2006 年 54 巻 2 号 p. 2_55-2_61
In a microcomputer design educational environment City-1, where individual junior student in Hiroshima city university designs and fabricates an original computer on an A4-board with field programmable gate array (FPGA) in 15 weeks every year, a new education theory known as “situated learning”, introduced by Lave and Wenger, has been applied successfully. The very first step is called way-in, which we have found very critical for the success of the whole learning. Instruction-issue-logic has been chosen as such way-in, because it is the central part of the superscalar microprocessors. In 2004, 16 out of 52 junior students were successful in bringing their original devices into their microprocessors. In 2005, a couple of the students contributed to a project named dynamically-reconfigurable-issue-logic (DRIL), which is an experiment to construct dynamically-reconfigurable-superscalar (DRSS) microprocessors which can control the energy efficiency in a single clock cycle.