Forum: FPGA, VHDL & Verilog Alliance CAD tool VHDL problem

Author: yaser fathy (Guest)
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I'm learning an opensource cad tool called alliance , it takes a vhdl 
design and turns it into a wafer digital layout , its VHDL compiler is 
called SYF , the problem is that a code that compiled successfully on 
modelsim won't compile here , my VHDL is not very strong so I hope 
someone could give my an explanation :

the problem is with variable declaration

   variable addr : std_logic_vector (7 DOWNTO 0);

at the variable declaration line

any help ?


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