| 摘要 |
In a computer for executing a computer program, apparatus and a method for updating information within a computer program instruction without interrupting execution of the computer program. The apparatus contains a memory (108) for storing the information within the instruction at an address within the memory (108), circuitry (102, 106, 110) for altering, between periodic accesses to the memory (108) by the accessing circuitry, the information stored in the memory (108). In this manner, computer program execution is not interrupted to alter information within the instruction. Typically, the information is a data field value contained within a computer microcode instruction. Consequently, the data field value is updated, but other information within the instruction such as an operational code (OPcode), is not altered by the updated operation. |
