| 摘要 |
Processing exceptions that might occur upon the processor's execution of an instruction (13), such as a load or store instruction, may be anticipated and resolved in advance of execution of the instruction by first executing a check instruction (1) that mimics the aforementioned instruction in all material respects, except that the check instruction excludes and is unable to perform the final operation prescribed by the mimicked instruction. A variety of those check instructions are provided to respectively mimic the multiple types of loads and stores (and other operations) normally occurring in processing of computer instructions. The check instructions are particularly useful to check instructions that call for input-output operations.
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