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[/] [cpu_lecture/] [trunk/] [src/] [opc_deco.vhd] - Diff between revs 20 and 23
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Rev 20 |
Rev 23 |
Line 458... |
Line 458... |
when "0001" => -- RETI
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when "0001" => -- RETI
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Q_ALU_OP <= ALU_INTR;
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Q_ALU_OP <= ALU_INTR;
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Q_IMM(6) <= '1';
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Q_IMM(6) <= '1';
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Q_AMOD <= AMOD_iiSP;
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Q_AMOD <= AMOD_iiSP;
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Q_RD_M <= I_T0;
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Q_RD_M <= I_T0;
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Q_WE_F <= not I_T0; -- I flag
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Q_WE_XYZS <= not I_T0;
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Q_WE_XYZS <= not I_T0;
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if (I_T0 = '0') then
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if (I_T0 = '0') then
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Q_PC_OP <= PC_LD_S;
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Q_PC_OP <= PC_LD_S;
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end if;
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end if;
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