| 摘要 |
PURPOSE:To completely eliminate manual work rewriting operands by providing an automatic operand modifying function which replaces an operand included in an instruction with the prescribed operand in the prescribed register and then executes the instruction. CONSTITUTION:The instruction is readout of a main memory device 2 and the instruction code part is compared with the contents of a modified object instruction code holding register 103. If they are the same, the operand part in the readout instruction is compared with the contents of a modified object operand holding register 104. If they are the same, the operand part in the readout instruction is substituted with the operand part stored in a modified operand holding register 102.The contents of a fetch instruction holding register 105 where the operand part is substituted are transferred and executed to an execution instruction holding register 101.
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