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reverse ordering of finality conditions

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Danny Ryan 2019-01-23 17:14:38 -06:00
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specs/core/0_beacon-chain.md
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@ -1643,10 +1643,10 @@ First, update the justification bitfield:
Next, update last finalized slot if possible: Next, update last finalized slot if possible:
* Set `state.finalized_slot = state.justified_slot` if `(state.justification_bitfield >> 0) % 4 == 0b11 and state.justified_slot == previous_epoch_start_slot`. * Set `state.finalized_slot = state.previous_justified_slot` if `(state.justification_bitfield >> 1) % 8 == 0b111 and state.previous_justified_slot == previous_epoch_start_slot - 2 * EPOCH_LENGTH`.
* Set `state.finalized_slot = state.previous_justified_slot` if `(state.justification_bitfield >> 1) % 4 == 0b11 and state.previous_justified_slot == previous_epoch_start_slot - EPOCH_LENGTH`. * Set `state.finalized_slot = state.previous_justified_slot` if `(state.justification_bitfield >> 1) % 4 == 0b11 and state.previous_justified_slot == previous_epoch_start_slot - EPOCH_LENGTH`.
* Set `state.finalized_slot = state.justified_slot` if `(state.justification_bitfield >> 0) % 8 == 0b111 and state.justified_slot == previous_epoch_start_slot - EPOCH_LENGTH`. * Set `state.finalized_slot = state.justified_slot` if `(state.justification_bitfield >> 0) % 8 == 0b111 and state.justified_slot == previous_epoch_start_slot - EPOCH_LENGTH`.
* Set `state.finalized_slot = state.previous_justified_slot` if `(state.justification_bitfield >> 1) % 8 == 0b111 and state.previous_justified_slot == previous_epoch_start_slot - 2 * EPOCH_LENGTH`. * Set `state.finalized_slot = state.justified_slot` if `(state.justification_bitfield >> 0) % 4 == 0b11 and state.justified_slot == previous_epoch_start_slot`.
Finally, update the following: Finally, update the following: