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[openrisc] or1200 on cyclone
Today ,I port the or1200 onto my ep1c12qc240 board.it has cpu, ram,
rom and an io module wrote by myself,all other are removed.The speed
is 10MHz,but the synthesis resulte tells 33.5MHz.Now it costs too much
LEs,for rom and registers file are implemented in LEs.Only a few
instruction is tested,but i promise i'll test all instruction.My aim is run
uclinux on my board wth 16550, ps2 and LCD.
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