次のコードがあります。
process(value_counter, hex5_value)
begin
if(value_counter <= x"0F") then
with value_counter select hex4 <= --error on this line
"0111111" when x"00",
"0000110" when x"01",
"1011011" when x"02",
"1001111" when x"03",
"1100110" when x"04",
"1101101" when x"05",
"1111101" when x"06",
"0000111" when x"07",
"1111111" when x"08",
"1101111" when x"09",
"1110111" when x"0A",
"1111100" when x"0B",
"0111001" when x"0C",
"1011110" when x"0D",
"1111001" when x"0E",
"1110001" when x"0F";
hex5<="0111111";
elsif(value_counter > x"0F") then
with value_counter mod 10 select hex4 <=
"0111111" when x"00",
"0000110" when x"01",
"1011011" when x"02",
"1001111" when x"03",
"1100110" when x"04",
"1101101" when x"05",
"1111101" when x"06",
"0000111" when x"07",
"1111111" when x"08",
"1101111" when x"09",
"1110111" when x"0A",
"1111100" when x"0B",
"0111001" when x"0C",
"1011110" when x"0D",
"1111001" when x"0E",
"1110001" when x"0F";
with hex5_value select hex5 <=
"0111111" when x"00",
"0000110" when x"01",
"1011011" when x"02",
"1001111" when x"03",
"1100110" when x"04",
"1101101" when x"05",
"1111101" when x"06",
"0000111" when x"07",
"1111111" when x"08",
"1101111" when x"09",
"1110111" when x"0A",
"1111100" when x"0B",
"0111001" when x"0C",
"1011110" when x"0D",
"1111001" when x"0E",
"1110001" when x"0F";
end if;
end process;
しかし、それを実行すると、指定された行で次のエラーが発生します: Error (10500): VHDL syntax error at xxx near text "with"; expecting "end", or "(", or an identifier ("with" is a reserved keyword), or a sequential statement
. これを引き起こしている原因と、合法的かつ同等に書き直す方法を知っている人はいますか?