mips_sys

fixed srl instruction (no sign extension!)
Parent 6360daf
Stefan Schuermans

Stefan Schuermans commited on 2012-04-05 21:32:02
Showing 1 changed files, with 1 additions and 1 deletions.

mips/alu.vhd
View file @ 293f304
... ... 
@@ -59,7 +59,7 @@ BEGIN
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             WHEN alu_sub => o_res <= std_logic_vector(v_op1_s - v_op2_s);
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             WHEN alu_sll => s_shift_arith <= '0'; s_shift_left <= '1'; o_res <= s_shift_out;
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             WHEN alu_sra => s_shift_arith <= '1'; s_shift_left <= '0'; o_res <= s_shift_out;
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-            WHEN alu_srl => s_shift_arith <= '1'; s_shift_left <= '0'; o_res <= s_shift_out;
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+            WHEN alu_srl => s_shift_arith <= '0'; s_shift_left <= '0'; o_res <= s_shift_out;
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             WHEN alu_slt => IF v_op1_s < v_op2_s THEN
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                                 o_res <= X"00000001";
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                             ELSE
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