Dragon In Action

E

Sm

M

Sc

PrWr/--

PrRd/--

PrWr/--

PrRd/--

PrRd/--

BusUpd/Update

PrRdMiss/

BusRd(S’)

PrWrMiss/

(BusRd(S);

BusUpd)

PrRd/--

BusRd/Flush

PrWr/

BusUpd(S)

PrWr/

BusUpd(S’)

PrRdMiss/

BusRd(S)

PrWrMiss/

BusRd(S’)

PrWr/BusUpd(S’)

PrRd/--

PrWr/BusUpd(S)

BusRd/Flush

BusUpd/Update

Proc

Action P0 P1 P2 Bus Data

P0: r a E - - BRd Mem

P2: r a Sc - Sc BRd Mem

P2:w a Sc - Sm BUpd P2

Proc

Action P0 P1 P2 Bus Data

P0: r a Sc - Sm null -

P1: r a Sc Sc Sm BRd P2

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