Computer system controlling memory allocation

A computer system having a CPU and a memory controller to control allocation of memory in the computer system, the memory controller allocating a part of the memory as a special memory area for CPU command conversion or real-time compilation, comprising:

• a calculating formula storage unit to store a formula to calculate a capacity of the special memory area corresponding to a capacity of memory mounted in the computer system;
• and
• a special memory area setting unit to allocate a part of the mounted memory as a special memory area of the computer system based on the formula stored in the calculating formula storage unit at a starting time of the computer system.

A computer system having a CPU and a memory controller to control allocation of memory, the memory controller allocating a part of the memory as a special memory area for CPU command conversion or real-time compilation, comprising:

• a special memory area setting unit including a software interface to set a capacity setting value of the special memory area, indicating a capacity of the special memory, based on an operation executed by an operator.

A computer system having a CPU and a memory controller to control allocation of memory, the memory controller allocating a part of the memory as a special memory area for CPU command conversion or real-time compilation, comprising:

• a memory use state monitoring unit to monitor an amount of use of the memory by a user using the computer system;
• and
• a special memory area setting unit to set a capacity of the special memory area based on a monitoring result of the memory use amount by said memory use state monitoring unit.