ARM指令集体系结构下的并行机制

ARM，指令集，并行机制，RISC处理器，数据层并行化，线程层并行化，原子操作指令，多内核处理器，旋转锁，内存一致性，中断子系统
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[20] Number 3, Autumn 2005
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[21] Number 3, Autumn 2005
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[22] Number 3, Autumn 2005
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[23] Number 3, Autumn 2005
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[24] Number 3, Autumn 2005
 static inline void _raw_spin_lock(spinlock_t *lock)
{
unsigned long tmp;

_asm__ __volatile__(
1: ldrex %0, [%1] ; exclusive read lock
teq %0, #0 ; check if free
wfene ; if not, wait (saves power)
strexeq %0, %2, [%