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Known differences between SimH, 11/70, and w11a

SimH: MMU maintenance mode not implemented

The 11/70 has an MMU maintenance mode, actived with MMR0 bit 8. When activated, only destination mode references will be relocated.

The SimH does not implement this feature.

The xxdp program ekbee1 uses this feature in test 046. This test is modified when executed on w11 (see patch).

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