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Change SHL SHR RLC RRC to set overflow to 0 #3

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Change SHL SHR RLC RRC to set overflow to 0 #3

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2 changes: 1 addition & 1 deletion alu.vhd
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Original file line number Diff line number Diff line change
Expand Up @@ -155,7 +155,7 @@ Oflag:flags_tmp(3) <= '1' when ( (a(15)='0' and b(15)='0' and tmp_out(15)='1' an
or ( a(15)='0' and tmp_out(15)='1' and s = "1100") -- a+1
or ( a(15)='1' and tmp_out(15)='0' and s = "1101") -- a-1
)
else ( flags_tmp(0) xor flags_tmp (2)) when (s="1000" or s="1001" or s="0111" or s="0110") --Shift And Rotate

else '0';


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