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https://opencores.org/ocsvn/minimips/minimips/trunk
[/] [minimips/] [trunk/] [miniMIPS/] [bench/] [bench_minimips.vhd] - Diff between revs 14 and 17
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| Rev 14 |
Rev 17 |
| Line 156... |
Line 156... |
process (ram_adr, ram_r_w, ram_data)
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process (ram_adr, ram_r_w, ram_data)
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begin -- Emulation of an I/O controller
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begin -- Emulation of an I/O controller
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ram_data <= (others => 'Z');
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ram_data <= (others => 'Z');
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case ram_adr is
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case ram_adr is
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when X"00001000" => -- declenche une lecture avec interruption
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when X"00001000" => -- program an interrupt after 1000ns
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it_mat <= '1' after 1000 ns;
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it_mat <= '1' after 1000 ns;
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ram_rdy <= '1' after 5 ns;
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ram_rdy <= '1' after 5 ns;
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when X"00001001" => -- fournit la donnee et lache l'it
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when X"00001001" => -- clear interrupt line on cpu
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it_mat <= '0';
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it_mat <= '0';
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ram_data <= X"FFFFFFFF";
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ram_data <= X"FFFFFFFF";
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ram_rdy <= '1' after 5 ns;
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ram_rdy <= '1' after 5 ns;
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when others => ram_rdy <= 'L';
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when others => ram_rdy <= 'L';
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end case;
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end case;
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