Conditional and Sequential Statements (10.5.3, 10.5.4)
VHDL 2008 supports conditional and selected sequential statements.
DFFwithReset_inst: Process(All)
begin
if clk'event and clk='1' then
c(26)<= '0' when reset else A(11); -- c(26) is Q and A(11) is D
end if;
end process;