Patent ID: 7210007

Claim:
A method of verifying a system in which a plurality of master devices share a storage device, said method comprising the steps of: setting an initial value of data stored in each address of the storage device in a scoreboard common to all master devices, wherein the initial value of data stored in each address of the storage device is set in the scoreboard in correspondence with the address, and wherein the initial value of data stored in each address of the storage device is set in the scoreboard when starting verification; updating data stored in the scoreboard in correspondence with a first address of the storage device with data written to the first address of the storage device, wherein the data stored in the scoreboard in correspondence with the first address of the storage device is updated when any one of the master devices writes data in the first address of the storage device; and comparing data read out of a second address of the storage device with data stored in the scoreboard in correspondence with the second address of the storage device, wherein the data read out of the second address of the storage device is compared with the data stored in the scoreboard in correspondence with the second address of the storage device when any one of the master devices reads out data of the second address of the storage device.