * data )

unsigned short __builtin_read16 (void * data )

unsigned long __builtin_read32 (void * data )

unsigned long long __builtin_read64 (void * data )

void __builtin_write8 (void * data , unsigned char datum )

void __builtin_write16 (void * data , unsigned short datum )

void __builtin_write32 (void * data , unsigned long datum )

void __builtin_write64 (void * data , unsigned long long datum )