> GCC shouldn't reorder the operations because you have them declared as > 'volatile', however I have a MIPS CPU where the hardware writeback buffer > seems to do reordering... > > David Daney > Can volatile do this? I thought volatile just forced GCC to read the memory location each time rather than cahed the value in a register. And I am interested in the details how your MIPS CPU hardware reordered instructions. Best Regard ----------------- PRC Sep 4, 2008
