| 摘要 |
PROBLEM TO BE SOLVED: To provide a microprocessor in which it is possible to quickly perform access to data and a compiler for a program to be executed by the microprocessor. SOLUTION: This microprocessor 40 is provided with an instruction decoder 6 for decoding successively read instruction codes, and for generating a control signal, an address register 11 for storing and generating address information, an ALU 9 for performing various arithmetic operations and an internal RAM 7 for temporarily storing information. Address decode parts 7A, 7B and 7C of the internal RAM 7 are configured of a high order address decoder and a low order address decoder, and generates an overall address decode signal from a high order address decode signal and a low order address decode signal. In this case, delay until the low order address decode signal of the low order address decoder is derived is shorter than delay until the high order address decode signal of the high address decoder is derived. COPYRIGHT: (C)2005,JPO&NCIPI
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