Simulation program and simulation apparatus

A simulation program stored in a computer readable recording medium to execute a simulation of first and second simulation objects, comprising:

• a storage which stores one of an initial state, a read waiting state and a write waiting state for channel used for data transfer between the first simulation object and the second simulation object;
• a receiver which receives a write request from the first simulation object to the second simulation object through the channel during the simulation;
• a judgment unit which, upon reception of the write request, judges whether the state corresponding to the channel stored is the write waiting state or not;
• a storing unit which stores data corresponding to the channel when judging to be the write waiting state;
• and
• a changer which changes the state corresponding to the channel to the initial state based on the data storage.

A simulation apparatus for executing the simulation of first and second simulation objects, comprising:

• a channel for data transfer between the first simulation object and the second simulation object;
• and
• a simulator which executes and suspends the simulation the first and second simulation objects in accordance with a request from the channel;
• wherein the channel includes:
• a storage which stores one of an initial state, a read waiting state and a write waiting state;
• a receiver which receives the read request or the write request for the second simulation object from the first simulation object through the channel during the simulation;
• a judgment unit which, upon reception of the read request or the write request, judges whether the state corresponding to the channel is the read waiting state or the write waiting state;
• a transmitter which transmits the data corresponding to the channel stored in a storage area to the first simulation object when judging to be the read waiting state;
• a storing unit which stores the data corresponding to the channel in the storage area when judging to be the write waiting state;
• and
• a changer which changes the state corresponding to the channel to the initial state based on the data transmission or the data storage.