Lines Matching refs:ebx
70 * contiguous region of the commpage. Register %ebx is used as a flag register;
71 * before entering the PFZ, %ebx is cleared. If some event occurs that would normally
72 * result in a premption while in the PFZ, the kernel sets %ebx nonzero instead of
73 * preempting. Then, when the routine leaves the PFZ we check %ebx and
91 * %ebx == preempion pending flag (kernel sets nonzero if we should preempt)
110 testl %ebx,%ebx // kernel trying to preempt us?
156 xorl %ebx,%ebx // clear preemption flag
173 * %ebx = preempion pending flag (kernel sets nonzero if we should preempt)
191 testl %ebx,%ebx // kernel trying to preempt us?
219 xorl %ebx,%ebx // clear preemption flag