RTEMS 4.9.4 On-Line Library

PowerPC Specific Information Use Multiword Load/Store Instructions

RTEMS CPU Architecture Supplement

7.1.6: Use Multiword Load/Store Instructions

The macro PPC_USE_MULTIPLE is set to 1 to indicate that multiword load and store instructions should be used to perform context switch operations. The relative efficiency of multiword load and store instructions versus an equivalent set of single word load and store instructions varies based upon the PowerPC model.

RTEMS CPU Architecture Supplement