| 摘要 |
PROBLEM TO BE SOLVED: To remove an error, especially, a transient error within a small clock cycle while avoiding an increase in cost about hardware. SOLUTION: In an error removing device for removing an error in a processor having two execution units, an instruction is superimposed in the two execution units and processed, and an error is recognized in accordance with a discrepancy between the instruction and/or information associated with the instruction. A first register in the error removing device is formed so as to be able to extract a state of preprocessing step of a processor and contents of a second register from the first register, and a roll back means rolls back at least one instruction and/or information to the first register and executes the instruction and/or information again. COPYRIGHT: (C)2006,JPO&NCIPI |
