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Altera_Forum's avatar
Altera_Forum
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13 years ago

EXT Function Error

I've used the following line of code in Xilinx with no issue, but now Quartus is flagging this as an error. The error is shown below. --error Error (10779): VHDL error at addr.vhd(609): exp...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

assuming this is outside a process: 


with az_scale_fact1 select
  sum_azp_azpos_scale <=      sum_azp_azpos_comp(15 downto 0)       when "000",
                         EXT( sum_azp_azpos_comp(15 downto 1) , 16) when "001",
                         EXT( sum_azp_azpos_comp(15 downto 2) , 16) when "010",
  --etc

can I ask why az_scale_fact1 is a std_logic_vector and not an integer?

and also - Im going to be a code facist - any chance you want to come into the 1990's and use IEEE standard VHDL?