+ test SEQ_FLAGS2, SELECTOUT_QFROZEN jz check_waiting_list;
+ /*
+ * If the kernel has caught up with us, thaw the queue.
+ */
+ mov A, KERNEL_QFREEZE_COUNT;
+ cmp QFREEZE_COUNT, A jne check_frozen_completions;
+ mov A, KERNEL_QFREEZE_COUNT[1];
+ cmp QFREEZE_COUNT[1], A jne check_frozen_completions;
+ and SEQ_FLAGS2, ~SELECTOUT_QFROZEN;
+ jmp check_waiting_list;
+check_frozen_completions:
+ test SSTAT0, SELDO|SELINGO jnz idle_loop_checkbus;
+BEGIN_CRITICAL;
+ /*
+ * If we have completions stalled waiting for the qfreeze
+ * to take effect, move them over to the complete_scb list
+ * now that no selections are pending.
+ */
+ cmp COMPLETE_ON_QFREEZE_HEAD[1],SCB_LIST_NULL je idle_loop_checkbus;
+ /*
+ * Find the end of the qfreeze list. The first element has
+ * to be treated specially.
+ */
+ bmov SCBPTR, COMPLETE_ON_QFREEZE_HEAD, 2;
+ cmp SCB_NEXT_COMPLETE[1], SCB_LIST_NULL je join_lists;
+ /*
+ * Now the normal loop.
+ */
+ bmov SCBPTR, SCB_NEXT_COMPLETE, 2;
+ cmp SCB_NEXT_COMPLETE[1], SCB_LIST_NULL jne . - 1;
+join_lists:
+ bmov SCB_NEXT_COMPLETE, COMPLETE_SCB_HEAD, 2;
+ bmov COMPLETE_SCB_HEAD, COMPLETE_ON_QFREEZE_HEAD, 2;
+ mvi COMPLETE_ON_QFREEZE_HEAD[1], SCB_LIST_NULL;
+ jmp idle_loop_checkbus;
+check_waiting_list: